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2017-08-07net: sched: change return value of ndo_setup_tc for driver supporting mqprio ↵Jiri Pirko11-11/+11
only Change the return value from -EINVAL to -EOPNOTSUPP. The rest of the drivers have it like that, so be aligned. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: sched: move prio into cls_commonJiri Pirko1-1/+1
prio is not cls_flower specific, but it is meaningful for all classifiers. Seems that only mlxsw cares about the value. Obviously, cls offload in other drivers is broken. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: sched: push cls related args into cls_common structureJiri Pirko31-100/+55
As ndo_setup_tc is generic offload op for whole tc subsystem, does not really make sense to have cls-specific args. So move them under cls_common structurure which is embedded in all cls structs. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07hns3pf: don't check handle during mqprio offloadJiri Pirko1-1/+1
Similar to the rest offloaders of mqprio, no need to check handle. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07nfp: change flows in apps that offload ndo_setup_tcJiri Pirko2-17/+9
Change the flows a bit in preparation of follow-up changes in ndo_setup_tc args. Also, change the error code to align with the rest of the drivers. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07mlxsw: spectrum: rename cls arg in matchall processingJiri Pirko1-7/+7
To sync-up with the naming in the rest of the driver, rename the cls arg. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07mlxsw: spectrum: push cls_flower and cls_matchall setup_tc processing into ↵Jiri Pirko1-30/+51
separate functions Let mlxsw_sp_setup_tc be a splitter for specific setup_tc types and push out cls_flower and cls_matchall specific codes into separate functions. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07mlx5e_rep: push cls_flower setup_tc processing into a separate functionJiri Pirko1-20/+29
Let mlx5e_rep_setup_tc (former mlx5e_rep_ndo_setup_tc) be a splitter for specific setup_tc types and push out cls_flower specific code into a separate function. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07mlx5e: push cls_flower and mqprio setup_tc processing into separate functionsJiri Pirko1-25/+31
Let mlx5e_setup_tc (former mlx5e_ndo_setup_tc) be a splitter for specific setup_tc types and push out cls_flower and mqprio specific codes into separate functions. Also change the return values so they are the same as in the rest of the drivers. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07ixgbe: push cls_u32 and mqprio setup_tc processing into separate functionsJiri Pirko1-28/+39
Let __ixgbe_setup_tc be a splitter for specific setup_tc types and push out cls_u32 and mqprio specific codes into separate functions. Also change the return values so they are the same as in the rest of the drivers. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07cxgb4: push cls_u32 setup_tc processing into a separate functionJiri Pirko1-16/+26
Let cxgb_setup_tc be a splitter for specific setup_tc types and push out cls_u32 specific code into a separate function. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: sched: make egress_dev flag part of flower offload structJiri Pirko1-1/+1
Since this is specific to flower now, make it part of the flower offload struct. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: sched: rename TC_SETUP_MATCHALL to TC_SETUP_CLSMATCHALLJiri Pirko1-1/+1
In order to be aligned with the rest of the types, rename TC_SETUP_MATCHALL to TC_SETUP_CLSMATCHALL. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: sched: make type an argument for ndo_setup_tcJiri Pirko25-71/+91
Since the type is always present, push it to be a separate argument to ndo_setup_tc. On the way, name the type enum and use it for arg type. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: stmmac: Add Adaptrum Anarion GMAC glue layerAlexandru Gagniuc3-0/+162
Before the GMAC on the Anarion chip can be used, the PHY interface selection must be configured with the DWMAC block in reset. This layer covers a block containing only two registers. Although it is possible to model this as a reset controller and use the "resets" property of stmmac, it's much more intuitive to include this in the glue layer instead. At this time only RGMII is supported, because it is the only mode which has been validated hardware-wise. Signed-off-by: Alexandru Gagniuc <alex.g@adaptrum.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07netvsc: fix rtnl deadlock on unregister of vfstephen hemminger1-2/+10
With new transparent VF support, it is possible to get a deadlock when some of the deferred work is running and the unregister_vf is trying to cancel the work element. The solution is to use trylock and reschedule (similar to bonding and team device). Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com> Fixes: 0c195567a8f6 ("netvsc: transparent VF management") Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: systemport: Support 64bit statisticskiki good2-17/+82
When using Broadcom Systemport device in 32bit Platform, ifconfig can only report up to 4G tx,rx status, which will be wrapped to 0 when the number of incoming or outgoing packets exceeds 4G, only taking around 2 hours in busy network environment (such as streaming). Therefore, it makes hard for network diagnostic tool to get reliable statistical result, so the patch is used to add 64bit support for Broadcom Systemport device in 32bit Platform. This patch provides 64bit statistics capability on both ethtool and ifconfig. Signed-off-by: Jianming.qiao <kiki-good@hotmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07liquidio: moved console_bitmask module param to lio_main.cIntiyaz Basha3-14/+17
Moving PF module param console_bitmask to lio_main.c for consistency. Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07liquidio: add missing strings in oct_dev_state_str arrayIntiyaz Basha1-2/+3
There's supposed to be a one-to-one correspondence between the 18 macros that #define the OCT_DEV states (in octeon_device.h) and the strings in the oct_dev_state_str array, but there are only 14 strings in the array. Add the missing strings (so they become 18 in total), and also revise some incorrect/outdated text of existing strings. Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07sfp: add SFP module supportRussell King3-0/+921
Add support for SFP hotpluggable modules via sfp-bus and phylink. This supports both copper and optical SFP modules, which require different Serdes modes in order to properly negotiate the link. Optical SFP modules typically require the Serdes link to be talking 1000BaseX mode - this is the gigabit ethernet mode defined by the 802.3 standard. Copper SFP modules typically integrate a PHY in the module to convert from Serdes to copper, and the PHY will be configured by the vendor to either present a 1000BaseX Serdes link (for fixed 1000BaseT) or a SGMII Serdes link. However, this is vendor defined, so we instead detect the PHY, switch the link to SGMII mode, and use traditional PHY based negotiation. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07phylink: add in-band autonegotiation support for 10GBase-KR mode.Russell King1-0/+17
Add in-band autonegotation support for 10GBase-KR mode. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07phylink: add support for MII ioctl access to Clause 45 PHYsRussell King1-33/+124
Add support for reading and writing the clause 45 MII registers. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07phylink: add module EEPROM supportRussell King1-0/+28
Add support for reading module EEPROMs through phylink. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07sfp: add sfp-bus to bridge between network devices and sfp cagesRussell King4-0/+663
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07phylink: add phylink infrastructureRussell King4-0/+1181
The link between the ethernet MAC and its PHY has become more complex as the interface evolves. This is especially true with serdes links, where the part of the PHY is effectively integrated into the MAC. Serdes links can be connected to a variety of devices, including SFF modules soldered down onto the board with the MAC, a SFP cage with a hotpluggable SFP module which may contain a PHY or directly modulate the serdes signals onto optical media with or without a PHY, or even a classical PHY connection. Moreover, the negotiation information on serdes links comes in two varieties - SGMII mode, where the PHY provides its speed/duplex/flow control information to the MAC, and 1000base-X mode where both ends exchange their abilities and each resolve the link capabilities. This means we need a more flexible means to support these arrangements, particularly with the hotpluggable nature of SFP, where the PHY can be attached or detached after the network device has been brought up. Ethtool information can come from multiple sources: - we may have a PHY operating in either SGMII or 1000base-X mode, in which case we take ethtool/mii data directly from the PHY. - we may have a optical SFP module without a PHY, with the MAC operating in 1000base-X mode - the ethtool/mii data needs to come from the MAC. - we may have a copper SFP module with a PHY whic can't be accessed, which means we need to take ethtool/mii data from the MAC. Phylink aims to solve this by providing an intermediary between the MAC and PHY, providing a safe way for PHYs to be hotplugged, and allowing a SFP driver to reconfigure the serdes connection. Phylink also takes over support of fixed link connections, where the speed/duplex/flow control are fixed, but link status may be controlled by a GPIO signal. By avoiding the fixed-phy implementation, phylink can provide a faster response to link events: fixed-phy has to wait for phylib to operate its state machine, which can take several seconds. In comparison, phylink takes milliseconds. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> - remove sync status - rework supported and advertisment handling - add 1000base-x speed for fixed links - use functionality exported from phy-core, reworking __phylink_ethtool_ksettings_set for it Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: phy: add I2C mdio busRussell King4-0/+139
Add an I2C MDIO bus bridge library, to allow phylib to access PHYs which are connected to an I2C bus instead of the more conventional MDIO bus. Such PHYs can be found in SFP adapters and SFF modules. Since PHYs appear at I2C bus address 0x40..0x5f, and 0x50/0x51 are reserved for SFP EEPROMs/diagnostics, we must not allow the MDIO bus to access these I2C addresses. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: phy: export phy_start_machine() for phylinkRussell King1-0/+1
phylink will need phy_start_machine exported, so lets export it as a GPL symbol. Documentation/networking/phy.txt indicates that this should be a PHY API function. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: phy: provide a hook for link up/link down eventsRussell King2-22/+34
Sometimes, we need to do additional work between the PHY coming up and marking the carrier present - for example, we may need to wait for the PHY to MAC link to finish negotiation. This changes phylib to provide a notification function pointer which avoids the built-in netif_carrier_on() and netif_carrier_off() functions. Standard ->adjust_link functionality is provided by hooking a helper into the new ->phy_link_change method. Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: phy: add 1000Base-X to phy settings tableRussell King1-0/+5
Add the missing 1000Base-X entry to the phy settings table. This was not included because the original code could not cope with more than 32 bits of link mode mask. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: phy: move phy_lookup_setting() and guts of phy_supported_speeds() to ↵Russell King2-129/+127
phy-core phy_lookup_setting() provides useful functionality in ethtool code outside phylib. Move it to phy-core and allow it to be re-used (eg, in phylink) rather than duplicated elsewhere. Note that this supports the larger linkmode space. As we move the phy settings table, we also need to move the guts of phy_supported_speeds() as well. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: phy: split out PHY speed and duplex string generationRussell King2-37/+50
Other code would like to make use of this, so make the speed and duplex string generation visible, and place it in a separate file. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: phy: allow settings table to support more than 32 link modesRussell King1-18/+26
Allow the phy settings table to support more than 32 link modes by switching to the ethtool link mode bit number representation, rather than storing the mask. This will allow phylink and other ethtool code to share the settings table to look up settings. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-05aquantia: Switch to use napi_gro_receivePavel Belous3-3/+10
Add support for GRO (generic receive offload) for aQuantia Atlantic driver. This results in a perfomance improvement when GRO is enabled. Signed-off-by: Pavel Belous <pavel.belous@aquantia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04net: sched: change names of action number helpers to be aligned with the restJiri Pirko6-8/+8
The rest of the helpers are named tcf_exts_*, so change the name of the action number helpers to be aligned. While at it, change to inline functions. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04net: hns: Fix for __udivdi3 compiler errorLin Yun Sheng1-1/+2
This patch fixes the __udivdi3 undefined error reported by test robot. Fixes: b8c17f708831 ("net: hns: Add self-adaptive interrupt coalesce support in hns driver") Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04net: phy: marvell: logical vs bitwise OR typoDan Carpenter1-1/+1
This was supposed to be a bitwise OR but there is a || vs | typo. Fixes: 864dc729d528 ("net: phy: marvell: Refactor m88e1121 RGMII delay configuration") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04sock: enable MSG_ZEROCOPYWillem de Bruijn2-1/+2
Prepare the datapath for refcounted ubuf_info. Clone ubuf_info with skb_zerocopy_clone() wherever needed due to skb split, merge, resize or clone. Split skb_orphan_frags into two variants. The split, merge, .. paths support reference counted zerocopy buffers, so do not do a deep copy. Add skb_orphan_frags_rx for paths that may loop packets to receive sockets. That is not allowed, as it may cause unbounded latency. Deep copy all zerocopy copy buffers, ref-counted or not, in this path. The exact locations to modify were chosen by exhaustively searching through all code that might modify skb_frag references and/or the the SKBTX_DEV_ZEROCOPY tx_flags bit. The changes err on the safe side, in two ways. (1) legacy ubuf_info paths virtio and tap are not modified. They keep a 1:1 ubuf_info to sk_buff relationship. Calls to skb_orphan_frags still call skb_copy_ubufs and thus copy frags in this case. (2) not all copies deep in the stack are addressed yet. skb_shift, skb_split and skb_try_coalesce can be refined to avoid copying. These are not in the hot path and this patch is hairy enough as is, so that is left for future refinement. Signed-off-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04mlxsw: spectrum_router: Don't ignore IPv6 notificationsIdo Schimmel1-1/+1
We now have all the necessary IPv6 infrastructure in place, so stop ignoring these notifications. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04mlxsw: spectrum_router: Abort on source-specific routesIdo Schimmel1-0/+3
Without resorting to ACLs, the device performs route lookup solely based on the destination IP address. In case source-specific routing is needed, an error is returned and the abort mechanism is activated, thus allowing the kernel to take over forwarding decisions. Instead of aborting, we can trap specific destination prefixes where source-specific routes are present, but this will result in a lot more code that is unlikely to ever be used. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04mlxsw: spectrum_router: Add support for route replaceIdo Schimmel1-14/+49
In case we got a replace event, then the replaced route must exist. If the route isn't capable of multipath, then replace first matching non-multipath capable route. If the route is capable of multipath and matching multipath capable route is found, then replace it. Otherwise, replace first matching non-multipath capable route. The new route is inserted before the replaced one. In case the replaced route is currently offloaded, then it's overwritten in the device's table by the new route and later deleted, thus not impacting routed traffic. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04mlxsw: spectrum_router: Add support for IPv6 routes addition / deletionIdo Schimmel2-3/+724
Allow directly connected and remote unicast IPv6 routes to be programmed to the device's tables. As with IPv4, identical routes - sharing the same destination prefix - are ordered in a FIB node according to their table ID and then the metric. While the kernel doesn't share the same trie for the local and main table, this does happen in the device, so ordering according to table ID is needed. Since individual nexthops can be added and deleted in IPv6, each FIB entry stores a linked list of the rt6_info structs it represents. Upon the addition or deletion of a nexthop, a new nexthop group is allocated according to the new configuration and the old one is destroyed. Identical groups aren't currently consolidated, but will be in a follow-up patchset. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04mlxsw: spectrum_router: Sanitize IPv6 FIB rulesIdo Schimmel1-0/+25
We only allow FIB offload in the presence of default rules or an l3mdev rule. In a similar fashion to IPv4 FIB rules, sanitize IPv6 rules. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04mlxsw: spectrum_router: Demultiplex FIB event based on familyIdo Schimmel1-21/+44
The FIB notification block currently only handles IPv4 events, but we want to start handling IPv6 events soon, so lay the groundwork now. Do that by preparing the work item and process it according to the notified address family. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04rocker: Ignore address families other than IPv4Ido Schimmel1-0/+4
As in previous patch, ignore IPv6 notifications since the driver doesn't support these. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04mlxsw: spectrum_router: Ignore address families other than IPv4Ido Schimmel1-1/+1
We're about to add IPv6 notifications in the FIB notification chain, but the driver currently doesn't support these, so ignore them. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04net: core: Make the FIB notification chain genericIdo Schimmel2-0/+2
The FIB notification chain is currently soley used by IPv4 code. However, we're going to introduce IPv6 FIB offload support, which requires these notification as well. As explained in commit c3852ef7f2f8 ("ipv4: fib: Replay events when registering FIB notifier"), upon registration to the chain, the callee receives a full dump of the FIB tables and rules by traversing all the net namespaces. The integrity of the dump is ensured by a per-namespace sequence counter that is incremented whenever a change to the tables or rules occurs. In order to allow more address families to use the chain, each family is expected to register its fib_notifier_ops in its pernet init. These operations allow the common code to read the family's sequence counter as well as dump its tables and rules in the given net namespace. Additionally, a 'family' parameter is added to sent notifications, so that listeners could distinguish between the different families. Implement the common code that allows listeners to register to the chain and for address families to register their fib_notifier_ops. Subsequent patches will implement these operations in IPv6. In the future, ipmr and ip6mr will be extended to provide these notifications as well. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04net: mvpp2: add support for TX interrupts and RX queue distribution modesThomas Petazzoni1-29/+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>
2017-08-04net: mvpp2: introduce queue_vector conceptThomas Petazzoni1-54/+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>
2017-08-04net: mvpp2: move from cpu-centric naming to "software thread" namingThomas Petazzoni1-12/+13
The PPv2.2 IP has a concept of "software thread", with all registers of the PPv2.2 mapped 8 times, for concurrent accesses by 8 "software threads". In addition, interrupts on RX queues are associated to such "software thread". For most cases, we map a "software thread" to the more conventional concept of CPU, but we will soon have one exception: we will have a model where we have one TX interrupt per CPU (each using one software thread), and all RX events mapped to another software thread (associated to another interrupt). In preparation for this change, it makes sense to change the naming from MVPP2_MAX_CPUS to MVPP2_MAX_THREADS, and plan for 8 software threads instead of 4 currently. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-04net: mvpp2: introduce per-port nrxqs/ntxqs variablesThomas Petazzoni1-42/+41
Currently, the global variables rxq_number and txq_number hold the number of per-port TXQs and RXQs. Until now, such numbers were constant regardless of the driver configuration. As we are going to introduce different modes for TX and RX queues, these numbers will depend on the configuration (PPv2.1 vs. PPv2.2, exact queue distribution logic). Therefore, as a preparation, we move the number of RXQs and TXQs in the 'struct mvpp2_port' structure, next to the RXQs and TXQs descriptor arrays. For now, they remain initialized to the same default values as rxq_number/txq_number used to be initialized, but this will change in future commits. The only non-mechanical change in this patch is that the check to verify hardware constraints on the number of RXQs and TXQs is moved from mvpp2_probe() to mvpp2_port_probe(), since it's now in mvpp2_port_probe() that we initialize the per-port count of RXQ and TXQ. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>