This patch tests whether MCQ initialization and basic read-write
operations work correctly when the MCQ parameter of hw/ufs is enabled.
Signed-off-by: Jeuk Kim <jeuk20....@samsung.com>
---
tests/qtest/ufs-test.c | 171 ++++++++++++++++++++++++++++++++++-------
1 file changed, 142 insertions(+), 29 deletions(-)
diff --git a/tests/qtest/ufs-test.c b/tests/qtest/ufs-test.c
index f5b311554b..d5076bdeb5 100644
--- a/tests/qtest/ufs-test.c
+++ b/tests/qtest/ufs-test.c
@@ -15,6 +15,7 @@
#include "block/ufs.h"
#include "qemu/bitmap.h"
+#define DWORD_BYTE 4
/* Test images sizes in Bytes */
#define TEST_IMAGE_SIZE (64 * 1024 * 1024)
/* Timeout for various operations, in seconds. */
@@ -28,6 +29,10 @@
#define UTP_PRDT_UPIU_OFFSET 2048
#define UTRD_TEST_SLOT 0
#define UFS_MAX_CMD_DESC 32
+/* Constants for MCQ */
+#define TEST_QID 0
+#define QUEUE_SIZE 32
+#define UFS_MCQ_MAX_QNUM 32
typedef struct QUfs QUfs;
@@ -36,12 +41,22 @@ struct QUfs {
QPCIDevice dev;
QPCIBar bar;
- uint64_t utrlba;
DECLARE_BITMAP(cmd_desc_bitmap, UFS_MAX_CMD_DESC);
uint64_t cmd_desc_addr;
uint64_t data_buffer_addr;
bool enabled;
+ bool support_mcq;
+
+ /* for legacy doorbell mode */
+ uint64_t utrlba;
+
+ /* for mcq mode */
+ uint32_t maxq;
+ uint64_t sqlba[UFS_MCQ_MAX_QNUM];
+ uint64_t cqlba[UFS_MCQ_MAX_QNUM];
+ uint64_t sqdao[UFS_MCQ_MAX_QNUM];
+ uint64_t cqdao[UFS_MCQ_MAX_QNUM];
};
static inline uint32_t ufs_rreg(QUfs *ufs, size_t offset)
@@ -106,31 +121,67 @@ static UtpTransferReqDesc ufs_build_req_utrd(uint64_t
command_desc_base_addr,
}
static enum UtpOcsCodes
-ufs_send_transfer_request_sync(QUfs *ufs, uint8_t lun,
- const UtpTransferReqDesc *utrd)
+__ufs_send_transfer_request_doorbell(QUfs *ufs, uint8_t lun,
+ const UtpTransferReqDesc *utrd)
{
- UtpTransferReqDesc utrd_result;
- /*
- * Currently, the transfer request is sent synchronously, so UTRD_TEST_SLOT
- * is fixed to 0. If asynchronous testing is added in the future, this
value
- * should be adjusted dynamically.
- */
uint64_t utrd_addr =
ufs->utrlba + UTRD_TEST_SLOT * sizeof(UtpTransferReqDesc);
+ UtpTransferReqDesc utrd_result;
+
qtest_memwrite(ufs->dev.bus->qts, utrd_addr, utrd, sizeof(*utrd));
- /* Ring Doorbell */
+ /* Ring the doorbell */
ufs_wreg(ufs, A_UTRLDBR, 1);
ufs_wait_for_irq(ufs);
g_assert_true(FIELD_EX32(ufs_rreg(ufs, A_IS), IS, UTRCS));
ufs_wreg(ufs, A_IS, FIELD_DP32(0, IS, UTRCS, 1));
+ /* Handle completed command */
qtest_memread(ufs->dev.bus->qts, utrd_addr, &utrd_result,
sizeof(utrd_result));
-
return le32_to_cpu(utrd_result.header.dword_2) & 0xf;
}
+static enum UtpOcsCodes
+__ufs_send_transfer_request_mcq(QUfs *ufs, uint8_t lun,
+ const UtpTransferReqDesc *utrd)
+{
+ uint32_t sqtp = ufs_rreg(ufs, ufs->sqdao[TEST_QID] + 0x4);
+ uint64_t utrd_addr = ufs->sqlba[TEST_QID] + sqtp;
+ uint32_t cqhp;
+ uint64_t cqentry_addr;
+ UfsCqEntry cqentry;
+
+ qtest_memwrite(ufs->dev.bus->qts, utrd_addr, utrd, sizeof(*utrd));
+
+ /* Insert a new entry into the submission queue */
+ sqtp = ufs_rreg(ufs, ufs->sqdao[TEST_QID] + 0x4);
+ sqtp = (sqtp + sizeof(UfsSqEntry)) % (QUEUE_SIZE * sizeof(UfsSqEntry));
+ ufs_wreg(ufs, ufs->sqdao[TEST_QID] + 0x4, sqtp);
+ ufs_wait_for_irq(ufs);
+ g_assert_true(FIELD_EX32(ufs_rreg(ufs, A_IS), IS, CQES));
+ ufs_wreg(ufs, A_IS, FIELD_DP32(0, IS, CQES, 1));
+
+ /* Handle the completed command from the completion queue */
+ cqhp = ufs_rreg(ufs, ufs->cqdao[TEST_QID]);
+ cqentry_addr = ufs->cqlba[TEST_QID] + cqhp;
+ qtest_memread(ufs->dev.bus->qts, cqentry_addr, &cqentry, sizeof(cqentry));
+ ufs_wreg(ufs, ufs->cqdao[TEST_QID], cqhp);
+
+ return cqentry.status;
+}
+
+static enum UtpOcsCodes
+ufs_send_transfer_request_sync(QUfs *ufs, uint8_t lun,
+ const UtpTransferReqDesc *utrd)
+{
+ if (ufs->support_mcq) {
+ return __ufs_send_transfer_request_mcq(ufs, lun, utrd);
+ }
+
+ return __ufs_send_transfer_request_doorbell(ufs, lun, utrd);
+}
+
static enum UtpOcsCodes ufs_send_nop_out(QUfs *ufs, UtpUpiuRsp *rsp_out)
{
int cmd_desc_slot = alloc_cmd_desc_slot(ufs);
@@ -342,6 +393,10 @@ static void ufs_init(QUfs *ufs, QGuestAllocator *alloc)
g_assert_true(FIELD_EX32(hcs, HCS, UTRLRDY));
g_assert_true(FIELD_EX32(hcs, HCS, UCRDY));
+ /* Check MCQ support */
+ cap = ufs_rreg(ufs, A_CAP);
+ ufs->support_mcq = FIELD_EX32(cap, CAP, MCQS);
+
/* Enable all interrupt functions */
ie = FIELD_DP32(ie, IE, UTRCE, 1);
ie = FIELD_DP32(ie, IE, UEE, 1);
@@ -354,21 +409,66 @@ static void ufs_init(QUfs *ufs, QGuestAllocator *alloc)
ie = FIELD_DP32(ie, IE, HCFEE, 1);
ie = FIELD_DP32(ie, IE, SBFEE, 1);
ie = FIELD_DP32(ie, IE, CEFEE, 1);
+ if (ufs->support_mcq) {
+ ie = FIELD_DP32(ie, IE, CQEE, 1);
+ }
ufs_wreg(ufs, A_IE, ie);
ufs_wreg(ufs, A_UTRIACR, 0);
/* Enable transfer request */
- cap = ufs_rreg(ufs, A_CAP);
- nutrs = FIELD_EX32(cap, CAP, NUTRS) + 1;
ufs->cmd_desc_addr =
guest_alloc(alloc, UFS_MAX_CMD_DESC * UTP_COMMAND_DESCRIPTOR_SIZE);
ufs->data_buffer_addr =
guest_alloc(alloc, MAX_PRD_ENTRY_COUNT * PRD_ENTRY_DATA_SIZE);
- ufs->utrlba = guest_alloc(alloc, nutrs * sizeof(UtpTransferReqDesc));
- ufs_wreg(ufs, A_UTRLBA, ufs->utrlba & 0xffffffff);
- ufs_wreg(ufs, A_UTRLBAU, ufs->utrlba >> 32);
- ufs_wreg(ufs, A_UTRLRSR, 1);
+ if (ufs->support_mcq) {
+ uint32_t mcqcap, qid, qcfgptr, mcq_reg_offset;
+ uint32_t cqattr = 0, sqattr = 0;
+
+ mcqcap = ufs_rreg(ufs, A_MCQCAP);
+ qcfgptr = FIELD_EX32(mcqcap, MCQCAP, QCFGPTR);
+ ufs->maxq = FIELD_EX32(mcqcap, MCQCAP, MAXQ) + 1;
+ for (qid = 0; qid < ufs->maxq; ++qid) {
+ ufs->sqlba[qid] =
+ guest_alloc(alloc, QUEUE_SIZE * sizeof(UtpTransferReqDesc));
+ ufs->cqlba[qid] =
+ guest_alloc(alloc, QUEUE_SIZE * sizeof(UtpTransferReqDesc));
+ mcq_reg_offset = qcfgptr * 0x200 + qid * 0x40;
+
+ ufs_wreg(ufs, mcq_reg_offset + A_SQLBA,
+ ufs->sqlba[qid] & 0xffffffff);
+ ufs_wreg(ufs, mcq_reg_offset + A_SQUBA, ufs->sqlba[qid] >> 32);
+ ufs_wreg(ufs, mcq_reg_offset + A_CQLBA,
+ ufs->cqlba[qid] & 0xffffffff);
+ ufs_wreg(ufs, mcq_reg_offset + A_CQUBA, ufs->cqlba[qid] >> 32);
+
+ /* Enable Completion Queue */
+ cqattr = FIELD_DP32(cqattr, CQATTR, CQEN, 1);
+ cqattr = FIELD_DP32(cqattr, CQATTR, SIZE,
+ QUEUE_SIZE * sizeof(UtpTransferReqDesc) /
+ DWORD_BYTE);
+ ufs_wreg(ufs, mcq_reg_offset + A_CQATTR, cqattr);
+
+ /* Enable Submission Queue */
+ sqattr = FIELD_DP32(sqattr, SQATTR, SQEN, 1);
+ sqattr = FIELD_DP32(sqattr, SQATTR, SIZE,
+ QUEUE_SIZE * sizeof(UtpTransferReqDesc) /
+ DWORD_BYTE);
+ sqattr = FIELD_DP32(sqattr, SQATTR, CQID, qid);
+ ufs_wreg(ufs, mcq_reg_offset + A_SQATTR, sqattr);
+
+ /* Cache head & tail pointer */
+ ufs->sqdao[qid] = ufs_rreg(ufs, mcq_reg_offset + A_SQDAO);
+ ufs->cqdao[qid] = ufs_rreg(ufs, mcq_reg_offset + A_CQDAO);
+ }
+ } else {
+ nutrs = FIELD_EX32(cap, CAP, NUTRS) + 1;
+ ufs->utrlba = guest_alloc(alloc, nutrs * sizeof(UtpTransferReqDesc));
+
+ ufs_wreg(ufs, A_UTRLBA, ufs->utrlba & 0xffffffff);
+ ufs_wreg(ufs, A_UTRLBAU, ufs->utrlba >> 32);
+ ufs_wreg(ufs, A_UTRLRSR, 1);
+ }
/* Send nop out to test transfer request */
ocs = ufs_send_nop_out(ufs, &rsp_upiu);
@@ -402,7 +502,15 @@ static void ufs_init(QUfs *ufs, QGuestAllocator *alloc)
static void ufs_exit(QUfs *ufs, QGuestAllocator *alloc)
{
if (ufs->enabled) {
- guest_free(alloc, ufs->utrlba);
+ if (ufs->support_mcq) {
+ for (uint32_t qid = 0; qid < ufs->maxq; ++qid) {
+ guest_free(alloc, ufs->sqlba[qid]);
+ guest_free(alloc, ufs->cqlba[qid]);
+ }
+ } else {
+ guest_free(alloc, ufs->utrlba);
+ }
+
guest_free(alloc, ufs->cmd_desc_addr);
guest_free(alloc, ufs->data_buffer_addr);
}
@@ -966,12 +1074,16 @@ static void ufs_register_nodes(void)
QOSGraphEdgeOptions edge_opts = {
.before_cmd_line = "-blockdev null-co,node-name=drv0,read-zeroes=on",
.after_cmd_line = "-device ufs-lu,bus=ufs0,drive=drv0,lun=0",
- .extra_device_opts = "addr=04.0,id=ufs0,nutrs=32,nutmrs=8"
+ .extra_device_opts = "addr=04.0,id=ufs0"
};
- QOSGraphTestOptions io_test_opts = {
- .before = ufs_blk_test_setup,
- };
+ QOSGraphTestOptions io_test_opts = { .before = ufs_blk_test_setup,
+ .edge.extra_device_opts =
+ "mcq=false,nutrs=32,nutmrs=8" };
+
+ QOSGraphTestOptions mcq_test_opts = { .before = ufs_blk_test_setup,
+ .edge.extra_device_opts =
+ "mcq=true,mcq-maxq=1" };
add_qpci_address(&edge_opts, &(QPCIAddress){ .devfn = QPCI_DEVFN(4, 0) });
@@ -991,13 +1103,14 @@ static void ufs_register_nodes(void)
return;
}
qos_add_test("init", "ufs", ufstest_init, NULL);
- qos_add_test("read-write", "ufs", ufstest_read_write, &io_test_opts);
- qos_add_test("flag read-write", "ufs",
- ufstest_query_flag_request, &io_test_opts);
- qos_add_test("attr read-write", "ufs",
- ufstest_query_attr_request, &io_test_opts);
- qos_add_test("desc read-write", "ufs",
- ufstest_query_desc_request, &io_test_opts);
+ qos_add_test("legacy-read-write", "ufs", ufstest_read_write,
&io_test_opts);
+ qos_add_test("mcq-read-write", "ufs", ufstest_read_write, &mcq_test_opts);
+ qos_add_test("query-flag", "ufs", ufstest_query_flag_request,
+ &io_test_opts);
+ qos_add_test("query-attribute", "ufs", ufstest_query_attr_request,
+ &io_test_opts);
+ qos_add_test("query-desciptor", "ufs", ufstest_query_desc_request,
+ &io_test_opts);
}
libqos_init(ufs_register_nodes);
--
2.43.0
