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

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commit bb5ed01cd2428cd25b1c88a3a9cba87055eb289f 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 04c3eee4e1
commit d2e906c725
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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@ -4758,6 +4758,10 @@ 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);
@ -4768,10 +4772,9 @@ 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
}