nvme-pci: update sqsize when adjusting the queue depth

Update the core sqsize field in addition to the PCIe-specific
q_depth field as the core tagset allocation helpers rely on it.

Fixes: 0da7feaa ("nvme-pci: use the tagset alloc/free helpers")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Hugh Dickins <hughd@google.com>
Link: https://lore.kernel.org/r/20221225103234.226794-3-hch@lst.deSigned-off-by: Jens Axboe <axboe@kernel.dk>

drivers/nvme/host/pci.c

@@ -2333,10 +2333,12 @@ static int nvme_setup_io_queues(struct nvme_dev *dev)
 	if (dev->cmb_use_sqes) {
 		result = nvme_cmb_qdepth(dev, nr_io_queues,
 				sizeof(struct nvme_command));
-		if (result > 0)
+		if (result > 0) {
 			dev->q_depth = result;
-		else
+			dev->ctrl.sqsize = result - 1;
+		} else {
 			dev->cmb_use_sqes = false;
+		}
 	}
 
 	do {
@@ -2537,7 +2539,6 @@ static int nvme_pci_enable(struct nvme_dev *dev)
 
 	dev->q_depth = min_t(u32, NVME_CAP_MQES(dev->ctrl.cap) + 1,
 				io_queue_depth);
-	dev->ctrl.sqsize = dev->q_depth - 1; /* 0's based queue depth */
 	dev->db_stride = 1 << NVME_CAP_STRIDE(dev->ctrl.cap);
 	dev->dbs = dev->bar + 4096;
 
@@ -2578,7 +2579,7 @@ static int nvme_pci_enable(struct nvme_dev *dev)
 		dev_warn(dev->ctrl.device, "IO queue depth clamped to %d\n",
 			 dev->q_depth);
 	}
-
+	dev->ctrl.sqsize = dev->q_depth - 1; /* 0's based queue depth */
 
 	nvme_map_cmb(dev);