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path: root/drivers/net/ethernet
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2017-08-07net: hns3: fix spelling mistake: "capabilty" -> "capability"Colin Ian King
Trivial fix to spelling mistake in dev_err error message and also split overly long line to avoid a checkpatch warning. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07ibmvnic: Report rx buffer return codes as netdev_dbgJohn Allen
Reporting any return code for a receive buffer as an "rx error" only produces alarming noise and the only values that have been observed to be used in this field are not error conditions. Change this to a netdev_dbg with a more descriptive message. Signed-off-by: John Allen <jallen@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07hns3: fix unused function warningArnd Bergmann
Without CONFIG_PCI_IOV, we get a harmless warning about an unused function: drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c:2273:13: error: 'hclge_disable_sriov' defined but not used [-Werror=unused-function] The #ifdefs in this driver are obviously wrong, so this just removes them and uses an IS_ENABLED() check that does the same thing correctly in a more readable way. Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07Merge tag 'mlx5-shared-2017-08-07' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux Saeed Mahameed says: ==================== mlx5-shared-2017-08-07 This series includes some mlx5 updates for both net-next and rdma trees. From Saeed, Core driver updates to allow selectively building the driver with or without some large driver components, such as - E-Switch (Ethernet SRIOV support). - Multi-Physical Function Switch (MPFs) support. For that we split E-Switch and MPFs functionalities into separate files. From Erez, Delay mlx5_core events when mlx5 interfaces, namely mlx5_ib, registration is taking place and until it completes. From Rabie, Increase the maximum supported flow counters. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2017-08-07net: sched: get rid of struct tc_to_netdevJiri Pirko
Get rid of struct tc_to_netdev which is now just unnecessary container and rather pass per-type structures down to drivers directly. Along with that, consolidate the naming of per-type structure variables in cls_*. 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: change return value of ndo_setup_tc for driver supporting mqprio ↵Jiri Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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 Pirko
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/mlx5: Increase the maximum flow counters supportedRabie Loulou
Read new NIC capability field which represnts 16 MSBs of the max flow counters number supported (max_flow_counter_31_16). Backward compatibility with older firmware is preserved, the modified driver reads max_flow_counter_31_16 as 0 from the older firmware and uses up to 64K counters. Changed flow counter id from 16 bits to 32 bits. Backward compatibility with older firmware is preserved as we kept the 16 LSBs of the counter id in place and added 16 MSBs from reserved field. Changed the background bulk reading of flow counters to work in chunks of at most 32K counters, to make sure we don't attempt to allocate very large buffers. Signed-off-by: Rabie Loulou <rabiel@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-07net/mlx5: Delay events till ib registration endsErez Shitrit
When mlx5_ib registers itself to mlx5_core as an interface, it will call mlx5_add_device which will call mlx5_ib interface add callback, in case the latter successfully returns, only then mlx5_core will add it to the interface list and async events will be forwarded to mlx5_ib. Between mlx5_ib interface add callback and mlx5_core adding the mlx5_ib interface to its devices list, arriving mlx5_core events can be missed by the new mlx5_ib registering interface. In other words: thread 1: mlx5_ib: mlx5_register_interface(dev) thread 1: mlx5_core: mlx5_add_device(dev) thread 1: mlx5_core: ctx = dev->add => (mlx5_ib)->mlx5_ib_add thread 2: mlx5_core_event: **new event arrives, forward to dev_list thread 1: mlx5_core: add_ctx_to_dev_list(ctx) /* previous event was missed by the new interface.*/ It is ok to miss events before dev->add (mlx5_ib)->mlx5_ib_add_device but not after. We fix this race by accumulating the events that come between the ib_register_device (inside mlx5_add_device->(dev->add)) till the adding to the list completes and fire them to the new registering interface after that. Fixes: f1ee87fe55c8 ("net/mlx5: Organize device list API in one place") Signed-off-by: Erez Shitrit <erezsh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-07net/mlx5: Add CONFIG_MLX5_ESWITCH KconfigSaeed Mahameed
Allow to selectively build the driver with or without sriov eswitch, VF representors and TC offloads. Also remove the need of two ndo ops structures (sriov & basic) and keep only one unified ndo ops, compile out VF SRIOV ndos when not needed (MLX5_ESWITCH=n), and for VF netdev calling those ndos will result in returning -EPERM. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Cc: Jes Sorensen <jsorensen@fb.com> Cc: kernel-team@fb.com
2017-08-07net/mlx5: Separate between E-Switch and MPFSSaeed Mahameed
Multi-Physical Function Switch (MPFs) is required for when multi-PF configuration is enabled to allow passing user configured unicast MAC addresses to the requesting PF. Before this patch eswitch.c used to manage the HW MPFS l2 table, E-Switch always (regardless of sriov) enabled vport(0) (NIC PF) vport's contexts update on unicast mac address list changes, to populate the PF's MPFS L2 table accordingly. In downstream patch we would like to allow compiling the driver without E-Switch functionalities, for that we move MPFS l2 table logic out of eswitch.c into its own file, and provide Kconfig flag (MLX5_MPFS) to allow compiling out MPFS for those who don't want Multi-PF support. NIC PF netdevice will now directly update MPFS l2 table via the new MPFS API. VF netdevice has no access to MPFS L2 table, so E-Switch will remain responsible of updating its MPFS l2 table on behalf of its VFs. Due to this change we also don't require enabling vport(0) (PF vport) unicast mac changes events anymore, for when SRIOV is not enabled. Which means E-Switch is now activated only on SRIOV activation, and not required otherwise. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Cc: Jes Sorensen <jsorensen@fb.com> Cc: kernel-team@fb.com
2017-08-07net/mlx5: Unify vport manager capability checkSaeed Mahameed
Expose MLX5_VPORT_MANAGER macro to check for strict vport manager E-switch and MPFS (Multi Physical Function Switch) abilities. VPORT manager must be a PF with an ethernet link and with FW advertised vport group manager capability Replace older checks with the new macro and use it where needed in eswitch.c and mlx5e netdev eswitch related flows. The same macro will be reused in MPFS separation downstream patch. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2017-08-07net/mlx5e: NIC netdev init flow cleanupSaeed Mahameed
Remove redundant call to unregister vport representor in mlx5e_add error flow. Hide the representor priv and eswitch internal structures from en_main.c as preparation step for downstream patches which would allow building the driver without support for representors and eswitch. Fixes: 6f08a22c5fb2 ("net/mlx5e: Register/unregister vport representors on interface attach/detach") Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
2017-08-07net/mlx5e: Rearrange netdevice ops structuresSaeed Mahameed
Since we are going to allow building the driver without eswitch support, it would be possible to compile out the sriov netdevice ops struct such that the basic ops instance will be used for non VF devices too. Add missing udp tunnel ndos into mlx5e_netdev_ops_basic. While here, rearrange some ndos in the sriov ops struct and put vf/eswitch related ndos towards the end of it. Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
2017-08-06net: stmmac: Add Adaptrum Anarion GMAC glue layerAlexandru Gagniuc
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>
2017-08-06net: systemport: Support 64bit statisticskiki good
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>
2017-08-06liquidio: moved console_bitmask module param to lio_main.cIntiyaz Basha
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>
2017-08-06liquidio: add missing strings in oct_dev_state_str arrayIntiyaz Basha
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>
2017-08-04aquantia: Switch to use napi_gro_receivePavel Belous
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>
2017-08-04xgene: Always get clk source, but ignore if it's missing for SGMII portsThomas Bogendoerfer
Even the driver doesn't do anything with the clk source for SGMII ports it needs to be enabled by doing a devm_clk_get(), if there is a clk source in DT. Fixes: 0db01097cabd ('xgene: Don't fail probe, if there is no clk resource for SGMII interfaces') Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Tested-by: Laura Abbott <labbott@redhat.com> Acked-by: Iyappan Subramanian <isubramanian@apm.com> Tested-by: Will Deacon <will.deacon@arm.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 Pirko
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>
2017-08-04mlxsw: spectrum_switchdev: Release multicast groups during finiIdo Schimmel
Each multicast group (MID) stores a bitmap of ports to which a packet should be forwarded to in case an MDB entry associated with the MID is hit. Since the initial introduction of IGMP snooping in commit 3a49b4fde2a1 ("mlxsw: Adding layer 2 multicast support") the driver didn't correctly free these multicast groups upon ungraceful situations such as the removal of the upper bridge device or module removal. The correct way to fix this is to associate each MID with the bridge ports member in it and then drop the reference in case the bridge port is destroyed, but this will result in a lot more code and will be fixed in net-next. For now, upon module removal, traverse the MID list and release each one. Fixes: 3a49b4fde2a1 ("mlxsw: Adding layer 2 multicast support") 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_switchdev: Don't warn about valid situationsIdo Schimmel
Some operations in the bridge driver such as MDB deletion are preformed in an atomic context and thus deferred to a process context by the switchdev infrastructure. Therefore, by the time the operation is performed by the underlying device driver it's possible the bridge port context is already gone. This is especially true for removal flows, but theoretically can also be invoked during addition. Remove the warnings in such situations and return normally. Fixes: c57529e1d5d8 ("mlxsw: spectrum: Replace vPorts with Port-VLAN") Fixes: 3922285d96e7 ("net: bridge: Add support for offloading port attributes") 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: hns: Fix for __udivdi3 compiler errorLin Yun Sheng
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>
2017-08-03mlxsw: spectrum_router: Don't ignore IPv6 notificationsIdo Schimmel
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>
2017-08-03mlxsw: spectrum_router: Abort on source-specific routesIdo Schimmel
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>
2017-08-03mlxsw: spectrum_router: Add support for route replaceIdo Schimmel
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>
2017-08-03mlxsw: spectrum_router: Add support for IPv6 routes addition / deletionIdo Schimmel
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>
2017-08-03mlxsw: spectrum_router: Sanitize IPv6 FIB rulesIdo Schimmel
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>
2017-08-03mlxsw: spectrum_router: Demultiplex FIB event based on familyIdo Schimmel
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>
2017-08-03rocker: Ignore address families other than IPv4Ido Schimmel
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>
2017-08-03mlxsw: spectrum_router: Ignore address families other than IPv4Ido Schimmel
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>
2017-08-03net: core: Make the FIB notification chain genericIdo Schimmel
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>
2017-08-03net: mvpp2: add support for TX interrupts and RX queue distribution modesThomas Petazzoni
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>
2017-08-03net: mvpp2: introduce queue_vector conceptThomas Petazzoni
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>
2017-08-03net: mvpp2: move from cpu-centric naming to "software thread" namingThomas Petazzoni
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>
2017-08-03net: mvpp2: introduce per-port nrxqs/ntxqs variablesThomas Petazzoni
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>
2017-08-03net: mvpp2: remove RX queue group reset codeThomas Petazzoni
The RX queue group allocation is anyway re-done later in mvpp2_port_init(), so resetting it in mvpp2_init() is not very useful, and will be annoying as we are going to rework the RX queue group allocation logic. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: David S. Miller <davem@davemloft.net>