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igb: set max size RX buffer when store bad packet is enabled

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commit bb5ed01cd2 upstream.

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: 89eaefb61d ("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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Radoslaw Tyl
2023-08-24 13:46:19 -07:00
committed by Greg Kroah-Hartman
parent d579038659
commit be7353af5b
1 changed files with 7 additions and 4 deletions
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11
drivers/net/ethernet/intel/igb/igb_main.c
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@@ -4737,6 +4737,10 @@ 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);
@@ -4747,10 +4751,9 @@ 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
}