AuxXxilium/linux_dsm_epyc7002
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83abb7d7c9
linux_dsm_epyc7002/drivers/net
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Sunil Goutham 83abb7d7c9 net: thunderx: Fix IOMMU translation faults 
ACPI support has been added to ARM IOMMU driver in 4.10 kernel
and that has resulted in VNIC interfaces throwing translation
faults when kernel is booted with ACPI as driver was not using
DMA API. This patch fixes the issue by using DMA API which inturn
will create translation tables when IOMMU is enabled.

Also VNIC doesn't have a seperate receive buffer ring per receive
queue, so there is no 1:1 descriptor index matching between CQE_RX
and the index in buffer ring from where a buffer has been used for
DMA'ing. Unlike other NICs, here it's not possible to maintain dma
address to virt address mappings within the driver. This leaves us
no other choice but to use IOMMU's IOVA address conversion API to
get buffer's virtual address which can be given to network stack
for processing.

Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-03-09 13:12:41 -08:00
..
appletalk net/appletalk: Fix kernel memory disclosure 2017-01-09 16:34:39 -05:00
arcnet lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
bonding Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
caif virtio: allow drivers to request IRQ affinity when creating VQs 2017-02-27 20:54:04 +02:00
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
cris
dsa net:dsa:mv88e6xxx: use watchdog ops for 6097 chip 2017-02-14 11:45:28 -05:00
ethernet net: thunderx: Fix IOMMU translation faults 2017-03-09 13:12:41 -08:00
fddi fddi: skfp: Use more common logging styles 2016-12-29 11:37:14 -05:00
fjes drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
hamradio driver core patches for 4.11-rc1 2017-02-22 11:44:32 -08:00
hippi Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
hyperv netvsc: fix use-after-free in netvsc_change_mtu() 2017-03-02 14:41:36 -08:00
ieee802154 ieee802154: atusb: fix driver to work with older firmware versions 2017-01-12 22:12:43 +01:00
ipvlan ipvtap: IP-VLAN based tap driver 2017-02-11 20:59:41 -05:00
irda sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
phy spi_ks8995: regs_size incorrect for some devices 2017-03-07 13:33:24 -08:00
plip
ppp sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
slip sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
team team: use ETH_MAX_MTU as max mtu 2017-03-08 22:19:17 -08:00
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
vmxnet3 drivers: net: generalize napi_complete_done() 2017-01-30 15:10:42 -05:00
wan sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
wimax scripts/spelling.txt: add "varible" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
xen-netback Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
dummy.c net: dummy: Introduce dummy virtual functions 2017-01-24 14:07:22 -05:00
eql.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
geneve.c geneve: lock RCU on TX path 2017-03-01 09:58:31 -08:00
gtp.c lib/vsprintf.c: remove %Z support 2017-02-27 18:43:47 -08:00
ifb.c net-tc: convert tc_from to tc_from_ingress and tc_redirected 2017-01-08 20:58:52 -05:00
Kconfig vmxnet3: prevent building with 64K pages 2017-02-17 15:25:49 -05:00
LICENSE.SRC
loopback.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-02-11 02:31:11 -05:00
macsec.c macsec: fix validation failed in asynchronous operation. 2017-02-21 13:13:51 -05:00
macvlan.c tap: Abstract type of virtual interface from tap implementation 2017-02-11 20:59:41 -05:00
macvtap.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
Makefile ipvtap: IP-VLAN based tap driver 2017-02-11 20:59:41 -05:00
mdio.c net: mdio: add mdio45_ethtool_ksettings_get 2017-01-02 16:59:10 -05:00
mii.c
netconsole.c
nlmon.c net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00
ntb_netdev.c
rionet.c
sb1000.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
Space.c
sungem_phy.c
tap.c sched/headers: Move task_struct::signal and task_struct::sighand types and accessors into <linux/sched/signal.h> 2017-03-03 01:43:37 +01:00
tun.c sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
veth.c net: make ndo_get_stats64 a void function 2017-01-08 17:51:44 -05:00
virtio_net.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-03-04 17:31:39 -08:00
vrf.c vrf: Fix use-after-free in vrf_xmit 2017-03-08 23:10:02 -08:00
vxlan.c vxlan: lock RCU on TX path 2017-03-01 09:58:31 -08:00
xen-netfront.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-02-22 10:15:09 -08:00