diff mbox series

[iwl-net] igb: set max size RX buffer when store bad packet is enabled

Message ID 20230818122354.70099-1-radoslawx.tyl@intel.com
State Superseded
Headers show
Series [iwl-net] igb: set max size RX buffer when store bad packet is enabled | expand

Commit Message

Radoslaw Tyl Aug. 18, 2023, 12:23 p.m. UTC 
Increase the RX buffer size to 3K when the SBP bit is on. The size of
the RX buffer determines the number of pages allocated which may not
be sufficient for receive frames larger than the set MTU size.

Fixes: 89eaefb61dc9 ("igb: Support RX-ALL feature flag.")
Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 2293ae78f711..134a607ea3fe 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -4814,6 +4814,8 @@  void igb_configure_rx_ring(struct igb_adapter *adapter,
 static void igb_set_rx_buffer_len(struct igb_adapter *adapter,
 				  struct igb_ring *rx_ring)
 {
+	struct e1000_hw *hw = &adapter->hw;
+
 	/* set build_skb and buffer size flags */
 	clear_ring_build_skb_enabled(rx_ring);
 	clear_ring_uses_large_buffer(rx_ring);
@@ -4824,10 +4826,9 @@  static void igb_set_rx_buffer_len(struct igb_adapter *adapter,
 	set_ring_build_skb_enabled(rx_ring);
 
 #if (PAGE_SIZE < 8192)
-	if (adapter->max_frame_size <= IGB_MAX_FRAME_BUILD_SKB)
-		return;
-
-	set_ring_uses_large_buffer(rx_ring);
+	if (adapter->max_frame_size > IGB_MAX_FRAME_BUILD_SKB ||
+	    rd32(E1000_RCTL) & E1000_RCTL_SBP)
+		set_ring_uses_large_buffer(rx_ring);
 #endif
 }