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* taprio: Handle short intervals and large packetsKurt Kanzenbach2021-03-191-10/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When using short intervals e.g. below one millisecond, large packets won't be transmitted at all. The software implementations checks whether the packet can be fit into the remaining interval. Therefore, it takes the packet length and the transmission speed into account. That is correct. However, for large packets it may be that the transmission time exceeds the interval resulting in no packet transmission. The same situation works fine with hardware offloading applied. The problem has been observed with the following schedule and iperf3: |tc qdisc replace dev lan1 parent root handle 100 taprio \ | num_tc 8 \ | map 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 \ | queues 1@0 1@1 1@2 1@3 1@4 1@5 1@6 1@7 \ | base-time $base \ | sched-entry S 0x40 500000 \ | sched-entry S 0xbf 500000 \ | clockid CLOCK_TAI \ | flags 0x00 [...] |root@tsn:~# iperf3 -c 192.168.2.105 |Connecting to host 192.168.2.105, port 5201 |[ 5] local 192.168.2.121 port 52610 connected to 192.168.2.105 port 5201 |[ ID] Interval Transfer Bitrate Retr Cwnd |[ 5] 0.00-1.00 sec 45.2 KBytes 370 Kbits/sec 0 1.41 KBytes |[ 5] 1.00-2.00 sec 0.00 Bytes 0.00 bits/sec 0 1.41 KBytes After debugging, it seems that the packet length stored in the SKB is about 7000-8000 bytes. Using a 100 Mbit/s link the transmission time is about 600us which larger than the interval of 500us. Therefore, segment the SKB into smaller chunks if the packet is too big. This yields similar results than the hardware offload: |root@tsn:~# iperf3 -c 192.168.2.105 |Connecting to host 192.168.2.105, port 5201 |- - - - - - - - - - - - - - - - - - - - - - - - - |[ ID] Interval Transfer Bitrate Retr |[ 5] 0.00-10.00 sec 48.9 MBytes 41.0 Mbits/sec 0 sender |[ 5] 0.00-10.02 sec 48.7 MBytes 40.7 Mbits/sec receiver Furthermore, the segmentation can be skipped for the full offload case, as the driver or the hardware is expected to handle this. Signed-off-by: Kurt Kanzenbach <kurt@linutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* ethernet: avoid retpoline overhead on TEB (GENEVE, NvGRE, VxLAN) GROAlexander Lobakin2021-03-191-3/+8
| | | | | | | | | | | | The two most popular headers going after Ethernet are IPv4 and IPv6. Retpoline overhead for them is addressed only in dev_gro_receive(), when they lie right after the outermost Ethernet header. Use the indirect call wrappers in TEB (Transparent Ethernet Bridging, such as GENEVE, NvGRE, VxLAN etc.) GRO receive code to reduce the penalty when processing the inner headers. Signed-off-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: David S. Miller <davem@davemloft.net>
* vlan/8021q: avoid retpoline overhead on GROAlexander Lobakin2021-03-191-2/+8
| | | | | | | | | | | | The two most popular headers going after VLAN are IPv4 and IPv6. Retpoline overhead for them is addressed only in dev_gro_receive(), when they lie right after the outermost Ethernet header. Use the indirect call wrappers in VLAN GRO receive code to reduce the penalty on receiving tagged frames (when hardware stripping is off or not available). Signed-off-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: David S. Miller <davem@davemloft.net>
* /net/core/: fix misspellings using codespell toolXiong Zhenwu2021-03-191-1/+1
| | | | | | | | | | | | A typo is found out by codespell tool in 1734th line of drop_monitor.c: $ codespell ./net/core/ ./net/core/drop_monitor.c:1734: guarnateed ==> guaranteed Fix a typo found by codespell. Signed-off-by: Xiong Zhenwu <xiong.zhenwu@zte.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
* /net/hsr: fix misspellings using codespell toolXiong Zhenwu2021-03-191-1/+1
| | | | | | | | | | | | | A typo is found out by codespell tool in 111th line of hsr_debugfs.c: $ codespell ./net/hsr/ net/hsr/hsr_debugfs.c:111: Debufs ==> Debugfs Fix typos found by codespell. Signed-off-by: Xiong Zhenwu <xiong.zhenwu@zte.com.cn> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: Add helper to resolve bridge port from DSA portTobias Waldekranz2021-03-191-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order for a driver to be able to query a bridge for information about itself, e.g. reading out port flags, it has to use a netdev that is known to the bridge. In the simple case, that is just the netdev representing the port, e.g. swp0 or swp1 in this example: br0 / \ swp0 swp1 But in the case of an offloaded lag, this will be the bond or team interface, e.g. bond0 in this example: br0 / bond0 / \ swp0 swp1 Add a helper that hides some of this complexity from the drivers. Then, redefine dsa_port_offloads_bridge_port using the helper to avoid double accounting of the set of possible offloaded uppers. Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: NULL the old xps map entries when freeing themAntoine Tenart2021-03-181-0/+1
| | | | | | | | | In __netif_set_xps_queue, old map entries from the old dev_maps are freed but their corresponding entry in the old dev_maps aren't NULLed. Fix this. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: fix use after free in xpsAntoine Tenart2021-03-181-5/+12
| | | | | | | | | | | | | | | | When setting up an new dev_maps in __netif_set_xps_queue, we remove and free maps from unused CPUs/rx-queues near the end of the function; by calling remove_xps_queue. However it's possible those maps are also part of the old not-freed-yet dev_maps, which might be used concurrently. When that happens, a map can be freed while its corresponding entry in the old dev_maps table isn't NULLed, leading to: "BUG: KASAN: use-after-free" in different places. This fixes the map freeing logic for unused CPUs/rx-queues, to also NULL the map entries from the old dev_maps table. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-sysfs: move the xps cpus/rxqs retrieval in a common functionAntoine Tenart2021-03-181-77/+48
| | | | | | | | | | Most of the xps_cpus_show and xps_rxqs_show functions share the same logic. Having it in two different functions does not help maintenance. This patch moves their common logic into a new function, xps_queue_show, to improve this. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-sysfs: move the rtnl unlock up in the xps show helpersAntoine Tenart2021-03-181-14/+11
| | | | | | | | | | | | | Now that nr_ids and num_tc are stored in the xps dev_maps, which are RCU protected, we do not have the need to protect the maps in the rtnl lock. Move the rtnl unlock up so we reduce the rtnl locking section. We also increase the reference count on the subordinate device if any, as we don't want this device to be freed while we use it (now that the rtnl lock isn't protecting it in the whole function). Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: improve queue removal readability in __netif_set_xps_queueAntoine Tenart2021-03-181-6/+9
| | | | | | | | | Improve the readability of the loop removing tx-queue from unused CPUs/rx-queues in __netif_set_xps_queue. The change should only be cosmetic. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: add an helper to copy xps maps to the new dev_mapsAntoine Tenart2021-03-181-20/+25
| | | | | | | | | This patch adds an helper, xps_copy_dev_maps, to copy maps from dev_maps to new_dev_maps at a given index. The logic should be the same, with an improved code readability and maintenance. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: move the xps maps to an arrayAntoine Tenart2021-03-182-45/+34
| | | | | | | | | | | | | Move the xps maps (xps_cpus_map and xps_rxqs_map) to an array in net_device. That will simplify a lot the code removing the need for lots of if/else conditionals as the correct map will be available using its offset in the array. This should not modify the xps maps behaviour in any way. Suggested-by: Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: remove the xps possible_maskAntoine Tenart2021-03-182-29/+15
| | | | | | | | | | Remove the xps possible_mask. It was an optimization but we can just loop from 0 to nr_ids now that it is embedded in the xps dev_maps. That simplifies the code a bit. Suggested-by: Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: embed nr_ids in the xps mapsAntoine Tenart2021-03-182-40/+43
| | | | | | | | | | Embed nr_ids (the number of cpu for the xps cpus map, and the number of rxqs for the xps cpus map) in dev_maps. That will help not accessing out of bound memory if those values change after dev_maps was allocated. Suggested-by: Alexander Duyck <alexander.duyck@gmail.com> Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: embed num_tc in the xps mapsAntoine Tenart2021-03-182-50/+58
| | | | | | | | | | | | | | | | | | | | | | The xps cpus/rxqs map is accessed using dev->num_tc, which is used when allocating the map. But later updates of dev->num_tc can lead to having a mismatch between the maps and how they're accessed. In such cases the map values do not make any sense and out of bound accesses can occur (that can be easily seen using KASAN). This patch aims at fixing this by embedding num_tc into the maps, using the value at the time the map is created. This brings two improvements: - The maps can be accessed using the embedded num_tc, so we know for sure we won't have out of bound accesses. - Checks can be made before accessing the maps so we know the values retrieved will make sense. We also update __netif_set_xps_queue to conditionally copy old maps from dev_maps in the new one only if the number of traffic classes from both maps match. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-sysfs: make xps_cpus_show and xps_rxqs_show consistentAntoine Tenart2021-03-181-15/+18
| | | | | | | | | | Make the implementations of xps_cpus_show and xps_rxqs_show to converge, as the two share the same logic but diverted over time. This should not modify their behaviour but will help future changes and improve maintenance. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-sysfs: store the return of get_netdev_queue_index in an unsigned intAntoine Tenart2021-03-181-4/+7
| | | | | | | | | In net-sysfs, get_netdev_queue_index returns an unsigned int. Some of its callers use an unsigned long to store the returned value. Update the code to be consistent, this should only be cosmetic. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net-sysfs: convert xps_cpus_show to bitmap_zallocAntoine Tenart2021-03-181-6/+6
| | | | | | | | | Use bitmap_zalloc instead of zalloc_cpumask_var in xps_cpus_show to align with xps_rxqs_show. This will improve maintenance and allow us to factorize the two functions. The function should behave the same. Signed-off-by: Antoine Tenart <atenart@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: tag_brcm: add support for legacy tagsÁlvaro Fernández Rojas2021-03-172-3/+111
| | | | | | | | Add support for legacy Broadcom tags, which are similar to DSA_TAG_PROTO_BRCM. These tags are used on BCM5325, BCM5365 and BCM63xx switches. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: remove some unnecessary warningsJon Maloy2021-03-172-21/+16
| | | | | | | | | | | | | We move some warning printouts to more strategic locations to avoid duplicates and yield more detailed information about the reported problem. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: add host-endian copy of user subscription to struct tipc_subscriptionJon Maloy2021-03-173-40/+37
| | | | | | | | | | | | | We reduce and localize the usage of the tipc_sub_xx() macros by adding a corresponding member, with fields set in host-endian format, to struct tipc_subscription. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: simplify api between binding table and topology serverJon Maloy2021-03-173-48/+43
| | | | | | | | | | | | | | | The function tipc_report_overlap() is called from the binding table with numerous parameters taken from an instance of struct publication. A closer look reveals that it always is safe to send along a pointer to the instance itself, and hence reduce the call signature. We do that in this commit. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: simplify signature of tipc_find_service()Jon Maloy2021-03-173-27/+39
| | | | | | | | | | | | | | | We reduce the signature of tipc_find_service() and tipc_create_service(). The reason for doing this might not be obvious, but we plan to let struct tipc_uaddr contain information that is relevant for these functions in a later commit. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: simplify signature of tipc_service_find_range()Jon Maloy2021-03-171-6/+8
| | | | | | | | | | | | We simplify the signatures of the functions tipc_service_create_range() and tipc_service_find_range(). Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: simplify signature of tipc_nametbl_lookup_group()Jon Maloy2021-03-173-36/+27
| | | | | | | | | | | | | We reduce the signature of tipc_nametbl_lookup_group() by using a struct tipc_uaddr pointer. This entails a couple of minor changes in the functions tipc_send_group_mcast/anycast/unicast/bcast() in socket.c Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: simplify signature of tipc_nametbl_lookup_mcast_nodes()Jon Maloy2021-03-173-16/+14
| | | | | | | | | | | | We follow up the preceding commits by reducing the signature of the function tipc_nametbl_lookup_mcast_nodes(). Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: simplify signature of tipc_namtbl_lookup_mcast_sockets()Jon Maloy2021-03-173-19/+18
| | | | | | | | | | | | We reduce the signature of this function according to the same principle as the preceding commits. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: refactor tipc_sendmsg() and tipc_lookup_anycast()Jon Maloy2021-03-174-95/+91
| | | | | | | | | | | | | | | We simplify the signature if function tipc_nametbl_lookup_anycast(), using address structures instead of discrete integers. This also makes it possible to make some improvements to the functions __tipc_sendmsg() in socket.c and tipc_msg_lookup_dest() in msg.c. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: rename binding table lookup functionsJon Maloy2021-03-174-37/+56
| | | | | | | | | | | | | | | | The binding table provides four different lookup functions, which purpose is not obvious neither by their names nor by the (lack of) descriptions. We now give these functions names that better match their purposes, and improve the comments that describe what they are doing. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: simplify signature of tipc_nametbl_withdraw() functionsJon Maloy2021-03-175-68/+70
| | | | | | | | | | | | | Following the principles of the preceding commits, we reduce the number of parameters passed along in tipc_sk_withdraw(), tipc_nametbl_withdraw() and associated functions. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: simplify call signatures for publication creationJon Maloy2021-03-173-40/+34
| | | | | | | | | | | | We simplify the call signatures for tipc_nametbl_insert_publ() and tipc_publ_create() so that fewer parameters are passed around. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: simplify signature of tipc_namtbl_publish()Jon Maloy2021-03-175-58/+68
| | | | | | | | | | | | | Using the new address structure tipc_uaddr, we simplify the signature of function tipc_sk_publish() and tipc_namtbl_publish() so that fewer parameters need to be passed around. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: introduce new unified address type for internal useJon Maloy2021-03-172-1/+46
| | | | | | | | | | | | | | We introduce a simplified version of struct sockaddr_tipc, using anonymous unions and structures. Apart from being nicer to work with, this struct will come in handy when we in a later commit add another address type. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: move creation of publication item one level up in call chainJon Maloy2021-03-171-33/+32
| | | | | | | | | | | | | | | | We instantiate struct publication in tipc_nametbl_insert_publ() instead of as currently in tipc_service_insert_publ(). This has the advantage that we can pass a pointer to the publication struct to the next call levels, instead of the numerous individual parameters we pass on now. It also gives us a location to keep the contents of the additional fields we will introduce in a later commit. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* tipc: re-organize members of struct publicationJon Maloy2021-03-174-97/+92
| | | | | | | | | | | | | | | | | | | | | | In a future commit we will introduce more members to struct publication. In order to keep this structure comprehensible we now group some of its current fields into the sub-structures where they really belong, - A struct tipc_service_range for the functional address the publication is representing. - A struct tipc_socket_addr for the socket bound to that service range. We also rename the stack variable 'publ' to just 'p' in a few places. This is just as easy to understand in the given context, and keeps the number of wrapped code lines to a minimum. There are no functional changes in this commit. Signed-off-by: Jon Maloy <jmaloy@redhat.com> Acked-by: Ying Xue <ying.xue@windriver.com> Acked-by: Hoang Le <hoang.h.le@dektech.com.au> Acked-by: Tung Nguyen <tung.q.nguyen@dektech.com.au> Acked-by: Xin Long <lucien.xin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ethtool: Add common function for filling out stringsAlexander Duyck2021-03-171-0/+12
| | | | | | | | | | | Add a function to handle the common pattern of printing a string into the ethtool strings interface and incrementing the string pointer by the ETH_GSTRING_LEN. Most of the drivers end up doing this and several have implemented their own versions of this function so it would make sense to consolidate on one implementation. Signed-off-by: Alexander Duyck <alexanderduyck@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* openvswitch: Warn over-mtu packets only if iface is UP.Flavio Leitner2021-03-171-3/+5
| | | | | | | | | | | | It is not unusual to have the bridge port down. Sometimes it has the old MTU, which is fine since it's not being used. However, the kernel spams the log with a warning message when a packet is going to be sent over such port. Fix that by warning only if the interface is UP. Signed-off-by: Flavio Leitner <fbl@sysclose.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ocelot: Remove ocelot_xfh_get_cpuqHoratiu Vultur2021-03-161-2/+0
| | | | | | | | Now when extracting frames from CPU the cpuq is not used anymore so remove it. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ocelot: Extend MRPHoratiu Vultur2021-03-161-6/+0
| | | | | | | | | This patch extends MRP support for Ocelot. It allows to have multiple rings and when the node has the MRC role it forwards MRP Test frames in HW. For MRM there is no change. Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: ipv4: route.c: simplify procfs codeYejune Deng2021-03-161-30/+4
| | | | | | | | | proc_creat_seq() that directly take a struct seq_operations, and deal with network namespaces in ->open. Signed-off-by: Yejune Deng <yejune.deng@gmail.com> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bridge: mcast: factor out common allow/block EHT handlingNikolay Aleksandrov2021-03-161-71/+27
| | | | | | | | | | | | | | | | We hande EHT state change for ALLOW messages in INCLUDE mode and for BLOCK messages in EXCLUDE mode similarly - create the new set entries with the proper filter mode. We also handle EHT state change for ALLOW messages in EXCLUDE mode and for BLOCK messages in INCLUDE mode in a similar way - delete the common entries (current set and new set). Factor out all the common code as follows: - ALLOW/INCLUDE, BLOCK/EXCLUDE: call __eht_create_set_entries() - ALLOW/EXCLUDE, BLOCK/INCLUDE: call __eht_del_common_set_entries() The set entries creation can be reused in __eht_inc_exc() as well. Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: bridge: mcast: remove unreachable EHT codeNikolay Aleksandrov2021-03-161-42/+15
| | | | | | | | | | | | | In the initial EHT versions there were common functions which handled allow/block messages for both INCLUDE and EXCLUDE modes, but later they were separated. It seems I've left some common code which cannot be reached because the filter mode is checked before calling the respective functions, i.e. the host filter is always in EXCLUDE mode when using __eht_allow_excl() and __eht_block_excl() thus we can drop the host_excl checks inside and simplify the code a bit. Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: dsa: mt7530: support MDB and bridge flag operationsDENG Qingfang2021-03-161-13/+1
| | | | | | | | | | | Support port MDB and bridge flag operations. As the hardware can manage multicast forwarding itself, offload_fwd_mark can be unconditionally set to true. Signed-off-by: DENG Qingfang <dqfext@gmail.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net: export dev_set_threaded symbolLorenzo Bianconi2021-03-151-0/+1
| | | | | | | | | | | For wireless devices (e.g. mt76 driver) multiple net_devices belongs to the same wireless phy and the napi object is registered in a dummy netdevice related to the wireless phy. Export dev_set_threaded in order to be reused in device drivers enabling threaded NAPI. Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* psample: Add additional metadata attributesIdo Schimmel2021-03-141-1/+38
| | | | | | | | | | | | | | | Extend psample to report the following attributes when available: * Output traffic class as a 16-bit value * Output traffic class occupancy in bytes as a 64-bit value * End-to-end latency of the packet in nanoseconds resolution * Software timestamp in nanoseconds resolution (always available) * Packet's protocol. Needed for packet dissection in user space (always available) Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* psample: Encapsulate packet metadata in a structIdo Schimmel2021-03-142-12/+10
| | | | | | | | | | | | | | Currently, callers of psample_sample_packet() pass three metadata attributes: Ingress port, egress port and truncated size. Subsequent patches are going to add more attributes (e.g., egress queue occupancy), which also need an indication whether they are valid or not. Encapsulate packet metadata in a struct in order to keep the number of arguments reasonable. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ethernet: constify eth_get_headlen()'s data argumentAlexander Lobakin2021-03-141-1/+1
| | | | | | | | It's used only for flow dissection, which now takes constant data pointers. Signed-off-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: David S. Miller <davem@davemloft.net>
* flow_dissector: constify raw input data argumentAlexander Lobakin2021-03-141-19/+22
| | | | | | | | | Flow Dissector code never modifies the input buffer, neither skb nor raw data. Make 'data' argument const for all of the Flow dissector's functions. Signed-off-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: David S. Miller <davem@davemloft.net>
* gro: give 'hash' variable in dev_gro_receive() a less confusing nameAlexander Lobakin2021-03-141-6/+6
| | | | | | | | | | 'hash' stores not the flow hash, but the index of the GRO bucket corresponding to it. Change its name to 'bucket' to avoid confusion while reading lines like '__set_bit(hash, &napi->gro_bitmask)'. Signed-off-by: Alexander Lobakin <alobakin@pm.me> Signed-off-by: David S. Miller <davem@davemloft.net>
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