AuxXxilium/linux_dsm_epyc7002
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net: ethernet: aquantia: Fixed incorrect buff->len calculation.

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rxd_wb->pkt_len is the total length of the packet.
If we received a large packet (with length > AQ_CFG_RX_FRAME_MAX) then we
will get multiple buffers. We need to fix the length of the last buffer.

Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Belous 2017-02-20 22:36:48 +03:00 committed by David S. Miller
parent 55629109d9
commit c0788f7463
2 changed files with 4 additions and 4 deletions
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4
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
View File

@ -659,8 +659,8 @@ static int hw_atl_a0_hw_ring_rx_receive(struct aq_hw_s *self,
}
if (HW_ATL_A0_RXD_WB_STAT2_EOP & rxd_wb->status) {
buff->len = (rxd_wb->pkt_len &
(AQ_CFG_RX_FRAME_MAX - 1U));
buff->len = rxd_wb->pkt_len %
AQ_CFG_RX_FRAME_MAX;
buff->len = buff->len ?
buff->len : AQ_CFG_RX_FRAME_MAX;
buff->next = 0U;

4
drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
View File

@ -673,8 +673,8 @@ static int hw_atl_b0_hw_ring_rx_receive(struct aq_hw_s *self,
}
if (HW_ATL_B0_RXD_WB_STAT2_EOP & rxd_wb->status) {
buff->len = (rxd_wb->pkt_len &
(AQ_CFG_RX_FRAME_MAX - 1U));
buff->len = rxd_wb->pkt_len %
AQ_CFG_RX_FRAME_MAX;
buff->len = buff->len ?
buff->len : AQ_CFG_RX_FRAME_MAX;
buff->next = 0U;