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* net: mvpp2: simplify the Tx desc set DMA logicAntoine Tenart2017-11-011-26/+13
| | | | | | | | | | | | | | | Two functions were always used to set the DMA addresses in Tx descriptors, because this address is split into a base+offset in the descriptors. A mask was used to come up with the base and offset addresses and two functions were called, mvpp2_txdesc_dma_addr_set() and mvpp2_txdesc_offset_set(). This patch moves the base+offset calculation logic to mvpp2_txdesc_dma_addr_set(), and removes mvpp2_txdesc_offset_set() to simplify things. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mvpp2: use the aggr txq size define everywhereAntoine Tenart2017-11-011-3/+3
| | | | | | | | | Cosmetic patch using the MVPP2_AGGR_TXQ_SIZE everywhere instead of the size field of aggr_txq, as the size never change and is always equal to the MVPP2_AGGR_TXQ_SIZE define. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mvpp2: limit TSO segments and use stop/wake thresholdsAntoine Tenart2017-11-011-2/+16
| | | | | | | | | | | | Too many TSO descriptors can be required for the default queue size, when using small MSS values for example. Prevent this by adding a maximum number of allowed TSO segments (300). In addition set a stop and a wake thresholds to stop the queue when there's no room for a 1 "worst case scenario skb". Wake up the queue when the number of descriptors is low enough. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mvpp2: initialize the RSS tablesAntoine Tenart2017-11-011-0/+50
| | | | | | | | | | This patch initialize the RSS tables to evenly (depending on the packets RSS hashes) distribute the packets across port Rx queues. This helps to handle packets on different CPUs to improve performances, as more queues will be used in parallel. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mvpp2: initialize the Tx FIFO sizeAntoine Tenart2017-11-011-4/+21
| | | | | | | | | So far only the Rx FIFO size was initialized. For PPv2.2 the Tx FIFO size can be set as well. This patch initializes the Tx FIFO size for PPv2.2 controllers to 3K. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mvpp2: set the Rx FIFO size depending on the port speeds for PPv2.2Antoine Tenart2017-11-011-6/+46
| | | | | | | | | The Rx FIFO size was set to the same value for all ports. This patch sets it depending on the maximum speed a given port can handle. This is only working for PPv2.2. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2017-10-301-13/+22
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several conflicts here. NFP driver bug fix adding nfp_netdev_is_nfp_repr() check to nfp_fl_output() needed some adjustments because the code block is in an else block now. Parallel additions to net/pkt_cls.h and net/sch_generic.h A bug fix in __tcp_retransmit_skb() conflicted with some of the rbtree changes in net-next. The tc action RCU callback fixes in 'net' had some overlap with some of the recent tcf_block reworking. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: do not sleep in set_rx_modeAntoine Tenart2017-10-261-2/+2
| | | | | | | | | | | | | | | | | | This patch replaces GFP_KERNEL by GFP_ATOMIC to avoid sleeping in the ndo_set_rx_mode() call which is called with BH disabled. Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: fix invalid parameters order when calling the tcam initAntoine Tenart2017-10-261-2/+2
| | | | | | | | | | | | | | | | | | | | When calling mvpp2_prs_mac_multi_set() from mvpp2_prs_mac_init(), two parameters (the port index and the table index) are inverted. Fixes this. Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: fix typo in the tcam setupAntoine Tenart2017-10-261-1/+1
| | | | | | | | | | | | | | | | | | This patch fixes a typo in the mvpp2_prs_tcam_data_cmp() function, as the shift value is inverted with the data. Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: do not call txq_done from the Tx path when Tx irqs are usedAntoine Tenart2017-10-241-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | When Tx IRQs are used, txq_bufs_free() can be called from both the Tx path and from NAPI poll(). This led to CPU stalls as if these two tasks (Tx and Poll) are scheduled on two CPUs at the same time, DMA unmapping operations are done on the same txq buffers. This patch adds a check not to call txq_done() from the Tx path if Tx interrupts are used as it does not make sense to do so. Fixes: edc660fa09e2 ("net: mvpp2: replace TX coalescing interrupts with hrtimer") Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: do not unmap TSO headers buffersAntoine Tenart2017-10-241-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | The TSO header buffers are coming from a per cpu pool and should not be unmapped as they are reused. The PPv2 driver was unmapping all descriptors buffers unconditionally. This patch fixes this by checking the buffers dma addresses before unmapping them, and by not unmapping those who are located in the TSO header pool. Fixes: 186cd4d4e414 ("net: mvpp2: software tso support") Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: fix TSO headers allocation and managementYan Markman2017-10-241-3/+3
| | | | | | | | | | | | | | | | | | | | | | TSO headers are managed with txq index and therefore should be aligned with the txq size, not with the aggregated txq size. Fixes: 186cd4d4e414 ("net: mvpp2: software tso support") Reported-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Yan Markman <ymarkman@marvell.com> Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2017-10-051-11/+35
|\ \ | |/ | | | | | | | | Just simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: Fix clock resource by adding an optional bus clockGregory CLEMENT2017-10-011-0/+15
| | | | | | | | | | | | | | | | | | | | | | On Armada 7K/8K we need to explicitly enable the bus clock. The bus clock is optional because not all the SoCs need them but at least for Armada 7K/8K it is actually mandatory. The binding documentation is updating accordingly. Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: do not select the internal source clockAntoine Tenart2017-09-281-2/+1
| | | | | | | | | | | | | | | | | | | | | | This patch stops the internal MAC Tx clock from being enabled as the internal clock isn't used. The definition used for the bit controlling this behaviour is renamed as well as it was wrongly named (bit 4 of GMAC_CTRL_2_REG). Fixes: 3919357fb0bb ("net: mvpp2: initialize the GMAC when using a port") Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: fix port list indexingYan Markman2017-09-281-3/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The private port_list array has a list of pointers to mvpp2_port instances. This list is allocated given the number of ports enabled in the device tree, but the pointers are set using the port-id property. If on a single port is enabled, the port_list array will be of size 1, but when registering the port, if its id is not 0 the driver will crash. Other crashes were encountered in various situations. This fixes the issue by using an index not equal to the value of the port-id property. Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Yan Markman <ymarkman@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: fix parsing fragmentation detectionStefan Chulski2017-09-281-6/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | Parsing fragmentation detection failed due to wrong configured parser TCAM entry's. Some traffic was marked as fragmented in RX descriptor, even it wasn't IP fragmented. The hardware also failed to calculate checksums which lead to use software checksum and caused performance degradation. Fixes: 3f518509dedc ("ethernet: Add new driver for Marvell Armada 375 network unit") Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Stefan Chulski <stefanc@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | drivers: net: pxa168: use setup_timer() helper.Allen Pais2017-09-211-3/+2
| | | | | | | | | | | | | | | | Use setup_timer function instead of initializing timer with the function and data fields. Signed-off-by: Allen Pais <allen.lkml@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: remove useless gotoAntoine Tenart2017-09-191-1/+0
|/ | | | | | | | Remove a goto in the PPv2 tx function which jumps to the next line anyway. This is a cosmetic commit. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* dmi: Mark all struct dmi_system_id instances constChristoph Hellwig2017-09-141-1/+1
| | | | | | | | | | | | | ... and __initconst if applicable. Based on similar work for an older kernel in the Grsecurity patch. [JD: fix toshiba-wmi build] [JD: add htcpen] [JD: move __initconst where checkscript wants it] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jean Delvare <jdelvare@suse.de>
* net: mvpp2: fallback using h/w and random mac if the dt one isn't validAntoine Tenart2017-09-031-11/+12
| | | | | | | | | | When using a mac address described in the device tree, a check is made to see if it is valid. When it's not, no fallback is defined. This patches tries to get the mac address from h/w (or use a random one if the h/w one isn't valid) when the dt mac address isn't valid. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mvpp2: fix use of the random mac address for PPv2.2Antoine Tenart2017-09-031-7/+9
| | | | | | | | | | | | | The MAC retrieval logic is using a variable to store an h/w stored mac address and checks this mac against invalid ones before using it. But the mac address is only read from h/w when using PPv2.1. So when using PPv2.2 it defaults to its init state. This patches fixes the logic to only check if the h/w mac is valid when actually retrieving a mac from h/w. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: mvpp2: move the mac retrieval/copy logic into its own functionAntoine Tenart2017-09-031-18/+27
| | | | | | | | | The MAC retrieval has a quite complicated logic (which is broken). Moves it to its own function to prepare for patches fixing its logic, so that reviews are easier. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller2017-09-011-1/+1
|\ | | | | | | | | | | Three cases of simple overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: mvpp2: fix the mac address used when using PPv2.2Antoine Tenart2017-08-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The mac address is only retrieved from h/w when using PPv2.1. Otherwise the variable holding it is still checked and used if it contains a valid value. As the variable isn't initialized to an invalid mac address value, we end up with random mac addresses which can be the same for all the ports handled by this PPv2 driver. Fixes this by initializing the h/w mac address variable to {0}, which is an invalid mac address value. This way the random assignation fallback is called and all ports end up with their own addresses. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Fixes: 2697582144dd ("net: mvpp2: handle misc PPv2.1/PPv2.2 differences") Signed-off-by: David S. Miller <davem@davemloft.net>
* | mvneta: Driver and hardware supports IPv6 offload, so enable itAndrew Pilloud2017-09-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | The mvneta driver and hardware supports IPv6 offload, however it isn't enabled. Set the NETIF_F_IPV6_CSUM feature to inform the network layer that this driver can offload IPV6 TCP and UDP checksums. This change has been tested on an Armada 370 and the feature support confirmed with several device datasheets including the Armada XP and Armada 3700. Signed-off-by: Andrew Pilloud <andrewpilloud@igneoussystems.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: use the GoP interrupt for link status changesAntoine Tenart2017-09-011-5/+172
| | | | | | | | | | | | | | | | | | | | | | | | This patch adds the GoP link interrupt support for when a port isn't connected to a PHY. Because of this the phylib callback is never called and the link status management isn't done. This patch use the GoP link interrupt in such cases to still have a minimal link management. Without this patch ports not connected to a PHY cannot work. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Tested-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: make the phy optionalAntoine Tenart2017-09-011-8/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is not necessarily a PHY between the GoP and the physical port. However, the driver currently makes the "phy" property mandatory, contrary to what is stated in the device tree bindings. This patch makes the PHY optional, and aligns the PPv2 driver on its device tree documentation. However if a PHY is provided, the GoP link interrupt won't be used. With this patch switches directly connected to the serdes lanes and SFP ports on the Armada 8040-db and Armada 7040-db can be used if the link interrupt is described in the device tree. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Tested-by: Marcin Wojtas <mw@semihalf.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: take advantage of the is_rgmii helperAntoine Tenart2017-09-011-12/+3
| | | | | | | | | | | | | | | | | | Convert all RGMII checks to use the phy_interface_mode_is_rgmii() helper. This is a cosmetic patch. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: dynamic reconfiguration of the comphy/GoP/MACAntoine Tenart2017-08-301-1/+20
| | | | | | | | | | | | | | | | | | | | | | This patch adds logic to reconfigure the comphy/GoP/MAC when the link state is updated at runtime. This is very useful on boards where many link speed are supported: depending on what is negotiated the PPv2 driver will automatically reconfigures the link between the PHY and the MAC. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: do not set GMAC autoneg when using XLG MACAntoine Tenart2017-08-301-22/+42
| | | | | | | | | | | | | | | | | | When using the XLG MAC, it does not make sense to force the GMAC autoneg parameters. This patch adds checks to only set the GMAC autoneg parameters when needed (i.e. when not using the XLG MAC). Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: improve the link management functionAntoine Tenart2017-08-301-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | When the link status changes, the phylib calls the link_event function in the mvpp2 driver. Before this patch only the egress/ingress transmit was enabled/disabled. This patch adds more functionality to the link status management code by enabling/disabling the port per-cpu interrupts, and the port itself. The queues are now stopped as well, and the netif carrier helpers are called. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: simplify the link_event functionAntoine Tenart2017-08-301-9/+4
| | | | | | | | | | | | | | | | The link_event function is somewhat complicated. This cosmetic patch simplifies it. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: initialize the comphyAntoine Tenart2017-08-301-1/+43
| | | | | | | | | | | | | | | | | | | | | | On some platforms, the comphy is between the MAC GoP and the PHYs. The mvpp2 driver currently relies on the firmware/bootloader to configure the comphy. As a comphy driver was added to the generic PHY framework, this patch uses it in the mvpp2 driver to configure the comphy at boot time to avoid relying on the bootloader. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: fix the packet size configuration for 10GAntoine Ténart2017-08-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | The MVPP22_XLG_CTRL1_FRAMESIZELIMIT define is used as an offset, but is defined as BIT(0). Updated its name to contains "OFFS" as in offset and fix its value using the offset value, 0. Reported-by: Stefan Chulski <stefanc@marvell.com> Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Fixes: 76eb1b1de5b6 ("net: mvpp2: set maximum packet size for 10G ports") Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mv643xx_eth: Be drop monitor friendlyFlorian Fainelli2017-08-241-2/+2
| | | | | | | | | | | | | | | | | | txq_reclaim() does the normal transmit queue reclamation and rxq_deinit() does the RX ring cleanup, none of these are packet drops, so use dev_consume_skb() for both locations. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: software tso supportAntoine Ténart2017-08-231-14/+157
| | | | | | | | | | | | | | | | | | | | | | | | The patch uses the tso API to implement the tso functionality in Marvell PPv2 driver. Using iperf and 10G ports, using TSO shows a significant performance improvement by a factor 2 to reach around 9.5Gbps in TX; as well as a significant CPU usage drop (from 25% to 15%). Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: unify the txq size define useAntoine Ténart2017-08-231-6/+5
| | | | | | | | | | | | | | | | | | The txq size is defined by MVPP2_AGGR_TXQ_SIZE, which is sometime not used directly but through variables. As it is a fixed value use the define everywhere in the driver. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: define the TSO header size in net/tso.hAntoine Ténart2017-08-232-5/+0
| | | | | | | | | | | | | | | | The TSO header size was defined in many drivers. Factorize the code and define its size in net/tso.h. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: initialize the GoPAntoine Ténart2017-08-221-0/+170
| | | | | | | | | | | | | | | | | | | | The patch adds GoP (group of ports) initialization functions. The mvpp2 driver was relying on the firmware/bootloader initialization; this patch moves this setup to the mvpp2 driver. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Tested-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: set maximum packet size for 10G portsStefan Chulski2017-08-221-2/+22
| | | | | | | | | | | | | | | | | | | | Set maximum packet size for XLG 10G ports. Missing maximum packet size for XLG configuration will cause kernel panic if oversized packet is received by port. Signed-off-by: Stefan Chulski <stefanc@marvell.com> Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: initialize the XLG MAC when using a portAntoine Ténart2017-08-221-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | This adds a routine to initialize the XLG MAC at the port level when using a port and the XAUI/10GKR interface mode. This wasn't done until this commit, and the mvpp2 driver was relying on the bootloader/firmware initialization. This doesn't mean everything is configured in the mvpp2 driver now, but it helps reducing the gap. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Tested-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: initialize the GMAC when using a portAntoine Ténart2017-08-221-25/+98
| | | | | | | | | | | | | | | | | | | | | | | | This adds a routine to initialize the GMAC at the port level when using a port. This wasn't done until this commit, and the mvpp2 driver was relying on the bootloader/firmware initialization. This doesn't mean everything is configured in the mvpp2 driver now, but it helps reducing the gap. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Tested-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: move the mii configuration in the ndo_open pathAntoine Ténart2017-08-221-1/+1
| | | | | | | | | | | | | | | | | | | | This moves the mii configuration in the ndo_open path, to allow handling different mii configurations later and to switch between these configurations at runtime. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Tested-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: fix the synchronization module bypass macro nameAntoine Ténart2017-08-221-2/+2
| | | | | | | | | | | | | | | | | | | | The macro defining the bit to toggle to bypass or not the synchronization module is wrongly named. Writing 1 will disable bypass. This patch s/MVPP22_CTRL4_SYNC_BYPASS/MVPP22_CTRL4_SYNC_BYPASS_DIS/. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Tested-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: unify register definitions coding styleAntoine Ténart2017-08-221-44/+44
| | | | | | | | | | | | | | | | | | Cosmetic patch to use the same formatting rules on all register definitions. Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com> Tested-by: Marcin Wojtas <mw@semihalf.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | skge: add paren around sizeof argstephen hemminger2017-08-161-1/+1
| | | | | | | | | | Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: add support for TX interrupts and RX queue distribution modesThomas Petazzoni2017-08-031-29/+246
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit adds the support for two related features: - Support for TX interrupts, with one interrupt for each CPU - Support for different RX queue distribution modes MVPP2_QDIST_SINGLE_MODE where a single interrupt, shared by all CPUs, receives the RX events, and MVPP2_QDIST_MULTI_MODE, where the per-CPU interrupts used for TX events are also used for RX events. Since additional interrupts are needed, an update to the Device Tree binding is needed. However, backward compatibility is preserved with the old Device Tree binding, by gracefully degrading to the original behavior, with only one RX interrupt, and TX completion being handled by an hrtimer. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: mvpp2: introduce queue_vector conceptThomas Petazzoni2017-08-031-54/+169
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation to the introduction of TX interrupts and improved RX queue distribution, this commit introduces the concept of "queue vector". A queue vector represents a number of RX and/or TX queues, and an associated NAPI instance and interrupt. This commit currently only creates a single queue_vector, so there are no changes in behavior, but it paves the way for additional queue_vector in the next commits. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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