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authorRadoslaw Tyl <radoslawx.tyl@intel.com>2023-08-24 23:46:19 +0300
committerDavid S. Miller <davem@davemloft.net>2023-08-28 09:02:44 +0300
commitbb5ed01cd2428cd25b1c88a3a9cba87055eb289f (patch)
tree960d356dc9cc2d725b451874f119b2b45817e996 /drivers/net
parentc2f8fd7949603efb03908e05abbf7726748c8de3 (diff)
downloadlinux-bb5ed01cd2428cd25b1c88a3a9cba87055eb289f.tar.xz
igb: set max size RX buffer when store bad packet is enabled
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. Cc: stable@vger.kernel.org Fixes: 89eaefb61dc9 ("igb: Support RX-ALL feature flag.") Reported-by: Manfred Rudigier <manfred.rudigier@omicronenergy.com> Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com> Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/ethernet/intel/igb/igb_main.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 9a2561409b06..08e3df37089f 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -4814,6 +4814,10 @@ 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)
{
+#if (PAGE_SIZE < 8192)
+ struct e1000_hw *hw = &adapter->hw;
+#endif
+
/* set build_skb and buffer size flags */
clear_ring_build_skb_enabled(rx_ring);
clear_ring_uses_large_buffer(rx_ring);
@@ -4824,10 +4828,9 @@ 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
}