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path: root/drivers/net
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2019-02-08mlxsw: spectrum_router: Use struct_size() in kzalloc()Gustavo A. R. Silva
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = kzalloc(size, GFP_KERNEL) Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL) Notice that, in this case, variable alloc_size is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08bnx2x: Use struct_size() in kzalloc()Gustavo A. R. Silva
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = kzalloc(size, GFP_KERNEL) Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL) Notice that, in this case, variable fsz is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08wimax/i2400m: use struct_size() helperGustavo A. R. Silva
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; void *entry[]; }; size = sizeof(struct foo) + count * sizeof(void *); instance = alloc(size, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: size = struct_size(instance, entry, count); This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08wan: wanxl: use struct_size() in kzalloc()Gustavo A. R. Silva
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = alloc(size, GFP_KERNEL) Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = alloc(struct_size(instance, entry, count), GFP_KERNEL) Notice that, in this case, variable alloc_size is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: usb: cdc-phonet: use struct_size() in alloc_netdev()Gustavo A. R. Silva
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; void *entry[]; }; instance = alloc(sizeof(struct foo) + count * sizeof(void *)); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = alloc(struct_size(instance, entry, count)); This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08qede: Add ethtool interface for SmartAN query.Sudarsana Reddy Kalluru
The patch adds driver support to query SmartAN capability via ethtool. Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com> Signed-off-by: Ariel Elior <aelior@marvell.com> Signed-off-by: Michal Kalderon <mkalderon@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08qed: Add API for SmartAN query.Sudarsana Reddy Kalluru
The patch adds driver interface to read the SmartAN capability from management firmware. Signed-off-by: Sudarsana Reddy Kalluru <skalluru@marvell.com> Signed-off-by: Ariel Elior <aelior@marvell.com> Signed-off-by: Michal Kalderon <mkalderon@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: dsa: bcm_sf2: Allow looping back CFP rulesFlorian Fainelli
When the source and destination port of a CFP rule match, we must set the loopback bit enable to allow that, otherwise the frame is discarded. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: dsa: bcm_sf2: Add support for CFP statisticsFlorian Fainelli
Return CFP policer statistics (Green, Yellow or Red) as part of the standard ethtool statistics. This helps debug when CFP rules may not be hit (0 counter). Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: dsa: bcm_sf2: Prepare for adding CFP statisticsFlorian Fainelli
In preparation for adding CFP statistics, we will need to overlay the standard B53 statistics, so create specific bcm_sf2_sw_* functions to call into their b53_common.c counterpart. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: dsa: bcm_sf2: Remove stats mutexFlorian Fainelli
We no longer need a dedicated statistics mutex since we leverage b53_common for statistics now. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: phy: consider latched link-down status in polling modeHeiner Kallweit
The link status value latches link-down events. To get the current status we read the register twice in genphy_update_link(). There's a potential risk that we miss a link-down event in polling mode. This may cause issues if the user e.g. connects his machine to a different network. On the other hand reading the latched value may cause issues in interrupt mode. Following scenario: - After boot link goes up - phy_start() is called triggering an aneg restart, hence link goes down and link-down info is latched. - After aneg has finished link goes up and triggers an interrupt. Interrupt handler reads link status, means it reads the latched "link is down" info. But there won't be another interrupt as long as link stays up, therefore phylib will never recognize that link is up. Deal with both scenarios by reading the register twice in interrupt mode only. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: macb: add sam9x60-macb compatibility stringNicolas Ferre
Add a new compatibility string for this product. It's using at91sam9260-macb layout but has a newer hardware revision: it's safer to use its own string. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: sfp: do not probe SFP module before we're attachedRussell King
When we probe a SFP module, we expect to be able to call the upstream device's module_insert() function so that the upstream link can be configured. However, when the upstream device is delayed, we currently may end up probing the module before the upstream device is available, and lose the module_insert() call. Avoid this by holding off probing the module until the SFP bus is properly connected to both the SFP socket driver and the upstream driver. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08mlxsw: spectrum_acl: Add couple of vregion rehash tracepointsJiri Pirko
As vregion rehash is happening in delayed work, add some visibility to the process using a few tracepoints. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08mlxsw: spectrum: add "acl_region_rehash_interval" devlink paramJiri Pirko
Expose new driver-specific "acl_region_rehash_interval" devlink param which would allow user to alter default ACL region rehash interval. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08mlxsw: spectrum_acl: Implement region migration according to hintsJiri Pirko
If the hints are returned, the migration should be started. For that to happen, there is a need to create a second physical region in TCAM with new ERP set by passing the hints and then move chunk by chunk, entry by entry. During the transition, two lookups will occur. One in old region and another in new region. The highest priority rule will be chosen. In an unlikely case that the migration will fail and also rollback to original region will fail the vregion will become in bad state. Everything will work, only no future rehash will be possible. In a follow-up work, this can be resolved by trying to resume the rollback in delayed work and repair the vregion. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08mlxsw: reg: Add multi field to PAGT registerJiri Pirko
For Spectrum-2 this allows parallel lookups in multiple regions. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08mlxsw: spectrum_acl: Pass hints priv all the way to ERP codeJiri Pirko
The hints priv comes from ERP code and it is possible to obtain it from TCAM code. Add arg to appropriate functions so the hints priv could be passed back down to ERP code. Pass NULL now as the follow-up patches would pass an actual hints priv pointer. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08mlxsw: spectrum_acl: Implement basic ERP rehash hits creationJiri Pirko
Introduce an initial implementation of rehash logic in ERP code. Currently, the rehash is considered as needed only in case number of roots in the hints is smaller than the number of roots actually in use. In that case return hints pointer and let it be obtained through the callpath through the Spectrum-2 TCAM op. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08mlxsw: spectrum_acl: Split entry struct into entry and ventryJiri Pirko
Do the split of entry struct so the new entry struct is related to the actual HW entry, whereas ventry struct is a SW abstration of that. This split prepares possibility for ventry to hold 2 HW entries which is needed for region ERP rehash flow. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08mlxsw: spectrum_acl: Split chunk struct into chunk and vchunkJiri Pirko
Do the split of chunk struct so the new chunk struct is related to the actual HW chunk (differs between Spectrum and Spectrum-2), whereas vchunk struct is a SW abstraction of that. This split prepares possibility for vchunk to hold 2 HW chunks which is needed for region ERP rehash flow. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08mlxsw: spectrum_acl: Split region struct into region and vregionJiri Pirko
Do the split of region struct so the new region struct is related to the actual HW region, whereas vregion struct is a SW abstration of that. This split prepares possibility for vregion to hold 2 HW regions which is needed for region ERP rehash flow. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08lib: objagg: implement optimization hints assembly and use hints for object ↵Jiri Pirko
creation Implement simple greedy algo to find more optimized root-delta tree for a given objagg instance. This "hints" can be used by a driver to: 1) check if the hints are better (driver's choice) than the original objagg tree. Driver does comparison of objagg stats and hints stats. 2) use the hints to create a new objagg instance which will construct the root-delta tree according to the passed hints. Currently, only a simple greedy algorithm is implemented. Basically it finds the roots according to the maximal possible user count including deltas. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08devlink: publish params only after driver init is doneJiri Pirko
Currently, user can do dump or get of param values right after the devlink params are registered. However the driver may not be initialized which is an issue. The same problem happens during notification upon param registration. Allow driver to publish devlink params whenever it is ready to handle get() ops. Note that this cannot be resolved by init reordering, as the "driverinit" params have to be available before the driver is initialized (it needs the param values there). Signed-off-by: Jiri Pirko <jiri@mellanox.com> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
An ipvlan bug fix in 'net' conflicted with the abstraction away of the IPV6 specific support in 'net-next'. Similarly, a bug fix for mlx5 in 'net' conflicted with the flow action conversion in 'net-next'. Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08xen-netback: mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: wimax/i2400m: mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: fddi: skfp: Mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: usb: rtl8150: mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: usb: pegasus: Mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08net: appletalk: cops: mark expected switch fall-throughGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Notice that, in this particular case, the fall-through annotation is placed at the beginning of the code comment, which is what GCC is expecting to find. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08veth: Mark expected switch fall-throughsGustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enabling -Wimplicit-fallthrough. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08nfp: flower: remove unused index from nfp_fl_pedit()Pablo Neira Ayuso
Static checker warning complains on uninitialized variable: drivers/net/ethernet/netronome/nfp/flower/action.c:618 nfp_fl_pedit() error: uninitialized symbol 'idx'. Which is actually never used from the functions that take it as parameter. Remove it. Fixes: 738678817573 ("drivers: net: use flow action infrastructure") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08sfc: add bundle partition definitions to mtdPaul Fox
Signed-off-by: Paul Fox <pfox@solarflare.com> Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-08ipvlan: decouple l3s mode dependencies from other modesDaniel Borkmann
Right now ipvlan has a hard dependency on CONFIG_NETFILTER and otherwise it cannot be built. However, the only ipvlan operation mode that actually depends on netfilter is l3s, everything else is independent of it. Break this hard dependency such that users are able to use ipvlan l3 mode on systems where netfilter is not compiled in. Therefore, this adds a hidden CONFIG_IPVLAN_L3S bool which is defaulting to y when CONFIG_NETFILTER is set in order to retain existing behavior for l3s. All l3s related code is refactored into ipvlan_l3s.c that is compiled in when enabled. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Cc: Mahesh Bandewar <maheshb@google.com> Cc: Florian Westphal <fw@strlen.de> Cc: Martynas Pumputis <m@lambda.lt> Acked-by: Florian Westphal <fw@strlen.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07net: dsa: b53: Fix for failure when irq is not defined in dtArun Parameswaran
Fixes the issues with non BCM58XX chips in the b53 driver failing, when the irq is not specified in the device tree. Removed the check for BCM58XX in b53_srab_prepare_irq(), so the 'port->irq' will be set to '-EXIO' if the irq is not specified in the device tree. Fixes: 16994374a6fc ("net: dsa: b53: Make SRAB driver manage port interrupts") Fixes: b2ddc48a81b5 ("net: dsa: b53: Do not fail when IRQ are not initialized") Signed-off-by: Arun Parameswaran <arun.parameswaran@broadcom.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07net: phy: let genphy_c45_read_link manage the devices to checkHeiner Kallweit
Let genphy_c45_read_link manage the devices to check, this removes overhead from callers. Add C22EXT to the list of excluded devices because it doesn't implement the status register. According to the 802.3 clause 45 spec registers 29.0 - 29.4 are reserved. At the moment we have very few clause 45 PHY drivers, so we are lacking experience whether other drivers will have to exclude further devices, or may need to check PHY XS. If we should figure out that list of devices to check needs to be configurable, I think best will be to add a device list member to struct phy_driver. v2: - adjusted commit message - exclude also device C22EXT from link checking Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07net: fixed-phy: Add fixed_phy_register_with_gpiod() APIMoritz Fischer
Add fixed_phy_register_with_gpiod() API. It lets users create a fixed_phy instance that uses a GPIO descriptor which was obtained externally e.g. through platform data. This enables platform devices (non-DT based) to use GPIOs for link status. Signed-off-by: Moritz Fischer <mdf@kernel.org> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07net: marvell: neta: add comphy supportRussell King
Add support for the common phy binding, so that we can reconfigure the comphy according to the desired ethernet speed. This will allow us to support 1000base-X and 2500base-X SFPs dynamically on SolidRun Clearfog. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07net: vxlan: Free a leaked vetoed multicast rdstPetr Machata
When an rdst is rejected by a driver, the current code removes it from the remote list, but neglects to free it. This is triggered by tools/testing/selftests/drivers/net/mlxsw/vxlan_fdb_veto.sh and shows as the following kmemleak trace: unreferenced object 0xffff88817fa3d888 (size 96): comm "softirq", pid 0, jiffies 4372702718 (age 165.252s) hex dump (first 32 bytes): 02 00 00 00 c6 33 64 03 80 f5 a2 61 81 88 ff ff .....3d....a.... 06 df 71 ae ff ff ff ff 0c 00 00 00 04 d2 6a 6b ..q...........jk backtrace: [<00000000296b27ac>] kmem_cache_alloc_trace+0x1ae/0x370 [<0000000075c86dc6>] vxlan_fdb_append.part.12+0x62/0x3b0 [vxlan] [<00000000e0414b63>] vxlan_fdb_update+0xc61/0x1020 [vxlan] [<00000000f330c4bd>] vxlan_fdb_add+0x2e8/0x3d0 [vxlan] [<0000000008f81c2c>] rtnl_fdb_add+0x4c2/0xa10 [<00000000bdc4b270>] rtnetlink_rcv_msg+0x6dd/0x970 [<000000006701f2ce>] netlink_rcv_skb+0x290/0x410 [<00000000c08a5487>] rtnetlink_rcv+0x15/0x20 [<00000000d5f54b1e>] netlink_unicast+0x43f/0x5e0 [<00000000db4336bb>] netlink_sendmsg+0x789/0xcd0 [<00000000e1ee26b6>] sock_sendmsg+0xba/0x100 [<00000000ba409802>] ___sys_sendmsg+0x631/0x960 [<000000003c332113>] __sys_sendmsg+0xea/0x180 [<00000000f4139144>] __x64_sys_sendmsg+0x78/0xb0 [<000000006d1ddc59>] do_syscall_64+0x94/0x410 [<00000000c8defa9a>] entry_SYSCALL_64_after_hwframe+0x49/0xbe Move vxlan_dst_free() up and schedule a call thereof to plug this leak. Fixes: 61f46fe8c646 ("vxlan: Allow vetoing of FDB notifications") Signed-off-by: Petr Machata <petrm@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07geneve: should not call rt6_lookup() when ipv6 was disabledHangbin Liu
When we add a new GENEVE device with IPv6 remote, checking only for IS_ENABLED(CONFIG_IPV6) is not enough as we may disable IPv6 in the kernel command line (ipv6.disable=1), and calling rt6_lookup() would cause a NULL pointer dereference. v2: - don't mix declarations and code (reported by Stefano Brivio, Eric Dumazet) - there's no need to use in6_dev_get() as we only need to check that idev exists (reported by David Ahern). This is under RTNL, so we can simply use __in6_dev_get() instead (Stefano, Eric). Reported-by: Jianlin Shi <jishi@redhat.com> Fixes: c40e89fd358e9 ("geneve: configure MTU based on a lower device") Cc: Alexey Kodanev <alexey.kodanev@oracle.com> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07net/mlx5e: Add tx timeout support for mlx5e tx reporterEran Ben Elisha
With this patch, ndo_tx_timeout callback will be redirected to the tx reporter in order to detect a tx timeout error and report it to the devlink health. (The watchdog detects tx timeouts, but the driver verify the issue still exists before launching any recover method). In addition, recover from tx timeout in case of lost interrupt was added to the tx reporter recover method. The tx timeout recover from lost interrupt is not a new feature in the driver, this patch re-organize the functionality and move it to the tx reporter recovery flow. tx timeout example: (with auto_recover set to false, if set to true, the manual recover and diagnose sections are irrelevant) $cat /sys/kernel/debug/tracing/trace ... devlink_health_report: bus_name=pci dev_name=0000:00:09.0 driver_name=mlx5_core reporter_name=tx: TX timeout on queue: 0, SQ: 0x8a, CQ: 0x35, SQ Cons: 0x2 SQ Prod: 0x2, usecs since last trans: 14912000 $devlink health show pci/0000:00:09.0: name tx state healthy #err 1 #recover 0 last_dump_ts N/A parameters: grace_period 500 auto_recover false $devlink health diagnose pci/0000:00:09.0 reporter tx -j -p { "SQs": [ { "sqn": 138, "HW state": 1, "stopped": true },{ "sqn": 142, "HW state": 1, "stopped": false } ] } $devlink health diagnose pci/0000:00:09.0 reporter tx SQs: sqn: 138 HW state: 1 stopped: true sqn: 142 HW state: 1 stopped: false $devlink health recover pci/0000:00:09 reporter tx $devlink health show pci/0000:00:09.0: name tx state healthy #err 1 #recover 1 last_dump_ts N/A parameters: grace_period 500 auto_recover false Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Reviewed-by: Moshe Shemesh <moshe@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07net/mlx5e: Add tx reporter supportEran Ben Elisha
Add mlx5e tx reporter to devlink health reporters. This reporter will be responsible for diagnosing, reporting and recovering of tx errors. This patch declares the TX reporter operations and creates it using the devlink health API. Currently, this reporter supports reporting and recovering from send error CQE only. In addition, it adds diagnose information for the open SQs. For a local SQ recover (due to driver error report), in case of SQ recover failure, the recover operation will be considered as a failure. For a full tx recover, an attempt to close and open the channels will be done. If this one passed successfully, it will be considered as a successful recover. The SQ recover from error CQE flow is not a new feature in the driver, this patch re-organize the functions and adapt them for the devlink health API. For this purpose, move code from en_main.c to a new file named reporter_tx.c. Diagnose output: $devlink health diagnose pci/0000:00:09.0 reporter tx -j -p { "SQs": [ { "sqn": 138, "HW state": 1, "stopped": false },{ "sqn": 142, "HW state": 1, "stopped": false } ] } $devlink health diagnose pci/0000:00:09.0 reporter tx SQs: sqn: 138 HW state: 1 stopped: false sqn: 142 HW state: 1 stopped: false Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Reviewed-by: Moshe Shemesh <moshe@mellanox.com> Acked-by: Saeed Mahameed <saeedm@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07net: phy: fixed_phy: Fix fixed_phy not checking GPIOMoritz Fischer
Fix fixed_phy not checking GPIO if no link_update callback is registered. In the original version all users registered a link_update callback so the issue was masked. Fixes: a5597008dbc2 ("phy: fixed_phy: Add gpio to determine link up/down.") Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07mt76x0u: fix suspend/resumeStanislaw Gruszka
We need to reset MCU and do other initializations on resume otherwise MT7610U device will fail to initialize, what cause system hung due to USB requests timeouts. Patch fixes 4.19 -> 4.20 regression. Cc: stable@vger.kernel.org # 4.20+ Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Acked-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2019-02-06net: emac: remove IBM_EMAC_RX_SKB_HEADROOMChristian Lamparter
The EMAC driver had a custom IBM_EMAC_RX_SKB_HEADROOM Kconfig option that reserved additional skb headroom for RX. This patch removes the option and migrates the code to use napi_alloc_skb() and netdev_alloc_skb_ip_align() in its place. Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06net: Don't default Cavium PTP driver to 'y'Bjorn Helgaas
8c56df372bc1 ("net: add support for Cavium PTP coprocessor") added the Cavium PTP coprocessor driver and enabled it by default. Remove the "default y" because the driver only applies to Cavium ThunderX processors. Fixes: 8c56df372bc1 ("net: add support for Cavium PTP coprocessor") Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06net: phy: improve genphy_c45_read_linkHeiner Kallweit
Let's make genphy_c45_read_link behave the same as genphy_update_link and set phydev->link in the function directly. This allows to simplify the callers. In addition don't check further devices once we detect that at least one device reports link as down. v2: - remove an unused variable Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-06net: broadcom: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop ↵Yang Wei
profiles dev_consume_skb_irq() should be called in sbdma_tx_process() when skb xmit done. It makes drop profiles(dropwatch, perf) more friendly. Signed-off-by: Yang Wei <yang.wei9@zte.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>