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2015-09-25Merge tag 'drm-intel-fixes-2015-09-24' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-fixes a few drm/i915 fixes, including a fix to the recent regression reported by Sedat Dilek * tag 'drm-intel-fixes-2015-09-24' of git://anongit.freedesktop.org/drm-intel: drm/i915/bios: handle MIPI Sequence Block v3+ gracefully drm/i915: Add primary plane to mask if it's visible drm/i915: workaround bad DSL readout v3 drm/i915: fix kernel-doc warnings in intel_audio.c
2015-09-24cgroup, writeback: don't enable cgroup writeback on traditional hierarchiesTejun Heo
inode_cgwb_enabled() gates cgroup writeback support. If it returns true, each inode is attached to the corresponding memory domain which gets mapped to io domain. It currently only tests whether the filesystem and bdi support cgroup writeback; however, cgroup writeback support doesn't work on traditional hierarchies and thus it should also test whether memcg and iocg are on the default hierarchy. This caused traditional hierarchy setups to hit the cgroup writeback path inadvertently and ended up creating separate writeback domains for each memcg and mapping them all to the root iocg uncovering a couple issues in the cgroup writeback path. cgroup writeback was never meant to be enabled on traditional hierarchies. Make inode_cgwb_enabled() test whether both memcg and iocg are on the default hierarchy. Signed-off-by: Tejun Heo <tj@kernel.org> Reported-by: Artem Bityutskiy <dedekind1@gmail.com> Reported-by: Dexuan Cui <decui@microsoft.com> Link: http://lkml.kernel.org/g/1443012552.19983.209.camel@gmail.com Link: http://lkml.kernel.org/g/f30d4a6aa8a546ff88f73021d026a453@SIXPR30MB031.064d.mgd.msft.net
2015-09-24ipv6: remove unused neigh parameter from ndisc functionsJiri Benc
Since commit 12fd84f4383b1 ("ipv6: Remove unused neigh argument for icmp6_dst_alloc() and its callers."), the neigh parameter of ndisc_send_na and ndisc_send_ns is unused. CC: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-24genetlink: simplify genl_notifyJiri Benc
The genl_notify function has too many arguments for no real reason - all callers use genl_info to get them anyway. Just pass the genl_info down to genl_notify. Signed-off-by: Jiri Benc <jbenc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-24netlink: Replace rhash_portid with boundHerbert Xu
On Mon, Sep 21, 2015 at 02:20:22PM -0400, Tejun Heo wrote: > > store_release and load_acquire are different from the usual memory > barriers and can't be paired this way. You have to pair store_release > and load_acquire. Besides, it isn't a particularly good idea to OK I've decided to drop the acquire/release helpers as they don't help us at all and simply pessimises the code by using full memory barriers (on some architectures) where only a write or read barrier is needed. > depend on memory barriers embedded in other data structures like the > above. Here, especially, rhashtable_insert() would have write barrier > *before* the entry is hashed not necessarily *after*, which means that > in the above case, a socket which appears to have set bound to a > reader might not visible when the reader tries to look up the socket > on the hashtable. But you are right we do need an explicit write barrier here to ensure that the hashing is visible. > There's no reason to be overly smart here. This isn't a crazy hot > path, write barriers tend to be very cheap, store_release more so. > Please just do smp_store_release() and note what it's paired with. It's not about being overly smart. It's about actually understanding what's going on with the code. I've seen too many instances of people simply sprinkling synchronisation primitives around without any knowledge of what is happening underneath, which is just a recipe for creating hard-to-debug races. > > @@ -1539,7 +1546,7 @@ static int netlink_bind(struct socket *sock, struct sockaddr *addr, > > } > > } > > > > - if (!nlk->portid) { > > + if (!nlk->bound) { > > I don't think you can skip load_acquire here just because this is the > second deref of the variable. That doesn't change anything. Race > condition could still happen between the first and second tests and > skipping the second would lead to the same kind of bug. The reason this one is OK is because we do not use nlk->portid or try to get nlk from the hash table before we return to user-space. However, there is a real bug here that none of these acquire/release helpers discovered. The two bound tests here used to be a single one. Now that they are separate it is entirely possible for another thread to come in the middle and bind the socket. So we need to repeat the portid check in order to maintain consistency. > > @@ -1587,7 +1594,7 @@ static int netlink_connect(struct socket *sock, struct sockaddr *addr, > > !netlink_allowed(sock, NL_CFG_F_NONROOT_SEND)) > > return -EPERM; > > > > - if (!nlk->portid) > > + if (!nlk->bound) > > Don't we need load_acquire here too? Is this path holding a lock > which makes that unnecessary? Ditto. ---8<--- The commit 1f770c0a09da855a2b51af6d19de97fb955eca85 ("netlink: Fix autobind race condition that leads to zero port ID") created some new races that can occur due to inconcsistencies between the two port IDs. Tejun is right that a barrier is unavoidable. Therefore I am reverting to the original patch that used a boolean to indicate that a user netlink socket has been bound. Barriers have been added where necessary to ensure that a valid portid and the hashed socket is visible. I have also changed netlink_insert to only return EBUSY if the socket is bound to a portid different to the requested one. This combined with only reading nlk->bound once in netlink_bind fixes a race where two threads that bind the socket at the same time with different port IDs may both succeed. Fixes: 1f770c0a09da ("netlink: Fix autobind race condition that leads to zero port ID") Reported-by: Tejun Heo <tj@kernel.org> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Nacked-by: Tejun Heo <tj@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-24ALSA: hda - Disable power_save_node for ThinkpadsTakashi Iwai
Lenovo Thinkpads with recent Realtek codecs seem suffering from click noises at power transition since the introduction of widget power saving in 4.1 kernel. Although this might be solved by some delays in appropriate points, as a quick workaround, just disable the power_save_node feature for now. The gain it gives is relatively small, and this makes the situation back to pre 4.1 time. This patch ended up with a bit more code changes than usual because the existing fixup for Thinkpads is highly chained. Instead of adding yet another chain, combine a few of them into a single fixup entry, as a gratis cleanup. Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=943982 Cc: <stable@vger.kernel.org> # v4.1+ Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-24Merge tag 'asoc-fix-v4.3-rc2' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v4.3 A disappointingly large set of fixes, though none of them very big and very widely spread over many different drivers. Nothing especially stands out, it's mostly all device specific and relatively minor.
2015-09-24mac802154: iface: assume big endian for af_packetAlexander Aring
The callback "create" and "parse" from header_ops are called from netdev core upper-layer functionality, like af_packet. These callbacks assumes big endian for addresses and we should not introduce a special byteordering handling for ieee802154 over af_packet in userspace. We have an identical issue with setting the mac address which also assumes big endian byteordering. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-09-24ieee802154: remove unnecessary includesAlexander Aring
This patch removes some unnecessary includes from ieee802154 header, which was introduced by commit b609fb54adfa ("ieee802154: add helpers for frame control checks"). Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-09-24Merge tag 'spi-fix-v4.3-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A disappointingly large collection of fixes for SPI issues, though almost all in drivers (and there mainly the newly added Mediatek driver) and the core fixes are documentation and error handling. The driver fixes are all of the usual 'important if you see them' variety" * tag 'spi-fix-v4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: xtensa-xtfpga: fix register endianness spi: meson: Fix module autoload for OF platform driver spi: mediatek: fix wrong error return value on probe spi: fix kernel-doc warnings in spi.h spi: spidev: fix possible NULL dereference spi: atmel: remove warning when !CONFIG_PM_SLEEP spi: bcm2835: BUG: fix wrong use of PAGE_MASK spi: mediatek: fix spi cs polarity error spi: Fix documentation of spi_alloc_master() spi: spi-pxa2xx: Check status register to determine if SSSR_TINT is disabled spi: Mediatek: Document devicetree bindings update for spi bus spi: mediatek: fix spi clock usage error spi: mediatek: remove clk_disable_unprepare()
2015-09-24mrf24j40: remove trailing semicolonAlexander Aring
This patch removes a trailing semicolon which was introduced by commit d3f1bc3 ("mrf24j40: add cca mode support") and reported by kbuild test robot. Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-09-24Merge tag 'regulator-fix-v4.3-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fixes from Mark Brown: "A collection of fixes that came in since I tagged the merge window pull request for v4.3: - Error handling fixes in the core - Fixes to a couple of TI drivers for device specific issues - Several fixes for module autoloading" * tag 'regulator-fix-v4.3-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: vexpress: Fix module autoload for OF platform driver regulator: gpio: Fix module autoload for OF platform driver regulator: anatop: Fix module autoload for OF platform driver regulator: core: Correct return value check in regulator_resolve_supply regulator: tps65218: Fix missing zero typo regulator: pbias: program pbias register offset in pbias driver regulator: core: fix possible NULL dereference
2015-09-24Merge tag 'dm-4.3-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: "Two stable@ fixes: - DM thinp fix to properly advertise discard support as disabled for thin devices backed by a thin-pool with discard support disabled. - DM crypt fix to prevent the creation of bios that violate the underlying block device's max_segments limits. This fixes a relatively long-standing NCQ SSD corruption issue reported against dm-crypt ever since the dm-crypt cpu parallelization patches were merged back in 4.0" * tag 'dm-4.3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm crypt: constrain crypt device's max_segment_size to PAGE_SIZE dm thin: disable discard support for thin devices if pool's is disabled
2015-09-24Bluetooth: hci_bcm: Add suspend/resume runtime PM functionsFrederic Danis
Adds autosuspend runtime functionality to BCM UART driver. Autosuspend is enabled at end of bcm_setup. bcm_device_lock is used for system sleep functions as they can be called at any time. bcm_device_lock is not held for runtime suspend functions as this is only enabled as long as platform device is opened. Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-09-24Bluetooth: Remove useless rx_lock spinlockFrederic Danis
rx_lock spinlock is only used in hci_uart_tty_receive() which is the receive_buf ldisc callback. hci_uart_tty_receive() is protected from re-entrance by its only caller (flush_to_ldisc() in drivers/tty/tty_buffer.c) which held a mutex (buf->lock) for this section. This lock allows "safe use of the line discipline's receive_buf() method by excluding the buffer work and any pending flush from using the flip buffer." (comments from tty_buffer_lock_exclusive() in drivers/tty/tty_buffer.c) So, no need to double protect this resource with rx_lock. Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-09-24Bluetooth: hci_bcm: Prepare PM runtime supportFrederic Danis
Change some CONFIG_PM_SLEEP to CONFIG_PM as hu and is_suspended parameters will be used during PM runtime callbacks. Add bcm_suspend_device() and bcm_resume_device() which performs link management for PM callbacks. These functions will be used for runtime management. Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-09-24Bluetooth: hci_bcm: Fix IRQ polarity for T100Frederic Danis
ACPI table for BCM2E39 of T100TA is not correct. Set correct irq_polarity for this device. Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-09-24Bluetooth: Add BT_WARN and bt_dev_warn logging macrosFrederic Danis
Add warning logging macros to bluetooth subsystem logs. Signed-off-by: Frederic Danis <frederic.danis@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2015-09-24ALSA: hda/tegra - async probe for avoiding module loading deadlockTakashi Iwai
The Tegra HD-audio controller driver causes deadlocks when loaded as a module since the driver invokes request_module() at binding with the codec driver. This patch works around it by deferring the probe in a work like Intel HD-audio controller driver does. Although hovering the codec probe stuff into udev would be a better solution, it may cause other regressions, so let's try this band-aid fix until the more proper solution gets landed. Reported-by: Thierry Reding <treding@nvidia.com> Tested-by: Thierry Reding <treding@nvidia.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-09-24ARM: alignment: fix alignment handling for uaccess changesRussell King
Jonathan Liu reports that the recent addition of CPU_SW_DOMAIN_PAN causes wpa_supplicant to die due to the following kernel oops: Unhandled fault: page domain fault (0x81b) at 0x001017a2 pgd = ee1b8000 [001017a2] *pgd=6ebee831, *pte=6c35475f, *ppte=6c354c7f Internal error: : 81b [#1] SMP ARM Modules linked in: rt2800usb rt2x00usb rt2800librt2x00lib crc_ccitt mac80211 CPU: 1 PID: 202 Comm: wpa_supplicant Not tainted 4.3.0-rc2 #1 Hardware name: Allwinner sun7i (A20) Family task: ec872f80 ti: ee364000 task.ti: ee364000 PC is at do_alignment_ldmstm+0x1d4/0x238 LR is at 0x0 pc : [<c001d1d8>] lr : [<00000000>] psr: 600c0113 sp : ee365e18 ip : 00000000 fp : 00000002 r10: 001017a2 r9 : 00000002 r8 : 001017aa r7 : ee365fb0 r6 : e8820018 r5 : 001017a2 r4 : 00000003 r3 : d49e30e0 r2 : 00000000 r1 : ee365fbc r0 : 00000000 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none[ 34.393106] Control: 10c5387d Table: 6e1b806a DAC: 00000051 Process wpa_supplicant (pid: 202, stack limit = 0xee364210) Stack: (0xee365e18 to 0xee366000) ... [<c001d1d8>] (do_alignment_ldmstm) from [<c001d510>] (do_alignment+0x1f0/0x904) [<c001d510>] (do_alignment) from [<c00092a0>] (do_DataAbort+0x38/0xb4) [<c00092a0>] (do_DataAbort) from [<c0013d7c>] (__dabt_usr+0x3c/0x40) Exception stack(0xee365fb0 to 0xee365ff8) 5fa0: 00000000 56c728c0 001017a2 d49e30e0 5fc0: 775448d2 597d4e74 00200800 7a9e1625 00802001 00000021 b6deec84 00000100 5fe0: 08020200 be9f4f20 0c0b0d0a b6d9b3e0 600c0010 ffffffff Code: e1a0a005 e1a0000c 1affffe8 e5913000 (e4ea3001) ---[ end trace 0acd3882fcfdf9dd ]--- This is caused by the alignment handler not being fixed up for the uaccess changes, and userspace issuing an unaligned LDM instruction. So, fix the problem by adding the necessary fixups. Reported-by: Jonathan Liu <net147@gmail.com> Tested-by: Jonathan Liu <net147@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-09-24Merge tag 'vmwgfx-fixes-4.3-150924' of ↵Dave Airlie
git://people.freedesktop.org/~thomash/linux into drm-fixes Pull request of 2015-09-24 Vmwgfx fixes for 4.3: - A couple of uninitialized variable fixes by Christian Engelmayer - A TTM fix for a bug that causes problems with the new vmwgfx device init - A vmwgfx refcounting fix - A vmwgfx iomem caching fix - A DRM change to allow also control clients to read the drm driver version. * tag 'vmwgfx-fixes-4.3-150924' of git://people.freedesktop.org/~thomash/linux: drm: Allow also control clients to check the drm version drm/vmwgfx: Fix uninitialized return in vmw_kms_helper_dirty() drm/vmwgfx: Fix uninitialized return in vmw_cotable_unbind() drm/vmwgfx: Only build on X86 drm/ttm: Fix memory space allocation v2 drm/vmwgfx: Map the fifo as cached drm/vmwgfx: Fix up user_dmabuf refcounting
2015-09-24drm: Allow also control clients to check the drm versionThomas Hellstrom
This should be harmless. Vmware will, due to old infrastructure reasons, be using a privileged control client to supply GUI layout information rather than obtaining it from the device. That control client will be needing access to DRM version information. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Brian Paul <brianp@vmware.com> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Acked-by: David Herrmann <dh.herrmann@gmail.com>
2015-09-24drm/vmwgfx: Fix uninitialized return in vmw_kms_helper_dirty()Christian Engelmayer
Function vmw_kms_helper_dirty() uses the uninitialized variable ret as return value. Make the result deterministic and directly return as the variable is unused anyway. Detected by Coverity CID 1324255. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
2015-09-24drm/vmwgfx: Fix uninitialized return in vmw_cotable_unbind()Christian Engelmayer
Function vmw_cotable_unbind() uses the uninitialized variable ret as return value. Make the result deterministic and directly return as the variable is unused anyway. Detected by Coverity CID 1324256. Signed-off-by: Christian Engelmayer <cengelma@gmx.at> Reviewed-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
2015-09-23ixgbe: Advance version to 4.2.1Mark Rustad
With the addition of X550em_x SFP+ support, the driver is now functionally equivalent to what will be the 4.2.1 driver when released, so change the version to match. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-23ixgbe: X540 thermal warning interrupt not a GPIMark Rustad
The X540 thermal interrupt (IXGBE_EIMS_TS) is not an SDP, so it doesn't need to be enabled in ixgbe_setup_gpie(). In fact the value is simply not for the GPIE register at all. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-23ixgbe: Fix FCRTH value in VM-to-VM loopback modeMark Rustad
The 82599 and X540 datasheets require that FCRTH be "set" for Tx switching (VM-to-VM loopback) but it did not previously specify what the value should be set to. It has now been determined that the correct value is RXPBSIZE - (24*1024). This setting is also required for later devices. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-23ixgbe: Only clear adapter_stopped if ixgbe_setup_fc succeededMark Rustad
A logic error here results in the adapter_stopped flag only being cleared when ixgbe_setup_fc returns an error. Correct the logic. Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-23ixgbe: Correct several flaws with with DCA setupMark Rustad
This change does two things. First, it makes it so that we always set the relaxed ordering bits related to the DCA registers even if DCA is not enabled. Second, it moves the configuration out of the ixgbe_down function and into the ixgbe_configure function before enabling the Rx and Tx rings. This ensures that DCA is configured correctly before starting to process packets. Thanks to Alex Duyck for this fix. CC: Alex Duyck <aduyck@mirantis.com> Signed-off-by: Mark Rustad <mark.d.rustad@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-09-23ixgbe: Add new X550EM SFP+ device IDMark Rustad
Add new device ID for X550EM device with SFPs. 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>
2015-09-23ixgbe: Update ixgbe_disable_pcie_master flow for X550*Mark Rustad
This patch skips the PCI transactions pending check in ixgbe_disable_pcie_master. This is done to addresses a known HW issue where the PCI transactions pending bit sticks high when there are pending transactions. HW engineering instructed to workaround this issue by wait and then continue with our reset flow. 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>
2015-09-24fix encryption error checks on mountSteve French
Signed-off-by: Steve French <steve.french@primarydata.com>
2015-09-23ixgbe: Add small packet padding support for X550Mark Rustad
This patch sets RDRXCTL.PSP when the driver is in SRIOV mode which enables padding of small packets. 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>
2015-09-24[SMB3] Fix sec=krb5 on smb3 mountsSteve French
Kerberos, which is very important for security, was only enabled for CIFS not SMB2/SMB3 mounts (e.g. vers=3.0) Patch based on the information detailed in http://thread.gmane.org/gmane.linux.kernel.cifs/10081/focus=10307 to enable Kerberized SMB2/SMB3 a) SMB2_negotiate: enable/use decode_negTokenInit in SMB2_negotiate b) SMB2_sess_setup: handle Kerberos sectype and replicate Kerberos SMB1 processing done in sess_auth_kerberos Signed-off-by: Noel Power <noel.power@suse.com> Signed-off-by: Jim McDonough <jmcd@samba.org> CC: Stable <stable@vger.kernel.org> Signed-off-by: Steve French <steve.french@primarydata.com>
2015-09-23ixgbe: Correct setting of RDRXCTL register for X550* devicesMark Rustad
Setting the X550* RDRXCTL register should fall through into X540 and 82599, not 82598. 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>
2015-09-23ixgbe: Correct error path in semaphore handlingMark Rustad
The timeout path is supposed to release the semaphore, so do that. 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>
2015-09-23ixgbe: Add I2C bus mux supportMark Rustad
Take control of an I2C mux that selects which SFP is attached to the I2C bus. The control of the mux is captured in the taking and releasing of the related semaphore. Because only port 1 can control the mux, port 1 always leaves the mux set to select port 0. 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>
2015-09-23ixgbe: Limit SFP polling rateMark Rustad
Reduce the frequency of polling for SFP modules. Because the service task sometimes runs at high rates, we can poll for SFPs too often. When an SFP is not present, the I2C timeouts that result are very costly. So, prevent SFP polling from being done more than once every two seconds. To reduce latency, the poll time is cleared in a couple of cases to permit the next service task execution to poll the SFP module. 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>
2015-09-23ixgbe: Allow SFP+ on more than 82598 and 82599Mark Rustad
Since SFP+ can be used with some X550 devices, permit them to be detected. 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>
2015-09-23ixgbe: Add logic to reset CS4227 when neededMark Rustad
On some hardware platforms, the CS4227 does not initialize properly. Detect those cases and reset it appropriately. 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>
2015-09-23ixgbe: Fix 1G and 10G link stability for X550EM_x SFP+Mark Rustad
Configures the CS4227 correctly for both 1G and 10G operation, by moving the code to ixgbe_setup_mac_link_sfp_x550em(). It needs to be in this function because we need both the module type and the speed, and this is the only function in the init flow that knows the speed. In contrast, ixgbe_setup_sfp_modules_X550em() does not know the speed, so we can't do anything useful here. This is a fundamental difference from the previous flow, and is due to the way the CS4227 is implemented. 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>
2015-09-23ixgbe: Add X550EM_x dual-speed SFP+ supportMark Rustad
This patch adds X550EM_x SFP+ dual-speed support. 82599 fiber link code was moved from ixgbe_82599.c to ixgbe_common.c for use by X550EM. SFP MAC link code is added to x550EM. 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>
2015-09-23ixgbe: Allow reduced delays during SFP detectionMark Rustad
Reduce the number of retries during PHY detection. This reduces pauses when no SFP is present. Once an SFP is detected, the normal retry count will be used. 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>
2015-09-23ixgbe: Clear I2C destination locationMark Rustad
Clear the destination location for I2C data initially so that the received data will not be affected by previous attempts. This could have returned wrong data in certain retry sequences. 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>
2015-09-24ipvs: Pass ipvs into ip_vs_gather_fragsEric W. Biederman
This will be needed later when the network namespace guessing is removed from ip_defrag. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2015-09-24ipvs: Remove skb_sknetEric W. Biederman
This function adds no real value and it obscures what the code is doing. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2015-09-24ipvs: Remove skb_netEric W. Biederman
This hack has no more users so remove it. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2015-09-24ipvs: Pass ipvs not net to ip_vs_protocol_net_(init|cleanup)Eric W. Biederman
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2015-09-24ipvs: Remove net argument from ip_vs_tcp_conn_listenEric W. Biederman
The argument is unnecessary and in practice confusing, and has caused the callers to do all manner of silly things. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2015-09-24ipvs: Pass ipvs through ip_vs_route_me_harder into sysctl_snat_rerouteEric W. Biederman
This removes the need to use the hack skb_net. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>