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2015-02-26brcmfmac: use helper function for changing SDIO stateArend van Spriel
Changing the SDIO state of the driver involves changing the bus interface state. Adding a helper function makes sure that knowledge is in one place. Reviewed-by: Hante Meuleman <meuleman@broadcom.com> Reviewed-by: Daniel (Deognyoun) Kim <dekim@broadcom.com> Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com> Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com> Signed-off-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26mwifiex: use alloc_workqueue's format strings capabilities for WQ namesAvinash Patil
alloc_workqueue() has string format formation ability e.g. wqname%ifname will be treated as wqnameifname. Use this and remove string operations while defining strings for workqueue names. Reported-by: Kees Cook <keescook@chromium.org> Signed-off-by: Avinash Patil <patila@marvell.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26brcm80211: drop unreachable else caseNicholas Mc Guire
the if/elseif/else is exhaustive - there is no 4th case given the rssi_ctrl_mask = RADIO_2055_NBRSSI_SEL | RADIO_2055_WBRSSI_G1_SEL | RADIO_2055_WBRSSI_G2_SEL; so this unreachable else case (dead code) can be dropped. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26brcmfmac: use msecs_to_jiffies for time conversionNicholas Mc Guire
This is only an API consolidation and should make things more readable it replaces var * HZ / 1000 by msecs_to_jiffies(var). Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Acked-by: Arend van Spriel <arend@broadcom.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26ath9k: Restart TSF2 timers on wakeupSujith Manoharan
When coming out of WoW sleep, check and restart timers based on TSF2. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26ath9k: Clear additional WoW eventsSujith Manoharan
The events for patterns 8..15 need to be cleared on wakeup. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26ath9k: Handle additional patterns on wakeupSujith Manoharan
Handle the user-configured patterns in the range 8..15 when waking up and update wow_status correctly. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26ath9k: Check MCI PowerSave stateSujith Manoharan
The power save state of MCI has to be disabled when enabling WoW sleep, check this properly. ar9003_mci_state() doesn't handle MCI_STATE_GET_WLAN_PS_STATE right now, but this will be done later when proper support for MCI/PS is added. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26ath9k: Add new MCI statesSujith Manoharan
Several new MCI states have to handled, add them to the list. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26ath9k: Set keep awake timerSujith Manoharan
When MCI is enabled and WoW sleep is enabled, make sure that the RTC keep awake timer is set with the required value. This is also required when the AR_WA is programmed. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26ath9k: Fix descriptors for keep-alive frameSujith Manoharan
Along with AR9462, AR9565 also has an extra field in the TX descriptor which needs to be zeroed out for the keep alive frame. This makes the earlier REG_WRITE redundant, so it can be removed. Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-02-26i40e: check pointers before useShannon Nelson
Make sure we don't try to dereference NULL pointers when returning values from the AdminQ calls. Change-ID: Ia6694f2f415d50acf0aba063c863568742799aff 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>
2015-02-26i40e: catch NVM write semaphore timeout and retryShannon Nelson
In some circumstances, a multi-write transaction takes longer than the default 3 minute timeout on the write semaphore. If the write failed with an EBUSY status, this is likely the problem, so here we try to reacquire the semaphore then retry the write. We only do one retry, then give up. Change-ID: I1c8be60688acc2f39573839579baf601207c4a36 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>
2015-02-26i40e: stop flow director on shutdownMitch A Williams
In some cases, the hardware would continue to try to access the FDIR ring after entering D3Hot state, which would cause either PCIe errors or NMIs, depending upon system configuration. Explicitly stop FDIR in our shutdown routine to eliminate this possibility. Change-ID: I1bd9fc7fd8f151fe24cad132ac9adddab923e3af 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>
2015-02-26i40e: disconnect irqs on shutdownShannon Nelson
Combine the ICR0 shutdown with the standard interrupt shutdown, and add the interrupt clearing to the PCI shutdown path. This prevents the driver from allowing stray interrupts or causing system logs from un-handled interrupts. Change-ID: I48f6ab95cad7f8ca77c1f26c92a51cc1034ced43 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>
2015-02-26i40evf: TCP/IPv6 over Vxlan Tx checksum offload fixAnjali Singhai
We were checking the outer Protocol flags and deciding the flow for inner header. This patch fixes that. This fixes the Tx checksum offload for TCP/IPv6 over vxlan. Change-ID: I837aaea921d34f71b24c2bc32aaadea5001ddf78 Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-26i40e: Issue a PF reset if Tx queue disable timeoutParikh, Neerav
As part of DCB reconfiguration flow if the Tx queue disable times out then issue a PF reset to do some level of recovery. Change-ID: I7550021c55bff355351c0365e61e1f05fcaff46d Signed-off-by: Neerav Parikh <neerav.parikh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-26i40e: Fix the Tx ring qset handle when DCB reconfiguresParikh, Neerav
When DCB is reconfigured to single TC the driver did not reset the Tx ring Qset handle to the correct mapping; which caused Tx queue disable timeouts. Change-ID: I4da5915ec92a83c281b478d653fae6ef1b72edfe Signed-off-by: Neerav Parikh <neerav.parikh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-26i40e: Fix the case where per TC queue count was higher than queues enabledAnjali Singhai
When the driver or hardware gets less interrupt vectors than the actual number of CPU cores, limit the queue count for the priority queue traffic class (TC) queues. This will fix a warning with multiple function mode where systems regularly have more cores than vectors. Also add extra comment for readability. Change-ID: I4f02226263aa3995e1f5ee5503eac0cd6ee12fbd Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Tested-by: Jim Young <james.m.young@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-26i40e: fix race in hang checkJesse Brandeburg
The driver was having some issues with false Tx hang detection. This makes the driver a little more direct with the checks for progress forward by directly checking the head write back address and tail register when determining progress. This avoids Tx hangs where the software gets behind, because we are directly checking hardware state when determining hang state. Change-ID: I774f0e861c9e8ab5ccb213634100fe15440ae24a Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Jim Young <james.m.young@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-26i40e: Fix TSO with more than 8 frags per segment issueAnjali Singhai
The hardware has some limitations the driver needs to adhere to, that we found in extended testing. 1) no more than 8 descriptors per packet on the wire 2) no header can span more than 3 descriptors If one of these events occurs, the hardware will generate an internal error and freeze the Tx queue. This patch linearizes the skb to avoid these situations. Change-ID: I37dab7d3966e14895a9663ec4d0aaa8eb0d9e115 Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Tested-by: Jim Young <james.m.young@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-26i40e: Don't check for Tx hang when PF downAkeem G Abodunrin
This patch adds check to bail out if device is already down when checking for Tx hang subtask. Change-ID: I3853fb7a6d11cb9a4c349b687cb25c15b19977a0 Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Jim Young <james.m.young@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-26i40e: fix shift precedence issueShannon Nelson
Add parens to make sure the shift and bitwise precedences don't work backwards for us. Change-ID: I60c10ef4fad6bc654522b9d8a53da2e270a0f268 Reported-by: Joe Perches <joe@perches.com> 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>
2015-02-26i40e: Fix memory leak at failure path in i40e_dbg_command_write()Alexey Khoroshilov
The patch fixes a leak of 'cmd_buf' when copy_from_user() failed in i40e_dbg_command_write(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Tested-by: Jim Young <james.m.young@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2015-02-26s390: let the compiler do page clearingChristian Borntraeger
The hardware folks told me that for page clearing "when you exactly know what to do, hand written xc+pfd is usally faster then mvcl for page clearing, as it saves millicode overhead and parameter parsing and checking" as long as you dont need the cache bypassing. Turns out that gcc already does a proper xc,pfd loop. A small test on z196 that does buff = mmap(NULL, bufsize,PROT_EXEC|PROT_WRITE|PROT_READ,AP_PRIVATE| MAP_ANONYMOUS,0,0); for ( i = 0; i < bufsize; i+= 256) buff[i] = 0x5; gets 20% faster (touches every cache line of a page) and buff = mmap(NULL, bufsize,PROT_EXEC|PROT_WRITE|PROT_READ,AP_PRIVATE| MAP_ANONYMOUS,0,0); for ( i = 0; i < bufsize; i+= 4096) buff[i] = 0x5; is within noise ratio (touches one cache line of a page). As the clear_page is usually called for first memory accesses we can assume that at least one cache line is used afterwards, so this change should be always better. Another benchmark, a make -j 40 of my testsuite in tmpfs with hot caches on a 32cpu system: -- unpatched -- -- patched -- real 0m1.017s real 0m0.994s (~2% faster, but in noise) user 0m5.339s user 0m5.016s (~6% faster) sys 0m0.691s sys 0m0.632s (~8% faster) Let use the same define to memset as the asm-generic variant Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-26s390/pci: fix possible information leak in mmio syscallSebastian Ott
Make sure that even in error situations we do not use copy_to_user on uninitialized kernel memory. Cc: stable@vger.kernel.org # 3.19+ Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-26s390/dcss: array index 'i' is used before limits check.Ameen Ali
Avoid out-of-bounds-read by checking count before indexing. Signed-off-by : Ameen Ali <Ameenali023@gmail.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-26s390/scm_block: fix off by one during cluster reservationSebastian Ott
We increase the msb_count after we're finished building the request. That way we can always access the current request via scmrq->request[msb_count] . But once the request is started we need to make sure that the array index stays below msb_count. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-26s390/jump label: improve and fix sanity checkHeiko Carstens
Fix the output of the jump label sanity check and also print the code pattern that is supposed to be written to the jump label. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-26s390/jump label: add missing jump_label_apply_nops() callHeiko Carstens
When modules are loaded we want to transform the compile time generated nops into runtime generated nops. Otherwise the jump label sanity check will detect invalid code when trying to patch code. Fixes this crash: Jump label code mismatch at __rds_conn_create+0x3c/0x720 Found: c0 04 00 00 00 01 Expected: c0 04 00 00 00 00 Kernel panic - not syncing: Corrupted kernel text CPU: 0 PID: 10 Comm: migration/0 Not tainted 3.19.0-01935-g006610f #14 Call Trace: <0000000000113260> show_trace+0xf8/0x158) <000000000011332a> show_stack+0x6a/0xe8 <000000000069fd64> dump_stack+0x7c/0xd8 <0000000000698d54> panic+0xe4/0x288 <00000000006984c6> jump_label_bug.isra.2+0xbe/0xc001 <000000000011200c> __jump_label_transform+0x94/0xc8 Reported-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2015-02-26OMAPDSS: fix regression with display sysfs filesTomi Valkeinen
omapdss's sysfs directories for displays used to have 'name' file, giving the name for the display. This file was later renamed to 'display_name' to avoid conflicts with i2c sysfs 'name' file. Looks like at least xserver-xorg-video-omap3 requires the 'name' file to be present. To fix the regression, this patch creates new kobjects for each display, allowing us to create sysfs directories for the displays. This way we have the whole directory for omapdss, and there will be no sysfs file clashes with the underlying display device's sysfs files. We can thus add the 'name' sysfs file back. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Tested-by: NeilBrown <neilb@suse.de>
2015-02-26video: fbdev: fix possible null dereferenceSudip Mukherjee
we were dereferencing edid first and the NULL check was after accessing that. now we are using edid only if we know that it is not NULL. Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-02-26video: ARM CLCD: Add missing error check for devm_kzallocKiran Padwal
This patch add a missing check on the return value of devm_kzalloc, which would cause a NULL pointer dereference in a OOM situation. Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-02-26ASoC: OMAP: mcbsp: Fix CLKX and CLKR pinmux when used as inputsThomas Niederprüm
This patch fixes faulty behaviour in a setup where the input clock for the SRG is fed through the CLKR/CLKX pin but the McBSP is configured to be master (SND_SOC_DAIFMT_CBS_CFS). In that case of course CLKR/CLKX must not be configured as output pin. Otherwise the input clock is messed up horribly. This patch makes it possible to use the CLKR/CLKX pin rather than CLKS to inject a reference clock in setups where McBSP is master and not both rx and tx are used. However for this to work it has to be ensured that set_dai_sysclk() is called after set_dai_fmt(). This was tested on a beagleboard-xm using McBSP1 to drive a i2s DAC through the tx lines (CLKX,FSX,DX). Using this patch the CLKR pin is used to inject an external reference clock. Signed-off-by: Thomas Niederprüm <niederp@physik.uni-kl.de> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-26spi: atmel: Fix interrupt setup for PDC transfersTorsten Fleischer
Additionally to the current DMA transfer the PDC allows to set up a next DMA transfer. This is useful for larger SPI transfers. The driver currently waits for ENDRX as end of the transfer. But ENDRX is set when the current DMA transfer is done (RCR = 0), i.e. it doesn't include the next DMA transfer. Thus a subsequent SPI transfer could be started although there is currently a transfer in progress. This can cause invalid accesses to the SPI slave devices and to SPI transfer errors. This issue has been observed on a hardware with a M25P128 SPI NOR flash. So instead of ENDRX we should wait for RXBUFF. This flag is set if there is no more DMA transfer in progress (RCR = RNCR = 0). Signed-off-by: Torsten Fleischer <torfl6749@gmail.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2015-02-26spi: dw: revisit FIFO size detection againAndy Shevchenko
The commit d297933cc7fc (spi: dw: Fix detecting FIFO depth) tries to fix the logic of the FIFO detection based on the description on the comments. However, there is a slight difference between numbers in TX Level and TX FIFO size. So, by specification the FIFO size would be in a range 2-256 bytes. From TX Level prospective it means we can set threshold in the range 0-(FIFO size - 1) bytes. Hence there are currently two issues: a) FIFO size 2 bytes is actually skipped since TX Level is 1 bit and could be either 0 or 1 byte; b) FIFO size is incorrectly decreased by 1 which already done by meaning of TX Level register. This patch fixes it eventually right. Fixes: d297933cc7fc (spi: dw: Fix detecting FIFO depth) Reviewed-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org> Cc: stable@vger.kernel.org
2015-02-26ASoC: rt5677: Correct the routing paths of that after IF1/2 DACx MuxOder Chiou
The patch corrects the routing paths of that after IF1/2 DACx Mux Signed-off-by: Oder Chiou <oder_chiou@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2015-02-25Input: mma8450 - add parent deviceStefan Sauer
Add the parent device so that udev can show the full hierarchy. This avoids the device showing up under /devices/virtual/input instead of the i2c bus it is actually attached to. Signed-off-by: Stefan Sauer <ensonic@google.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-02-26genirq / PM: better describe IRQF_NO_SUSPEND semanticsMark Rutland
The IRQF_NO_SUSPEND flag is intended to be used for interrupts required to be enabled during the suspend-resume cycle. This mostly consists of IPIs and timer interrupts, potentially including chained irqchip interrupts if these are necessary to handle timers or IPIs. If an interrupt does not fall into one of the aforementioned categories, requesting it with IRQF_NO_SUSPEND is likely incorrect. Using IRQF_NO_SUSPEND does not guarantee that the interrupt can wake the system from a suspended state. For an interrupt to be able to trigger a wakeup, it may be necessary to program various components of the system. In these cases it is necessary to use {enable,disabled}_irq_wake. Unfortunately, several drivers assume that IRQF_NO_SUSPEND ensures that an IRQ can wake up the system, and the documentation can be read ambiguously w.r.t. this property. This patch updates the documentation regarding IRQF_NO_SUSPEND to make this caveat explicit, hopefully making future misuse rarer. Cleanup of existing misuse will occur as part of later patch series. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-02-25Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-next Jeff Kirsher says: ==================== Intel Wired LAN Driver Updates 2015-02-24 This series contains updates to i40e and i40evf only, which bumps their versions to i40e 1.2.9 and i40evf 1.2.3. Paul fixes i40e_debug_aq() for big endian machines by adding the appropriate LExx_TO_CPU wrappers. Catherine adds a requested speed variable to the link_status to store the last speeds we requested from the firmware and use the advertised speed settings in get_settings in ethtool now that we have it. Due to the new code addition, she also refactors get_settings to improve readability and to accommodate some of the longer lines of code by adding two functions i40e_get_settings_link_up() and i40e_get_settings_link_down(). Carolyn adds a struct to the VSI struct to keep track of RXNFC settings done via ethtool. Adds more information to the interrupt vector names, specifically to the VF misc vector name so that we can distinguish between all the interrupts. Ashish enables the i40evf driver to enable debug prints via ethtool. Mitch updates i40e to enable packet split only when IOMMU is in use, since it shows a distinct advantage over the single-buffer path because it minimizes DMA mapping and unmapping. Also adds the receive routine in use to the features log message to be able to print the receive packet split status. Greg adds the ability to get, set and commit permanently the NPAR partition BW configuration through configfs. Enables an application to query the i40e driver's private flags to get the status of NPAR enablement via ethtool. Neerav adds support for bridge offload ndo_ops getlink and setlink to enable bridge hardware mode as per the mode set via IFLA_BRIDGE_MODE. The support is only enabled in the case of a PF VSI and not available for any other VSI type. Kevin fixes i40e by ensuring the BUF and FLAG_RD flags are set for indirect admin queue command. Vasu updates the driver to setup FCoE netdev device type as "fcoe", so that it shows up in sysfs as FCoE device. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25net: dsa: Introduce dsa_is_port_initializedGuenter Roeck
To avoid race conditions when using the ds->ports[] array, we need to check if the accessed port has been initialized. Introduce and use helper function dsa_is_port_initialized for that purpose and use it where needed. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25Merge branch 'sf2_hwbridge'David S. Miller
Florian Fainelli says: ==================== net: dsa: integration with SWITCHDEV for HW bridging This patch set provides the DSA and SWITCHDEV integration bits together and modifies the bcm_sf2 driver accordingly such that it works properly with HW bridging. Changes in v3: - add back the null pointer check in dsa_slave_br_port_mask from Guenter - slightly rework patch 1 commit message not to mention the function name we add in patch 2 Changes in v2: - avoid a race condition in how DSA network devices are created, patch from Guenter Roeck - provide a consistent and work STP state once a port leaves the bridge - retain a bridge device pointer to properly flag port/bridge membership - properly flush the ARL (Address Resolution Logic) in bcm_sf2.c - properly retain port membership when individually bringing devices up/down while they are members of a bridge We discussed on the mailing-list the possibility of standardizing a "fdb_flush" operation for DSA switch drivers, looking at the Marvell and Broadcom switches, I am not convinced this is practical or diserable as the terminologies vary here, but there is nothing preventing us from doing it later. Many thanks to Guenter and Andrew for both testing and providing feedback. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25net: dsa: bcm_sf2: add HW bridging supportFlorian Fainelli
Implement the bridge join, leave and set_stp callbacks by making that we do the following: - when a port joins the bridge, all existing ports in the bridge get their VLAN control register updated with that joining port - the joining port is including all existing bridge ports in its own VLAN control register The leave operation is fairly similar, special care must be taken to make sure that port leaving the bridging is not removing itself from its own VLAN control register. Since the various BR_* states apply directly to our HW semantics, we just need to translate these constants into their corresponding HW settings, and voila! We make sure to trigger a fast-ageing process for ports that are joining/leaving the bridge and transition from incompatible states, this is equivalent to triggering an ARL flush for that port. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25net: dsa: integrate with SWITCHDEV for HW bridgingFlorian Fainelli
In order to support bridging offloads in DSA switch drivers, select NET_SWITCHDEV to get access to the port_stp_update and parent_get_id NDOs that we are required to implement. To facilitate the integratation at the DSA driver level, we implement 3 types of operations: - port_join_bridge - port_leave_bridge - port_stp_update DSA will resolve which switch ports that are currently bridge port members as some Switch hardware/drivers need to know about that to limit the register programming to just the relevant registers (especially for slow MDIO buses). We also take care of setting the correct STP state when slave network devices are brought up/down while being bridge members. Finally, when a port is leaving the bridge, we make sure we set in BR_STATE_FORWARDING state, otherwise the bridge layer would leave it disabled as a result of having left the bridge. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25net: dsa: Ensure that port array elements are initialized before being usedGuenter Roeck
A network device notifier can be called for one or more of the created slave devices before all slave devices have been registered. This can result in a mismatch between ds->phys_port_mask and the registered devices by the time the call is made, and it can result in a slave device being added to a bridge before its entry in ds->ports[] has been initialized. Rework the initialization code to initialize entries in ds->ports[] in dsa_slave_create. With this change, dsa_slave_create no longer needs to return slave_dev but can return an error code instead. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25MAINTAINERS: update my email addressAndy Gospodarek
I have been signing off on patches with this address so I'll change it. Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25amd-xgbe-phy: PHY KX/KR mode differencesTom Lendacky
The PHY requires different settings for the Decision Feedback Analyzer (DFE) when running in KX mode vs. KR mode. Update the code to change these settings when changing modes in order to provide a more stable link. Additionally, adjust the 10GbE PQ skew default setting to a more sane value. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-25drm/radeon: only enable DP audio if the monitor supports itAlex Deucher
We were enabling DP secondary streams even if the monitor didn't support them. Fixes display problems on some DP monitors. Tested-by: Jim Boz <jim876@xs4all.nl> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-02-25drm/radeon: fix atom aux payload size check for writes (v2)Alex Deucher
The atom aux param interface only supports 4 bits for the total write transfer size (header + payload). This limits us to 12 bytes of payload rather than 16. Add a check for this. Reads are not affected. v2: switch to WARN_ON_ONCE Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-02-25drm/radeon: fix 1 RB harvest config setup for TN/RLAlex Deucher
The logic was reversed from what the hw actually exposed. Fixes graphics corruption in certain harvest configurations. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
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