[PATCH 13/40] nitro_enclaves: Log a reached device limit at info level

[Alexander Graf <graf@amazon.com>]

When a parent asks for more enclave slots than the device has room for,
or for more enclaves than its quota allows, the device answers -ENOSPC
or NE_ERR_TOO_MANY_ENCLAVES and the driver logs an error for each
refused command, although user space gets the code back. Log the two at
info level.

Signed-off-by: Alexander Graf <graf@amazon.com>
---
 drivers/virt/nitro_enclaves/ne_pci_dev.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/virt/nitro_enclaves/ne_pci_dev.c b/drivers/virt/nitro_enclaves/ne_pci_dev.c
index 2d44cae4ac0cf..f258e04ee9e47 100644
--- a/drivers/virt/nitro_enclaves/ne_pci_dev.c
+++ b/drivers/virt/nitro_enclaves/ne_pci_dev.c
@@ -261,8 +261,18 @@ int ne_do_request(struct pci_dev *pdev, enum ne_pci_dev_cmd_type cmd_type,
 	if (cmd_reply->rc < 0) {
 		rc = cmd_reply->rc;
 
-		dev_err_ratelimited(&pdev->dev, "Error in cmd process logic, cmd type=%u [rc=%d]\n",
-				    cmd_type, rc);
+		if (rc == -ENOSPC) {
+			dev_info_ratelimited(&pdev->dev,
+					     "No room for cmd type=%u [rc=%d]\n",
+					     cmd_type, rc);
+		} else if (rc == -NE_ERR_TOO_MANY_ENCLAVES) {
+			dev_info_ratelimited(&pdev->dev,
+					     "Enclave quota reached for cmd type=%u [rc=%d]\n",
+					     cmd_type, rc);
+		} else {
+			dev_err_ratelimited(&pdev->dev, "Error in cmd process logic, cmd type=%u [rc=%d]\n",
+					    cmd_type, rc);
+		}
 
 		goto unlock_mutex;
 	}
-- 
2.47.1