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2022-01-02sun/cassini: Use dma_set_mask_and_coherent() and simplify codeChristophe JAILLET1-20/+6
Use dma_set_mask_and_coherent() instead of unrolling it with some dma_set_mask()+dma_set_coherent_mask(). Moreover, as stated in [1], dma_set_mask() with a 64-bit mask will never fail if dev->dma_mask is non-NULL. So, if it fails, the 32 bits case will also fail for the same reason. That said, 'pci_using_dac' can only be 1 after a successful dma_set_mask_and_coherent(). Simplify code and remove some dead code accordingly. [1]: https://lkml.org/lkml/2021/6/7/398 Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02net/smc: add comments for smc_link_{usable|sendable}Dust Li1-1/+16
Add comments for both smc_link_sendable() and smc_link_usable() to help better distinguish and use them. No function changes. Signed-off-by: Dust Li <dust.li@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02tehuti: Use dma_set_mask_and_coherent() and simplify codeChristophe JAILLET1-18/+10
Use dma_set_mask_and_coherent() instead of unrolling it with some dma_set_mask()+dma_set_coherent_mask(). Moreover, as stated in [1], dma_set_mask_and_coherent() with a 64-bit mask will never fail if dev->dma_mask is non-NULL. So, if it fails, the 32 bits case will also fail for the same reason. That said, 'pci_using_dac' can only be 1 after a successful dma_set_mask_and_coherent(). Simplify code and remove some dead code accordingly. [1]: https://lkml.org/lkml/2021/6/7/398 Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02enic: Use dma_set_mask_and_coherent()Christophe JAILLET1-14/+2
Use dma_set_mask_and_coherent() instead of unrolling it with some dma_set_mask()+dma_set_coherent_mask(). This simplifies code and removes some dead code (dma_set_coherent_mask() can not fail after a successful dma_set_mask()) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02net: socket.c: style fixHamish MacDonald1-1/+1
Removed spaces and added a tab that was causing an error on checkpatch Signed-off-by: Hamish MacDonald <elusivenode@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02ipv6: ioam: Support for Queue depth data fieldJustin Iurman1-1/+15
v3: - Report 'backlog' (bytes) instead of 'qlen' (number of packets) v2: - Fix sparse warning (use rcu_dereference) This patch adds support for the queue depth in IOAM trace data fields. The draft [1] says the following: The "queue depth" field is a 4-octet unsigned integer field. This field indicates the current length of the egress interface queue of the interface from where the packet is forwarded out. The queue depth is expressed as the current amount of memory buffers used by the queue (a packet could consume one or more memory buffers, depending on its size). An existing function (i.e., qdisc_qstats_qlen_backlog) is used to retrieve the current queue length without reinventing the wheel. Note: it was tested and qlen is increasing when an artificial delay is added on the egress with tc. [1] https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-data#section-5.4.2.7 Signed-off-by: Justin Iurman <justin.iurman@uliege.be> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02net/smc: remove redundant re-assignment of pointer linkColin Ian King1-1/+0
The pointer link is being re-assigned the same value that it was initialized with in the previous declaration statement. The re-assignment is redundant and can be removed. Fixes: 387707fdf486 ("net/smc: convert static link ID to dynamic references") Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02net/smc: Introduce TCP ULP supportTony Lu1-7/+86
This implements TCP ULP for SMC, helps applications to replace TCP with SMC protocol in place. And we use it to implement transparent replacement. This replaces original TCP sockets with SMC, reuse TCP as clcsock when calling setsockopt with TCP_ULP option, and without any overhead. To replace TCP sockets with SMC, there are two approaches: - use setsockopt() syscall with TCP_ULP option, if error, it would fallback to TCP. - use BPF prog with types BPF_CGROUP_INET_SOCK_CREATE or others to replace transparently. BPF hooks some points in create socket, bind and others, users can inject their BPF logics without modifying their applications, and choose which connections should be replaced with SMC by calling setsockopt() in BPF prog, based on rules, such as TCP tuples, PID, cgroup, etc... BPF doesn't support calling setsockopt with TCP_ULP now, I will send the patches after this accepted. Signed-off-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02net/smc: Add net namespace for tracepointsTony Lu1-7/+16
This prints net namespace ID, helps us to distinguish different net namespaces when using tracepoints. Signed-off-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02net/smc: Print net namespace in logTony Lu2-9/+14
This adds net namespace ID to the kernel log, net_cookie is unique in the whole system. It is useful in container environment. Signed-off-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02net/smc: Add netlink net namespace supportTony Lu4-12/+20
This adds net namespace ID to diag of linkgroup, helps us to distinguish different namespaces, and net_cookie is unique in the whole system. Signed-off-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-02net/smc: Introduce net namespace support for linkgroupTony Lu4-12/+42
Currently, rdma device supports exclusive net namespace isolation, however linkgroup doesn't know and support ibdev net namespace. Applications in the containers don't want to share the nics if we enabled rdma exclusive mode. Every net namespaces should have their own linkgroups. This patch introduce a new field net for linkgroup, which is standing for the ibdev net namespace in the linkgroup. The net in linkgroup is initialized with the net namespace of link's ibdev. It compares the net of linkgroup and sock or ibdev before choose it, if no matched, create new one in current net namespace. If rdma net namespace exclusive mode is not enabled, it behaves as before. Signed-off-by: Tony Lu <tonylu@linux.alibaba.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: delete the hclge_cmd.c and hclgevf_cmd.cJie Wang5-66/+42
currently most cmdq APIs are unified in hclge_comm_cmd.c. Newly developed cmdq APIs should also be placed in hclge_comm_cmd.c. So there is no need to keep hclge_cmd.c and hclgevf_cmd.c. This patch moves the hclge(vf)_cmd_send to hclge(vf)_main.c and deletes the source files and makefile scripts. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: refactor VF cmdq init and uninit APIs with new common APIsJie Wang5-204/+36
This patch uses common cmdq init and uninit APIs to replace the old APIs in VF cmdq module init and uninit module. Then the old VF init and uninit APIs is deleted. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: refactor PF cmdq init and uninit APIs with new common APIsJie Wang5-197/+27
This patch uses common cmdq init and uninit APIs to replace the old APIs in PF cmdq module init and uninit modules. Then the old PF init and uninit APIs is deleted. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: create common cmdq init and uninit APIsJie Wang2-0/+163
The PF and VF cmdq init and uninit APIs are also almost same espect the suffixes of API names. This patch creates common cmdq init and uninit APIs needed by PF and VF cmdq modules. The next patch will use the new unified APIs to replace init and uninit APIs in PF module. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: refactor VF cmdq resource APIs with new common APIsJie Wang2-231/+19
This patch uses common cmdq resource allocate/free/query APIs to replace the old APIs in VF cmdq module and deletes the old cmdq resource APIs. Still we kept hclgevf_cmd_setup_basic_desc name as a seam API to avoid too many meaningless replacement. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: refactor PF cmdq resource APIs with new common APIsJie Wang5-323/+63
This patch uses common cmdq resource allocate/free/query APIs to replace the old APIs in PF cmdq module and deletes the old cmdq resource APIs. Still we kept hclge_cmd_setup_basic_desc name as a seam API to avoid too many meaningless replacement. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: create common cmdq resource allocate/free/query APIsJie Wang2-1/+311
The PF and VF cmdq module resource allocate/free/query APIs are almost the same espect the suffixes of API names. These same implementations bring double development and bugfix work. This patch creates common cmdq resource allocate/free/query APIs called by PF and VF cmdq init/uninit APIs. The next patch will use the new unified APIs to replace init/uninit APIs. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: refactor hclgevf_cmd_send with new hclge_comm_cmd_send APIJie Wang5-360/+82
This patch firstly uses new hardware description struct hclge_comm_hw as child member of hclgevf_hw and deletes the old hardware description child members. All the hclgevf_hw variables used in VF module is modified according to the new hclgevf_hw. Secondly hclgevf_cmd_send is refactored to use hclge_comm_cmd_send APIs. The old functions called by hclgevf_cmd_send are all deleted. Still we kept hclgevf_cmd_send to avoid too many meaningless modifications. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: refactor hclge_cmd_send with new hclge_comm_cmd_send APIJie Wang8-373/+100
This patch firstly uses new hardware description struct hclge_comm_hw as child member of hclge_hw and deletes the original child memebers of hclge_hw. All the hclge_hw variables used in PF module is modified according to the new hclge_hw. Secondly hclge_cmd_send is refactored to use hclge_comm_cmd_send APIs. The old functions called by hclge_cmd_send are deleted and hclge_cmd_send is kept to avoid too many meaningless modifications. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: create new set of unified hclge_comm_cmd_send APIsJie Wang2-0/+325
This patch create new set of unified hclge_comm_cmd_send APIs for PF and VF cmdq module. Subfunctions called by hclge_comm_cmd_send are also created include cmdq result check, cmdq return code conversion and ring space opertaion APIs. These new common cmdq APIs will be used to replace the old PF and VF cmdq APIs in next patches. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: use struct hclge_desc to replace hclgevf_desc in VF cmdq moduleJie Wang4-35/+28
This patch use new common struct hclge_desc to replace struct hclgevf_desc in VF cmdq module and then delete the old struct hclgevf_desc. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: create new cmdq hardware description structure hclge_comm_hwJie Wang3-8/+57
Currently PF and VF cmdq APIs use struct hclge(vf)_hw to describe cmdq hardware information needed by hclge(vf)_cmd_send. There are a little differences between its child struct hclge_cmq_ring and hclgevf_cmq_ring. It is redundent to use two sets of structures to support same functions. So this patch creates new set of common cmdq hardware description structures(hclge_comm_hw) to unify PF and VF cmdq functions. The struct hclge_desc is still kept to avoid too many meaningless replacement. These new structures will be used to unify hclge(vf)_hw structures in PF and VF cmdq APIs in next patches. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net: hns3: refactor hns3 makefile to support hns3_common moduleJie Wang3-25/+11
Currently we plan to refactor PF and VF cmdq module. A new file folder hns3_common will be created to store new common APIs used by PF and VF cmdq module. Thus the PF and VF compilation process will both depends on the hns3_common. This may cause parallel building problems if we add a new makefile building unit. So this patch combined the PF and VF makefile scripts to the top level makefile to support the new hns3_common which will be created in the next patch. Signed-off-by: Jie Wang <wangjie125@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-31net/mlx5: Set SMFS as a default steering mode if device supports itYevgeny Kliteynik1-0/+5
Set SMFS (SW-managed flow steering) as a default steering mode instead of DMFS (device-managed flow steering) In SMFS, the driver writes the STEs (Steering Table Entries) directly to the device's ICM, which allows for a higher rule insertion rate than through using FW command interface, as it is done in DMFS. SMFS/DMFS steering modes can be configured through devlink param 'flow_steering_mode'. The possible values are 'smfs' or 'dmfs'. The desired 'flow_steering_mode' param value should be set before enabling switchdev mode. Example: # devlink dev param set pci/0000:05:00.0 name flow_steering_mode smfs # devlink dev eswitch set pci/0000:05:00.0 mode switchdev Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Ignore modify TTL if device doesn't support itYevgeny Kliteynik2-4/+19
When modifying TTL, packet's csum has to be recalculated. Due to HW issue in ConnectX-5, csum recalculation for modify TTL is supported through a work-around that is specifically enabled by configuration. If the work-around isn't enabled, ignore the modify TTL action rather than adding an unsupported action. Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Improve steering for empty or RX/TX-only matchersYevgeny Kliteynik4-130/+156
Every matcher has RX and TX paths. When a new matcher is created, its RX and TX start/end anchors are connected to the respective RX and TX anchors of the previous and next matchers. This creates a potential performance issue: when a certain rule is added to a matcher, in many cases it is RX or TX only rule, which may create a long chain of RX/TX-only paths w/o the actual rules. This patch aims to handle this issue. RX and TX matchers are now handled separately: matcher connection in the matchers chain is split into two separate lists: RX only and TX only. when a new matcher is created, it is initially created 'detached' - its RX/TX members are not inserted into the table's matcher list. When an actual rule is added, only its appropriate RX or TX nic matchers are then added to the table's nic matchers list and inserted into its place in the chain of matchers. I.e., if the rule that is being added is an RX-only rule, only the RX part of the matcher will be connected to the chain, while TX part of the matcher remains detached and doesn't prolong the TX chain of the matchers. Same goes for rule deletion: when the last RX/TX rule of the nic matcher is destroyed, the nic matcher is removed from its list. Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Add support for matching on geneve_tlv_option_0_exist fieldYevgeny Kliteynik8-3/+90
Match on geneve_tlv_option_0_exist field on devices that support STEv1. Signed-off-by: Muhammad Sammar <muhammads@nvidia.com> Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Support matching on tunnel headers 0 and 1Muhammad Sammar7-1/+79
Tunnel headers are generic encapsulation headers, applies for all tunneling protocols identified by the device native parser or by the programmable parser, this support will enable raw matching headers 0 and 1. Signed-off-by: Muhammad Sammar <muhammads@nvidia.com> Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Add misc5 to match_param structsMuhammad Sammar4-1/+61
Add misc5 match params to enable matching tunnel headers. Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
2021-12-31net/mlx5: Add misc5 flow table match parametersMuhammad Sammar4-3/+27
Add support for misc5 match parameter as per HW spec, this will allow matching on tunnel_header fields. Signed-off-by: Muhammad Sammar <muhammads@nvidia.com> Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Warn on failure to destroy objects due to refcountYevgeny Kliteynik4-4/+4
Add WARN_ON_ONCE on refcount checks in SW steering object destructors Signed-off-by: Paul Blakey <paulb@nvidia.com> Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Add support for UPLINK destination typeYevgeny Kliteynik4-10/+34
Add support for a new destination type - UPLINK. Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Add support for dumping steering infoMuhammad Sammar8-8/+688
Extend mlx5 debugfs support to present Software Steering resources: dr_domain including it's tables, matchers and rules. The interface is read-only. While dump is being presented, new steering rules cannot be inserted/deleted. The steering information is dumped in the CSV form with the following format: <object_type>,<object_ID>, <object_info>,...,<object_info> This data can be read at the following path: /sys/kernel/debug/mlx5/<BDF>/steering/fdb/<domain_handle> Example: # cat /sys/kernel/debug/mlx5/0000:82:00.0/steering/fdb/dmn_000018644 3100,0x55caa4621c50,0xee802,4,65533 3101,0x55caa4621c50,0xe0100008 Changes in V2: - Reduce temp hex buffer size and avoid unnecessary memset - Use bin2hex() instead of DIY loop - Don't check debugfs functions return values Signed-off-by: Muhammad Sammar <muhammads@nvidia.com> Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Add missing reserved fields to dr_match_paramMuhammad Sammar1-89/+124
Add the reserved fields to dr_match_param and arrange as mlx5_ifc_dr_match_param_bits. Signed-off-by: Muhammad Sammar <muhammads@nvidia.com>
2021-12-31net/mlx5: DR, Add check for flex parser ID valueYevgeny Kliteynik2-2/+2
Allow only legal values for flex parser ID - values from 0 to 7. For other values skip the parser, and as a result the matcher creation will fail for using invalid flex parser ID. Signed-off-by: Hamdan Igbaria <hamdani@nvidia.com> Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Rename list field in matcher struct to list_nodeYevgeny Kliteynik3-15/+15
In dr_types structs, some list fields are list heads, and some are just list nodes that are stored on the other structs' lists. Rename the appropriate list field to reflect this distinction. Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Remove unused struct member in matcherYevgeny Kliteynik1-1/+0
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Fix lower case macro prefix "mlx5_" to "MLX5_"Yevgeny Kliteynik3-3/+3
Macros prefix should be capital letters - fix the prefix in mlx5_FLEX_PARSER_MPLS_OVER_UDP_ENABLED. Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-31net/mlx5: DR, Fix error flow in creating matcherYevgeny Kliteynik1-21/+32
The error code of nic matcher init functions wasn't checked. This patch improves the matcher init function and fix error flow bug: the handling of match parameter is moved into a separate function and error flow is simplified. Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
2021-12-30bpf: Fix typo in a comment in bpf lpm_trie.Leon Huayra1-1/+1
Fix typo in a comment in trie_update_elem(). Signed-off-by: Leon Huayra <hffilwlqm@gmail.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211229144422.70339-1-hffilwlqm@gmail.com
2021-12-30net: dsa: bcm_sf2: refactor LED regs accessRafał Miłecki3-10/+119
1. Define more regs. Some switches (e.g. BCM4908) have up to 6 regs. 2. Add helper for handling non-lineral port <-> reg mappings. 3. Add support for 12 B LED reg blocks on BCM4908 (different layout) Complete support for LEDs setup will be implemented once Linux receives a proper design & implementation for "hardware" LEDs. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Link: https://lore.kernel.org/r/20211229171642.22942-1-zajec5@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-30net: remove references to CONFIG_IRDA in network header filesLukas Bulwahn2-2/+2
Commit d64c2a76123f ("staging: irda: remove the irda network stack and drivers") removes the config IRDA. Remove the remaining references to this non-existing config in the network header files. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Link: https://lore.kernel.org/r/20211229113620.19368-1-lukas.bulwahn@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-30nfc: st21nfca: remove redundant assignment to variable iColin Ian King1-3/+1
Variable i is being assigned a value that is never read, the assignment is redundant and can be removed. Cleans up clang-scan build warning: drivers/nfc/st21nfca/i2c.c:319:4: warning: Value stored to 'i' is never read [deadcode.DeadStores] i = 0; Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Link: https://lore.kernel.org/r/20211230161230.428457-1-colin.i.king@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-12-30bpf, docs: Move the packet access instructions last in instruction-set.rstChristoph Hellwig1-28/+27
The packet access instructions are a convoluted leftover from classic BPF. Move them last past the much more important atomic operations, and improve the rendering of the code example. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211223101906.977624-5-hch@lst.de
2021-12-30bpf, docs: Generate nicer tables for instruction encodingsChristoph Hellwig1-63/+95
Use RST tables that are nicely readable both in plain ascii as well as in html to render the instruction encodings, and add a few subheadings to better structure the text. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211223101906.977624-4-hch@lst.de
2021-12-30bpf, docs: Split the comparism to classic BPF from instruction-set.rstChristoph Hellwig3-311/+446
Split the introductory that explain eBPF vs classic BPF and how it maps to hardware from the instruction set specification into a standalone document. This duplicates a little bit of information but gives us a useful reference for the eBPF instrution set that is not encumbered by classic BPF. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211223101906.977624-3-hch@lst.de
2021-12-30bpf, docs: Fix verifier referencesChristoph Hellwig1-5/+2
Use normal RST file reference instead of linkage copied from the old filter.rst document that does not actually work when using HTML output. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20211223101906.977624-2-hch@lst.de
2021-12-30fsl/fman: Fix missing put_device() call in fman_port_probeMiaoqian Lin1-5/+7
The reference taken by 'of_find_device_by_node()' must be released when not needed anymore. Add the corresponding 'put_device()' in the and error handling paths. Fixes: 18a6c85fcc78 ("fsl/fman: Add FMan Port Support") Signed-off-by: Miaoqian Lin <linmq006@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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