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2015-09-25switchdev: move transaction phase enum under transaction structureJiri Pirko1-6/+6
Before it disappears completely, move transaction phase enum under transaction structure and make attr/obj structures a bit cleaner. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-25switchdev: introduce transaction item queue for attr_set and obj_addJiri Pirko1-13/+98
Now, the memory allocation in prepare/commit state is done separatelly in each driver (rocker). Introduce the similar mechanism in generic switchdev code, in form of queue. That can be used not only for memory allocations, but also for different items. Abort item destruction is handled as well. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-25switchdev: rename "trans" to "trans_ph".Jiri Pirko1-6/+6
This is temporary, name "trans" will be used for something else and "trans_ph" will eventually disappear. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-09-06switchdev: fix return value of switchdev_port_fdb_dump in case of errorJiri Pirko1-5/+1
switchdev_port_fdb_dump is used as .ndo_fdb_dump. Its return value is idx, so we cannot return errval. Fixes: 45d4122ca7cd ("switchdev: add support for fdb add/del/dump via switchdev_port_obj ops.") Signed-off-by: Jiri Pirko <jiri@mellanox.com> Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Acked-by: Scott Feldman<sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-11net: switchdev: support static FDB addressesVivien Didelot1-1/+1
This patch adds an ndm_state member to the switchdev_obj_fdb structure, in order to support static FDB addresses. Set Rocker ndm_state to NUD_REACHABLE. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Acked-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-11Revert "Merge branch 'mv88e6xxx-switchdev-fdb'"David S. Miller1-4/+3
This reverts commit f1d5ca434413b20cd3f8c18ff2b634b7782149a5, reversing changes made to 4933d85c5173832ebd261756522095837583c458. I applied v2 instead of v3. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10net: switchdev: support static FDB addressesVivien Didelot1-1/+1
This patch adds a is_static boolean to the switchdev_obj_fdb structure, in order to set the ndm_state to either NUD_NOARP or NUD_REACHABLE. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-10net: switchdev: change fdb addr for a byte arrayVivien Didelot1-2/+3
The address in the switchdev_obj_fdb structure is currently represented as a pointer. Replacing it for a 6-byte array allows switchdev to carry addresses directly read from hardware registers, not stored by the switch chip driver (as in Rocker). Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21switchdev: add offload_fwd_mark generator helperScott Feldman1-0/+103
skb->offload_fwd_mark and dev->offload_fwd_mark are 32-bit and should be unique for device and may even be unique for a sub-set of ports within device, so add switchdev helper function to generate unique marks based on port's switch ID and group_ifindex. group_ifindex would typically be the container dev's ifindex, such as the bridge's ifindex. The generator uses a global hash table to store offload_fwd_marks hashed by {switch ID, group_ifindex} key. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-21net: add phys ID compare helper to test if two IDs are the sameScott Feldman1-6/+2
Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-12net: switchdev: don't abort unsupported operationsVivien Didelot1-4/+8
There is no need to abort attribute setting or object addition, if the prepare phase returned operation not supported. Thus, abort these two transactions only if the error is not -EOPNOTSUPP. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-24net: switchdev: ignore unsupported bridge flagsVivien Didelot1-1/+1
switchdev_port_bridge_getlink() queries SWITCHDEV_ATTR_PORT_BRIDGE_FLAGS attributes, but a driver doesn't need to implement this in order to get bridge link information. So error out only on errors different than -EOPNOTSUPP. (This is a follow-up patch for 7d4f8d8.) Fixes: 8793d0a664a8 ("switchdev: add new switchdev_port_bridge_getlink") Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23switchdev: change BUG_ON to WARN for attr set failure caseScott Feldman1-1/+2
This particular BUG_ON condition was checking for attr set err in the COMMIT phase, which isn't expected (it's a driver bug if PREPARE phase is OK but COMMIT fails). But BUG_ON() is too strong for this case, so change to WARN(). BUG_ON() would be warranted if the system was corrupted beyond repair, but this is not the case here. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23switchdev; add VLAN support for port's bridge_getlinkScott Feldman1-1/+122
One more missing piece of the puzzle. Add vlan dump support to switchdev port's bridge_getlink. iproute2 "bridge vlan show" cmd already knows how to show the vlans installed on the bridge and the device , but (until now) no one implemented the port vlan part of the netlink PF_BRIDGE:RTM_GETLINK msg. Before this patch, "bridge vlan show": $ bridge -c vlan show port vlan ids sw1p1 30-34 << bridge side vlans 57 sw1p1 << device side vlans (missing) sw1p2 57 sw1p2 sw1p3 sw1p4 br0 None (When the port is bridged, the output repeats the vlan list for the vlans on the bridge side of the port and the vlans on the device side of the port. The listing above show no vlans for the device side even though they are installed). After this patch: $ bridge -c vlan show port vlan ids sw1p1 30-34 << bridge side vlan 57 sw1p1 30-34 << device side vlans 57 3840 PVID sw1p2 57 sw1p2 57 3840 PVID sw1p3 3842 PVID sw1p4 3843 PVID br0 None I re-used ndo_dflt_bridge_getlink to add vlan fill call-back func. switchdev support adds an obj dump for VLAN objects, using the same call-back scheme as FDB dump. Support included for both compressed and un-compressed vlan dumps. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23switchdev: rename vlan vid_start to vid_beginScott Feldman1-6/+6
Use vid_begin/end to be consistent with BRIDGE_VLAN_INFO_RANGE_BEGIN/END. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-23switchdev: fdb filter_dev is always NULL for self (device), so remove checkScott Feldman1-6/+0
Remove the filter_dev check when dumping fdb entries, otherwise dump returns empty list. filter_dev is always passed as NULL when dumping fdbs on SELF. We want the fdbs installed on the device to be listed in the dump. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Fixes: 45d4122c ("switchdev: add support for fdb add/del/dump via switchdev_port_obj ops") Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-12switchdev: fix BUG when port driver doesn't support set attr opScott Feldman1-1/+3
Fix a BUG_ON() where CONFIG_NET_SWITCHDEV is set but the driver for a bridged port does not support switchdev_port_attr_set op. Don't BUG_ON() if -EOPNOTSUPP is returned. Also change BUG_ON() to netdev_err since this is a normal error path and does not warrant the use of BUG_ON(), which is reserved for unrecoverable errs. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Reported-by: Brenden Blanco <bblanco@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-11switchdev: fix handling for drivers not supporting IPv4 fib add/del opsScott Feldman1-2/+2
If CONFIG_NET_SWITCHDEV is enabled, but port driver does not implement support for IPv4 FIB add/del ops, don't fail route add/del offload operations. Route adds will not be marked as OFFLOAD. Routes will be installed in the kernel FIB, as usual. This was report/fixed by Florian when testing DSA driver with net-next on devices with L2 offload support but no L3 offload support. What he reported was an initial route installed from DHCP client would fail (route not installed to kernel FIB). This was triggering the setting of ipv4.fib_offload_disabled, which would disable route offloading after the first failure. So subsequent attempts to install the route would succeed. There is follow-on work/discussion to address the handling of route install failures, but for now, let's differentiate between no support and failed support. Reported-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-04switchdev: documentation: use switchdev_port_obj_xxx for IPv4 FIB ↵Scott Feldman1-2/+2
add/modify/delete ops Clarify in documentation and code that IPV4 FIB add operation is used for both adding a new FIB entry to the device and for modifying an existing FIB entry on the device. Also, remove left-over references to ipv4_fib ops and replace with details on SWITCHDEV_PORT_IPV4_FIB object. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-3/+3
Conflicts: drivers/net/ethernet/cadence/macb.c drivers/net/phy/phy.c include/linux/skbuff.h net/ipv4/tcp.c net/switchdev/switchdev.c Switchdev was a case of RTNH_H_{EXTERNAL --> OFFLOAD} renaming overlapping with net-next changes of various sorts. phy.c was a case of two changes, one adding a local variable to a function whilst the second was removing one. tcp.c overlapped a deadlock fix with the addition of new tcp_info statistic values. macb.c involved the addition of two zyncq device entries. skbuff.h involved adding back ipv4_daddr to nf_bridge_info whilst net-next changes put two other existing members of that struct into a union. Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-18switchdev: add support for fdb add/del/dump via switchdev_port_obj ops.Samudrala, Sridhar1-0/+175
- introduce port fdb obj and generic switchdev_port_fdb_add/del/dump() - use switchdev_port_fdb_add/del/dump in rocker/team/bonding ndo ops. - add support for fdb obj in switchdev_port_obj_add/del/dump() - switch rocker to implement fdb ops via switchdev_ops v3: updated to sync with named union changes. Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-15rename RTNH_F_EXTERNAL to RTNH_F_OFFLOADRoopa Prabhu1-3/+3
RTNH_F_EXTERNAL today is printed as "offload" in iproute2 output. This patch renames the flag to be consistent with what the user sees. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: don't use anonymous union on switchdev attr/obj structsScott Feldman1-19/+20
Older gcc versions (e.g. gcc version 4.4.6) don't like anonymous unions which was causing build issues on the newly added switchdev attr/obj structs. Fix this by using named union on structs. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Reported-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: sparse warning: pass ipv4 fib dst as network-byte orderScott Feldman1-2/+2
And let driver convert it to host-byte order as needed. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: sparse warning: make __switchdev_port_obj_add staticScott Feldman1-1/+2
Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: convert fib_ipv4_add/del over to switchdev_port_obj_add/delScott Feldman1-18/+31
The IPv4 FIB ops convert nicely to the switchdev objs and we're left with only four switchdev ops: port get/set and port add/del. Other objs will follow, such as FDB. So go ahead and convert IPv4 FIB over to switchdev obj for consistency, anticipating more objs to come. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: add new switchdev_port_bridge_getlinkScott Feldman1-0/+28
Like bridge_setlink, add switchdev wrapper to handle bridge_getlink and call into port driver to get port attrs. For now, only BR_LEARNING and BR_LEARNING_SYNC are returned. To add more, we'll probably want to break away from ndo_dflt_bridge_getlink() and build the netlink skb directly in the switchdev code. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: remove unused switchdev_port_bridge_dellinkScott Feldman1-30/+0
Now we can remove old wrappers for dellink. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: add new switchdev_port_bridge_dellinkScott Feldman1-12/+12
Same change as setlink. Provide the wrapper op for SELF ndo_bridge_dellink and call into the switchdev driver to delete afspec VLANs. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: remove old switchdev_port_bridge_setlinkScott Feldman1-30/+0
New attr-based bridge_setlink can recurse lower devs and recover on err, so remove old wrapper (including ndo_dflt_switchdev_port_bridge_setlink). Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: add new switchdev bridge setlinkScott Feldman1-11/+140
Add new switchdev_port_bridge_setlink that can be used by drivers implementing .ndo_bridge_setlink to set switchdev bridge attributes. Basically turn the raw rtnl_bridge_setlink netlink into switchdev attr sets. Proper netlink attr policy checking is done on the protinfo part of the netlink msg. Currently, for protinfo, only bridge port attrs BR_LEARNING and BR_LEARNING_SYNC are parsed and passed to port driver. For afspec, VLAN objs are passed so switchdev driver can set VLANs assigned to SELF. To illustrate with iproute2 cmd, we have: bridge vlan add vid 10 dev sw1p1 self master To add VLAN 10 to port sw1p1 for both the bridge (master) and the device (self). Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: introduce switchdev add/del obj opsScott Feldman1-0/+107
Like switchdev attr get/set, add new switchdev obj add/del. switchdev objs will be things like VLANs or FIB entries, so add/del fits better for objects than get/set used for attributes. Use same two-phase prepare-commit transaction model as in attr set. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: convert STP update to switchdev attr setScott Feldman1-28/+0
STP update is just a settable port attribute, so convert switchdev_port_stp_update to an attr set. For DSA, the prepare phase is skipped and STP updates are only done in the commit phase. This is because currently the DSA drivers don't need to allocate any memory for STP updates and the STP update will not fail to HW (unless something horrible goes wrong on the MDIO bus, in which case the prepare phase wouldn't have been able to predict anyway). Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: convert parent_id_get to switchdev attr getScott Feldman1-27/+11
Switch ID is just a gettable port attribute. Convert switchdev op switchdev_parent_id_get to a switchdev attr. Note: for sysfs and netlink interfaces, SWITCHDEV_ATTR_PORT_PARENT_ID is called with SWITCHDEV_F_NO_RECUSE to limit switch ID user-visiblity to only port netdevs. So when a port is stacked under bond/bridge, the user can only query switch id via the switch ports, but not via the upper devices Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: introduce get/set attrs opsScott Feldman1-0/+169
Add two new swdev ops for get/set switch port attributes. Most swdev interactions on a port are gets or sets on port attributes, so rather than adding ops for each attribute, let's define clean get/set ops for all attributes, and then we can have clear, consistent rules on how attributes propagate on stacked devs. Add the basic algorithms for get/set attr ops. Use the same recusive algo to walk lower devs we've used for STP updates, for example. For get, compare attr value for each lower dev and only return success if attr values match across all lower devs. For sets, set the same attr value for all lower devs. We'll use a two-phase prepare-commit transaction model for sets. In the first phase, the driver(s) are asked if attr set is OK. If all OK, the commit attr set in second phase. A driver would NACK the prepare phase if it can't set the attr due to lack of resources or support, within it's control. RTNL lock must be held across both phases because we'll recurse all lower devs first in prepare phase, and then recurse all lower devs again in commit phase. If any lower dev fails the prepare phase, we need to abort the transaction for all lower devs. If lower dev recusion isn't desired, allow a flag SWITCHDEV_F_NO_RECURSE to indicate get/set only work on port (lowest) device. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: s/swdev_/switchdev_/Jiri Pirko1-20/+20
Turned out that "switchdev" sticks. So just unify all related terms to use this prefix. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-13switchdev: s/netdev_switch_/switchdev_/ and s/NETDEV_SWITCH_/SWITCHDEV_/Jiri Pirko1-67/+67
Turned out that "switchdev" sticks. So just unify all related terms to use this prefix. Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23switchdev: fix stp update API to work with layered netdevicesRoopa Prabhu1-4/+13
make it same as the netdev_switch_port_bridge_setlink/dellink api (ie traverse lowerdevs to get to the switch port). removes "WARN_ON(!ops->ndo_switch_parent_id_get)" because direct bridge ports can be stacked netdevices (like bonds and team of switch ports) which may not implement this ndo. v2 to v3: - remove changes to bond and team. Bring back the transparently following lowerdevs like i initially had for setlink/getlink (http://www.spinics.net/lists/netdev/msg313436.html) dave and scott feldman also seem to prefer it be that way and move to non-transparent way of doing things if we see a problem down the lane. v3 to v4: - fix ret initialization v4 to v5: - return err on first failure (scott feldman) v5 to v6: - change variable name (err) and initialize to -EOPNOTSUPP (scott feldman). Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Acked-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-16switchdev: use new swdev opsScott Feldman1-21/+21
Move swdev wrappers over to new swdev ops (from previous ndo ops). No functional changes to the implementation. Signed-off-by: Scott Feldman <sfeldma@gmail.com> rocker: move to new swdev ops Signed-off-by: Scott Feldman <sfeldma@gmail.com> dsa: move to new swdev ops Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-12switchdev: correct spelling of notifier in commentsSimon Horman1-3/+3
Signed-off-by: Simon Horman <simon.horman@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-10switchdev: add netlink flags to IPv4 FIB add opScott Feldman1-2/+5
Pass in the netlink flags (NLM_F_*) into switchdev driver for IPv4 FIB add op to allow driver to 1) optimize hardware updates, 2) handle ip route prepend and append commands correctly. Suggested-by: Jamal Hadi Salim <jhs@mojatatu.com> Suggested-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-09switchdev: use gpl variant of symbol exportJiri Pirko1-12/+12
Signed-off-by: Jiri Pirko <jiri@resnulli.us> Acked-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Andy Gospodarek <gospo@cumulusnetworks.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-06switchdev: fix CONFIG_IP_MULTIPLE_TABLES compile issueScott Feldman1-2/+6
Signed-off-by: Scott Feldman <sfeldma@gmail.com> Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-06fib: hook IPv4 fib for hardware offloadScott Feldman1-2/+26
Call into the switchdev driver any time an IPv4 fib entry is added/modified/deleted from the kernel's FIB. The switchdev driver may or may not install the route to the offload device. In the case where the driver tries to install the route and something goes wrong (device's routing table is full, etc), then all of the offloaded routes will be flushed from the device, route forwarding falls back to the kernel, and no more routes are offloading. We can refine this logic later. For now, use the simplist model of offloading routes up to the point of failure, and then on failure, undo everything and mark IPv4 offloading disabled. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-06switchdev: implement IPv4 fib ndo wrappersScott Feldman1-2/+96
Flesh out ndo wrappers to call into device driver. To call into device driver, the wrapper must interate over route's nexthops to ensure all nexthop devs belong to the same switch device. Currently, there is no support for route's nexthops spanning offloaded and non-offloaded devices, or spanning ports of multiple offload devices. Since switch device ports may be stacked under virtual interfaces (bonds and/or bridges), and the route's nexthop may be on the virtual interface, the wrapper will traverse the nexthop dev down to the base dev. It's the base dev that's passed to the switchdev driver's ndo ops. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-06switchdev: don't support custom ip rules, for nowScott Feldman1-0/+4
Keep switchdev FIB offload model simple for now and don't allow custom ip rules. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-06switchdev: add IPv4 fib ndo ops wrappersScott Feldman1-0/+39
Add IPv4 fib ndo wrapper funcs and stub them out for now. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-02-19Merge branch 'kconfig' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild Pull kconfig updates from Michal Marek: "Yann E Morin was supposed to take over kconfig maintainership, but this hasn't happened. So I'm sending a few kconfig patches that I collected: - Fix for missing va_end in kconfig - merge_config.sh displays used if given too few arguments - s/boolean/bool/ in Kconfig files for consistency, with the plan to only support bool in the future" * 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild: kconfig: use va_end to match corresponding va_start merge_config.sh: Display usage if given too few arguments kconfig: use bool instead of boolean for type definition attributes
2015-02-02swdevice: add new apis to set and del bridge port attributesRoopa Prabhu1-0/+110
This patch adds two new api's netdev_switch_port_bridge_setlink and netdev_switch_port_bridge_dellink to offload bridge port attributes to switch port (The names of the apis look odd with 'switch_port_bridge', but am more inclined to change the prefix of the api to something else. Will take any suggestions). The api's look at the NETIF_F_HW_SWITCH_OFFLOAD feature flag to pass bridge port attributes to the port device. Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-01-18switchdev: introduce switchdev notifierJiri Pirko1-0/+65
This patch introduces new notifier for purposes of exposing events which happen on switch driver side. The consumers of the event messages are mainly involved masters, namely bridge and ovs. Suggested-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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