- 19 Jan, 2019 1 commit
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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:
David S. Miller <davem@davemloft.net>
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- 18 Jan, 2019 39 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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Eran Ben Elisha authored
Devlink health reporter is an instance for reporting, diagnosing and recovering from run time errors discovered by the reporters. Define it's data structure and supported operations. In addition, expose devlink API to create and destroy a reporter. Each devlink instance will hold it's own reporters list. As part of the allocation, driver shall provide a set of callbacks which will be used the devlink in order to handle health reports and user commands related to this reporter. In addition, driver is entitled to provide some priv pointer, which can be fetched from the reporter by devlink_health_reporter_priv function. For each reporter, devlink will hold a metadata of statistics, buffers and status. Signed-off-by:
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Eran Ben Elisha authored
Devlink health buffer is a mechanism to pass descriptors between drivers and devlink. The API allows the driver to add objects, object pair, value array (nested attributes), value and name. Driver can use this API to fill the buffers in a format which can be translated by the devlink to the netlink message. In order to fulfill it, an internal buffer descriptor is defined. This will hold the data and metadata per each attribute and by used to pass actual commands to the netlink. This mechanism will be later used in devlink health for dump and diagnose data store by the drivers. Signed-off-by:
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Cong Wang authored
Although matchall always matches packets, however, it still relies on a protocol match first. So it is still useful to have such a counter for matchall. Of course, unlike u32, every time we hit a matchall filter, it is always a success, so we don't have to distinguish them. Sample output: filter protocol 802.1Q pref 100 matchall chain 0 filter protocol 802.1Q pref 100 matchall chain 0 handle 0x1 not_in_hw (rule hit 10) action order 1: vlan pop continue index 1 ref 1 bind 1 installed 40 sec used 1 sec Action statistics: Sent 836 bytes 10 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 Reported-by:
Martin Olsson <martin.olsson+netdev@sentorsecurity.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Cc: Jiri Pirko <jiri@resnulli.us> Signed-off-by:
Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by:
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David S. Miller authored
Heiner Kallweit says: ==================== net: phy: improve stopping PHY This patchset improves and simplifies stopping the PHY. Heiner Kallweit (3): net: phy: stop PHY if needed when entering phy_disconnect net: phy: ensure phylib state machine is stopped after calling phy_stop net: phy: remove phy_stop_interrupts v2: - break down the patch to a patchset v3: - don't warn if driver didn't call phy_stop before phy_disconnect ==================== Signed-off-by: -
Heiner Kallweit authored
Interrupts have been disabled in phy_stop() already. So we can remove phy_stop_interrupts() and free the interrupt in phy_disconnect() directly. Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Heiner Kallweit authored
The call to the phylib state machine in phy_stop() just ensures that the state machine isn't re-triggered, but a state machine call may be scheduled already. So lets's call phy_stop_machine(). This also allows to get rid of the call to phy_stop_machine() in phy_disconnect(). Signed-off-by:
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Heiner Kallweit authored
Stop PHY if needed when entering phy_disconnect. This allows drivers that don't need a separate call to phy_stop() to omit this call. Signed-off-by:
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Yafang Shao authored
Since tcp_mmap() is defined when CONFIG_MMU is set. Signed-off-by:
Yafang Shao <laoar.shao@gmail.com> Signed-off-by:
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Colin Ian King authored
There are two lines that have indentation issues, fix these. Also remove an empty line. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Colin Ian King authored
There is a goto statement that indented too deeply, fix it. Signed-off-by:
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Heiner Kallweit authored
Only caller of get_phy_id() is get_phy_device(). There a PHY ID of 0xffffffff is translated back to -ENODEV. So we can avoid some overhead by returning -ENODEV directly. Signed-off-by:
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Heiner Kallweit authored
Since recent changes to the phylib state machine state PHY_CHANGELINK isn't used any longer. Therefore let's remove it. Signed-off-by:
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Lorenzo Bianconi authored
Remove gre_hdr_len from ip6erspan_rcv routine signature since it is not longer used Signed-off-by:
Lorenzo Bianconi <lorenzo.bianconi@redhat.com> Signed-off-by:
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David S. Miller authored
Eric Dumazet says: ==================== tcp: remove code from tcp_create_openreq_child() tcp_create_openreq_child() is essentially cloning a listener, then must initialize some fields that can not be inherited. Listeners are either fresh sockets, or sockets that came through tcp_disconnect() after a session that dirtied many fields. By moving code to tcp_disconnect(), we can shorten time taken to create a clone, since tcp_disconnect() operation is very unlikely. ==================== Acked-by:
Yuchung Cheng <ycheng@google.com> Acked-by:
Soheil Hassas Yeganeh <soheil@google.com> Signed-off-by:
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Eric Dumazet authored
If we make sure all listeners have these fields cleared, then a clone will also inherit zero values. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Eric Dumazet authored
If we make sure all listeners have proper tp->rack value, then a clone will also inherit proper initial value. Note that fresh sockets init tp->rack from tcp_init_sock() Signed-off-by:
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