Commit Graph

2491 Commits

Author SHA1 Message Date
Mitch Williams
3ba9bcb4b6 i40e: add locking around VF reset
During VF deallocation, we need to lock out the VF reset code. However,
we cannot depend on simply masking the interrupt, as this does not lock
out the service task, which can still call the reset routine. Instead,
leave the interrupt enabled, but add locking around the VF disable and
reset routines.

For the disable code, we wait to get the lock, as the reset code will
take a finite amount of time to run. For the reset code, we just return
if we fail to get the lock. Since we know that the VFs are being
disabled, we don't need to handle the reset.
This fixes a panic when disabling SR-IOV.

Change-ID: Iea0a6cdef35c331f48c6d5b2f8e6f0e86322e7d8
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 20:11:44 -08:00
Mitch Williams
07574897d3 i40e: Use even more ARQ descriptors
When enabling 64 VFs and loading the VF driver in the host kernel, we
can easily overrun the PF's admin receive queue. Double the size of this
queue, and increase the work limit to allow the PF to handle more
requests in a single pass through the service task.

Change-ID: I0efbbdc61954bffad422a2f33c4b948a59370bf5
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 19:53:32 -08:00
Mitch Williams
1750a22fa9 i40e: delay after VF reset
Delay a minimum of 10ms after VF reset, to allow the hardware's internal
FIFOs to flush.

Change-ID: I8a02ddb28c9f0d7303a1eb21d0b2443e5b4c1cda
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 19:30:29 -08:00
John W Linville
83840e4bd5 i40e: avoid use of uninitialized v_budget in i40e_init_msix
This I40E_FCOE block increments v_budget before it has been initialized,
then v_budget gets overwritten a few lines later.  This patch just
reorders the code hunks in what I believe was the intended sequence.

Coverity: CID 1260099

Signed-off-by: John W Linville <linville@tuxdriver.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 19:01:06 -08:00
Rickard Strandqvist
cf86da489d i40e: i40e_fcoe.c: Remove unused function
Remove the function i40e_rx_is_fip() that is not used anywhere.

This was partially found by using a static code analysis program
called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-08 18:45:17 -08:00
Don Skidmore
5b7f000ff9 ixgbe: add Tx anti spoofing support
This patch enables the ethertype Anti-Spoofing feature for affected
devices. It is configured such that LLDP packets sent by a VF will
be dropped.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:58:46 -08:00
Emil Tantilov
9ac5c5ccdb ixgbevf: combine all of the tasks into a single service task
This change combines the reset and watchdog tasklets into a single task.

The advantage of this is that we can avoid multiple schedules of the reset
task when we have a reset event needed due to either the mailbox going down
or transmit packets being present on a link down.

CC: Alexander Duyck <alexander.h.duyck@redhat.com>
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>
2015-02-05 19:58:45 -08:00
Emil Tantilov
e66c92ad58 ixgbevf: rewrite watchdog task to function similar to igbvf
This patch cleans up the logic dealing with link down/up by breaking down the
link detection and up/down events into separate functions - similar to how these
events are handled in other drivers.

CC: Alexander Duyck <alexander.h.duyck@redhat.com>
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>
2015-02-05 19:58:45 -08:00
Emil Tantilov
e08400b707 ixgbevf: Add code to check for Tx hang
This patch adds code to allow for Tx hang checking.  The idea is to provide
more robust debug info in the event of a transmit unit hang. Similar to the
logic in ixgbe.

CC: Alexander Duyck <alexander.h.duyck@redhat.com>
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>
2015-02-05 19:58:44 -08:00
Emil Tantilov
d9bdb57f9c ixgbevf: Fix ordering of shutdown to correctly disable Rx and Tx
This patch updates the ordering of the shutdown path so that we attempt to
shutdown the rings more gracefully. Basically the big changes are that we
shutdown the main Rx filter in the case of Rx and we set the carrier_off
state in the case of Tx so that packets stop being delivered from outside
the driver.  Then we shut down interrupts and NAPI.  Finally we stop the
rings from performing DMA and clean them.  This is a bit more graceful than
the previous path.

CC: Alexander Duyck <alexander.h.duyck@redhat.com>
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>
2015-02-05 19:58:44 -08:00
Emil Tantilov
39f35a370b ixgbevf: set vlan_features in a single write instead of several ORs
Clean up the setting of vlan_features by enabling all features at once.

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>
2015-02-05 19:58:42 -08:00
Don Skidmore
3f207800a9 ixgbe: add VXLAN offload support for X550 devices
Add support VXLAN receive checksum offload in X550 hardware.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:49 -08:00
Don Skidmore
4dedadcbae ixgbe: Cleanup probe to remove redundant attempt to ID PHY
We always identify the PHY in our reset_hw path anyway so there is
no need to do it in get_invariants().  The reason I even noticed this
is that for new hardware (X550em) we don't assign some methods until
later in probe and calling phy.ops.read_reg could lead to a panic.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:48 -08:00
Don Skidmore
f9c9e488ce ixgbe: cleanup redundant default method set_rxpba
My original patch 6a14ee0cfb "ixgbe: Add X550 support function pointers"
accidental set a default value for this structure member twice.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:48 -08:00
Emil Tantilov
42ce2c8ef6 ixgbe: fix setting port VLAN
This patch fixes couple of issues introduced by
commit 2b509c0cd2 ("ixgbe: cleanup ixgbe_ndo_set_vf_vlan")

- fix setting of the VLAN inside ixgbe_enable_port_vlan()
- disable the "hide VLAN" bit in PFQDE when port VLAN is disabled

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:47 -08:00
Emil Tantilov
9295edb472 ixgbevf: add RSS support for X550
X550 provides RSS registers for configuring RSS per VF.

This patch introduces ixgbevf_setup_vfmrqc() which uses the VFRETA,
VFRSSRK and VFMRQC registers to configure RSS on X550.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:47 -08:00
Emil Tantilov
2dc571aa61 ixgbevf: enable multiple queue support
This patch enables multiple queues and RSS support for the VF.
Maximum of 2 queues are supported due to available vectors.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:46 -08:00
Emil Tantilov
dec2e395fd ixgbe: allow multiple queues in SRIOV mode
ixgbe_set_sriov_queues() has the logic to allow multiple queues, this patch
just removes the limitation.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:57:46 -08:00
Don Skidmore
7ddbde3f74 ixgbe: cleanup sparse errors in new ixgbe_x550.c file
This patch cleans up prototypes that should have been defined
as static.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:41:51 -08:00
Matthew Vick
f4a80f1ef7 fm10k: Resolve compile warnings with W=1
Fix two cases where variables are being set but not used.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Krishneil Singh<Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:41:51 -08:00
Matthew Vick
33a44c2873 fm10k: Validate VLAN ID in fm10k_update_xc_addr_pf
Currently, fm10k_update_xc_addr_pf has an issue where it does not
properly drop the upper-most four bits of the VLAN ID due to type
promotion. Resolve the issue not by masking off the bits, but by
throwing an error if the VLAN ID is out-of-bounds.

Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-05 19:41:50 -08:00
David S. Miller
6e03f896b5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/vxlan.c
	drivers/vhost/net.c
	include/linux/if_vlan.h
	net/core/dev.c

The net/core/dev.c conflict was the overlap of one commit marking an
existing function static whilst another was adding a new function.

In the include/linux/if_vlan.h case, the type used for a local
variable was changed in 'net', whereas the function got rewritten
to fix a stacked vlan bug in 'net-next'.

In drivers/vhost/net.c, Al Viro's iov_iter conversions in 'net-next'
overlapped with an endainness fix for VHOST 1.0 in 'net'.

In drivers/net/vxlan.c, vxlan_find_vni() added a 'flags' parameter
in 'net-next' whereas in 'net' there was a bug fix to pass in the
correct network namespace pointer in calls to this function.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-05 14:33:28 -08:00
Roopa Prabhu
add511b382 bridge: add flags argument to ndo_bridge_setlink and ndo_bridge_dellink
bridge flags are needed inside ndo_bridge_setlink/dellink handlers to
avoid another call to parse IFLA_AF_SPEC inside these handlers

This is used later in this series

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-01 23:16:33 -08:00
Toshiaki Makita
10e4fb333c ixgbevf: Fix checksum error when using stacked vlan
When a skb has multiple vlans and it is CHECKSUM_PARTIAL,
ixgbevf_tx_csum() fails to get the network protocol and checksum related
descriptor fields are not configured correctly because skb->protocol
doesn't show the L3 protocol in this case.

Use first->protocol instead of skb->protocol to get the proper network
protocol.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-30 18:03:47 -08:00
Toshiaki Makita
0213668f06 ixgbe: Fix checksum error when using stacked vlan
When a skb has multiple vlans and it is CHECKSUM_PARTIAL,
ixgbe_tx_csum() fails to get the network protocol and checksum related
descriptor fields are not configured correctly because skb->protocol
doesn't show the L3 protocol in this case.

Use vlan_get_protocol() to get the proper network protocol.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-30 18:03:47 -08:00
Toshiaki Makita
72b1405964 igbvf: Fix checksum error when using stacked vlan
When a skb has multiple vlans and it is CHECKSUM_PARTIAL,
igbvf_tx_csum() fails to get the network protocol and checksum related
descriptor fields are not configured correctly because skb->protocol
doesn't show the L3 protocol in this case.

Use vlan_get_protocol() to get the proper network protocol.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-30 18:03:47 -08:00
Florian Westphal
472f31f572 net: e1000e: support txtd update delay via xmit_more
Don't update Tx tail descriptor if queue hasn't been stopped
and we know at least one more skb will be sent right away.

Signed-off-by: Florian Westphal <fw@strlen.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:24 -08:00
Florian Westphal
8a4d0b93c1 net: e1000: support txtd update delay via xmit_more
Don't update Tx tail descriptor if we queue hasn't been stopped and
we know at least one more skb will be sent right away.

Signed-off-by: Florian Westphal <fw@strlen.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:23 -08:00
Alexander Graf
6ddbc4cf1f igb: Indicate failure on vf reset for empty mac address
Commit 5ac6f91d changed the igb driver to expose a zero (empty) mac
address to the VF on reset rather than a random one.

However, that behavioral change also requires igbvf driver changes
which can be hard especially when we want to talk to proprietary
guest OSs.

Looking at the code previous to the commit in Linux that made igbvf
work with empty mac addresses (8d56b6d), we can see that on reset
failure the driver will try to generate a new mac address with both
the old and the new code.

Furthermore, ixgbe does send reset failure when it detects an empty
mac address (35055928c).

So I think it's safe to make igb behave the same. With this patch I
can successfully run a Windows 8.1 guest with an empty mac address
and an assigned igbvf device that has no mac address set by the host.

If anyone is aware of a guest driver that chokes on NACK returns of
VF RESET commands, please speak up.

Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:23 -08:00
Matthew Vick
b4a9d6f173 fm10k: Increase the timeout for the data path reset
Based on feedback from the hardware team, 100us is too short of a time
to wait for the data path reset to complete and the recommendation is to
increase this timeout to 150us.

Signed-off-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:21 -08:00
Joe Stringer
b66b6d9f6d fm10k: Check tunnel header length in encap offload
fm10k supports up to 184 bytes of inner+outer headers. Add an initial
check to fail encap offload if these are too large.

Signed-off-by: Joe Stringer <joestringer@nicira.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:21 -08:00
Or Gerlitz
e2929e453a net/fm10k: Avoid double setting of NETIF_F_SG for the HW encapsulation feature mask
The networking core does it for the driver during registration time.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Acked-by: Matthew Vick <matthew.vick@intel.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:20 -08:00
Richard Cochran
720db4ffd0 igb: enable auxiliary PHC functions for the i210
The i210 device offers a number of special PTP Hardware Clock features on
the Software Defined Pins (SDPs). This patch adds support for two of the
possible functions, namely time stamping external events, and periodic
output signals.

The assignment of PHC functions to the four SDP can be freely chosen by
the user.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:19 -08:00
Richard Cochran
00c65578b4 igb: enable internal PPS for the i210
The i210 device can produce an interrupt on the full second. This
patch allows using this interrupt to generate an internal PPS event
for adjusting the kernel system time.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:19 -08:00
Richard Cochran
8298c1ecd5 igb: serialize access to the time sync interrupt registers
The time sync related interrupt registers may be manipulated from
different contexts. This patch protects the registers from being
asynchronously changed by the reset function.

Also, the patch removes a misleading comment. The reset function
is disabling a bunch of functions, not enabling them.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:18 -08:00
Richard Cochran
61d7f75f45 igb: refactor time sync interrupt handling
The code that handles the time sync interrupt is repeated in three
different places. This patch refactors the identical code blocks into
a single helper function.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:18 -08:00
Alexander Duyck
ba5b8dcdb8 fm10k: Clean-up page reuse code
This patch cleans up the page reuse code getting it into a state where all
the workarounds needed are in place as well as cleaning up a few minor
oversights such as using __free_pages instead of put_page to drop a locally
allocated page.

It also cleans up how we clear the descriptor status bits.  Previously they
were zeroed as a part of clearing the hdr_addr.  However the hdr_addr is a
64 bit field and 64 bit writes can be a bit more expensive on on 32 bit
systems.  Since we are no longer using the header split feature the upper
32 bits of the address no longer need to be cleared.  As a result we can
just clear the status bits and leave the length and VLAN fields as-is which
should provide more information in debugging.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Tested-by: Krishneil Singh <Krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:17 -08:00
Alexander Duyck
95dd44b4f3 igb: Clean-up page reuse code
This patch cleans up the page reuse code getting it into a state where all
the workarounds needed are in place as well as cleaning up a few minor
oversights such as using __free_pages instead of put_page to drop a locally
allocated page.

It also cleans up how we clear the descriptor status bits.  Previously they
were zeroed as a part of clearing the hdr_addr.  However the hdr_addr is a
64 bit field and 64 bit writes can be a bit more expensive on on 32 bit
systems.  Since we are no longer using the header split feature the upper
32 bits of the address no longer need to be cleared.  As a result we can
just clear the status bits and leave the length and VLAN fields as-is which
should provide more information in debugging.

Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:17 -08:00
Mathias Koehrer
6930895df9 e1000e: Fix 82572EI that has no hardware timestamp support
With the Intel 82527EI (driver: e1000e) there is an issue when running
the ptpd2 program, that leads to a kernel oops.  The reason is here that
in e1000_xmit_frame() a work queue will be scheduled that has not been
initialized in this case.  The work queue "tx_hwstamp_work" will only be
initialized if adapter->flags & FLAG_HAS_HW_TIMESTAMP set.  This check
is missing in e1000_xmit_frame().

The following patch adds the missing check.

Signed-off-by: Mathias Koehrer <mathias.koehrer@etas.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:16 -08:00
Asaf Vertz
d5c7d7f642 e1000: fix time comparison
To be future-proof and for better readability the time comparisons are
modified to use time_after_eq() instead of plain, error-prone math.

Signed-off-by: Asaf Vertz <asaf.vertz@tandemg.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-22 18:10:15 -08:00
Sravanthi Tangeda
300c34c13e i40e/i40evf: Bump i40e and i40evf versions
Bump i40e to 1.2.6 and i40evf to 1.2.0 version.

Change-ID: Ice127eee3a5a5d1b8765d83cff8c30f9f3b1bc32
Signed-off-by: Sravanthi Tangeda <sravanthi.tangeda@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 05:21:10 -08:00
Neerav Parikh
63d7e5a413 i40e: Support for NPAR iSCSI partition with DCB
Add parsing and reporting of iSCSI capability for a given device or
function.

Also add support for iSCSI partition type with DCB in NPAR mode.
In this mode it is expected that software would configure both the LAN
and iSCSI traffic classes for the iSCSI partition; whereas all the NIC
type partitions will use LAN TC (TC0) only.
Hence, the patch enables querying of DCB configuration in MFP mode and
configures TCs for iSCSI partition type.

Though NIC type partitions may not have more than 1 TC enabled for them
the port may have multiple TCs enabled and hence I40E_FLAG_DCB_ENABLED
will be set/reset on all the partitions based on number of TCs on the
port. This is required as in DCB environment it is expected that all
traffic will be priority tagged.

Change-ID: I8c6e1cfd46c46d8a39c57d9020d9ff8d42ed8a7d
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 05:21:04 -08:00
Jacob Keller
4fda14ca0f i40e: when Rx timestamps disabled set specific mode
Instead of leaving the Rx timestamps in the same mode as before if we
disable the Rx logic, we can set it into a mode that has the fewest
possible timestamps generated. To do this, select only V1 mode, but do
not enable UDP packet recognition. This should eliminate all (or at
least almost all) Rx timestamps, since V1 packets are always over UDP.

Change-ID: If847288e0030a716e059c4c33ab114f2cf038f05
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 05:20:56 -08:00
Jacob Keller
b535a01319 i40e: use same check for Rx hang as for Rx timestamps
It's possible that the user configured only Tx hardware timestamping,
and thus we might be receiving PTP traffic which we timestamp but which
software never reads. In this case we don't want to check for Rx
timestamp hang, because we already know that software won't be handling
them. Thus, we add the same check against pf->ptp_rx as we have in the
Rx timestamp code path.

Change-ID: I66486c8dba307facbff8eace4e52e2f083789d1b
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 05:20:47 -08:00
Shannon Nelson
672415c5f0 i40e: AQ API updates for new commands
Add lldp control commands, add oem ocsd and ocbb commands.

Change-ID: I89eba2bd02013d0a44e1ce900559c54bb15f4a66
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 05:20:37 -08:00
Jeff Kirsher
e910ca7cfc i40e: AQ API updates
Fix up NVM config read and write data structs.

Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 05:02:52 -08:00
Shannon Nelson
8d5e33ad72 i40e: add more struct size checks
Add struct size checks to many of the indirect structs and a few
command structs that were left out previously.

Change-ID: I7810b9af0f04e3ced670639f8671daf7df9b3f4d
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 04:37:49 -08:00
Neerav Parikh
b686ece59b i40e: Issue "Stop LLDP" command for firmware older than v4.3
Disable firmware LLDP agent for NICs with firmware version lower than
v4.3. Added a message when driver disables the firmware LLDP agent on
such NICs.

Change-ID: Ia8abf89439c70cb50e23db82753d7d282265506b
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 04:37:49 -08:00
Jacob Keller
22b4777da2 i40e: check I40E_FLAG_PTP before handling Tx or Rx timestamps
We should not be doing Tx or Rx timestamps if we do not have PTP
enabled. Add checks to ensure that we don't attempt to handle any PTP
related timestamping code if we have not enabled PTP on that PF.

Change-ID: I4335942ae2d5c5f91abfdbeeea02bcace49e7677
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 03:56:54 -08:00
Jacob Keller
ab437b5a0f i40e: only enable PTP interrupt cause if PTP is enabled
We should not blindly enable the PTP interrupt flags for all PFs. We
should only enable the PTP interrupt in PFs which have enabled
PTP.

Change-ID: I051a17cae4c199a2f3cf7852266e27eda6630525
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 03:56:53 -08:00
Catherine Sullivan
65b206d24e i40e/i40evf: Bump i40e/i40evf versions
Bump i40e to 1.2.5 and i40evf to 1.0.7.

Change-ID: I622556829056e3ed42d3b9d285fc5ffb693b21cc
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 03:56:53 -08:00
Sravanthi Tangeda
d67079e539 i40e: Dump Stats string removed from debugfs help command
Dump Stats string has been removed from functional debugfs
help message. Now it does not show up when we echo command to
debugfs/Fortville queue.

Change-ID: I9333473826b574f1afa6ddb785fd7adfbdcb2884
Signed-off-by: Sravanthi Tangeda <sravanthi.tangeda@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 03:56:52 -08:00
Carolyn Wyborny
b294ac70fc i40e: Add define for interrupt name string len
This patch creates a define for interrupt name string configuration that
is large enough to contain full bus/slot info, rather than just netdev->name.

Change-ID: Iaac0d23dfb8526defeed69d91cea85ed4a50ddb2
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 03:56:52 -08:00
Shannon Nelson
aebfc8169a i40e: don't give up on DCB error after reset
We don't need to give up in the reset/rebuild process if the DCB setup failed,
so handle it here the same as in the probe setup.  Also adjust the log strings
a little to look less scary.

Change-ID: I57308d703047e61d3f1a5e471ea77be232444ca0
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 03:56:51 -08:00
Carolyn Wyborny
e240f674ec i40e: fix proc/int descriptions
This patch fixes a problem where the /proc/interrupts descriptions
from the msix configuration were truncating the needed bus info,
making it hard to distinguish configuration from port to port.
This patch increases the string buffer size in order to allow the
full data to be displayed and sync's the text formatting of the misc
and fdir interrupt names

Change-ID: Ib01d6c61fb3f4ac70fbdf5bcc520b22638ea54b7
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 03:56:51 -08:00
Kevin Scott
83c5fe7723 i40e/i40evf: Increase ASQ timeout
Increase ASQ timeout for some scenarios with multi-function devices

Change-ID: I2d7655b19e6c6f9a7ad04deacb106ca8d53886db
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 03:56:50 -08:00
Shannon Nelson
35155fe6e6 i40e/i40evf: AdminQ updates ww36
Several little tweaks to keep FW, SV, and SW in line together
 - Remove the unused and deprecated
   i40e_aqc_opc_debug_modify_internals
 - Add define for iSCSI capability
 - Fix queue mask size
 - Adjust i40e_aqc_oem_param_change for ease-of-use

Change-ID: I51f250b367912968a7cec61b3a68110d9796e914
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Kamil Kacperski <kamil.kacperski@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-16 03:56:49 -08:00
David S. Miller
3f3558bb51 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
	drivers/net/xen-netfront.c

Minor overlapping changes in xen-netfront.c, mostly to do
with some buffer management changes alongside the split
of stats into TX and RX.

Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-15 00:53:17 -05:00
Vasu Dev
776d4e9f5c i40e: adds FCoE configure option
Adds FCoE config option I40E_FCOE, so that FCoE can be enabled
as needed but otherwise have it disabled by default.

This also eliminate multiple FCoE config checks, instead now just
one config check for CONFIG_I40E_FCOE.

The I40E FCoE was added with 3.17 kernel and therefore this patch
shall be applied to stable 3.17 kernel also.

CC: <stable@vger.kernel.org>
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-14 16:48:39 -05:00
Jiri Pirko
df8a39defa net: rename vlan_tx_* helpers since "tx" is misleading there
The same macros are used for rx as well. So rename it.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-13 17:51:08 -05:00
Shannon Nelson
ba252f1378 i40e: limit sriov to partition 1 of NPAR configurations
Make sure we only allow SR/IOV on the master PF of a port in multifunction
mode.  This should be the case anyway based on the num_vfs configured in
the NVM, but this will help make sure there's no question.  If we're not
in multifunction mode the partition_id will always be 1.

Change-ID: I8b2592366fe6782f15301bde2ebd1d4da240109d
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:48:20 -08:00
Catherine Sullivan
fef59ddfe8 i40e: Don't exit link event early if link speed has changed
Previously we were only checking if the link up state had changed,
and if it hadn't exiting the link event routine early. We should
also check if speed has changed, and if it has, stay and finish
processing the link event.

Change-ID: I9c8e0991b3f0279108a7858898c3c5ce0a9856b8
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:48:20 -08:00
Shannon Nelson
f0d8c73396 i40e: limit WoL and link settings to partition 1
When in multi-function mode, e.g. Dell's NPAR, only partition 1
of each MAC is allowed to set WoL, speed, and flow control.

Change-ID: I87a9debc7479361c55a71f0120294ea319f23588
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:48:19 -08:00
Kamil Krawczyk
18f680c696 i40e: Adding function for reading PBA String
Function will read PBA Block from Shadow RAM and return it in a string format.

Change-ID: I4ee7059f6e21bd0eba38687da15e772e0b4ab36e
Signed-off-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:48:19 -08:00
Shannon Nelson
9fee9db5fb i40e/i40evf: find partition_id in npar mode
When in NPAR mode the driver instance might be controlling the base
partition or one of the other "fake" PFs.  There are some things that
can only be done by the base partition, aka partition_id 1.  This code
does a bit of work to find how many partitions are there per port and
what is the current partition_id.

Change-ID: Iba427f020a1983d02147d86f121b3627e20ee21d
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:48:18 -08:00
Vasu Dev
b2d4d9059e i40e: remove VN2VN related mac filters
These mac address already added by FCoE stack above netdev,
therefore adding them here is redundant.

Change-ID: Ia5b59f426f57efd20f8945f7c6cc5d741fbe06e5
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:47:45 -08:00
Greg Rose
148c2d80d5 i40e: Add warning for NPAR partitions with link speed less than 10Gbps
NPAR enabled partitions should warn the user when detected link speed is
less than 10Gpbs.

Change-ID: I7728bb8ce279bf0f4f755d78d7071074a4eb5f69
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:47:45 -08:00
Mitch A Williams
0758e7cb5f i40evf: kick a stalled admin queue
On some versions of the firmware, the VF admin send queue may become
stalled. In this case, the easiest solution is to just place another
descriptor on the queue; the firmware will then process both requests.

The early init code already accounts for this, but the runtime code does
not. In the watchdog task, check for the stall condition, and if it's
found, send our API version to the PF. When the PF replies, just ignore
the reply.

Change-ID: I380d78185a4f284d649c44d263e648afc9b4d50c
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:47:44 -08:00
Mitch A Williams
7235448c9d i40evf: enable interrupt 0 appropriately
Don't enable vector 0 in the ISR, just schedule the adminq task and let
it enable the vector. This prevents the task from being called
reentrantly. Make sure that the vector is enabled on all exit paths of
the adminq task, including error exits.

Change-ID: I53f3d14f91ed7a9e90291ea41c681122a5eca5b5
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:47:44 -08:00
Mitch A Williams
4870e176aa i40evf: don't fire traffic IRQs when the interface is down
There is always a possibility that MSI-X interrupts can get lost. To
keep this problem from stalling the driver, we fire all of our MSI-X
vectors during the watchdog routine. However, we should not fire the
traffic vectors when the interface is closed. In this case, just fire
vector 0, which is used for admin queue events.

As a result, we do not enable the interrupt cause for vector 0. This
can cause the admin queue handler to be called reentrantly, which
causes a scary "critical section violation" message to be logged,
even though no real damage is done.

Change-ID: Ic43a5184708ab2cb9a23fca7dedd808a46717795
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:47:43 -08:00
Mitch A Williams
37dfdf373c i40evf: remove leftover VLAN filters
If we're using VLANs and communications with the PF fail during
shutdown, we will leak memory because not all of the VLAN filters will
be removed. To eliminate this possibility, go through the list again
right before the module is removed and delete any leftover entries.

Change-ID: Id3b5315c47ca0a61ae123a96ff345d010bc41aed
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:47:42 -08:00
Mitch A Williams
53d0b3ae25 i40evf: refactor shutdown code
If the VF driver is running in the host, the shutdown code is completely
broken. We cannot wait in our down routine for the PF to respond to our
requests, as its admin queue task will never run while we hold the lock.

Instead, we schedule operations, then let the watchdog take care of
shutting things down. If the driver is being removed, then wait in the
remove routine until the watchdog is done before continuing.

Change-ID: I93a58d17389e8d6b58f21e430b56ed7b4590b2c5
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:47:42 -08:00
Mitch A Williams
d4f82fd368 i40evf: Remove some scary log messages
These messages may be triggered during normal init of the driver if the
PF or FW take a long time to respond. There's nothing really wrong, so
don't freak people out logging messages.

If the communication channel really is dead, then we'll retry a few
times and give up. This will log a different more scary message that
should cause consternation. This allows the user to more easily detect a
genuine failure.

Change-ID: I6e2b758d4234a3a09c1015c82c8f2442a697cbdb
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:29:57 -08:00
Mitch A Williams
ff30cb6b59 i40evf: remove redundant code
These functions are redundant and duplicate functionality found in
i40evf_free_all_[tx|rx]_resources.

Change-ID: Ia199908926d7a1a4b8247f75f89b5da24c9b149c
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:28:48 -08:00
Mitch A Williams
6a9ddb36ee i40e: disable IOV before freeing resources
If VF drivers are loaded in the host OS, the call to pci_disable_sriov()
will cause these drivers' remove routines to be called. If the PF driver
has already freed VF resources before this happens, then the VF remove
routine can't properly communicate with the PF driver causing all sorts
of mayhem and error messages and hurt feelings.

To fix this, we move the call to pci_disable_sriov() up to the top of
the function and let it complete before freeing any VF resources.

Change-ID: I397c3997a00f6408e32b7735273911e499600236
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-13 11:28:47 -08:00
David S. Miller
44d84d7272 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-01-06 22:29:20 -05:00
Anjali Singhai
df23075fc8 i40e: Fix bug with TCP over IPv6 over VXLAN
The driver was examining the outer protocol layer to set the inner protocol
layer checksum offload.  In the case of TCP over IPV6 over an IPv4 based
VXLAN the inner checksum offloads would be set to look for IPv4/UDP instead
of IPv6/TCP.  This code fixes that so that the driver will look at the
proper layer for encapsulation offload settings.

Signed-off-by: Anjali Singhai <anjali.singhai@intel.com>
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-06 17:15:03 -08:00
Anjali Singhai
f6385979d6 i40e: Fix Rx checksum error counter
The Rx port checksum error counter was incrementing incorrectly with
UDP encapsulated tunneled traffic.  This patch fixes the problem so that
the port_rx_csum counter will show accurate statistics.

Signed-off-by: Anjali Singhai <anjali.singhai@intel.com>
Signed-off-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-06 17:14:57 -08:00
Jesse Brandeburg
d91649f5b7 i40e: fix un-necessary Tx hangs
When the driver was polling with interrupts disabled the hardware
will occasionally not write back descriptors.  This patch causes
the driver to detect this situation and force an interrupt to
fire which will flush the stuck descriptor.  Does not conflict
with napi because if we are already polling the napi_schedule is
ignored.  Additionally the extra interrupts are rate limited, so
don't cause a burden to the CPU.

Change-ID: Iba4616d2a71288672a5f08e4512e2704b97335e8
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-01-06 16:57:18 -08:00
Richard Cochran
d312da293f ixgbe: convert to CYCLECOUNTER_MASK macro.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 16:47:36 -05:00
Richard Cochran
b57c894040 igb: convert to CYCLECOUNTER_MASK macro.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 16:47:36 -05:00
Richard Cochran
4d045b4c06 e1000e: convert to CYCLECOUNTER_MASK macro.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-02 16:47:35 -05:00
Joe Perches
e3fe44c759 i40e: Fix possible memory leak in i40e_dbg_dump_desc
I didn't notice that return in the code, fix it by
adding a goto out instead to free the memory.

Fixes:

> New smatch warnings:
> drivers/net/ethernet/intel/i40e/i40e_debugfs.c:832 i40e_dbg_dump_desc() warn: possible memory leak of 'ring'

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-31 15:40:12 -08:00
David S. Miller
9aacfb2023 igb_ptp: Include clocksource.h to get CLOCKSOURCE_MASK.
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-31 18:32:40 -05:00
David S. Miller
54da5083b7 e1000e: Include clocksource.h to get CLOCKSOURCE_MASK.
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-31 18:32:25 -05:00
Todd Fujinaka
2184aa3d0f igb: Remove unneeded FIXME
Remove a FIXME comment that was missed in a commit on 1/2007.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Reported-by: nick <xerofoify@gmail.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-31 12:11:06 -08:00
John W. Linville
a3566b5290 e100: fix typo in MDI/MDI-X eeprom check in e100_phy_init
Although it doesn't explicitly say so, commit 60ffa47875 ("e100:
Fix MDIO/MDIO-X") appears to be intended to revert the earlier commit
648951451e ("e100: fixed e100 MDI/MDI-X issues").  However,
careful examination reveals that the attempted revert actually
_inverted_ the test for eeprom_mdix_enabled.  That is bound to program
a few PHYs incorrectly...

https://bugzilla.redhat.com/show_bug.cgi?id=1156417

Signed-off-by: "John W. Linville" <linville@tuxdriver.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-31 11:55:40 -08:00
Richard Cochran
826ef90dc4 net: ixgbe: convert to timecounter adjtime.
This patch changes the driver to use the new and improved method
for adjusting the offset of a timecounter.

Compile tested only.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-30 18:29:27 -05:00
Richard Cochran
5ee698e367 net: igb: convert to timecounter adjtime.
This patch changes the driver to use the new and improved method
for adjusting the offset of a timecounter.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-30 18:29:26 -05:00
Richard Cochran
f4de2b9568 net: e1000e: convert to timecounter adjtime.
This patch changes the driver to use the new and improved method
for adjusting the offset of a timecounter.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-30 18:29:26 -05:00
Richard Cochran
74d23cc704 time: move the timecounter/cyclecounter code into its own file.
The timecounter code has almost nothing to do with the clocksource
code. Let it live in its own file. This will help isolate the
timecounter users from the clocksource users in the source tree.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-30 18:29:25 -05:00
Or Gerlitz
65891feac2 net: Disallow providing non zero VLAN ID for NIC drivers FDB add flow
The current implementations all use dev_uc_add_excl() and such whose API
doesn't support vlans, so we can't make it with NICs HW for now.

Fixes: f6f6424ba7 ('net: make vid as a parameter for ndo_fdb_add/ndo_fdb_del')
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-16 15:41:19 -05:00
Alexander Duyck
124b74c18e fm10k/igb/ixgbe: Use dma_rmb on Rx descriptor reads
This change makes it so that dma_rmb is used when reading the Rx
descriptor.  The advantage of dma_rmb is that it allows for a much
lower cost barrier on x86, powerpc, arm, and arm64 architectures than a
traditional memory barrier when dealing with reads that only have to
synchronize to coherent memory.

In addition I have updated the code so that it just checks to see if any
bits have been set instead of just the DD bit since the DD bit will always
be set as a part of a descriptor write-back so we just need to check for a
non-zero value being present at that memory location rather than just
checking for any specific bit.  This allows the code itself to appear much
cleaner and allows the compiler more room to optimize.

Cc: Matthew Vick <matthew.vick@intel.com>
Cc: Don Skidmore <donald.c.skidmore@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-11 21:15:06 -05:00
Linus Torvalds
70e71ca0af Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:

 1) New offloading infrastructure and example 'rocker' driver for
    offloading of switching and routing to hardware.

    This work was done by a large group of dedicated individuals, not
    limited to: Scott Feldman, Jiri Pirko, Thomas Graf, John Fastabend,
    Jamal Hadi Salim, Andy Gospodarek, Florian Fainelli, Roopa Prabhu

 2) Start making the networking operate on IOV iterators instead of
    modifying iov objects in-situ during transfers.  Thanks to Al Viro
    and Herbert Xu.

 3) A set of new netlink interfaces for the TIPC stack, from Richard
    Alpe.

 4) Remove unnecessary looping during ipv6 routing lookups, from Martin
    KaFai Lau.

 5) Add PAUSE frame generation support to gianfar driver, from Matei
    Pavaluca.

 6) Allow for larger reordering levels in TCP, which are easily
    achievable in the real world right now, from Eric Dumazet.

 7) Add a variable of napi_schedule that doesn't need to disable cpu
    interrupts, from Eric Dumazet.

 8) Use a doubly linked list to optimize neigh_parms_release(), from
    Nicolas Dichtel.

 9) Various enhancements to the kernel BPF verifier, and allow eBPF
    programs to actually be attached to sockets.  From Alexei
    Starovoitov.

10) Support TSO/LSO in sunvnet driver, from David L Stevens.

11) Allow controlling ECN usage via routing metrics, from Florian
    Westphal.

12) Remote checksum offload, from Tom Herbert.

13) Add split-header receive, BQL, and xmit_more support to amd-xgbe
    driver, from Thomas Lendacky.

14) Add MPLS support to openvswitch, from Simon Horman.

15) Support wildcard tunnel endpoints in ipv6 tunnels, from Steffen
    Klassert.

16) Do gro flushes on a per-device basis using a timer, from Eric
    Dumazet.  This tries to resolve the conflicting goals between the
    desired handling of bulk vs.  RPC-like traffic.

17) Allow userspace to ask for the CPU upon what a packet was
    received/steered, via SO_INCOMING_CPU.  From Eric Dumazet.

18) Limit GSO packets to half the current congestion window, from Eric
    Dumazet.

19) Add a generic helper so that all drivers set their RSS keys in a
    consistent way, from Eric Dumazet.

20) Add xmit_more support to enic driver, from Govindarajulu
    Varadarajan.

21) Add VLAN packet scheduler action, from Jiri Pirko.

22) Support configurable RSS hash functions via ethtool, from Eyal
    Perry.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1820 commits)
  Fix race condition between vxlan_sock_add and vxlan_sock_release
  net/macb: fix compilation warning for print_hex_dump() called with skb->mac_header
  net/mlx4: Add support for A0 steering
  net/mlx4: Refactor QUERY_PORT
  net/mlx4_core: Add explicit error message when rule doesn't meet configuration
  net/mlx4: Add A0 hybrid steering
  net/mlx4: Add mlx4_bitmap zone allocator
  net/mlx4: Add a check if there are too many reserved QPs
  net/mlx4: Change QP allocation scheme
  net/mlx4_core: Use tasklet for user-space CQ completion events
  net/mlx4_core: Mask out host side virtualization features for guests
  net/mlx4_en: Set csum level for encapsulated packets
  be2net: Export tunnel offloads only when a VxLAN tunnel is created
  gianfar: Fix dma check map error when DMA_API_DEBUG is enabled
  cxgb4/csiostor: Don't use MASTER_MUST for fw_hello call
  net: fec: only enable mdio interrupt before phy device link up
  net: fec: clear all interrupt events to support i.MX6SX
  net: fec: reset fep link status in suspend function
  net: sock: fix access via invalid file descriptor
  net: introduce helper macro for_each_cmsghdr
  ...
2014-12-11 14:27:06 -08:00
Alexander Duyck
67fd893ee0 ethernet/intel: Use napi_alloc_skb
This change replaces calls to netdev_alloc_skb_ip_align with
napi_alloc_skb.  The advantage of napi_alloc_skb is currently the fact that
the page allocation doesn't make use of any irq disable calls.

There are few spots where I couldn't replace the calls as the buffer
allocation routine is called as a part of init which is outside of the
softirq context.

Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-10 13:31:57 -05:00
Jeff Kirsher
4bd145bed5 i40e/i40evf: Convert macro to static inline
Inline functions are preferred over macros when they can be used
interchangeably.

CC: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:05 -08:00
Shannon Nelson
e51d9b8f32 i40e: add to NVM update debug message
Add a little more state context to an NVM update debug message.

Change-ID: I512160259052bcdbe5bdf1adf403ab2bf7984970
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:05 -08:00
Shannon Nelson
bf848f328c i40e: check for AQ timeout in aq_rc decode
Decoding the AQ return code is great except when the AQ send timed out
and there's no return code set.  This changes the handy decoder
interface to help catch and properly report the condition as a useful
errno rather than returning a misleading '0'.

Change-ID: I07a1f94f921606da49ffac7837bcdc37cd8222eb
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:04 -08:00
Shannon Nelson
a3f0b381ee i40e: poll on NVM semaphore only if not other error
Only poll on the NVM semaphore if there's time left on a previous
reservation.  Also, add a little more info to debug messages.

Change-ID: I2439bf870b95a28b810dcb5cca1c06440463cf8a
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:04 -08:00
Shannon Nelson
0fdd052c8c i40e: fix up NVM update sm error handling
The state transitions after an error were not managed well, so
these changes get us back to the INIT state or don't transition
out of the INIT state after most errors.

Change-ID: I90aa0e4e348dc4f58cbcdce9c5d4b7fd35981c6c
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:04 -08:00
Shannon Nelson
c509c1decb i40e: set max limit for access polling
Don't bother trying to set a smaller timeout on the polling,
just simplify the code and always use the max limit.  Also,
rename a variable for clarity and fix a comment.

Change-ID: I0300c3562ccc4fd5fa3088f8ae52db0c1eb33af5
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:03 -08:00
Shannon Nelson
2a6d8c2f01 i40e: remove unused nvm_semaphore_wait
The nvm_semaphore_wait field is set but never used, so let's
just get rid of it.

Change-ID: I2107bd29b69f99b1a61d7591d087429527c9d8fa
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:03 -08:00
Shannon Nelson
0f52958b2c i40e: init NVM update state on adminq init
The adminq init is run after the EMPR that is triggered by the
NVM update.  The final write command will cause the reset and
will want to wait for the ARQ event that signals the end of the
update, but the reset precludes the event being sent.  The state
is probably already at INIT, but we set it so here anyway, and
clear the release_on_done flag as well.

Change-ID: Ie9d724a39e71f988741abc3d51b4cb198c7e0272
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Acked-by: Kamil Krawczyk <kamil.krawczyk@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:03 -08:00
Shannon Nelson
43477d2bbf i40e: add range check to i40e_aq_rc_to_posix
Just to be sure, add a range check to avoid any possible
array index-out-of-bound issues.

CC: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Change-ID: I9323bee6732c2a47599816e1d6c6b3a1f8dcbf54
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Michal Kosiarz <michal.kosiarz@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:02 -08:00
Shannon Nelson
74d0d0ede7 i40e: rework debug messages for NVM update
Rework the debug messages in the NVM update state machine so that we can
turn them on and off dynamically rather than forcing a recompile/reload.

These can now be turned on with something like:
	ethtool -s eth1 msglvl 0xf000008f
and off with:
	ethtool -s eth1 msglvl 0xf000000f

The high 0xf0000000 gets the driver's attention that we want to change the
internal debug flags, and the 0x80 bit is the NVM debug.

Change-ID: I5efb9039400304b29a0fd6ddea3f47bb362e6661
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:02 -08:00
Shannon Nelson
bf06f7a9ba i40e: let firmware catch the NVM busy error
The NVM update operations take time finish asynchronously, and follow-on
update requests need to wait for the current one to finish.  Early
firmware didn't handle this well, so the code had to track the busy state.
The released firmware handles the busy state correctly, returning
I40E_AQ_RC_EBUSY if an update is still in progress, so the code no longer
needs to track this.

Change-ID: I6e6b4adc26d6dcc5fd7adfee5763423858a7d921
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:02 -08:00
Shannon Nelson
c150a50271 i40e: better error messages for NVM update issues
Add more detail to the NVM update error messages so folks
have a better chance at diagnosing issues without having to
resort to heroic measures to reproduce an issue.

Change-ID: I270d1a9c903baceaef0bebcc55d29108ac08b0bd
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:01 -08:00
Shannon Nelson
4443ec94d2 i40e: clear NVM update state on ethtool test
Once in a great while the NVMUpdate tools and the driver get out
of phase with each other.  This gives us a way to reset things
without having to unload the driver.

Change-ID: I353f688236249a666a90ba3e7233e0ed8c1a04e9
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-09 12:57:00 -08:00
Eyal Perry
892311f66f ethtool: Support for configurable RSS hash function
This patch extends the set/get_rxfh ethtool-options for getting or
setting the RSS hash function.

It modifies drivers implementation of set/get_rxfh accordingly.

This change also delegates the responsibility of checking whether a
modification to a certain RX flow hash parameter is supported to the
driver implementation of set_rxfh.

User-kernel API is done through the new hfunc bitmask field in the
ethtool_rxfh struct. A bit set in the hfunc field is corresponding to an
index in the new string-set ETH_SS_RSS_HASH_FUNCS.

Got approval from most of the relevant driver maintainers that their
driver is using Toeplitz, and for the few that didn't answered, also
assumed it is Toeplitz.

Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Ariel Elior <ariel.elior@qlogic.com>
Cc: Prashant Sreedharan <prashant@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: Hariprasad S <hariprasad@chelsio.com>
Cc: Sathya Perla <sathya.perla@emulex.com>
Cc: Subbu Seetharaman <subbu.seetharaman@emulex.com>
Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Bruce Allan <bruce.w.allan@intel.com>
Cc: Carolyn Wyborny <carolyn.wyborny@intel.com>
Cc: Don Skidmore <donald.c.skidmore@intel.com>
Cc: Greg Rose <gregory.v.rose@intel.com>
Cc: Matthew Vick <matthew.vick@intel.com>
Cc: John Ronciak <john.ronciak@intel.com>
Cc: Mitch Williams <mitch.a.williams@intel.com>
Cc: Amir Vadai <amirv@mellanox.com>
Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
Cc: Shradha Shah <sshah@solarflare.com>
Cc: Shreyas Bhatewara <sbhatewara@vmware.com>
Cc: "VMware, Inc." <pv-drivers@vmware.com>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-08 21:07:10 -05:00
David S. Miller
ae0bf0402a Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2014-12-06

This series contains updates to i40e and i40evf.

Shannon provides several patches to cleanup and fix i40e.  First removes
an unneeded break statement in i40e_vsi_link_event().  Then removes
some debug messages that really do not give any useful information and
ends up getting printed every service_task loop, which fills the logfile
with noise when AQ tracing is enabled.  Updates the aq_cmd arguments to
use %i which is much more forgiving and user friendly than the more
restrictive %x, or %d.  Fixes the netdev_stat macro, where the old
xxx_NETDEV_STAT() macro was defined long before the newer
rtnl_link_stats64 came into being, and just never got updated.
Getting the pf_id from the function number had an issue when
when the PF was setup in passthru mode, the PCI bus/device/function
was virtualized and the number in the VM is different from the number in
the bare metal.  This caused HW configuration issues when the wrong pf_id
was used to set up the HMC and other structures.  The PF_FUNC_RID register
has the real bus/device/function information as configured by the BIOS,
so use that for a better number.

Carolyn adds additional text description for the base pf0 and flow
director generated interrupts, since these interrupts are difficult
to distinguish per port on a multi-function device.

Jacob resolves an issue related to images with multiple PFs per
physical port.  We cannot fully support 1588 PTP features, since only
one port should control (i.e. write) the registers at a time.  Doing
so can cause interference of functionality.

Anjali provides several updates to i40e, first adds the Virtual Channel
OP event opcode for CONFIG_RSS, so that the Virtual Channel state
machine can properly decipher status change events.  Then updates the
driver to add (and use) i40e_is_vf macro for future expansion when new
VF MAC types get added.  Adds new update VSI flow to accommodate a
firmware dix with VSI loopback mode.  All VSIs on a VEB should either
have loopback enabled or disabled, a mixed mode is not supported for a
VEB.  Since our driver supports multiple VSIs per PF that need to talk to
each other make sure to enable Loopback for the PF and FDIR VSI as well.

Mitch provides a couple of i40e and i40evf patches.  First updates
i40evf init code more adept at handling when multiple VFs attempt
to initialize simultaneously.

Joe Perches provides a i40e patch which resolves a compile warning
about about frame size being larger than 2048 bytes by reducing the
stack use by using kmemdup and not using a very large struct on the
stack.

v2:
 - Dropped patch 13 & 14 while Mitch reworks the patches based on
   feedback from Ben Hutchings, probably the tryptophan in the turkey
   is to blame for the delay...
 - Added Joe Perches patch which resolves a compile warning about frame
   size
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-08 20:49:52 -05:00
Alexander Duyck
a94d9e224e ethernet/intel: Use eth_skb_pad and skb_put_padto helpers
Update the Intel Ethernet drivers to use eth_skb_pad() and skb_put_padto
instead of doing their own implementations of the function.

Also this cleans up two other spots where skb_pad was called but the length
and tail pointers were being manipulated directly instead of just having
the padding length added via __skb_put.

Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-08 20:47:42 -05:00
Rafael J. Wysocki
e3d857e1ae Merge branch 'pm-runtime'
* pm-runtime: (25 commits)
  i2c-omap / PM: Drop CONFIG_PM_RUNTIME from i2c-omap.c
  dmaengine / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  drivers: sh / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  e1000e / igb / PM: Eliminate CONFIG_PM_RUNTIME
  MMC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  MFD / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  misc / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  media / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  input / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  iio / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  hsi / OMAP / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  i2c-hid / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  drm / exynos / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  gpio / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  hwrandom / exynos / PM: Use CONFIG_PM in #ifdef
  block / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
  USB / PM: Drop CONFIG_PM_RUNTIME from the USB core
  PM: Merge the SET*_RUNTIME_PM_OPS() macros
  PM / Kconfig: Do not select PM directly from Kconfig files
  PCI / PM: Drop CONFIG_PM_RUNTIME from the PCI core
  ...
2014-12-08 20:00:44 +01:00
Joe Perches
e6c97234d1 i40e: Reduce stack in i40e_dbg_dump_desc
Reduce stack use by using kmemdup and not using a very
large struct on stack.

In function ‘i40e_dbg_dump_desc’:
warning: the frame size of 8192 bytes is larger than 2048 bytes [-Wframe-larger-than=]

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 05:00:01 -08:00
Catherine Sullivan
a36fdd8e3e i40e: Bump i40e version to 1.2.2 and i40evf version to 1.0.6
Bump version.

Change-ID: I4264e81dcfb57ec46a3ede54b0a6cb25b497d3cb
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 04:53:03 -08:00
Shannon Nelson
5fb11d7610 i40e: get pf_id from HW rather than PCI function
Getting the pf_id from the function number was a good place to start,
but when the PF was setup in passthru mode, the PCI bus/device/function
was virtualized and the number in the VM is different from the number in
the bare metal.  This caused HW configuration issues when the wrong pf_id
was used to set up the HMC and other structures.  The PF_FUNC_RID register
has the real bus/device/function information as configured by the BIOS,
so use that for a better number.  This works in NPAR mode as well.

Change-ID: I65e3dd6c97594890c2bad566b83cc670b1dae534
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Acked-by: Kevin Scott <kevin.c.scott@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 04:46:45 -08:00
Mitch Williams
baf7327735 i40e: increase ARQ size
The ARQ needs to have at least as many entries as VFs, or the VFs will
get errors from the FW when they send messages to the PF. Since we don't
know how many VFs we'll end up with, just set up 128 descriptors.

Change-ID: I04ae3d1c7faf09110eb782214e9c05aeb62a6c59
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 04:39:30 -08:00
Anjali Singhai Jain
b64ba08481 i40e: Re enable Main VSI loopback setting in the reset path
There is an order in which this should happen. It turns out that FW will
not let you change the Loopback setting of the VSI with update VSI prior
to the VEB creation.

Change-ID: I7614ddff8b4c37702930c02f16f8c346aaa64bd1
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 04:33:04 -08:00
Anjali Singhai Jain
79c21a827e i40e: Add new update VSI flow to accommodate FW fix with VSI Loopback mode
All VSIs on a VEB should either have loopback enabled or disabled, a
mixed mode is not supported for a VEB. Since our driver supports multiple
VSIs per PF that need to talk to each other make sure to enable Loopback
for the PF and FDIR VSI as well.

Also, we now have to explicitly enable Loopback mode otherwise we fail
VSI creation for VMDq and VF VSIs.

Change-ID: Ib68c3ea4aeb730ac9468f930610de456efbe5b20
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 04:26:33 -08:00
Kevin Scott
b9a81b2b73 i40e: Increase reset delay
Increase reset delay to ensure all internal caches are properly flushed
in worst case scenario.

Change-ID: I6f059a9e024fbf9ef1debd32497eed21369957fc
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 04:20:08 -08:00
Mitch Williams
906a6937d8 i40evf: make early init sequence even more robust
When multiple VFs attempt to initialize simultaneously, the firmware may
delay or drop messages. Make the init code more adept at handling these
situations by a) reinitializing the admin queue if the firmware fails to
process a request, and b) resending a request if the PF doesn't answer.

Once the request has been sent again, the PF might end up getting both
requests and send the configuration information to the driver twice.
This will cause the VF to complain about receiving an unexpected message
from the PF. Since this is not fatal, reduce the warning level of the
log messages that are generated in response to this event.

Change-ID: I9370a1a2fde2ad3934fa25ccfd0545edfbbb4805
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 04:13:40 -08:00
Shannon Nelson
fad177dc8b i40e: fix netdev_stat macro definition
The old xxx_NETDEV_STAT() macro was defined long before the newer
rtnl_link_stats64 came into being, and just never got updated.  Since we're
using rtnl_link_stats64 in other parts of the driver, we should use it
here as well.  We've just been lucky that the field definitions are the
same sizes.

Change-ID: I19fc71619905700235dcdf0d3c8153aec81d36de
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 04:07:02 -08:00
Anjali Singhai Jain
e7f2e4b94c i40e: Define and use i40e_is_vf macro
This patch is useful for future expansion when new VF MAC types get
added. It helps with cleaning up VF driver flow.

Change-ID: Ibe1eeb71262a3a40f24a1c5409436bdc3411da7f
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Greg Rose <gregory.v.rose@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 04:00:24 -08:00
Anjali Singhai Jain
09f7efabd5 i40e: Add a virtual channel op to config RSS
Add the Virtual Channel OP event opcode for CONFIG_RSS, so that the
Virtual Channel state machine can properly decipher status change events.

Change-ID: I09939c7aa380147f60c49fd01ef2e27d0dc1c299
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 03:53:48 -08:00
Jacob Keller
fe88bda9e6 i40e: don't enable PTP support on more than one PF per port
Resolve an issue related to images with multiple PFs per physical
port. We cannot fully support 1588 PTP features, since only one port
should control (ie: write) the registers at a time. Doing so can cause
interference of functionality.

It may be possible to partially implement the API for only those
features without side effects. However, this at minimum means non
controlling PFs lose Tx timestamps, frequency atunement, and possibly
SYSTIME adjustment. There may be further impact I did not discover.
Since the API in the kernel expects these features to work, it is
simpler and less dangerous to just disable PTP features on all PFs not
identified as the controlling PF in PRTTSYN_CTL0.PF_ID.

This change also removes the warning printed when hwtstaml IOCTL is
called on the wrong PF. This is actually meaningless now, since only one
PF per port will support it. In addition, the ethtool get_ts_info IOCTL
was updated so that only the controlling port will even indicate support
(so as not to confuse users).

The overall downside is complete loss of functionality on non
controlling PF, vs the possible gain of partial support. The biggest
factor for choosing this approach is simplicity and ensuring that the
main PF will work. There could easily be other portions of the 1588
logic with side effects I am not aware, and the reduced functionality
that might be made available is significantly less useful. In addition,
the API does not allow for proper indication of why particular features
are not supported. These reasons are enough to decide for the simpler
approach to resolving this issue.

Change-ID: If4696bae686fc18aef6552b67dd417213d987c16
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Jim Young <jamesx.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 03:47:15 -08:00
Carolyn Wyborny
b2008cbf8a i40e: Add description to misc and fd interrupts
This patch adds additional text description for base pf0 and flow director
generated interrupts.  Without this patch, these interrupts are difficult
to distinguish per port on a multi-function device.

Change-ID: I4662e1b38840757765a3fe63d90219d28e76bfab
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 03:40:40 -08:00
Shannon Nelson
fbe8210100 i40e: allow various base numbers in debugfs aq commands
Use the 'i' rather than the more restrictive 'x' or 'd' in the aq_cmd
arguments.  This makes the user interface much more forgiving and user
friendly.

Change-ID: I5dcd57b9befc047e06b74cf1152a25a3fa9e1309
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 03:33:59 -08:00
Shannon Nelson
038861b21b i40e: remove useless debug noise
This message really doesn't give any useful information and ends up
getting printed every service_task loop in the Linux driver, filling the
logfile with noise when AQ tracing is enabled.  This patch simply removes
the noise.

Change-ID: I30ad51e6b03c7ad12a7d9c102def0087db622df3
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Acked-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 03:27:16 -08:00
Shannon Nelson
2352b849a4 i40e: Remove unneeded break statement
This case statement is empty and the fall through just breaks out
so remove the break and let it fall through to break out.

Change-ID: I1b5ba9870d5245ca80bfca6e7f5f089e2eb8ccb0
Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-06 03:20:43 -08:00
Emil Tantilov
0333464f5f ixgbevf: fix possible crashes in probe and remove
This patch resolves couple of issues in ixgbevf_probe/remove():

1. Fix a case where adapter->state is tested after free_netdev() this is
same as the patch for ixgbe from Daniel Borkmann <dborkman@redhat.com>:
commit b5b2ffc057 ("ixgbe: fix use after free adapter->state test in ixgbe_remove/ixgbe_probe")

2. Move pci_set_drvdata() after all the error checks in ixgbevf_probe() and
then add a check in ixgbevf_probe() to avoid running the cleanup functions
twice in cases where probe failed.

CC: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:09 -08:00
Emil Tantilov
47068b0ddf ixgbevf: add support for X550 VFs
This patch adds initial support for VFs on a new mac - X550.

The patch adds the basic structures and device IDs for the X550 VFs
that would allow the driver to load and pass traffic.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:08 -08:00
Emil Tantilov
0fb6a55cc3 ixgbe: fix crash on rmmod after probe fail
The driver has logic to free up used data in case any of the checks in
ixgbe_probe() fail, however there is a similar set of cleanups that can
occur on driver unload in ixgbe_remove() which can cause the rmmod command
to crash.

This patch aims to fix the logic by moving pci_set_drvdata() after all error
checks and then adds a check in ixgbe_remove() to skip it altogether if
adapter comes up empty.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:08 -08:00
Don Skidmore
9be4a9bb34 ixgbe: bump version number
Since we now support X550 mac's bump the version number to reflect this.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:08 -08:00
Don Skidmore
6a14ee0cfb ixgbe: Add X550 support function pointers
This patch extends the function pointer structure to include the new
X550 class MAC types. This creates a new file ixgbe_x550.c that contains
all of the new methods.  Because of similarities to the X540 part in
some cases we just use it's methods where they can be used without any
modification.  These exported functions are now defined in the new
ixgbe_x540.h file.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:07 -08:00
Don Skidmore
735c35afed ixgbe: cleanup checksum to allow error results
Currently the shared code checksum calculation function only
returns a u16 and cannot return an error code. Unfortunately
a variety of errors can happen that completely prevent the
calculation of a checksum. So, change the function return value
from a u16 to an s32 and return a negative value on error, or the
positive checksum value when there is no error.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:07 -08:00
Don Skidmore
28abba05d9 ixgbe: add methods for combined read and write operations
Some X550 procedures will be using CS4227 PHY and need to
perform combined read and write operations.  This patch
adds those methods.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:07 -08:00
Don Skidmore
030eaece2d ixgbe: Add x550 SW/FW semaphore support
The X550 hardware will use more bits in the mask, so change
the prototypes to match.  This larger mask will require changes
in callers which use the higher bits. Likewise since X550 will
use different semaphore mask values and will use the lan_id
value.  So save these values in the ixgbe_phy_info struct.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:06 -08:00
Don Skidmore
b48e4aa3e5 ixgbe: Add timeout parameter to ixgbe_host_interface_command
Since on X550 we use host interface commands to read,write and erase
some commands require more time to complete. So this adds a timeout
parameter to ixgbe_host_interface_command as wells as a return_data
parameter allowing us to return with any data.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:06 -08:00
Don Skidmore
0f9b232b17 ixgbe: add support for X550 extended RSS support
The new X550 family of MAC's will have a larger RSS hash (16 -> 64).
It will also support individual VF to have their own independent RSS
hash key.  This patch will enable this functionality

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:06 -08:00
Emil Tantilov
9079e41631 ixgbe: remove CIAA/D register reads from bad VF check
Accessing the CIAA/D register can block access to the PCI config space.

This patch removes the read/write operations to the CIAA/D registers
and makes use of standard kernel functions for accessing the PCI config
space.

In addition it moves ixgbevf_check_for_bad_vf() into the watchdog subtask
which reduces the frequency of the checks.

CC: Alex Williamson <alex.williamson@redhat.com>
Reported-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:05 -08:00
Martin K Petersen
c762dff24c ixgbe: Look up MAC address in Open Firmware or IDPROM
Attempt to look up the MAC address in Open Firmware on systems that
support it. On SPARC resort to using the IDPROM if no OF address is
found.

Signed-off-by: Martin K Petersen <martin.petersen@oracle.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:05 -08:00
Alexander Duyck
ad435ec689 ixgbe: Remove tail write abstraction and add missing barrier
This change cleans up the tail writes for the ixgbe descriptor queues.  The
current implementation had me confused as I wasn't sure if it was still
making use of the surprise remove logic or not.

It also adds the mmiowb which is needed on ia64, mips, and a couple other
architectures in order to synchronize the MMIO writes with the Tx queue
_xmit_lock spinlock.

Cc: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:05 -08:00
Alexander Duyck
18cb652a41 ixgbe: Clean-up page reuse code
This patch cleans up the page reuse code getting it into a state where all
the workarounds needed are in place as well as cleaning up a few minor
oversights such as using __free_pages instead of put_page to drop a locally
allocated page.

It also cleans up how we clear the descriptor status bits.  Previously they
were zeroed as a part of clearing the hdr_addr.  However the hdr_addr is a
64 bit field and 64 bit writes can be a bit more expensive on on 32 bit
systems.  Since we are no longer using the header split feature the upper
32 bits of the address no longer need to be cleared.  As a result we can
just clear the status bits and leave the length and VLAN fields as-is which
should provide more information in debugging.

Cc: Don Skidmore <donald.c.skidmore@intel.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@redhat.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 09:13:04 -08:00
Rafael J. Wysocki
d61c81cb68 e1000e / igb / PM: Eliminate CONFIG_PM_RUNTIME
After commit b2b49ccbdd (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks
depending on CONFIG_PM_RUNTIME within #ifdef blocks depending on
CONFIG_PM may be dropped now.

Do that in the e1000e and igb network drivers.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2014-12-05 03:06:53 +01:00
Scott Feldman
2c3c031c8f bridge: add brport flags to dflt bridge_getlink
To allow brport device to return current brport flags set on port.  Add
returned flags to nested IFLA_PROTINFO netlink msg built in dflt getlink.
With this change, netlink msg returned for bridge_getlink contains the port's
offloaded flag settings (the port's SELF settings).

Signed-off-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02 20:01:24 -08:00
Jiri Pirko
02637fce3e net: rename netdev_phys_port_id to more generic name
So this can be reused for identification of other "items" as well.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Reviewed-by: Thomas Graf <tgraf@suug.ch>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02 20:01:19 -08:00
Jiri Pirko
f6f6424ba7 net: make vid as a parameter for ndo_fdb_add/ndo_fdb_del
Do the work of parsing NDA_VLAN directly in rtnetlink code, pass simple
u16 vid to drivers from there.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-12-02 20:01:18 -08:00
David S. Miller
60b7379dc5 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2014-11-29 20:47:48 -08:00
Thomas Graf
4ea85e831e net: Check for presence of IFLA_AF_SPEC
ndo_bridge_setlink() is currently only called on the slave if
IFLA_AF_SPEC is set but this is a very fragile assumption and may
change in the future.

Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-26 15:29:01 -05:00
Thomas Graf
b7c1a31411 net: Validate IFLA_BRIDGE_MODE attribute length
Payload is currently accessed blindly and may exceed valid message
boundaries.

Fixes: a77dcb8c8 ("be2net: set and query VEB/VEPA mode of the PF interface")
Fixes: 815cccbf1 ("ixgbe: add setlink, getlink support to ixgbe and ixgbevf")
Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Cc: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-26 15:29:00 -05:00
Carolyn Wyborny
17a402a007 igb: Fixes needed for surprise removal support
This patch adds some checks in order to prevent panic's on surprise
removal of devices during S0, S3, S4.  Without this patch, Thunderbolt
type device removal will panic the system.

Signed-off-by: Yanir Lubetkin <yanirx.lubetkin@intel.com>
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-23 14:26:12 -05:00