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29dded89e8
mirror_ubuntu-kernels/drivers/net/ethernet
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Saeed Mahameed 29dded89e8 net/mlx4_en: Force CHECKSUM_NONE for short ethernet frames 
When an ethernet frame is padded to meet the minimum ethernet frame
size, the padding octets are not covered by the hardware checksum.
Fortunately the padding octets are usually zero's, which don't affect
checksum. However, it is not guaranteed. For example, switches might
choose to make other use of these octets.
This repeatedly causes kernel hardware checksum fault.

Prior to the cited commit below, skb checksum was forced to be
CHECKSUM_NONE when padding is detected. After it, we need to keep
skb->csum updated. However, fixing up CHECKSUM_COMPLETE requires to
verify and parse IP headers, it does not worth the effort as the packets
are so small that CHECKSUM_COMPLETE has no significant advantage.

Future work: when reporting checksum complete is not an option for
IP non-TCP/UDP packets, we can actually fallback to report checksum
unnecessary, by looking at cqe IPOK bit.

Fixes: 88078d98d1 ("net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends")
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-12 12:26:21 -05:00
..
3com net: documentation: build a directory structure for drivers 2018-12-05 11:30:06 -08:00
8390
adaptec
aeroflex cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
agere
alacritech cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
allwinner
alteon net: alteon: replace dev_kfree_skb_irq by dev_consume_skb_irq 2019-01-28 23:09:19 -08:00
altera net: altera_tse: fix msgdma_tx_completion on non-zero fill_level case 2019-01-27 10:39:07 -08:00
amazon cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
amd net: amd8111e: replace dev_kfree_skb_irq by dev_consume_skb_irq 2019-01-28 23:09:19 -08:00
apm cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
apple net: apple: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-01-28 23:09:19 -08:00
aquantia Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-12-09 21:43:31 -08:00
arc net: ethernet: Convert phydev advertize and supported from u32 to link mode 2018-11-11 10:10:01 -08:00
atheros cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
aurora
broadcom net: broadcom: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-02-06 17:38:15 -08:00
brocade
cadence net: macb: Apply RXUBR workaround only to versions with errata 2019-01-29 09:41:04 -08:00
calxeda
cavium net: Don't default Cavium PTP driver to 'y' 2019-02-06 19:48:15 -08:00
chelsio Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-16 05:13:36 +12:00
cirrus net: documentation: build a directory structure for drivers 2018-12-05 11:30:06 -08:00
cisco enic: fix checksum validation for IPv6 2019-02-01 14:41:42 -08:00
cortina net: gemini: Fix copy/paste error 2018-11-23 22:35:38 -08:00
davicom
dec net: tulip: de2104x: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-02-06 17:38:15 -08:00
dlink net: documentation: build a directory structure for drivers 2018-12-05 11:30:06 -08:00
emulex cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
ezchip
faraday cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
freescale net: fec_mpc52xx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-02-06 17:38:15 -08:00
fujitsu
hisilicon net: hns: Fix wrong read accesses via Clause 45 MDIO protocol 2019-01-27 23:01:56 -08:00
hp
huawei cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
i825xx net: i825xx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-01-28 10:53:28 -08:00
ibm ibmveth: Do not process frames after calling napi_reschedule 2019-01-24 22:48:15 -08:00
intel Revert "igb: reduce CPU0 latency when updating statistics" 2019-01-15 13:33:44 -08:00
marvell skge: potential memory corruption in skge_get_regs() 2019-02-01 10:00:22 -08:00
mediatek Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-01-16 05:13:36 +12:00
mellanox net/mlx4_en: Force CHECKSUM_NONE for short ethernet frames 2019-02-12 12:26:21 -05:00
micrel
microchip lan743x: Remove phy_read from link status change function 2019-01-08 16:26:12 -05:00
moxa
mscc USB/PHY patches for 4.21-rc1 2018-12-28 20:30:00 -08:00
myricom cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
natsemi
neterion Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-12-20 11:53:36 -08:00
netronome cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
ni cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
nuvoton w90p910_ether: remove incorrect __init annotation 2018-12-14 14:42:51 -08:00
nvidia
nxp net: lpc_eth: fix trivial comment typo 2018-11-21 16:17:32 -08:00
oki-semi cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
packetengines
pasemi cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
qlogic qed*: Advance drivers version to 8.37.0.20 2019-02-06 16:53:33 -08:00
qualcomm cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
rdc
realtek Revert "r8169: make use of xmit_more and __netdev_sent_queue" 2019-02-10 12:54:48 -08:00
renesas ravb: expand rx descriptor data to accommodate hw checksum 2019-01-23 09:21:22 -08:00
rocker rocker, dsa, ethsw: Don't filter VLAN events on bridge itself 2018-11-23 18:02:24 -08:00
samsung cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
seeq
sfc sfc: initialise found bitmap in efx_ef10_mtd_probe 2019-02-12 11:49:21 -05:00
sgi cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
silan
sis ethernet/sis: Replace synchronize_sched() with synchronize_rcu() 2018-11-27 09:21:36 -08:00
smsc net: smsc: epic100: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-02-06 17:38:15 -08:00
socionext cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
stmicro net: stmmac: Disable EEE mode earlier in XMIT callback 2019-01-30 22:24:49 -08:00
sun net: sun: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-02-06 17:38:15 -08:00
synopsys
tehuti net: tehuti: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-02-06 17:38:15 -08:00
ti net: ti: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-01-28 23:09:19 -08:00
toshiba net: ethernet: Convert phydev advertize and supported from u32 to link mode 2018-11-11 10:10:01 -08:00
tundra cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
via net: via-velocity: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles 2019-02-06 17:38:15 -08:00
wiznet
xilinx cross-tree: phase out dma_zalloc_coherent() 2019-01-08 07:58:37 -05:00
xircom
xscale
dnet.c
dnet.h
ec_bhf.c
ethoc.c
fealnx.c
jme.c
jme.h
Kconfig
korina.c
lantiq_etop.c
lantiq_xrx200.c net: lantiq: Fix returned value in case of error in 'xrx200_probe()' 2018-11-16 19:46:49 -08:00
Makefile
netx-eth.c