David S. Miller [Fri, 19 Sep 2014 21:35:30 +0000 (17:35 -0400)]
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:
====================
Intel Wired LAN Driver Updates 2014-09-18
This series contains updates to ixgbe and ixgbevf.
Ethan Zhao cleans up ixgbe and ixgbevf by removing bd_number from the
adapter struct because it is not longer useful.
Mark fixes ixgbe where if a hardware transmit timestamp is requested,
an uninitialized workqueue entry may be scheduled. Added a check for
a PTP clock to avoid that.
Jacob provides a number of cleanups for ixgbe. Since we may call
ixgbe_acquire_msix_vectors() prior to registering our netdevice, we
should not use the netdevice specific printk and use e_dev_warn()
instead. Similar to how ixgbevf handles acquiring MSI-X vectors, we
can return an error code instead of relying on the flag being set.
This makes it more clear that we have failed to setup MSI-X mode and
will make it easier to consolidate MSI-X related code into a single
function. In the case of disabling DCB, it is not an error since we
still can function, we just have to let the user know. So use
e_dev_warn() instead of e_err(). Added warnings for other features
that are disabled when we are without MSI-X support. Cleanup flags
that are no longer used or needed.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 19 Sep 2014 21:30:16 +0000 (17:30 -0400)]
Merge branch 'mlx4-next'
Or Gerlitz says:
====================
mlx4: CQE/EQE stride support
This series from Ido Shamay is intended for archs having
cache line larger then 64 bytes.
Since our CQE/EQEs are generally 64B in those systems, HW will write
twice to the same cache line consecutively, causing pipe locks due to
he hazard prevention mechanism. For elements in a cyclic buffer, writes
are consecutive, so entries smaller than a cache line should be
avoided, especially if they are written at a high rate.
Reduce consecutive writes to same cache line in CQs/EQs, by allowing the
driver to increase the distance between entries so that each will reside
in a different cache line.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This function derives the base address of the CQE from the CQE size,
and calculates the real CQE context segment in it from the factor
(this is like before). Before this change the code used the factor to
calculate the base address of the CQE as well.
The factor indicates in which segment of the cqe stride the cqe information
is located. For 32-byte strides, the segment is 0, and for 64 byte strides,
the segment is 1 (bytes 32..63). Using the factor was ok as long as we had
only 32 and 64 byte strides. However, with larger strides, the factor is zero,
and so cannot be used to calculate the base of the CQE.
The helper uses the same method of CQE buffer pulling made by all other
components that reads the CQE buffer (mlx4_ib driver and libmlx4).
Signed-off-by: Ido Shamay <idos@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Enable mlx4 interrupt handler to work with EQE stride feature,
The feature may be enabled when cache line is bigger than 64B.
The EQE size will then be the cache line size, and the context
segment resides in [0-31] offset.
Signed-off-by: Ido Shamay <idos@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This feature is intended for archs having cache line larger then 64B.
Since our CQE/EQEs are generally 64B in those systems, HW will write
twice to the same cache line consecutively, causing pipe locks due to
he hazard prevention mechanism. For elements in a cyclic buffer, writes
are consecutive, so entries smaller than a cache line should be
avoided, especially if they are written at a high rate.
Reduce consecutive writes to same cache line in CQs/EQs, by allowing the
driver to increase the distance between entries so that each will reside
in a different cache line. Until the introduction of this feature, there
were two types of CQE/EQE:
1. 32B stride and context in the [0-31] segment
2. 64B stride and context in the [32-63] segment
This feature introduces two additional types:
3. 128B stride and context in the [0-31] segment (128B cache line)
4. 256B stride and context in the [0-31] segment (256B cache line)
Modify the mlx4_core driver to query the device for the CQE/EQE cache
line stride capability and to enable that capability when the host
cache line size is larger than 64 bytes (supported cache lines are
128B and 256B).
The mlx4 IB driver and libmlx4 need not be aware of this change. The PF
context behaviour is changed to require this change in VF drivers
running on such archs.
Signed-off-by: Ido Shamay <idos@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: fix sparse warnings in SNMP_UPD_PO_STATS(_BH)
ptr used to be a non __percpu pointer (result of a this_cpu_ptr
assignment, 7d720c3e4f0c4 ("percpu: add __percpu sparse annotations to
net")). Since d25398df59b56 ("net: avoid reloads in SNMP_UPD_PO_STATS"),
that's no longer the case, SNMP_UPD_PO_STATS uses this_cpu_add and ptr
is now __percpu.
Silence sparse warnings by preserving the original type and
annotation, and remove the out-of-date comment.
warning: incorrect type in initializer (different address spaces)
expected unsigned long long *ptr
got unsigned long long [noderef] <asn:3>*<noident>
warning: incorrect type in initializer (different address spaces)
expected void const [noderef] <asn:3>*__vpp_verify
got unsigned long long *<noident>
warning: incorrect type in initializer (different address spaces)
expected void const [noderef] <asn:3>*__vpp_verify
got unsigned long long *<noident>
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 19 Sep 2014 21:15:40 +0000 (17:15 -0400)]
Merge branch 'fou-next'
Tom Herbert says:
====================
net: foo-over-udp (fou)
This patch series implements foo-over-udp. The idea is that we can
encapsulate different IP protocols in UDP packets. The rationale for
this is that networking devices such as NICs and switches are usually
implemented with UDP (and TCP) specific mechanims for processing. For
instance, many switches and routers will implement a 5-tuple hash
for UDP packets to perform Equal Cost Multipath Routing (ECMP) or
RSS (on NICs). Many NICs also only provide rudimentary checksum
offload (basic TCP and UDP packet), with foo-over-udp we may be
able to leverage these NICs to offload checksums of tunneled packets
(using checksum unnecessary conversion and eventually remote checksum
offload)
An example encapsulation of IPIP over FOU is diagrammed below. As
illustrated, the packet overhead for FOU is the 8 byte UDP header.
Conceptually, FOU should be able to encapsulate any IP protocol.
The FOU header (UDP hdr.) is essentially an inserted header between the
IP header and transport, so in the case of TCP or UDP encapsulation
the pseudo header would be based on the outer IP header and its length
field must not include the UDP header.
* Receive
In this patch set the RX path for FOU is implemented in a new fou
module. To enable FOU for a particular protocol, a UDP-FOU socket is
opened to the port to receive FOU packets. The socket is mapped to the
IP protocol for the packets. The XFRM mechanism used to receive
encapsulated packets (udp_encap_rcv) for the port. Upon reception, the
UDP is removed and packet is reinjected in the stack for the
corresponding protocol associated with the socket (return -protocol
from udp_encap_rcv function).
GRO is provided with the appropriate fou_gro_receive and
fou_gro_complete. These routines need to know the encapsulation
protocol so we save that in udp_offloads structure with the port
and pass it in the napi_gro_cb structure.
* TX
This patch series implements FOU transmit encapsulation for IPIP, GRE, and
SIT. This done by some common infrastructure in ip_tunnel including an
ip_tunnel_encap to perform FOU encapsulation and common configuration
to enable FOU on IP tunnels. FOU is configured on existing tunnels and
does not create any new interfaces. The transmit and receive paths are
independent, so use of FOU may be assymetric between tunnel endpoints.
* Configuration
The fou module using netlink to configure FOU receive ports. The ip
command can be augmented with a fou subcommand to support this. e.g. to
configure FOU for IPIP on port 5555:
ip fou add port 5555 ipproto 4
GRE, IPIP, and SIT have been modified with netlink commands to
configure use of FOU on transmit. The "ip link" command will be
augmented with an encap subcommand (for supporting various forms of
secondary encapsulation). For instance, to configure an ipip tunnel
with FOU on port 5555:
ip link add name tun1 type ipip \
remote 192.168.1.1 local 192.168.1.2 ttl 225 \
encap fou encap-sport auto encap-dport 5555
* Notes
- This patch set does not implement GSO for FOU. The UDP encapsulation
code assumes TEB, so that will need to be reimplemented.
- When a packet is received through FOU, the UDP header is not
actually removed for the skbuf, pointers to transport header
and length in the IP header are updated (like in ESP/UDP RX). A
side effect is the IP header will now appear to have an incorrect
checksum by an external observer (e.g. tcpdump), it will be off
by sizeof UDP header. If necessary we could adjust the checksum
to compensate.
- Performance results are below. My expectation is that FOU should
entail little overhead (clearly there is some work to do :-) ).
Optimizing UDP socket lookup for encapsulation ports should help
significantly.
- I really don't expect/want devices to have special support for any
of this. Generic checksum offload mechanisms (NETIF_HW_CSUM
and use of CHECKSUM_COMPLETE) should be sufficient. RSS and flow
steering is provided by commonly implemented UDP hashing. GRO/GSO
seem fairly comparable with LRO/TSO already.
* Performance
Ran netperf TCP_RR and TCP_STREAM tests across various configurations.
This was performed on bnx2x and I disabled TSO/GSO on sender to get
fair comparison for FOU versus non-FOU. CPU utilization is reported
for receive in TCP_STREAM.
GRE
IPv4, FOU, UDP checksum enabled
TCP_STREAM
24.85% CPU utilization
9310.6 Mbps
TCP_RR
94.2% CPU utilization
155/249/460 90/95/99% latencies
1.17018e+06 tps
IPv4, FOU, UDP checksum disabled
TCP_STREAM
31.04% CPU utilization
9302.22 Mbps
TCP_RR
94.13% CPU utilization
154/239/419 90/95/99% latencies
1.17555e+06 tps
IPv4, no FOU
TCP_STREAM
23.13% CPU utilization
9354.58 Mbps
TCP_RR
90.24% CPU utilization
156/228/360 90/95/99% latencies
1.18169e+06 tps
IPIP
FOU, UDP checksum enabled
TCP_STREAM
24.13% CPU utilization
9328 Mbps
TCP_RR
94.23
149/237/429 90/95/99% latencies
1.19553e+06 tps
FOU, UDP checksum disabled
TCP_STREAM
29.13% CPU utilization
9370.25 Mbps
TCP_RR
94.13% CPU utilization
149/232/398 90/95/99% latencies
1.19225e+06 tps
No FOU
TCP_STREAM
10.43% CPU utilization
5302.03 Mbps
TCP_RR
51.53% CPU utilization
215/324/475 90/95/99% latencies
864998 tps
SIT
FOU, UDP checksum enabled
TCP_STREAM
30.38% CPU utilization
9176.76 Mbps
TCP_RR
96.9% CPU utilization
170/281/581 90/95/99% latencies
1.03372e+06 tps
FOU, UDP checksum disabled
TCP_STREAM
39.6% CPU utilization
9176.57 Mbps
TCP_RR
97.14% CPU utilization
167/272/548 90/95/99% latencies
1.03203e+06 tps
No FOU
TCP_STREAM
11.2% CPU utilization
4636.05 Mbps
TCP_RR
59.51% CPU utilization
232/346/489 90/95/99% latencies
813199 tps
v2:
- Removed encap IP tunnel ioctls, configuration is done by netlink
only.
- Don't export fou_create and fou_destroy, they are currently
intended to be called within fou module only.
- Filled on tunnel netlink structures and functions for new values.
v3:
- Fixed change logs for some of the patches.
- Remove inline from fou_gro_receive and fou_gro_complete, let
compiler decide on these.
v4:
- Don't need to cast void in fou_from_sock
- Removed incorrest htons for port in fou_destroy
- Some minor cleanup for readability
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Wed, 17 Sep 2014 19:26:01 +0000 (12:26 -0700)]
gre: Setup and TX path for gre/UDP foo-over-udp encapsulation
Added netlink attrs to configure FOU encapsulation for GRE, netlink
handling of these flags, and properly adjust MTU for encapsulation.
ip_tunnel_encap is called from ip_tunnel_xmit to actually perform FOU
encapsulation.
Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Wed, 17 Sep 2014 19:26:00 +0000 (12:26 -0700)]
ipip: Setup and TX path for ipip/UDP foo-over-udp encapsulation
Add netlink handling for IP tunnel encapsulation parameters and
and adjustment of MTU for encapsulation. ip_tunnel_encap is called
from ip_tunnel_xmit to actually perform FOU encapsulation.
Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Wed, 17 Sep 2014 19:25:59 +0000 (12:25 -0700)]
sit: Setup and TX path for sit/UDP foo-over-udp encapsulation
Added netlink handling of IP tunnel encapulation paramters, properly
adjust MTU for encapsulation. Added ip_tunnel_encap call to
ipip6_tunnel_xmit to actually perform FOU encapsulation.
Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Wed, 17 Sep 2014 19:25:58 +0000 (12:25 -0700)]
net: Changes to ip_tunnel to support foo-over-udp encapsulation
This patch changes IP tunnel to support (secondary) encapsulation,
Foo-over-UDP. Changes include:
1) Adding tun_hlen as the tunnel header length, encap_hlen as the
encapsulation header length, and hlen becomes the grand total
of these.
2) Added common netlink define to support FOU encapsulation.
3) Routines to perform FOU encapsulation.
Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Wed, 17 Sep 2014 19:25:57 +0000 (12:25 -0700)]
fou: Add GRO support
Implement fou_gro_receive and fou_gro_complete, and populate these
in the correponsing udp_offloads for the socket. Added ipproto to
udp_offloads and pass this from UDP to the fou GRO routine in proto
field of napi_gro_cb structure.
Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Herbert [Wed, 17 Sep 2014 19:25:56 +0000 (12:25 -0700)]
fou: Support for foo-over-udp RX path
This patch provides a receive path for foo-over-udp. This allows
direct encapsulation of IP protocols over UDP. The bound destination
port is used to map to an IP protocol, and the XFRM framework
(udp_encap_rcv) is used to receive encapsulated packets. Upon
reception, the encapsulation header is logically removed (pointer
to transport header is advanced) and the packet is reinjected into
the receive path with the IP protocol indicated by the mapping.
Netlink is used to configure FOU ports. The configuration information
includes the port number to bind to and the IP protocol corresponding
to that port.
This should support GRE/UDP
(http://tools.ietf.org/html/draft-yong-tsvwg-gre-in-udp-encap-02),
as will as the other IP tunneling protocols (IPIP, SIT).
Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
When using new Multi-function modes it's possible that due to incompatible
configuration management FW will fallback into an existing mode.
Notice that at the moment this fallback is exactly the same as the already
existing switch-independent multi-function mode, but we still use existing
infrastructure to hold this information [in case some small differences will
arise in the future].
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for a new multi-function mode based on the Unified Fabric Port
system specifications.
Support includes configuration of:
1. Outer vlan tags.
2. Bandwidth settings.
3. Virtual link enable/disable.
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Rearrange macros to query for storage-only modes in different MF environment.
Improves the readibility and maintainability of the code. E.g.:
- if (IS_MF_STORAGE_SD(bp) || IS_MF_FCOE_AFEX(bp))
+ if (IS_MF_STORAGE_ONLY(bp))
In addition, this removes the need for bnx2x_is_valid_ether_addr().
Signed-off-by: Dmitry Kravkov <Dmitry.Kravkov@qlogic.com> Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This patch sets the change to of_phy_connect() that you have seen before,
this time with the full context of why it is useful and applicable here.
Due to some design decision, the internal PHY on Broadcom BCM7xxx chips
is not entirely self contained and does not report its internal revision
through MII_PHYSID2, that is left to external PHY designs.
This forces us to get the PHY revision from the GENET and SF2 switch drivers
because those two peripherals integrate such a PHY and do contain the PHY
revision in their registers.
The approach taken here is hopefully easy to extend to similar needs for
other chips/ as well.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
net: phy: bcm7xxx: utilize PHY revision in config_init
Now that the GENET and SF2 drivers have been updated to communicate us
what is the revision of the BCM7xxx integrated PHY, utilize that
information in the config_init() callback to call into the appropriate
workaround function based on our revision.
While at it, we also print the revision and patch level to help debug
new chips.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: dsa: bcm_sf2: communicate integrated PHY revision to PHY driver
The integrated BCM7xxx PHY contains no useful revision information
in its MII_PHYSID2 bits 3:0, that information is instead contained in
the SWITCH_REG_PHY_REVISION register.
Read this register, store its value, and return it by implementing the
dsa_switch::get_phy_flags() callback accordingly. The register layout is
already matching what the BCM7xxx PHY driver is expecting to find.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: dsa: allow switch drivers to specify phy_device::dev_flags
Some switch drivers (e.g: bcm_sf2) may have to communicate specific
workarounds or flags towards the PHY device driver. Allow switches
driver to be delegated that task by introducing a get_phy_flags()
callback which will do just that.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: bcmgenet: communicate integrated PHY revision to PHY driver
The integrated BCM7xxx PHY contains no useful revision information in
its MII_PHYSID2 bits 3:0, that information is instead contained in the
GENET hardware block.
We already read the GENET 32-bit revision register, so store the
integrated PHY revision in the driver private structure, and then
communicate this revision value to the PHY driver by overriding the
phy_flags value.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Now that we have removed the need for the PHY_BRCM_100MBPS_WAR flag, we
can remove it from the GENET driver and the broadcom shared header file.
The PHY driver checks the PHY supported bitmask instead.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: phy: bcm7xxx: do not use PHY_BRCM_100MBPS_WAR
There is no need for the PHY driver to check PHY_BRCM_100MBPS_WAR since
that is redundant with checking the PHY device supported features. Get
rid of that workaround flag.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: phy: broadcom: add helper for PHY revision and patch level
The Broadcom BCM7xxx internal PHYs do not contain any useful revision
information in the low 4-bits of their MII_PHYSID2 (MII register 3)
which could allow us to properly identify them.
As a result, we need the actual hardware block integrating these PHYs:
GENET or the SF2 switch to tell us what revision they are built with. To
assist with that, add two helper macros for fetching the the PHY
revision and patch level from the struct phy_device::dev_flags.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Commit f9a8f83b04e0 ("net: phy: remove flags argument from phy_{attach,
connect, connect_direct}") removed the flags argument to the PHY library
calls to: phy_{attach,connect,connect_direct}.
Most Device Tree aware drivers call of_phy_connect() with the flag
argument set to 0, but some of them might want to set a different value
there in order for the PHY driver to key a specific behavior based on
the phy_device::phy_flags value.
Allow such drivers to set custom phy_flags as part of the
of_phy_connect() call since of_phy_connect() does start the PHY state
machine, it will call into the PHY driver config_init() callback which
is usually where a specific phy_flags value is important.
Fixes: f9a8f83b04e0 ("net: phy: remove flags argument from phy_{attach, connect, connect_direct}") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Fri, 19 Sep 2014 19:57:46 +0000 (15:57 -0400)]
Merge branch 'udp-tunnel-common'
Andy Zhou says:
====================
Refactor vxlan and l2tp to use new common UDP tunnel APIs
This patch series add a few more UDP tunnel APIs and refactoring current
UDP tunnel based protocols, vxlan and l2tp to make use of the new APIs.
The added APIs are setup_udp_tunnel_sock(), udp_tunnel_xmit_skb() and
udp_tunnel_sock_release(). Those implementation logics already exist in
current vxlan and l2tp implementation. Move them to common APIs to reduce
code duplications.
Also split udp_tunnel.c into net/ipv4/udp_tunnel.c and
net/ipv6/ip6_udp_tunnel.c to maintain proper IP protocol separation.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Change from v2 to v3
- add error check in fec_enet_set_coalesce
- fix a run time warning to get clock rate in interrupt
- fix commit message use TKT number
Change from v1 to v2
- fix indention
- use errata number instead of TKT
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
net: fec: Workaround for imx6sx enet tx hang when enable three queues
When enable three queues on imx6sx enet, and then do tx performance
test with iperf tool, after some time running, tx hang.
Found that:
If uDMA is running, software set TDAR may cause tx hang.
If uDMA is in idle, software set TDAR don't cause tx hang.
There is a TDAR race condition for mutliQ when the software sets TDAR
and the UDMA clears TDAR simultaneously or in a small window (2-4 cycles).
This will cause the udma_tx and udma_tx_arbiter state machines to hang.
The issue exist at i.MX6SX enet IP.
So, the Workaround is checking TDAR status four time, if TDAR cleared by
hardware and then write TDAR, otherwise don't set TDAR.
The patch is only one Workaround for the issue ERR007885.
Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: fec: add interrupt coalescence feature support
i.MX6 SX support interrupt coalescence feature
By default, init the interrupt coalescing frame count threshold and
timer threshold.
Supply the ethtool interfaces as below for user tuning to improve
enet performance:
rx_max_coalesced_frames
rx_coalesce_usecs
tx_max_coalesced_frames
tx_coalesce_usecs
Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Jacob Keller [Wed, 3 Sep 2014 08:13:01 +0000 (08:13 +0000)]
ixgbe: remove IXGBE_FLAG_MSI(X)_CAPABLE flags
They were not used, and we don't need them, so we shouldn't bother with
keeping values in the flags field that could be misleading.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Wed, 3 Sep 2014 08:13:00 +0000 (08:13 +0000)]
ixgbe: add warnings for other disabled features without MSI-X support
When we can't get MSI-X vectors, we disable a few features which require
MSI-X vectors. Print warnings just like we do when disabling DCB.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Wed, 3 Sep 2014 08:12:59 +0000 (08:12 +0000)]
ixgbe: use e_dev_warn instead of netif_printk
Again, we should not be directly using netif_printk, as we have our own
error print routines that we generate. In addition, instead of using an
early return we can just use the else block of this one line if
statement.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Wed, 3 Sep 2014 08:12:58 +0000 (08:12 +0000)]
ixgbe: use e_dev_warn instead of e_err for displaying warning
In this case, disabling DCB is not an error. We can still function, but
we just have to let the user know. In addition, since we call this
during probe before allocating our netdevice structure, we should use
e_dev_warn instead of e_warn.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Our calculated v_budget doesn't matter except if we allocate MSI-X
vectors. We shouldn't need to calculate this outside of the function, so
don't. Instead, only calculate it once we attempt to acquire MSI-X
vectors. This helps collocate all of the MSI-X vector code together.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Wed, 3 Sep 2014 08:12:56 +0000 (08:12 +0000)]
ixgbe: move msix_entries allocation into ixgbe_acquire_msix_vectors
We already have to kfree this value if we fail, and this is only part of
MSI-X mode, so we should simply allocate the value where we need it.
This is cleaner, and makes it a lot more obvious why we are freeing it
inside of ixgbe_acquire_msix_vectors.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Wed, 3 Sep 2014 08:12:55 +0000 (08:12 +0000)]
ixgbe: return integer from ixgbe_acquire_msix_vectors
Similar to how ixgbevf handles acquiring MSI-X vectors, we can return an
error code instead of relying on the flag being set. This makes it more
clear that we have failed to setup MSI-X mode, and also will make it
easier to consolidate MSI-X related code all into the single function.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Wed, 3 Sep 2014 08:12:54 +0000 (08:12 +0000)]
ixgbe: use e_dev_warn instead of netif_printk
The netif_printk relies on our netdevice structure to be registered
already. We may call ixgbe_acquire_msix_vectors prior to registering our
netdevice, so we should not use the netdevice specific printk.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Mark Rustad [Sat, 9 Aug 2014 07:02:09 +0000 (07:02 +0000)]
ixgbe: Do not schedule an uninitialized workqueue entry
If a hardware Tx timestamp is requested, an uninitialized
workqueue entry may be scheduled, especially on an 82598 adapter.
Add a check for a PTP clock to avoid that. Also only apply the
unlikely to the first term of the conditional. That will make the
rest of the checks be in the cold path.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Acked-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
ixgbe: remove useless bd_number from adapter struct
Because bd_number is not useful anymore, so remove it from adapter struct, or
if keep it, we have to fix the boards driven counter bug in ixgbe_remove() and
ixgbe_probe() only for trivial debug purpose -- other output is enough.
Signed-off-by: Ethan Zhao <ethan.zhao@oracle.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
John Fastabend [Tue, 16 Sep 2014 07:33:42 +0000 (00:33 -0700)]
net: sched: cls_cgroup need tcf_exts_init in all cases
This ensures the tcf_exts_init() is called for all cases.
Fixes: 952313bd62589cae216a57 ("net: sched: cls_cgroup use RCU") Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Cong Wang <cwang@twopensource.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 16 Sep 2014 20:21:48 +0000 (16:21 -0400)]
Merge branch 'net_next_ovs' of git://git.kernel.org/pub/scm/linux/kernel/git/pshelar/openvswitch
Pravin B Shelar says:
====================
Open vSwitch
Following patches adds recirculation and hash action to OVS.
First patch removes pointer to stack object. Next three patches
does code restructuring which is required for last patch.
Recirculation implementation is changed, according to comments from
David Miller, to avoid using recursive calls in OVS. It is using
queue to record recirc action and deferred recirc is executed at
the end of current actions execution.
v1-v2:
Changed subsystem name in subject to openvswitch
v2-v3:
Added patch to remove pkt_key pointer from skb->cb.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Tue, 16 Sep 2014 06:31:42 +0000 (23:31 -0700)]
net: sched: cls_fw: add missing tcf_exts_init call in fw_change()
When allocating a new structure we also need to call tcf_exts_init
to initialize exts.
A follow up patch might be in order to remove some of this code
and do tcf_exts_assign(). With this we could remove the
tcf_exts_init/tcf_exts_change pattern for some of the classifiers.
As part of the future tcf_actions RCU series this will need to be
done. For now fix the call here.
Fixes e35a8ee5993ba81fd6c0 ("net: sched: fw use RCU") Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Cong Wang <cwang@twopensource.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net/sched/cls_cgroup.c:130 cls_cgroup_change() warn: possible memory leak of 'new'
net/sched/cls_cgroup.c:135 cls_cgroup_change() warn: possible memory leak of 'new'
net/sched/cls_cgroup.c:139 cls_cgroup_change() warn: possible memory leak of 'new'
Fixes: c7953ef23042b7c4fc2be5ecdd216aac ("net: sched: cls_cgroup use RCU") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Cong Wang <cwang@twopensource.com> Signed-off-by: David S. Miller <davem@davemloft.net>
John Fastabend [Tue, 16 Sep 2014 06:30:26 +0000 (23:30 -0700)]
net: sched: fix unsued cpu variable
kbuild test robot reported an unused variable cpu in cls_u32.c
after the patch below. This happens when PERF and MARK config
variables are disabled
Fix this is to use separate variables for perf and mark
and define the cpu variable inside the ifdef logic.
Fixes: 459d5f626da7 ("net: sched: make cls_u32 per cpu")' Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Acked-by: Cong Wang <cwang@twopensource.com> Signed-off-by: David S. Miller <davem@davemloft.net>
'p->h' could be NULL while 'cp->h' is always update to date.
Fixes: commit 331b72922c5f58d48fd ("net: sched: RCU cls_tcindex") Cc: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-By: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
WANG Cong [Mon, 15 Sep 2014 23:43:42 +0000 (16:43 -0700)]
net_sched: fix memory leak in cls_tcindex
Fixes: commit 331b72922c5f58d48fd ("net: sched: RCU cls_tcindex") Cc: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-By: John Fastabend <john.r.fastabend@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Andy Zhou [Tue, 16 Sep 2014 02:37:25 +0000 (19:37 -0700)]
openvswitch: Add recirc and hash action.
Recirc action allows a packet to reenter openvswitch processing.
currently openvswitch lookup flow for packet received and execute
set of actions on that packet, with help of recirc action we can
process/modify the packet and recirculate it back in openvswitch
for another pass.
OVS hash action calculates 5-tupple hash and set hash in flow-key
hash. This can be used along with recirculation for distributing
packets among different ports for bond devices.
For example:
OVS bonding can use following actions:
Match on: bond flow; Action: hash, recirc(id)
Match on: recirc-id == id and hash lower bits == a;
Action: output port_bond_a
Signed-off-by: Andy Zhou <azhou@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
The current sample() function implementation is more complicated
than necessary in handling single user space action optimization
and skb reference counting. There is no functional changes.
Signed-off-by: Andy Zhou <azhou@nicira.com> Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
openvswitch: Use tun_key only for egress tunnel path.
Currently tun_key is used for passing tunnel information
on ingress and egress path, this cause confusion. Following
patch removes its use on ingress path make it egress only parameter.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Andy Zhou <azhou@nicira.com>
OVS flow extract is called on packet receive or packet
execute code path. Following patch defines separate API
for extracting flow-key in packet execute code path.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Andy Zhou <azhou@nicira.com>
OVS keeps pointer to packet key in skb->cb, but the packet key is
store on stack. This could make code bit tricky. So it is better to
get rid of the pointer.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
dsa_of_probe() still used cd->mii_bus instead of cd->host_dev when
building with CONFIG_OF=y. Fix this by making the replacement here as
well.
Fixes: b4d2394d01b ("dsa: Replace mii_bus with a generic host device") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
WANG Cong [Mon, 15 Sep 2014 21:06:49 +0000 (14:06 -0700)]
net_sched: use tcindex_filter_result_init()
Fixes: commit 331b72922c5f58d48fd ("net: sched: RCU cls_tcindex") Cc: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes: commit 331b72922c5f58d48fd ("net: sched: RCU cls_tcindex") Cc: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
WANG Cong [Mon, 15 Sep 2014 21:06:46 +0000 (14:06 -0700)]
net_sched: fix an allocation bug in tcindex_set_parms()
Fixes: commit 331b72922c5f58d48fd ("net: sched: RCU cls_tcindex") Cc: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
WANG Cong [Mon, 15 Sep 2014 21:21:50 +0000 (14:21 -0700)]
net_sched: fix suspicious RCU usage in cls_bpf_classify()
Fixes: commit 1f947bf151e90ec0baad2948 ("net: sched: rcu'ify cls_bpf") Cc: John Fastabend <john.fastabend@gmail.com> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Acked-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 15 Sep 2014 21:24:29 +0000 (17:24 -0400)]
Merge branch 'dsa-next'
Alexander Duyck says:
====================
DSA Cleanups
This patch series does two things, first it cleans up the tag_protocol and
protocol ops being configured seperately. Second it addresses the desire
to split DSA away from relying on a MII bus.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Mon, 15 Sep 2014 17:00:27 +0000 (13:00 -0400)]
dsa: Replace mii_bus with a generic host device
This change makes it so that instead of passing and storing a mii_bus we
instead pass and store a host_dev. From there we can test to determine the
exact type of device, and can verify it is the correct device for our switch.
So for example it would be possible to pass a device pointer from a pci_dev
and instead of checking for a PHY ID we could check for a vendor and/or device
ID.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Mon, 15 Sep 2014 17:00:19 +0000 (13:00 -0400)]
dsa: Split ops up, and avoid assigning tag_protocol and receive separately
This change addresses several issues.
First, it was possible to set tag_protocol without setting the ops pointer.
To correct that I have reordered things so that rcv is now populated before
we set tag_protocol.
Second, it didn't make much sense to keep setting the device ops each time a
new slave was registered. So by moving the receive portion out into root
switch initialization that issue should be addressed.
Third, I wanted to avoid sending tags if the rcv pointer was not registered
so I changed the tag check to verify if the rcv function pointer is set on
the root tree. If it is then we start sending DSA tagged frames.
Finally I split the device ops pointer in the structures into two spots. I
placed the rcv function pointer in the root switch since this makes it
easiest to access from there, and I placed the xmit function pointer in the
slave for the same reason.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 15 Sep 2014 21:19:55 +0000 (17:19 -0400)]
Merge branch 'bonding-cleanups'
Nikolay Aleksandrov says:
====================
bonding: style, comment and assertion changes
This is a small and simple patch-set that doesn't introduce (hopefully) any
functional changes, but only stylistic and semantic ones.
Patch 01 simply uses the already provided __rlb_next_rx_slave function inside
rlb_next_rx_slave(), thus removing the duplication of code.
Patch 02 changes all comments that I could find to netdev style, removes
some outdated ones and fixes a few more small cosmetic issues (new line
after declaration, braces around if; else and such)
Patch 03 removes one extra ASSERT_RTNL() because we already have it in the
parent function and consolidates two other ASSERT_RTNL()s to the function
that is exported and supposed to be called with RTNL anyway.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
bonding: consolidate ASSERT_RTNL()s and remove the unnecessary
Consolidate the calls to ASSERT_RTNL() before bond_select_active_slave()
inside bond_select_active_slave() itself and remove the ASSERT_RTNL()
from bond_hw_addr_swap() as it's not exported and its only caller -
bond_change_active_slave() already has an ASSERT_RTNL().
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
First adjust a couple of locking comments that were left inaccurate,
then adjust comments to use the netdev styling and remove extra new
lines where necessary and add a couple of new lines between declarations
and code. These are all trivial styling changes, no functional change.
Also removed a couple of outdated or obvious comments.
This patch is by no means a complete fix of all netdev style violations
but it gets the bonding closer.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
bonding: consolidate the two rlb_next_rx_slave functions into one
__rlb_next_rx_slave() is a copy of rlb_next_rx_slave() with the
difference that it uses rcu primitives to walk the slave list. We don't
need the two functions and can make rlb_next_rx_slave() a wrapper for
callers which hold RTNL.
So add a comment and ASSERT_RTNL() to make sure what is intended.
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 15 Sep 2014 18:41:12 +0000 (14:41 -0400)]
Merge branch 'tcpflags'
Eric Dumazet says:
====================
tcp: no longer keep around headers in input path
Looking at tcp_try_coalesce() I was wondering why I did :
if (tcp_hdr(from)->fin)
return false;
The answer would be to allow the aggregation, if we simply OR the FIN and PSH
flags eventually present in @from to @to packet. (Note a change is also
needed in skb_try_coalesce() to avoid calling skb_put() with 0 len)
Then, looking at tcp_recvmsg(), I realized we access tcp_hdr(skb)->syn
(and maybe tcp_hdr(skb)->fin) for every packet we process from socket
receive queue.
We have to understand TCP flags are cold in cpu caches most of the time
(assuming TCP timestamps, and that application calls recvmsg() a long
time after incoming packet was processed), and bringing a whole
cache line only to access one bit is not very nice.
It would make sense to use in TCP input path TCP_SKB_CB(skb)->tcp_flags
as we do in output path.
This saves one cache line miss, and TCP tcp_collapse() can avoid dealing
with the headers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 15 Sep 2014 11:19:53 +0000 (04:19 -0700)]
tcp: do not copy headers in tcp_collapse()
tcp_collapse() wants to shrink skb so that the overhead is minimal.
Now we store tcp flags into TCP_SKB_CB(skb)->tcp_flags, we no longer
need to keep around full headers.
Whole available space is dedicated to the payload.
Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 15 Sep 2014 11:19:51 +0000 (04:19 -0700)]
tcp: use TCP_SKB_CB(skb)->tcp_flags in input path
Input path of TCP do not currently uses TCP_SKB_CB(skb)->tcp_flags,
which is only used in output path.
tcp_recvmsg(), looks at tcp_hdr(skb)->syn for every skb found in receive queue,
and its unfortunate because this bit is located in a cache line right before
the payload.
We can simplify TCP by copying tcp flags into TCP_SKB_CB(skb)->tcp_flags.
This patch does so, and avoids the cache line miss in tcp_recvmsg()
Following patches will
- allow a segment with FIN being coalesced in tcp_try_coalesce()
- simplify tcp_collapse() by not copying the headers.
Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: bpf: correctly handle errors in sk_attach_filter()
Commit "net: bpf: make eBPF interpreter images read-only" has changed bpf_prog
to be vmalloc()ed but never handled some of the errors paths of the old code.
On error within sk_attach_filter (which userspace can easily trigger), we'd
kfree() the vmalloc()ed memory, and leak the internal bpf_work_struct.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Acked-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Alexander Duyck [Sat, 13 Sep 2014 06:12:46 +0000 (23:12 -0700)]
netdevice: Support DSA tagging when DSA is built as a module
This change corrects an error seen when DSA tagging is built as a module.
Without this change it is not possible to get XDSA tagged frames as the
test for tagging is stripped by the #ifdef check.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Bo Shen [Fri, 12 Sep 2014 23:57:49 +0000 (01:57 +0200)]
net/macb: Add hardware revision information during probe
Print the IP revision when probing.
Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sat, 13 Sep 2014 21:32:29 +0000 (17:32 -0400)]
Merge branch 'fec-next'
Frank Li says:
====================
net: fec: imx6sx multiqueue support
These patches enable i.MX6SX multi queue support.
i.MX6SX support 3 queue and AVB feature.
Change from v3 to v4
- use "unsigned int" instead of "unsigned"
Change from v2 to v3
- fixed alignment requirement for ARM and NO-ARM platform
Change from v1 to v2.
- Change num_tx_queue to unsigned int
- Avoid block non-dt platform
- remove call netif_set_real_num_rx_queues
- seperate multi queue patch two part, one is tx and rx handle, with fixed queue 0
then other one is initilized multiqueue
- use two difference alignment for tx and rx path
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Frank Li [Fri, 12 Sep 2014 21:00:56 +0000 (05:00 +0800)]
ARM: Documentation: Update fec dts binding doc
This patch update fec devicetree binding doc that add Optional
properties "fsl,num-tx-queues" and "fsl,num-rx-queues".
Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net: fec: change FEC alignment according to i.mx6 sx requirement
i.MX6 SX change FEC alignment requirement.
i.MX6 SX change internal bus from AHB to AXI.
It require RX buffer must be 64 bytes alignment.
And remove TX buffer alignment requirement.
Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Add compatible string "fsl,imx6sx-fec" for i.MX6SX.
Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Frank Li [Fri, 12 Sep 2014 21:00:52 +0000 (05:00 +0800)]
net: fec: add enet-avb IP support
i.MX6SX Enet-AVB support 3 tx queues, 3 rx queues.
For tx queues: ring 0 -> best effort
ring 1 -> Class A
ring 2 -> Class B
For rx queues:
ring 0 -> best effort
ring 1 -> receive VLAN packet with classification match
ring 2 -> receive VLAN packet with classification match
Add enet-avb IP multiqueue support for the driver.
Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
net:fec: Disable enet-avb MAC instead of reset MAC
For i.MX6SX enet use AXI bus, reset MAC will make system bus dead
if ENET-AXI bus has pending access (AHB bus should not have such issue).
So, disable enet with AVB MAC instead of reset MAC itself.
Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Frank Li [Fri, 12 Sep 2014 21:00:50 +0000 (05:00 +0800)]
net: fec: init multi queue date structure
initilized all queues according to queue number get from DT file.
Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: Duan Fugang <B38611@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
By default, the tx/rx queue number is 1, user can config the queue number
at DTS file like this:
fsl,num-tx-queues=<3>;
fsl,num-rx-queues=<3>
Since i.MX6SX enet-AVB IP support multi queues, so use multi queues
interface to allocate and set up an Ethernet device.
Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: Frank Li <Frank.Li@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
projects / linux-beck.git / log