[PATCH 10/15] block/nvme: Use definitions instead of magic values in add_io_queue()

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

Replace magic values by definitions, and simplifiy since the
number of queues will never reach 64K.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
 block/nvme.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/block/nvme.c b/block/nvme.c
index b841c5950c5..11fba2d754d 100644
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -652,6 +652,7 @@ static bool nvme_add_io_queue(BlockDriverState *bs,
     NvmeCmd cmd;
     unsigned queue_size = NVME_QUEUE_SIZE;
 
+    assert(n <= UINT16_MAX);
     q = nvme_create_queue_pair(s, aio_context, n, queue_size, errp);
     if (!q) {
         return false;
@@ -659,8 +660,8 @@ static bool nvme_add_io_queue(BlockDriverState *bs,
     cmd = (NvmeCmd) {
         .opcode = NVME_ADM_CMD_CREATE_CQ,
         .dptr.prp1 = cpu_to_le64(q->cq.iova),
-        .cdw10 = cpu_to_le32(((queue_size - 1) << 16) | (n & 0xFFFF)),
-        .cdw11 = cpu_to_le32(0x3),
+        .cdw10 = cpu_to_le32(((queue_size - 1) << 16) | n),
+        .cdw11 = cpu_to_le32(NVME_CQ_IEN | NVME_CQ_PC),
     };
     if (nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd)) {
         error_setg(errp, "Failed to create CQ io queue [%u]", n);
@@ -669,8 +670,8 @@ static bool nvme_add_io_queue(BlockDriverState *bs,
     cmd = (NvmeCmd) {
         .opcode = NVME_ADM_CMD_CREATE_SQ,
         .dptr.prp1 = cpu_to_le64(q->sq.iova),
-        .cdw10 = cpu_to_le32(((queue_size - 1) << 16) | (n & 0xFFFF)),
-        .cdw11 = cpu_to_le32(0x1 | (n << 16)),
+        .cdw10 = cpu_to_le32(((queue_size - 1) << 16) | n),
+        .cdw11 = cpu_to_le32(NVME_SQ_PC | (n << 16)),
     };
     if (nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd)) {
         error_setg(errp, "Failed to create SQ io queue [%u]", n);
-- 
2.26.2