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| author | Tan Tee Min <tee.min.tan@linux.intel.com> | 2022-04-29 19:58:07 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-05-01 13:20:03 +0100 |
| commit | 47f753c1108e287edb3e27fad8a7511a9d55578e (patch) | |
| tree | f1befd2a2c891278284f322e6b1c74fc60227865 /include | |
| parent | a9384a4c1d250cb40cebf50e41459426d160b08e (diff) | |
| download | linux-rpi-47f753c1108e287edb3e27fad8a7511a9d55578e.tar.gz linux-rpi-47f753c1108e287edb3e27fad8a7511a9d55578e.tar.bz2 linux-rpi-47f753c1108e287edb3e27fad8a7511a9d55578e.zip | |
net: stmmac: disable Split Header (SPH) for Intel platforms
Based on DesignWare Ethernet QoS datasheet, we are seeing the limitation
of Split Header (SPH) feature is not supported for Ipv4 fragmented packet.
This SPH limitation will cause ping failure when the packets size exceed
the MTU size. For example, the issue happens once the basic ping packet
size is larger than the configured MTU size and the data is lost inside
the fragmented packet, replaced by zeros/corrupted values, and leads to
ping fail.
So, disable the Split Header for Intel platforms.
v2: Add fixes tag in commit message.
Fixes: 67afd6d1cfdf("net: stmmac: Add Split Header support and enable it in XGMAC cores")
Cc: <stable@vger.kernel.org> # 5.10.x
Suggested-by: Ong, Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Mohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: Tan Tee Min <tee.min.tan@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/stmmac.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 24eea1b05ca2..29917850f079 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -270,5 +270,6 @@ struct plat_stmmacenet_data { int msi_rx_base_vec; int msi_tx_base_vec; bool use_phy_wol; + bool sph_disable; }; #endif |