hw/ufs: minor bug fixes related to ufs-test

Minor bugs and errors related to ufs-test are resolved. Some
permissions and code implementations that are not synchronized
with the ufs spec are edited.

Signed-off-by: Yoochan Jeong <yc01.jeong@samsung.com>
Reviewed-by: Jeuk Kim <jeuk20.kim@samsung.com>
Signed-off-by: Jeuk Kim <jeuk20.kim@samsung.com>

hw/ufs/ufs.c

@@ -1111,10 +1111,13 @@ static uint32_t ufs_read_attr_value(UfsHc *u, uint8_t idn)
     return 0;
 }
 
-static void ufs_write_attr_value(UfsHc *u, uint8_t idn, uint32_t value)
+static QueryRespCode ufs_write_attr_value(UfsHc *u, uint8_t idn, uint32_t value)
 {
     switch (idn) {
     case UFS_QUERY_ATTR_IDN_ACTIVE_ICC_LVL:
+        if (value > UFS_QUERY_ATTR_ACTIVE_ICC_MAXVALUE) {
+            return UFS_QUERY_RESULT_INVALID_VALUE;
+        }
         u->attributes.active_icc_level = value;
         break;
     case UFS_QUERY_ATTR_IDN_MAX_DATA_IN:
@@ -1142,6 +1145,7 @@ static void ufs_write_attr_value(UfsHc *u, uint8_t idn, uint32_t value)
         u->attributes.psa_data_size = cpu_to_be32(value);
         break;
     }
+    return UFS_QUERY_RESULT_SUCCESS;
 }
 
 static QueryRespCode ufs_exec_query_attr(UfsRequest *req, int op)
@@ -1158,13 +1162,13 @@ static QueryRespCode ufs_exec_query_attr(UfsRequest *req, int op)
 
     if (op == UFS_QUERY_ATTR_READ) {
         value = ufs_read_attr_value(u, idn);
+        ret = UFS_QUERY_RESULT_SUCCESS;
     } else {
-        value = be32_to_cpu(req->req_upiu.qr.value);
+        value = req->req_upiu.qr.value;
-        ufs_write_attr_value(u, idn, value);
+        ret = ufs_write_attr_value(u, idn, value);
     }
-
     req->rsp_upiu.qr.value = cpu_to_be32(value);
-    return UFS_QUERY_RESULT_SUCCESS;
+    return ret;
 }
 
 static const RpmbUnitDescriptor rpmb_unit_desc = {
@@ -1287,9 +1291,12 @@ static QueryRespCode ufs_read_desc(UfsRequest *req)
     UfsHc *u = req->hc;
     QueryRespCode status;
     uint8_t idn = req->req_upiu.qr.idn;
+    uint8_t selector = req->req_upiu.qr.selector;
     uint16_t length = be16_to_cpu(req->req_upiu.qr.length);
     InterconnectDescriptor desc;
-
+    if (selector != 0) {
+        return UFS_QUERY_RESULT_INVALID_SELECTOR;
+    }
     switch (idn) {
     case UFS_QUERY_DESC_IDN_DEVICE:
         memcpy(&req->rsp_upiu.qr.data, &u->device_desc, sizeof(u->device_desc));

include/block/ufs.h

@@ -763,6 +763,12 @@ typedef struct QEMU_PACKED UtpTaskReqDesc {
  */
 #define UFS_WB_EXCEED_LIFETIME 0x0B
 
+/*
+ * The range of valid value of Active ICC attritbute
+ * is from 0x00 to 0x0F.
+ */
+#define UFS_QUERY_ATTR_ACTIVE_ICC_MAXVALUE 0x0F
+
 /*
  * In UFS Spec, the Extra Header Segment (EHS) starts from byte 32 in UPIU
  * request/response packet

tests/qtest/ufs-test.c

@@ -119,6 +119,7 @@ static void ufs_send_nop_out(QUfs *ufs, uint8_t slot,
 
 static void ufs_send_query(QUfs *ufs, uint8_t slot, uint8_t query_function,
                            uint8_t query_opcode, uint8_t idn, uint8_t index,
+                           uint8_t selector, uint32_t attr_value,
                            UtpTransferReqDesc *utrd_out, UtpUpiuRsp *rsp_out)
 {
     /* Build up utp transfer request descriptor */
@@ -136,13 +137,16 @@ static void ufs_send_query(QUfs *ufs, uint8_t slot, uint8_t query_function,
     req_upiu.header.query_func = query_function;
     req_upiu.header.task_tag = slot;
     /*
-     * QEMU UFS does not currently support Write descriptor and Write attribute,
+     * QEMU UFS does not currently support Write descriptor,
      * so the value of data_segment_length is always 0.
      */
     req_upiu.header.data_segment_length = 0;
     req_upiu.qr.opcode = query_opcode;
     req_upiu.qr.idn = idn;
     req_upiu.qr.index = index;
+    req_upiu.qr.selector = selector;
+    req_upiu.qr.value = attr_value;
+    req_upiu.qr.length = UFS_QUERY_DESC_MAX_SIZE;
     qtest_memwrite(ufs->dev.bus->qts, req_upiu_addr, &req_upiu,
                    sizeof(req_upiu));
 
@@ -344,7 +348,7 @@ static void ufs_init(QUfs *ufs, QGuestAllocator *alloc)
     /* Set fDeviceInit flag via query request */
     ufs_send_query(ufs, 0, UFS_UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST,
                    UFS_UPIU_QUERY_OPCODE_SET_FLAG,
-                   UFS_QUERY_FLAG_IDN_FDEVICEINIT, 0, &utrd, &rsp_upiu);
+                   UFS_QUERY_FLAG_IDN_FDEVICEINIT, 0, 0, 0, &utrd, &rsp_upiu);
     g_assert_cmpuint(le32_to_cpu(utrd.header.dword_2), ==, UFS_OCS_SUCCESS);
 
     /* Wait for device to reset */
@@ -353,7 +357,8 @@ static void ufs_init(QUfs *ufs, QGuestAllocator *alloc)
         qtest_clock_step(ufs->dev.bus->qts, 100);
         ufs_send_query(ufs, 0, UFS_UPIU_QUERY_FUNC_STANDARD_READ_REQUEST,
                        UFS_UPIU_QUERY_OPCODE_READ_FLAG,
-                       UFS_QUERY_FLAG_IDN_FDEVICEINIT, 0, &utrd, &rsp_upiu);
+                       UFS_QUERY_FLAG_IDN_FDEVICEINIT, 0, 0, 0, &utrd,
+                       &rsp_upiu);
     } while (be32_to_cpu(rsp_upiu.qr.value) != 0 &&
              g_get_monotonic_time() < end_time);
     g_assert_cmpuint(be32_to_cpu(rsp_upiu.qr.value), ==, 0);