[PATCH 5/5] hw/net/can/xlnx-versal-canfd: Handle RX of short FD frames

[Doug Brown]

There was no case for handling received CAN FD frames with a DLC of 0-8.
This was already handled properly with TX. Add similar code for RX.

Signed-off-by: Doug Brown <doug@schmorgal.com>
---
 hw/net/can/xlnx-versal-canfd.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/hw/net/can/xlnx-versal-canfd.c b/hw/net/can/xlnx-versal-canfd.c
index fda1e7016a..ce68dab46a 100644
--- a/hw/net/can/xlnx-versal-canfd.c
+++ b/hw/net/can/xlnx-versal-canfd.c
@@ -1052,10 +1052,15 @@ static void store_rx_sequential(XlnxVersalCANFDState *s,
         if (frame->flags & QEMU_CAN_FRMF_TYPE_FD) {
             is_canfd_frame = true;
 
-            /* Store dlc value in Xilinx specific format. */
-            for (i = 0; i < ARRAY_SIZE(canfd_dlc_array); i++) {
-                if (canfd_dlc_array[i] == frame->can_dlc) {
-                    dlc_reg_val = FIELD_DP32(0, RB_DLC_REGISTER, DLC, 8 + i);
+            if (dlc <= 8) {
+                dlc_reg_val = FIELD_DP32(0, RB_DLC_REGISTER, DLC, dlc);
+            } else {
+                /* Store dlc value in Xilinx specific format. */
+                for (i = 0; i < ARRAY_SIZE(canfd_dlc_array); i++) {
+                    if (canfd_dlc_array[i] == frame->can_dlc) {
+                        dlc_reg_val = FIELD_DP32(0, RB_DLC_REGISTER, DLC,
+                                                 8 + i);
+                    }
                 }
             }
         } else {
-- 
2.34.1