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2017-05-31ixgbe: initialize u64_stats_sync structures early at ixgbe_probeLiwei Song1-4/+4
Fix the following CallTrace: INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 71 PID: 1 Comm: swapper/0 Not tainted 4.8.8-WR9.0.0.1_standard #11 Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS GRNDSDP1.86B.0036.R05.1407140519 07/14/2014 00200086 00200086 eb5e1ab8 c144dd70 00000000 00000000 eb5e1af8 c10af89a c1d23de4 eb5e1af8 00000009 eb5d8600 eb5d8638 eb5e1af8 c10b14d8 00000009 0000000a c1d32911 00000000 00000000 e44c826c eb5d8000 eb5e1b74 c10b214e Call Trace: [<c144dd70>] dump_stack+0x5f/0x8f [<c10af89a>] register_lock_class+0x25a/0x4c0 [<c10b14d8>] ? check_irq_usage+0x88/0xc0 [<c10b214e>] __lock_acquire+0x5e/0x17a0 [<c1abdb9b>] ? _raw_spin_unlock_irqrestore+0x3b/0x70 [<c10cf14a>] ? rcu_read_lock_sched_held+0x8a/0x90 [<c10b3c5f>] lock_acquire+0x9f/0x1f0 [<c1922dcf>] ? dev_get_stats+0x5f/0x110 [<c176e6b3>] ixgbe_get_stats64+0x113/0x320 [<c1922dcf>] ? dev_get_stats+0x5f/0x110 [<c1922dcf>] dev_get_stats+0x5f/0x110 [<c1ab5415>] rtnl_fill_stats+0x40/0x105 [<c193dd45>] rtnl_fill_ifinfo+0x4c5/0xd20 [<c11c5115>] ? __kmalloc_node_track_caller+0x1a5/0x410 [<c1917487>] ? __kmalloc_reserve.isra.42+0x27/0x80 [<c191754f>] ? __alloc_skb+0x6f/0x270 [<c1942291>] rtmsg_ifinfo_build_skb+0x71/0xd0 [<c194230a>] rtmsg_ifinfo.part.23+0x1a/0x50 [<c1923dad>] ? call_netdevice_notifiers_info+0x2d/0x60 [<c194236b>] rtmsg_ifinfo+0x2b/0x40 [<c192f997>] register_netdevice+0x3d7/0x4d0 [<c192faa7>] register_netdev+0x17/0x30 [<c177b83d>] ixgbe_probe+0x118d/0x1610 [<c1498202>] local_pci_probe+0x32/0x80 [<c1498172>] ? pci_match_device+0xd2/0x100 [<c14991e0>] pci_device_probe+0xc0/0x110 [<c1652cc5>] driver_probe_device+0x1c5/0x280 [<c1498172>] ? pci_match_device+0xd2/0x100 [<c1652e09>] __driver_attach+0x89/0x90 [<c1652d80>] ? driver_probe_device+0x280/0x280 [<c165114f>] bus_for_each_dev+0x4f/0x80 [<c165269e>] driver_attach+0x1e/0x20 [<c1652d80>] ? driver_probe_device+0x280/0x280 [<c1652317>] bus_add_driver+0x1a7/0x220 [<c1653a79>] driver_register+0x59/0xe0 [<c1f897b8>] ? igb_init_module+0x49/0x49 [<c1497b2a>] __pci_register_driver+0x4a/0x50 [<c1f8985d>] ixgbe_init_module+0xa5/0xc4 [<c1000485>] do_one_initcall+0x35/0x150 [<c107e818>] ? parameq+0x18/0x70 [<c1f395d8>] ? repair_env_string+0x12/0x51 [<c107ead0>] ? parse_args+0x260/0x3b0 [<c1074f73>] ? __usermodehelper_set_disable_depth+0x43/0x50 [<c1f39e90>] kernel_init_freeable+0x19b/0x267 [<c1f395c6>] ? set_debug_rodata+0xf/0xf [<c10b1e7b>] ? trace_hardirqs_on+0xb/0x10 [<c1abdc02>] ? _raw_spin_unlock_irq+0x32/0x50 [<c1085f0b>] ? finish_task_switch+0xab/0x1f0 [<c1085ec9>] ? finish_task_switch+0x69/0x1f0 [<c1ab6a30>] kernel_init+0x10/0x110 [<c108bd65>] ? schedule_tail+0x25/0x80 [<c1abe422>] ret_from_kernel_thread+0xe/0x24 [<c1ab6a20>] ? rest_init+0x130/0x130 This CallTrace occurred on 32-bit kernel with CONFIG_PROVE_LOCKING enabled. This happens at ixgbe driver probe hardware stage, when comes to ixgbe_get_stats64, the seqcount/seqlock still not initialize, although this was initialize in TX/RX resources setup routin, but it was too late, then lockdep give this Warning. To fix this, move the u64_stats_init function to driver probe stage, which before we get the status of seqcount and after the RX/TX ring was finished init. Signed-off-by: Liwei Song <liwei.song@windriver.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
2017-05-31ixgbe/ixgbevf: Enables TSO for MPLS encapsulated packetsScott Peterson2-4/+20
This patch advertises TSO & GSO features in netdev->mpls_features. In ixgbe(vf)_tso() where we set up segmentation offload, the IP header will be the inner network header when eth_p_mpls() indicates the Ethernet protocol is MPLS (UC or MC). Suggested-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Scott Peterson <scott.d.peterson@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31i40e: Check for memory allocation failureChristophe Jaillet1-0/+2
If 'kzalloc' fails, a NULL pointer will be dereferenced. Return -ENOMEM instead. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31i40e: check for Tx timestamp timeouts during watchdogJacob Keller4-0/+34
The i40e driver has logic to handle only one Tx timestamp at a time, using a state bit lock to avoid multiple requests at once. It may be possible, if incredibly unlikely, that a Tx timestamp event is requested but never completes. Since we use an interrupt scheme to determine when the Tx timestamp occurred we would never clear the state bit in this case. Add an i40e_ptp_tx_hang() function similar to the already existing i40e_ptp_rx_hang() function. This function runs in the watchdog routine and makes sure we eventually recover from this case instead of permanently disabling Tx timestamps. Note: there is no currently known way to cause this without hacking the driver code to force it. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31i40e: use pf data structure directly in i40e_ptp_rx_hangJacob Keller3-4/+4
There's no reason to pass a *vsi pointer if we already have the *pf pointer in the only location where we call this function. Lets update the signature and directly pass the *pf data structure pointer. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31i40e: add statistic indicating number of skipped Tx timestampsJacob Keller3-0/+3
The i40e driver can only handle one Tx timestamp request at a time. This means it is possible for an application timestamp request to be ignored. There is no easy way for an administrator to determine if this occurred. Add a new statistic which tracks this, tx_hwtstamp_skipped. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31i40e: avoid permanent lock of *_PTP_TX_IN_PROGRESSJacob Keller1-6/+20
The i40e driver uses a bit lock to indicate when a Tx timestamp is in progress to avoid attempting to timestamp multiple packets at once. This is required because hardware only has registers to handle one request at a time. There is a corner case where we failed to cleanup the bit lock after a failed transmit. This can potentially result in a state bit being locked forever. Add some cleanup code to i40e_xmit_frame_ring to check and make sure we cleanup incase of these failures. We also modify i40e_tx_map to return an error code indication DMA failure. Reported-by: Reported-by: David Mirabito <davidm@metamako.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31i40e: fix race condition with PTP_TX_IN_PROGRESS bitsJacob Keller1-3/+11
Hardware related to the i40e driver has a limitation on Tx PTP packets. This requires us to limit the driver to timestamping a single packet at once. This is done using a state bitlock which enforces that only one timestamp request is honored at a time. Unfortunately this suffers from a race condition. The bit lock is not cleared until after skb_tstamp_tx() is called notifying applications of a new Tx timestamp. Even a well behaved application sending only one packet at a time and waiting for a response can wake up and send a new timestamped packet request before the bit lock is cleared. This results in needlessly dropping some Tx timestamp requests. We can fix this by unlocking the state bit as soon as we read the Timestamp register, as this is the first point at which it is safe to timestamp another packet. To avoid issues with the skb pointer, we'll use a copy of the pointer and set the global variable in the driver structure to NULL first. This ensures that the next timestamp request does not modify our local copy of the skb pointer. Now, a well behaved application which has at most one outstanding timestamp request will not accidentally race with the driver unlock bit. Obviously an application attempting to timestamp faster than one request at a time will have some timestamp requests skipped. Unfortunately there is nothing we can do about that. Reported-by: David Mirabito <davidm@metamako.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31i40evf: disable unused flagsJesse Brandeburg2-4/+2
The i40evf hardware doesn't have any way to ever report FCoE enabled so just force the code to always report FCoE is disabled, remove the unused defines, and mark the OP as reserved. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31i40evf: fix merge error in older patchJesse Brandeburg1-0/+1
This patch fixes a missing line that was missed while merging, which results in a driver feature in the VF not working to enable RSS as a negotiated feature. Fixes: 43a3d9ba34c9c ("i40evf: Allow PF driver to configure RSS") Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31i40evf: fix duplicate linesJesse Brandeburg1-2/+0
This removes two duplicate lines that snuck into the code somehow. Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2017-05-31bnxt_en: Fix xmit_more with BQL.Michael Chan1-1/+1
We need to write the doorbell if BQL has stopped the queue and skb->xmit_more is set. Otherwise it is possible for the tx queue to rot and cause tx timeout. Fixes: 4d172f21cefe ("bnxt_en: Implement xmit_more.") Suggested-by: Yuval Mintz <yuval.mintz@cavium.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31Merge branch 'bnxt_en-Misc-updates-for-net-next'David S. Miller6-33/+149
Michael Chan says: ==================== bnxt_en: Misc. updates for net-next. The 1st 2 patches add short firmware message support for new VF devices. The 3rd patch adds a pci shutdown callback for the RDMA driver for proper shutdown. The next 3 patches improve the doorbell operations by elimiating the double doorbell workaround on newer chips, and by adding xmit_more support. The last patch adds a parameter to bnxt_set_dflt_rings(). ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31bnxt_en: Pass in sh parameter to bnxt_set_dflt_rings().Michael Chan1-3/+2
In the existing code, the local variable sh is hardcoded to true to calculate default rings for shared ring configuration. It is better to have the caller determine the value of sh. Reported-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31bnxt_en: Implement xmit_more.Michael Chan1-1/+5
Do not write the TX doorbell if skb->xmit_more is set unless the TX queue is full. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31bnxt_en: Optimize doorbell write operations for newer chips.Michael Chan4-21/+23
Older chips require the doorbells to be written twice, but newer chips do not. Add a new common function bnxt_db_write() to write all doorbells appropriately depending on the chip. Eliminating the extra doorbell on newer chips has a significant performance improvement on pktgen. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31bnxt_en: Add additional chip ID definitions.Michael Chan2-8/+27
Add additional chip definitions and macros for all supported chips. Add a new macro BNXT_CHIP_P4_PLUS for the newer generation of chips and use the macro to properly determine the features supported by these newer chips. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31bnxt_en: Add a callback to inform RDMA driver during PCI shutdown.Michael Chan3-0/+22
When bnxt_en gets a PCI shutdown call, we need to have a new callback to inform the RDMA driver to do proper shutdown and removal. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31bnxt_en: Add PCI IDs for BCM57454 VF devices.Deepak Khungar1-0/+2
Signed-off-by: Deepak Khungar <deepak.khungar@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31bnxt_en: Support for Short Firmware MessageDeepak Khungar2-1/+69
The new short message format is used on the new BCM57454 VFs. Each firmware message is a fixed 16-byte message sent using the standard firmware communication channel. The short message has a DMA address pointing to the legacy long firmware message. Signed-off-by: Deepak Khungar <deepak.khungar@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31net: dsa: b53: remove unused dev argumentVivien Didelot1-5/+3
The port net device passed to b53_fdb_copy is not used. Remove it. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-31net: dsa: remove dsa_port_is_bridgedVivien Didelot1-9/+4
The helper is only used once and makes the code more complicated that it should. Remove it and reorganize the variables so that it fits on 80 columns. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30cxgb4: Fix netdev_features flagArjun Vynipadath1-0/+11
GRO is not supported by Chelsio HW when rx_csum is disabled. Update the netdev features flag when rx_csum is modified. Signed-off-by: Arjun Vynipadath <arjun@chelsio.com> Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30cxgb4: FW upgrade fixesArjun Vynipadath1-3/+18
Disable FW_OK flag while flashing Firmware. This will help to fix any potential mailbox timeouts during Firmware flash. Grab new devlog parameters after Firmware restart. When we FLASH new Firmware onto an adapter, the new Firmware may have the Firmware Device Log located at a different memory address or have a different size for it. Signed-off-by: Arjun Vynipadath <arjun@chelsio.com> Signed-off-by: Casey Leedom <leedom@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30cxgb4: add new T5 pci device idGanesh Goudar1-0/+1
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30cxgb4: keep carrier off before registering netdevSurendra Mobiya1-0/+2
Mark carrier off before registering netdev to ensure that vlan device picks up the correct state of the carrier Signed-off-by: Surendra Mobiya <surendra@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30Merge branch 'net-qualcomm-add-QCA7000-UART-driver'David S. Miller13-119/+632
Stefan Wahren says: ==================== net: qualcomm: add QCA7000 UART driver The Qualcomm QCA7000 HomePlug GreenPHY supports two interfaces: UART and SPI. This patch series adds the missing support for UART. This driver based on the Qualcomm code [1], but contains some changes: * use random MAC address per default * use net_device_stats from device * share frame decoding between SPI and UART driver * improve error handling * reimplement tty_wakeup with work queue (based on slcan) * use new serial device bus instead of ldisc The patches 1 - 3 are just for clean up and are not related to the UART support. Patch 4 adds SET_NETDEV_DEV() to qca_spi. Patches 5 - 16 prepare the existing QCA7000 code for UART support. The last patch contains the new driver. The code itself has been tested on a Freescale i.MX28 board and a Raspberry Pi Zero. Changes in v8: * add necessary header includes to qca_7k.c in order to reflect dependencies Changes in v7: * fix race between tx workqueue and device deregistration (reported by Lino) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qualcomm: add QCA7000 UART driverStefan Wahren4-0/+447
This patch adds the Ethernet over UART driver for the Qualcomm QCA7000 HomePlug GreenPHY. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Lino Sanfilippo <LinoSanfilippo@gmx.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30dt-bindings: qca7000: append UART interface to bindingStefan Wahren1-0/+32
This merges the serdev binding for the QCA7000 UART driver (Ethernet over UART) into the existing document. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30dt-bindings: slave-device: add current-speed propertyStefan Wahren1-0/+9
This adds a new DT property to define the current baud rate of the slave device. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30dt-bindings: qca7000: rename bindingStefan Wahren1-0/+0
Before we can merge the QCA7000 UART binding the document needs to be renamed. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30dt-bindings: qca7000-spi: Rework bindingStefan Wahren1-20/+29
In preparation for the QCA7000 UART binding rework the binding document. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qualcomm: make qca_7k_common a separate kernel moduleStefan Wahren3-3/+20
In order to share common functions between QCA7000 SPI and UART protocol driver the qca_7k_common needs to be a separate kernel module. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qualcomm: prepare frame decoding for UART driverStefan Wahren3-9/+13
Unfortunately the frame format is not exactly identical between SPI and UART. In case of SPI there is an additional HW length at the beginning. So store the initial state to make the decoding state machine more flexible and easy to extend for UART support. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qualcomm: rename qca_framing.c to qca_7k_common.cStefan Wahren5-4/+4
As preparation for the upcoming UART driver we need a module which contains common functions for both interfaces. The module qca_framing is a good candidate but renaming to qca_7k_common would make it clear. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qca_spi: Clarify MODULE_DESCRIPTIONStefan Wahren1-1/+1
Since this driver is specific to the QCA7000, we should make the module description more precisely. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qualcomm: move qcaspi_tx_cmd to qca_spi.cStefan Wahren3-25/+24
The function qcaspi_tx_cmd() is only called from qca_spi.c. So we better move it there. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qca_spi: remove QCASPI_MTUStefan Wahren1-2/+1
There is no need for an additional MTU define. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qualcomm: Improve readability of length definesStefan Wahren3-11/+11
In order to avoid mixing things up, make the MTU and frame length defines easier to read. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qualcomm: use net_device_ops instead of direct callStefan Wahren3-7/+5
There is no need to export qcaspi_netdev_open and qcaspi_netdev_close because they are also accessible via the net_device_ops. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qca_spi: Use SET_NETDEV_DEV()Stefan Wahren1-0/+1
Use SET_NETDEV_DEV() in qca_spi to create the "/sys/class/net/<if>/device" symlink. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qca_7k: Use BIT macroStefan Wahren1-7/+7
Use the BIT macro for the CONFIG and INT register values. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qca_framing: use u16 for frame offsetStefan Wahren1-1/+1
It doesn't make sense to use a signed variable for offset here, so fix it up. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: qualcomm: qca_7k: clean up header includesStefan Wahren1-4/+2
Currently the includes doesn't reflect the dependencies. So fix this up by removing all unnecessary entries and add the necessary ones explicit. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30Merge branch 'net-phy-Support-managed-Cortina-phys'David S. Miller4-0/+145
Bogdan Purcareata says: ==================== net: phy: Support managed Cortina phys So far, the Cortina family phys (CS4340 in this particular case) are only supported in fixed link mode (via fixed_phy_register). The generic 10G phy driver does not work well with the phylib state machine, when the phy is registered via of_phy_connect. This prohibits the user from describing the phy nodes in the device tree. In order to support this scenario, and to properly describe the board device tree, add a minimal Cortina driver that reads the status from the right register. With the generic 10G C45 driver, the kernel will print messages like: [ 0.226521] mdio_bus 8b96000: Error while reading PHY16 reg at 1.6 [ 0.232780] mdio_bus 8b96000: Error while reading PHY16 reg at 1.5 v3 -> v4: - Add trademark info. - Minor documentation entry consistency nit. v2 -> v3: - Add documentation entry. v1 -> v2: - Change approach for getting the phy_id from hacking get_phy_c45_ids to describing the device in the device tree via ethernet-phy-id. More patch version changes per individual patches. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30dt-bindings: net: Add Cortina device tree bindingsBogdan Purcareata1-0/+21
Add device tree description info for Cortina 10G phy devices. Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30net: phy: Add Cortina CS4340 driverBogdan Purcareata3-0/+124
Add basic support for Cortina PHY drivers. Support only CS4340 for now. The phys are not compatible with IEEE 802.3 clause 22/45 registers. Implement proper read_status support. The generic 10G phy driver causes bus register access errors. The driver should be described using the "ethernet-phy-id" device tree compatible. Signed-off-by: Bogdan Purcareata <bogdan.purcareata@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30Merge branch 'qed-DCBx-and-Attentions-series'David S. Miller11-1343/+593
Yuval Mintz says: ==================== qed: DCBx and Attentions series The series contains 2 major components [& some odd bits]: - The first 3 patches are DCBx-related, containg missing bits in the implementation, correcting existing API and removing code no longer necessary. - Most of the remaining patches are interrupt/hw-attention related, adding some differeneces relating to QL41xxx and QL45xxx differences. While at it, they also remove a large chunk of unnecessary structure definitions. The series also contain a patch [#10] that was accidently missing from a previous series. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30qed: Cache alignemnt padding to match hostMintz, Yuval2-2/+14
Improve PCI performance by adjusting padding sizes to match those of the host machine's cacheline. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-05-30qed: Mask parities after occuranceMintz, Yuval1-13/+23
Parities might exhibit a flood behavior since we re-enable the attention line without preventing the parity from re-triggering the assertion. Mask the source in AEU until the parity would be handled. Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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