- 19 Jan, 2019 17 commits
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David S. Miller authored
Jakub Kicinski says: ==================== net: use strict checks in doit handlers This series extends strict argument checking to doit handlers of the GET* nature. This is a bit tricky since strict checking flag has already been released.. iproute2 did not have a release with strick checks enabled, and it will only need a minor one-liner to pass strick checks after all the work that DaveA has already done. Big thanks to Dave Ahern for help and guidence. v2: - remove unnecessary check in patch 5 (Nicolas); - add path 7 (DaveA); - improve messages in patch 8 (DaveA). ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Jakub Kicinski authored
Make RTM_GETNETCONF's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. Signed-off-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETROUTE's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETROUTE's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETADDRLABEL's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETNETCONF's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETADDR's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETROUTE's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. v2: - improve extack messages (DaveA). Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETROUTE's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. v2: - new patch (DaveA). Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETNETCONF's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETNSID's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. v2: - don't check size >= sizeof(struct rtgenmsg) (Nicolas). Signed-off-by:
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Jakub Kicinski authored
Make RTM_GETLINK's doit handler use strict checks when NETLINK_F_STRICT_CHK is set. Signed-off-by:
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Jakub Kicinski authored
In the spirit of strict checks reject requests of stats the kernel does not support when NETLINK_F_STRICT_CHK is set. Signed-off-by:
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Jakub Kicinski authored
Make sure NETLINK_GET_STRICT_CHK influences both GETSTATS doit as well as the dump. Signed-off-by:
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Jakub Kicinski authored
Dumps can read state of the NETLINK_F_STRICT_CHK flag from a field in the callback structure. For non-dump GET requests we need a way to access the state of that flag from a socket. Signed-off-by:
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Willem de Bruijn authored
On multiqueue network devices, RPS maps are configured independently for each receive queue through /sys/class/net/$DEV/queues/rx-*. On virtio-net currently all packets use the map from rx-0, because the real rx queue is not known at time of map lookup by get_rps_cpu. Call skb_record_rx_queue in the driver rx path to make lookup work. Recording the receive queue has ramifications beyond RPS, such as in sticky load balancing decisions for sockets (skb_tx_hash) and XPS. Reported-by:
Mark Hlady <mhlady@google.com> Signed-off-by:
Willem de Bruijn <willemb@google.com> Acked-by:
Jason Wang <jasowang@redhat.com> Acked-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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Toke Høiland-Jørgensen authored
There are now several places where qdisc_tree_reduce_backlog() is called with a negative number of packets (to signal an increase in number of packets in the queue). Rather than rely on overflow behaviour, change the function signature to use signed integers to communicate this usage to people reading the code. Signed-off-by:
Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by:
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- 18 Jan, 2019 23 commits
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David S. Miller authored
Huazhong Tan says: ==================== net: hns3: code optimizations & bugfixes for HNS3 driver This patchset includes bugfixes and code optimizations for the HNS3 ethernet controller driver ==================== Signed-off-by: -
Yunsheng Lin authored
The HNAE3_INIT_CLIENT interface is also used when changing tc configuration, vlan/mac hardware table does not need to be restored when tc configuration changes. This patch adds a HNAE3_RESTORE_CLIENT interface to restore the vlan/mac hardware table when resetting. Signed-off-by:
Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by:
Peng Li <lipeng321@huawei.com> Signed-off-by:
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Huazhong Tan authored
When the ETS information is changed, the network device needs to be re-initialized, otherwise the information such as the receiving queue will be incorrect. Signed-off-by:
Huazhong Tan <tanhuazhong@huawei.com> Signed-off-by:
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Huazhong Tan authored
The current code returns the number of all queues that can be used and the number of queues that have been allocated, which is incorrect. What should be returned is the number of queues allocated for each enabled TC and the number of queues that can be allocated. This patch fixes it. Fixes: 482d2e9c ("net: hns3: add support to query tqps number") Signed-off-by:
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Huazhong Tan authored
The alloc_tqps field of struct hclge_vport represents the total number of tqps allocated to the vport. The num_tqps of struct hnae3_knic_private_info indicates the total number of all enabled tqps, which needs to be distinguished during use. Signed-off-by:
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Huazhong Tan authored
Ethtool -L option with the combined parameter is for changing the number of multi-purpose channels of the specified network device. Under the current scheme, the user configuration information will be lost after the reset or TC information changed. This patch fixes this issue. By default, this configuration is set to the minimum between the number of queues for each enabled TCs and the maximum number support available in the hardware. When there is a user configuration, regardless of the reset or TC information change, it should keep the user's configuration while it is under the hardware limits, otherwise set to the maximum number support available in the hardware. Fixes: 09f2af64 ("net: hns3: add support to modify tqps number") Signed-off-by:
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Huazhong Tan authored
The TC info will be updated in hclge_tm_vport_tc_info_update(), so hclge_knic_setup() no need to do it again. Signed-off-by:
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Huazhong Tan authored
The number of queues for each enabled TC should range from 1 to the maximum available value, and return directly if the value is same as the current one. Signed-off-by:
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Huazhong Tan authored
Provide a common interface to complete the back pressure settings of all enabled TCs. So other functions directly call this interface to complete the corresponding operation. Signed-off-by:
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Huazhong Tan authored
There is already common interface for network device reinitialization, so hns3_set_channels() should just call them. Signed-off-by:
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Huazhong Tan authored
The parameter passed to hns3_set_channels() are already the number of queues per channel of the enabled TC, so it is not need to divide the number of enabled TCs. Signed-off-by:
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Huazhong Tan authored
The irq_init_flag field in struct hns3_enet_ring is unnecessary. This patch removes it. Signed-off-by:
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Huazhong Tan authored
hns3_reset_notify_init_enet and hns3_reset_notify_uninit_enet are the reinitialization interface that will be called when the device reset, the number of TC changed, or the queue length changed. So these two function should call hns3_get_ring_config() and hns3_put_ring_config() to allocate and free memory for the ring with the correct number. Also this patch fixes a double free problem when hns3_reset_notify_uninit_enet calling hns3_nic_dealloc_vector_data Signed-off-by:
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David S. Miller authored
Eran Ben Elisha says: ==================== Devlink health reporting and recovery system The health mechanism is targeted for Real Time Alerting, in order to know when something bad had happened to a PCI device - Provide alert debug information - Self healing - If problem needs vendor support, provide a way to gather all needed debugging information. The main idea is to unify and centralize driver health reports in the generic devlink instance and allow the user to set different attributes of the health reporting and recovery procedures. The devlink health reporter: Device driver creates a "health reporter" per each error/health type. Error/Health type can be a known/generic (eg pci error, fw error, rx/tx error) or unknown (driver specific). For each registered health reporter a driver can issue error/health reports asynchronously. All health reports handling is done by devlink. Device driver can provide specific callbacks for each "health reporter", e.g. - Recovery procedures - Diagnostics and object dump procedures - OOB initial attributes Different parts of the driver can register different types of health reporters with different handlers. Once an error is reported, devlink health will do the following actions: * A log is being send to the kernel trace events buffer * Health status and statistics are being updated for the reporter instance * Object dump is being taken and saved at the reporter instance (as long as there is no other dump which is already stored) * Auto recovery attempt is being done. Depends on: - Auto-recovery configuration - Grace period vs. time passed since last recover The user interface: User can access/change each reporter attributes and driver specific callbacks via devlink, e.g per error type (per health reporter) - Configure reporter's generic attributes (like: Disable/enable auto recovery) - Invoke recovery procedure - Run diagnostics - Object dump The devlink health interface (via netlink): DEVLINK_CMD_HEALTH_REPORTER_GET Retrieves status and configuration info per DEV and reporter. DEVLINK_CMD_HEALTH_REPORTER_SET Allows reporter-related configuration setting. DEVLINK_CMD_HEALTH_REPORTER_RECOVER Triggers a reporter's recovery procedure. DEVLINK_CMD_HEALTH_REPORTER_DIAGNOSE Retrieves diagnostics data from a reporter on a device. DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET Retrieves the last stored dump. Devlink health saves a single dump. If an dump is not already stored by the devlink for this reporter, devlink generates a new dump. dump output is defined by the reporter. DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR Clears the last saved dump file for the specified reporter. netlink +--------------------------+ | | | + | | | | +--------------------------+ |request for ops |(diagnose, mlx5_core devlink |recover, |dump) +--------+ +--------------------------+ | | | reporter| | | | | +---------v----------+ | | | ops execution | | | | | <----------------------------------+ | | | | | | | | | | | + ^------------------+ | | | | | request for ops | | | | | (recover, dump) | | | | | | | | | +-+------------------+ | | | health report | | health handler | | | +-------------------------------> | | | | | +--------------------+ | | | health reporter create | | | +----------------------------> | +--------+ +--------------------------+ In this patchset, mlx5e TX reporter is implemented. v2: - Remove FW* reporters to decrease the amount of patches in the patchset ==================== Signed-off-by: -
Aya Levin authored
This patch adds a new file to add information about devlink health mechanism. Signed-off-by:
Aya Levin <ayal@mellanox.com> Signed-off-by:
Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by:
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Eran Ben Elisha authored
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: 0xd8a, CQ: 0x406, SQ Cons: 0x2 SQ Prod: 0x2, usecs since last trans: 13972000 $devlink health diagnose pci/0000:00:09 reporter TX SQ 0xd8a: HW state: 1, stopped: 1 SQ 0xe44: HW state: 1, stopped: 0 SQ 0xeb4: HW state: 1, stopped: 0 SQ 0xf1f: HW state: 1, stopped: 0 SQ 0xf80: HW state: 1, stopped: 0 SQ 0xfe5: HW state: 1, stopped: 0 $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 dump_available false attributes: grace_period 500 auto_recover false Signed-off-by:Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
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Eran Ben Elisha authored
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 allocate 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. Signed-off-by:
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Eran Ben Elisha authored
Add devlink health dump commands, in order to run an dump operation over a specific reporter. The supported operations are dump_get in order to get last saved dump (if not exist, dump now) and dump_clear to clear last saved dump. It is expected from driver's callback for diagnose command to fill it via the buffer descriptors API. Devlink will parse it and convert it to netlink nla API in order to pass it to the user. Signed-off-by:
Moshe Shemesh <moshe@mellanox.com> Signed-off-by:
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Eran Ben Elisha authored
Add devlink health diagnose command, in order to run a diagnose operation over a specific reporter. It is expected from driver's callback for diagnose command to fill it via the buffer descriptors API. Devlink will parse it and convert it to netlink nla API in order to pass it to the user. Signed-off-by:
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Eran Ben Elisha authored
Add devlink health recover command to the uapi, in order to allow the user to execute a recover operation over a specific reporter. Signed-off-by:
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Eran Ben Elisha authored
Add devlink health set command, in order to set configuration parameters for a specific reporter. Supported parameters are: - graceful_period: Time interval between auto recoveries (in msec) - auto_recover: Determines if the devlink shall execute recover upon receiving error for the reporter Signed-off-by:
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Eran Ben Elisha authored
Add devlink health get command to provide reporter/s data for user space. Add the ability to get data per reporter or dump data from all available reporters. Signed-off-by:
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Eran Ben Elisha authored
Upon error discover, every driver can report it to the devlink health mechanism via devlink_health_report function, using the appropriate reporter registered to it. Driver can pass error specific context which will be delivered to it as part of the dump / recovery callbacks. Once an error is reported, devlink health will do the following actions: * A log is being send to the kernel trace events buffer * Health status and statistics are being updated for the reporter instance * Object dump is being taken and stored at the reporter instance (as long as there is no other dump which is already stored) * Auto recovery attempt is being done. depends on: - Auto Recovery configuration - Grace period vs. time since last recover Signed-off-by:
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