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Commit Graph

3245 Commits

Author SHA1 Message Date
Arnd Bergmann
79febbc19b net: i40e: shut up uninitialized variable warnings
intel/i40e/i40e_txrx.c: In function 'i40e_xmit_frame_ring':
intel/i40e/i40e_txrx.c:2367:20: error: 'oiph' may be used uninitialized in this function [-Werror=maybe-uninitialized]
intel/i40e/i40e_txrx.c:2317:16: note: 'oiph' was declared here
intel/i40e/i40e_txrx.c:2367:17: error: 'oudph' may be used uninitialized in this function [-Werror=maybe-uninitialized]
intel/i40e/i40e_txrx.c:2316:17: note: 'oudph' was declared here

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-25 15:49:36 -08:00
Eric Dumazet
5cae7615b6 i40e: fix build warnings
Fixes following build warnings :

drivers/net/ethernet/intel/i40e/i40e_main.c:7057:13: warning:
'i40e_sync_udp_filters_subtask' defined but not used [-Wunused-function]
drivers/net/ethernet/intel/i40e/i40e_main.c:8524:13: warning:
'i40e_add_vxlan_port' defined but not used [-Wunused-function]
drivers/net/ethernet/intel/i40e/i40e_main.c:8569:13: warning:
'i40e_del_vxlan_port' defined but not used [-Wunused-function]
drivers/net/ethernet/intel/i40e/i40e_main.c:8604:13: warning:
'i40e_add_geneve_port' defined but not used [-Wunused-function]
drivers/net/ethernet/intel/i40e/i40e_main.c:8651:13: warning:
'i40e_del_geneve_port' defined but not used [-Wunused-function]

Fixes: 6a89902405 ("i40e: geneve tunnel offload support")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-25 15:39:24 -08:00
Linus Torvalds
7d1fc01afc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  floppy: make local variable non-static
  exynos: fixes an incorrect header guard
  dt-bindings: fixes some incorrect header guards
  cpufreq-dt: correct dead link in documentation
  cpufreq: ARM big LITTLE: correct dead link in documentation
  treewide: Fix typos in printk
  Documentation: filesystem: Fix typo in fs/eventfd.c
  fs/super.c: use && instead of & for warn_on condition
  Documentation: fix sysfs-ptp
  lib: scatterlist: fix Kconfig description
2016-01-14 17:04:19 -08:00
David S. Miller
7d39721466 Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:

====================
10GbE Intel Wired LAN Driver Updates 2016-01-08

This series contains updates to ixgbe only.

Vasu provides three fixes for ixgbe, first assigns a minimum credit to
a traffic class to resolve a Tx hang for CEE mode configuration.  Second
fix changes the driver to use netdev->fcoe_ddp_xid instead of our local
IXGBE_FCOE_DDP_MAX, since it is correctly set for our different devices
and avoids a DDP skip error on X550.  Lastly fix the PFC configuration
to include X550 devices.

Emil provides a fix for reporting the speed in ethtool by using the
stored value in out adapter structure.  This is due to external drivers
may end up with unknown speed when calling ethtool_get_settings().

Mark fixes the handling of any outer UDP checksum, by passing the
skb up with CHECKSUM_NONE when an outer UDP checksum is set.  This
will cause the stack to check the checksum, also do not increment an
error counter because we do not really know if there is an actual error.
Ixgbe ATR was not handling IPv6 extended headers, so ATR is not being
performed on such packets.  Fix this by skipping extended headers
when they are present.

Usha fixes an issue with X550 and getting FDMI HBA attributes when
FCoE support is enabled.

Neerav fixes an issue for X550 when FCoE and SR-IOV are enabled, which
the hardware generates MDD events.  Resolve this by setting the expected
values in the transmit context descriptors for FCoE/FIP frames and
adding a flush after writing the RDLEN register.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-01-08 13:31:06 -05:00
Mark Rustad
e19dcdeb35 ixgbe: Make ATR recognize IPv6 extended headers
Right now ATR is not handling IPv6 extended headers, so ATR is not
being performed on such packets. Fix that by skipping extended
headers when they are present. This also fixes a problem where
the ATR code was not checking that the inner protocol was actually
TCP before setting up the signature rules. Since the protocol check
is intimately involved with the extended header processing as well,
this all gets fixed together.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 04:18:43 -08:00
Neerav Parikh
8b75451be1 ixgbe: Fix MDD events generated when FCoE+SRIOV are enabled
When FCoE is enabled with SR-IOV on the X550 NIC the hardware
generates MDD events.

This patch fixes these by setting the expected values in the
Tx context descriptors for FCoE/FIP frames and adding a flush
after writing the RDLEN register.

Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 04:15:00 -08:00
Usha Ketineni
b262a9a772 ixgbe: Fix to get FDMI HBA attributes information with X550
Check whether the FCOE support is enabled for the devices to get the
 FDMI HBA attributes information instead of checking each device id.
Also, add Model string information for X550.

Signed-off-by: Usha Ketineni <usha.k.ketineni@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 04:11:21 -08:00
Mark Rustad
d469251bfd ixgbe: Correct handling of any outer UDP checksum setting
If an outer UDP checksum is set, pass the skb up with CHECKSUM_NONE
so that the stack will check the checksum. Do not increment an
error counter, because we don't know that there is an actual error.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 04:06:49 -08:00
Emil Tantilov
0e4d422f5f ixgbe: do not call check_link for ethtool in ixgbe_get_settings()
In ixgbe_get_settings() the link status and speed of the interface
are determined based on a read from the LINKS register via the call
to mac.ops.check.link(). This can cause issues where external drivers
may end up with unknown speed when calling ethtool_get_setings().

Instead of calling the mac.ops.check_link() we can report the speed
from the adapter structure which is populated by the driver.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 03:57:49 -08:00
Vasu Dev
cb78cf12d6 ixgbe: fix broken PFC with X550
PFC is configuration is skipped for X550 devices due to a incorrect
device id check, fixing that to include X550 PFC configuration.

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 03:54:08 -08:00
Vasu Dev
f10166aba2 ixgbe: use correct FCoE DDP max check
Use fcoe_ddp_xid from netdev as this is correctly set for different
device IDs to avoid DDP skip error on X550 as "xid=0x20b out-of-range"

Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 03:47:51 -08:00
Vasu Dev
3efcb86e2d ixgbe: Fill at least min credits to a TC credit refills
Currently credit_refill and credit_max could be zero for a TC and that
is causing Tx hang for CEE mode configuration, so to fix that have at
min credit assigned to a TC and that is as what IEEE mode already does.

Change-ID: If652c133093a21e530f4e9eab09097976f57fb12
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 03:25:14 -08:00
Jesse Brandeburg
56028154ca i40e: remove forever unused ID
Somehow an ID that has never been productized is in the
code.  There are no plans to use it, so just get
rid of it.

Change-ID: I59117d48ea9ee0360b0fe33833ac8092f8a24b4c
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 01:33:42 -08:00
Anjali Singhai Jain
857942fd1a i40e: Fix Rx hash reported to the stack by our driver
If the driver calls skb_set_hash even with a zero hash, that
indicates to the stack that the hash calculation is offloaded
in hardware. So the Stack doesn't do a SW hash which is required
for load balancing if the user decides to turn of rx-hashing
on our device.

This patch fixes the path so that we do not call skb_set_hash
if the feature is disabled.

Change-ID: Ic4debfa4ff91b5a72e447348a75768ed7a2d3e1b
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 01:30:11 -08:00
Sowmini Varadhan
b499ffb0a2 i40e: Look up MAC address in Open Firmware or IDPROM
This is the i40e equivalent of commit c762dff24c ("ixgbe: Look up MAC
address in Open Firmware or IDPROM").

As with that fix, attempt to look up the MAC address in Open Firmware
on systems that support it, and use IDPROM on SPARC if no OF address
is found.

In the case of the i40e there is an assumption that the default mac
address has already been set up as the primary mac filter on probe,
so if this filter is obtained from the Open Firmware or IDPROM, an
explicit write is needed via i40e_aq_mac_address_write() and
i40e_aq_add_macvlan() invocation.

The I40E_FLAG_PF_MAC flag in the platform-private i40e_pf structure
tracks whether a platform-specific mac address was found, in which
case calls to i40e_aq_mac_address_write() and i40e_aq_add_macvlan()
will be triggered.

Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 01:12:47 -08:00
Mitch Williams
efd8e39acc i40e: allow zero MAC address for VFs
Allow the user to specify a zero MAC address for VFs. This removes the
existing MAC address and allows the VF to use a random address. Libvirt
does this normally when removing a VF from a VM.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 00:59:26 -08:00
Mitch Williams
2d166c3040 i40e: change log messages and error returns
When VFs are being reset, there is a brief window of time when they
cannot be configured because they don't have a VSI to configure. If
a script is quick, it can fall through that window. To avoid
defenestration, log a useful error message and return -EAGAIN.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-01-08 00:49:59 -08:00
Alexander Duyck
ab3a3b7b0c ixgbe: Fix bugs in ixgbe_clear_vf_vlans()
When I had rewritten the code for ixgbe_clear_vf_vlans() it looks like I
had transitioned back and forth between using word as an offset and using
word as a register offset.  As a result I honestly don't see how the code
was working before other than the fact that resetting the VLANs on the VF
like didn't do much to clear them.

Another issue found is that the mask was using a divide instead of a
modulus.  As a result the mask bit was incorrectly being set to either bit
0 or 1 based on the value of the VF being tested.  As a result the wrong
VFs were having their VLANs cleared if they were enabled.

I have updated the code so that word represents the offset in the array.
This way we can use the modulus and xor operations and they will make sense
instead of being performed on a 4 byte aligned value.

I replaced the statement "(word % 2) ^ 1" with "~word % 2" in order to
reduce the line length as the line exceeded 80 characters with the register
name inserted.  The two should be equivalent so the change should be safe.

Reported-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-29 19:16:08 -08:00
Mark Rustad
3ca2b2506e ixgbe: Correct X550EM_x revision check
The X550EM_x revision check needs to check a value, not just a bit.
Use a mask and check the value. Also remove the redundant check
inside the ixgbe_enter_lplu_t_x550em, because it can only be called
when both the mac type and revision check pass.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-29 19:16:07 -08:00
Emil Tantilov
e9ee3238f8 ixgbe: fix RSS limit for X550
X550 allows for up to 64 RSS queues, but the driver can have max
of 63 (-1 MSIX vector for link).

On systems with >= 64 CPUs the driver will set the redirection table
for all 64 queues which will result in packets being dropped.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-29 19:16:07 -08:00
Mark Rustad
fb8ad4a592 ixgbe: Clean up redundancy in hw_enc_features
Clean up minor redundancy in the setting of hw_enc_features that
makes it appears that X550 uniquely has more encapsulation features
than other devices. The driver only supports one more feature, so
make it look that way. No longer set NETIF_F_SG since that is set
by the register_netdev call. Thanks to Alex Duyck for noticing this
slight confusion.

Reported-by: Alexander Duyck <aduyck@mirantis.com>
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-29 19:16:06 -08:00
Veola Nazareth
695b816d1a ixgbe: report correct media type for KR, KX and KX4 interfaces
Ethtool reports backplane type interfaces as 1000/10000baseT link modes.
This has been corrected to report the media as KR, KX or KX4 based on the
backplane interface present.

Signed-off-by: Veola Nazareth <veola.nazareth@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-29 19:16:06 -08:00
Emil Tantilov
af56b4d865 ixgbe: add support for QSFP PHY types in ixgbe_get_settings()
Add missing QSFP PHY types to allow for more accurate reporting of
port settings.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-29 19:16:06 -08:00
Emil Tantilov
9ad3d6f7eb ixgbevf: minor cleanups for ixgbevf_set_itr()
adapter->rx_itr_setting is not a mask so check it with == instead of &
do not default to 12K interrupts in ixgbevf_set_itr()

There should be no functional effect from these changes.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-29 19:16:05 -08:00
William Dauchy
d0f71afffa ixgbevf: Fix handling of NAPI budget when multiple queues are enabled per vector
This is the same patch as for ixgbe but applied differently according to
busy polling.  See commit 5d6002b7b8 ("ixgbe: Fix handling of NAPI
budget when multiple queues are enabled per vector")

Signed-off-by: William Dauchy <william@gandi.net>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-29 18:07:37 -08:00
Bruce Allan
0d722ec8bf fm10k: IS_ENABLED() is not appropriate for boolean kconfig option
Tri-states need 'if IS_ENABLED()', booleans should use 'ifdef'.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 05:23:17 -08:00
Bruce Allan
f632fed30f fm10k: cleanup mailbox code comments etc
Cleanup a number of issues with function header comments, lower-case
acronyms (i.e. FIFO, TLV), duplicate comments and a stubbed-out header
comment for fm10k_sm_mbx_init.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 05:19:57 -08:00
Bruce Allan
f355bb5179 fm10k: use true/false for boolean get_host_state
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 05:16:45 -08:00
Bruce Allan
e6f244d484 fm10k: remove unused struct element
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 05:13:07 -08:00
Bruce Allan
f329ad732b fm10k: constify fm10k_mac_ops, fm10k_iov_ops and fm10k_info structures
These structures never change so declare them as const.

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 05:10:01 -08:00
Bruce Allan
4e458cfb22 fm10k: address operator not needed when declaring function pointers
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 05:06:29 -08:00
Jacob Keller
6186ddf06d fm10k: use ether_addr_equal instead of memcmp
When comparing MAC addresses, use ether_addr_equal instead of memcmp to
ETH_ALEN length. Found and replaced using the following sed:

 sed -e 's/memcmp\x28\(.*\), ETH_ALEN\x29/!ether_addr_equal\x28\1\x29/'

Reported-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 05:01:58 -08:00
Alexander Duyck
09f8a82b6a fm10k: Cleanup exception handling for changing queues
This patch is meant to cleanup the exception handling for the paths where
we reset the interrupts and then reconfigure them.  In all of these paths
we had very different levels of exception handling.  I have updated the
driver so that all of the paths should result in a similar state if we
fail.

Specifically the driver will now unload the mailbox interrupt, free the
queue vectors and MSI-X, and then detach the interface.

In addition for any of the PCIe related resets I have added a check with
the hw_ready function to just make sure the registers are in a readable
state prior to reopening the interface.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Reviewed-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 04:50:11 -08:00
Jacob Keller
8c2a029c7e fm10k: correctly pack TLV structures and explain reasoning
The TLV format for little endian structures is actually 4 byte aligned
copy. To this end, we need to add an additional __aligned(4) marker
along with __packed to ensure that these structures are actually 4 byte
aligned and packed correctly. Use of just __packed will not work as this
will result in 1byte alignment which is incorrect. Add a comment
explaining the reasoning behind why these structures need the special
treatment.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 04:32:14 -08:00
Bruce Allan
07146e2ea8 fm10k: don't initialize fm10k_workqueue at global level
Cleans up checkpatch GLOBAL_INITIALIZERS error

Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-22 04:20:19 -08:00
David S. Miller
b3e0d3d7ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/geneve.c

Here we had an overlapping change, where in 'net' the extraneous stats
bump was being removed whilst in 'net-next' the final argument to
udp_tunnel6_xmit_skb() was being changed.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-17 22:08:28 -05:00
Singhai, Anjali
cd866606c9 i40e: Call geneve_get_rx_port to get the existing Geneve ports
This patch adds a call to geneve_get_rx_port in i40e so that when it
comes up it can learn about the existing geneve tunnels.

Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16 10:58:56 -05:00
Singhai, Anjali
c110c311b1 i40e: Kernel dependency update for i40e to support geneve offload
Update the Kconfig file with dependency for supporting GENEVE tunnel
offloads.

Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16 10:58:56 -05:00
Singhai, Anjali
6a89902405 i40e: geneve tunnel offload support
This patch adds driver hooks to implement ndo_ops to add/del
udp port in the HW to identify GENEVE tunnels.

Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16 10:58:56 -05:00
Tom Herbert
a188222b6e net: Rename NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK
The name NETIF_F_ALL_CSUM is a misnomer. This does not correspond to the
set of features for offloading all checksums. This is a mask of the
checksum offload related features bits. It is incorrect to set both
NETIF_F_HW_CSUM and NETIF_F_IP_CSUM or NETIF_F_IPV6 at the same time for
features of a device.

This patch:
  - Changes instances of NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK (where
    NETIF_F_ALL_CSUM is being used as a mask).
  - Changes bonding, sfc/efx, ipvlan, macvlan, vlan, and team drivers to
    use NEITF_F_HW_CSUM in features list instead of NETIF_F_ALL_CSUM.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15 16:50:08 -05:00
Tom Herbert
53692b1de4 sctp: Rename NETIF_F_SCTP_CSUM to NETIF_F_SCTP_CRC
The SCTP checksum is really a CRC and is very different from the
standards 1's complement checksum that serves as the checksum
for IP protocols. This offload interface is also very different.
Rename NETIF_F_SCTP_CSUM to NETIF_F_SCTP_CRC to highlight these
differences. The term CSUM should be reserved in the stack to refer
to the standard 1's complement IP checksum.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15 16:49:58 -05:00
Benjamin Poirier
0a8047ac68 e1000e: Fix msi-x interrupt automask
Since the introduction of 82574 support in e1000e, the driver has worked
on the assumption that msi-x interrupt generation is automatically
disabled after each irq. As it turns out, this is not the case.
Currently, rx interrupts can fire multiple times before and during napi
processing. This can be a problem for users because frames that arrive
in a certain window (after adapter->clean_rx() but before
napi_complete_done() has cleared NAPI_STATE_SCHED) generate an interrupt
which does not lead to napi_schedule(). These frames sit in the rx queue
until another frame arrives (a tcp retransmit for example).

While the EIAC and CTRL_EXT registers are properly configured for irq
automask, the modification of IAM in e1000_configure_msix() is what
prevents automask from working as intended.

This patch removes that erroneous write and fixes interrupt rearming for
tx interrupts. It also clears IAME from CTRL_EXT. This is not strictly
necessary for operation of the driver but it is to avoid disruption from
potential programs that access the registers directly, like `ethregs -c`.

Reported-by: Frank Steiner <steiner-reg@bio.ifi.lmu.de>
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-14 20:19:47 -08:00
Benjamin Poirier
a61cfe4ffa e1000e: Do not write lsc to ics in msi-x mode
In msi-x mode, there is no handler for the lsc interrupt so there is no
point in writing that to ics now that we always assume Other interrupts
are caused by lsc.

Reviewed-by: Jasna Hodzic <jhodzic@ucdavis.edu>
Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-14 20:09:18 -08:00
Benjamin Poirier
16ecba59bc e1000e: Do not read ICR in Other interrupt
Removes the ICR read in the other interrupt handler, uses EIAC to
autoclear the Other bit from ICR and IMS. This allows us to avoid
interference with Rx and Tx interrupts in the Other interrupt handler.

The information read from ICR is not needed. IMS is configured such that
the only interrupt cause that can trigger the Other interrupt is Link
Status Change.

Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-14 19:36:13 -08:00
Benjamin Poirier
4d432f67ff e1000e: Remove unreachable code
msi-x interrupts are not shared so there's no need to check if the
interrupt was really from this adapter.

Signed-off-by: Benjamin Poirier <bpoirier@suse.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-14 19:30:21 -08:00
Joe Schultz
d602de0593 igb: Explicitly label self-test result indices
Previously, the ethtool self-test gstrings/data arrays were accessed via
hardcoded indices, which made the code difficult to follow. This patch
replaces the hardcoded values with enum-based labels.

Signed-off-by: Joe Schultz <jschultz@xes-inc.com>
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-14 16:07:21 -08:00
Joe Schultz
3627f8f1d1 igb: Improve cable length function for I210, etc.
Previously, the PHY-specific code to get the cable length for the
I210 internal and related PHYs was reporting the cable length of a
single pair and reporting it as the min, max, and total cable length.
Update it so that all four pairs are checked so the true min, max,
and average cable lengths are reported.

Signed-off-by: Joe Schultz <jschultz@xes-inc.com>
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-14 16:04:05 -08:00
Aaron Sierra
06b0dd6492 igb: Don't add PHY address to PCDL address
There is no reason to add the PHY address into the PCDL register address.

Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-14 15:58:59 -08:00
Aaron Sierra
2a3cdead8b igb: Remove GS40G specific defines/functions
The I210 internal PHY can be accessed just as well with the access
functions shared by 82580, I350, and I354 devices. A side effect of
relying on the common functions, is that I210 cable length support
is folded back into the common case which effectively reverts the
following commit:

    commit 59f301046b
    Author: Carolyn Wyborny <carolyn.wyborny@intel.com>
    Date:   Wed Oct 10 04:42:59 2012 +0000

    igb: Update get cable length function for i210/i211

Cc: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-14 10:20:06 -08:00
Alexander Duyck
386164d9b3 e1000e: Switch e1000e_up to void, drop code checking for error result
The function e1000e_up always returns 0.  As such we can convert it to a
void and just ignore the results.  This allows us to drop some code in a
couple spots as we no longer need to worry about non-zero return values.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-12-14 09:47:05 -08:00