- 22 Mar, 2018 40 commits
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Tal Gilboa authored
Net DIM is a generic algorithm, purposed for dynamically optimizing network devices interrupt moderation. This document describes how it works and how to use it. Signed-off-by:
Tal Gilboa <talgi@mellanox.com> Reviewed-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Colin Ian King authored
Array mvpp2_pools is being indexed by long_log_pool, however this looks like a cut-n-paste bug and in fact should be short_log_pool. Detected by CoverityScan, CID#1466113 ("Copy-paste error") Fixes: 576193f2 ("net: mvpp2: jumbo frames support") Signed-off-by:Colin Ian King <colin.king@canonical.com> Acked-by:
Antoine Tenart <antoine.tenart@bootlin.com> Signed-off-by:
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David S. Miller authored
GhantaKrishnamurthy MohanKrishna says: ==================== tipc: socket diagnostics additions for AF_TIPC The following patchsets add socket diagnostics support for AF_TIPC by using the sock diag framework. The patchset was created on top of commit id: fb66cb07. New iproute2 package is needed to use this functionality which will be sent for review in a seperate mail. The commit series improves diagnosis of tipc sockets by exporting the configuration, states and statistics of sockets. The series has been co-authored by Parthasarathy Bhuvaragan and consist of two parts: 1-2: Adaptations of existing code to support sock_diag framework. We modify existing functions to support socket diagnostics. Required information about the sockets are exported. 3: Step sk_drops during packet drop. This occurs if the packet cannot be queued due to queue length exceeding configured thresholds. The diag module is optional, and if enabled it will be loaded on demand when needed. ==================== Signed-off-by:
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GhantaKrishnamurthy MohanKrishna authored
Currently when tipc is unable to queue a received message on a socket, the message is rejected back to the sender with error TIPC_ERR_OVERLOAD. However, the application on this socket has no knowledge about these discards. In this commit, we try to step the sk_drops counter when tipc is unable to queue a received message. Export sk_drops using tipc socket diagnostics. Acked-by:
Jon Maloy <jon.maloy@ericsson.com> Acked-by:
Ying Xue <ying.xue@windriver.com> Signed-off-by:
GhantaKrishnamurthy MohanKrishna <mohan.krishna.ghanta.krishnamurthy@ericsson.com> Signed-off-by:
Parthasarathy Bhuvaragan <parthasarathy.bhuvaragan@gmail.com> Signed-off-by:
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GhantaKrishnamurthy MohanKrishna authored
This commit adds socket diagnostics capability for AF_TIPC in netlink family NETLINK_SOCK_DIAG in a new kernel module (diag.ko). The following are key design considerations: - config TIPC_DIAG has default y, like INET_DIAG. - only requests with flag NLM_F_DUMP is supported (dump all). - tipc_sock_diag_req message is introduced to send filter parameters. - the response attributes are of TLV, some nested. To avoid exposing data structures between diag and tipc modules and avoid code duplication, the following additions are required: - export tipc_nl_sk_walk function to reuse socket iterator. - export tipc_sk_fill_sock_diag to fill the tipc diag attributes. - create a sock_diag response message in __tipc_add_sock_diag defined in diag.c and use the above exported tipc_sk_fill_sock_diag to fill response. Acked-by:
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GhantaKrishnamurthy MohanKrishna authored
The current socket iterator function tipc_nl_sk_dump, handles socket locks and calls __tipc_nl_add_sk for each socket. To reuse this logic in sock_diag implementation, we do minor modifications to make these functions generic as described below. In this commit, we add a two new functions __tipc_nl_sk_walk, __tipc_nl_add_sk_info and modify tipc_nl_sk_dump, __tipc_nl_add_sk accordingly. In __tipc_nl_sk_walk we: 1. acquire and release socket locks 2. for each socket, execute the specified callback function In __tipc_nl_add_sk we: - Move the netlink attribute insertion to __tipc_nl_add_sk_info. tipc_nl_sk_dump calls tipc_nl_sk_walk with __tipc_nl_add_sk as argument. sock_diag will use these generic functions in a later commit. There is no functional change in this commit. Acked-by:
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David S. Miller authored
Ido Schimmel says: ==================== mlxsw: Update supported firmware version The first patch bumps the firmware version supported by the driver. The second patch enables a feature introduced in the new version, auto-negotiation disable. ==================== Signed-off-by: -
Tal Bar authored
In 'auto-neg off' the device have sent AN (auto-negotiation) frames with the forced speed. Thus, fix it using an_disable_admin field in Port type and speed (PTYS) register. This field indicates if speed negotiation frames would be send by the port or not. Add the field and enable/disable it for 'auto-neg on/off', make the port to start/stop sending AN (auto-negotiation) frames. Note that for SwitchX2 the behavior doesn't change (i.e support only AN enabled with forced speed). Signed-off-by:
Tal Bar <talb@mellanox.com> Reviewed-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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Tal Bar authored
This new firmware contains: - Support for auto-neg disable mode Signed-off-by:
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David S. Miller authored
Peng Li says: ==================== fix some bugs for HNS3 driver This patchset fixes some bugs for HNS3 driver: [Patch 1/11 - 5/11] fix various bugs reported by hisilicon test team. [Patch 6/11 - 7/11] fix bugs about interrupt coalescing self-adaptive function. [Patch 8/11 - 11/11] fix bugs about ethtool_ops.get_link_ksettings. ==================== Signed-off-by: -
Fuyun Liang authored
When phy exists, phy_ethtool_ksettings_get function is enough to get the link ksettings. If the phy exists, get_link_ksettings function can return directly after phy_ethtool_ksettings_get is called. Signed-off-by:
Fuyun Liang <liangfuyun1@huawei.com> Signed-off-by:
Peng Li <lipeng321@huawei.com> Signed-off-by:
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Fuyun Liang authored
This patch adds support for querying speed and duplex by ethtool ethX to VF. Signed-off-by:
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Fuyun Liang authored
This patch adds ethtool_ops.get_link support to VF. Signed-off-by:
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Fuyun Liang authored
Fixed link mode is returned by hns3_get_link_ksettings. It is unreasonable. This patch fixes it by adding some related functions to get link mode from hardware. Signed-off-by:
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Fuyun Liang authored
Since we change the update rate of int_gl from every interrupt to every one hundred interrupts, the old way to get time interval by int_gl value is not accurate. This patch calculates the time interval using the jiffies value. Signed-off-by:
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Fuyun Liang authored
The interrupt coalescing self-adaptive function updates the int_gl every interrupt. The GL update rate is too faster to get a better new GL value. This patch changes the GL update rate to every one hundred interrupts. The GL update rate is defined by HNS3_INT_ADAPT_DOWN_START. Signed-off-by:
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Peng Li authored
It may need more time for IMP handle some command, such as reset. This patch enlarges the max time for cmd timeout. Driver will check the IMP result every us, it may break through the loop when get the right result. So not all command need the max time. Signed-off-by:
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Yunsheng Lin authored
There is no module that is dependent on hclge or hclgevf's symbol, but hns_enet need them to provide ops for it to run. When there is a need to auto load the hns3 driver, the auto load will fail because hclge or hclgevf is not loaded. Hns_enet has already exported the pci table, so this patch exports the pci table for hclge and hclgevf module too. Signed-off-by:
Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by:
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Yunsheng Lin authored
The vlan table in hardware is clear after PF/Core/IMP/Global reset, which will cause vlan tagged packets not being received problem. This patch fixes it by restoring the vlan table after reset. Signed-off-by:
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Peng Li authored
VF queue reset flow is different from PF queue reset flow. VF driver should stop VF queue first, then send message to PF and PF do the reset. PF should send a response to VF after PF complete the queue reset, VF can initialize the queue hw after get the response. This patch fixes the VF queue reset flow as the correct step. Signed-off-by:
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Fuyun Liang authored
When changing the mtu, the max frame size also will be changed. The tx buffer size and the rx buffer size to be allocated are determined by max frame size. So when max frame size is changed, the tx buffer and rx buffer need to be reallocated. When the tc_num is changed, the tx buffer and rx buffer need to be reallocated too. So calling set_mtu and buffer_alloc separately is better. Signed-off-by:
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David Ahern authored
top_hierarchy arg can be determined by comparing parent_resource_id to DEVLINK_RESOURCE_ID_PARENT_TOP so it does not need to be a separate argument. Signed-off-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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David Ahern authored
Add multipath tests for onlink flag: one test with onlink added to both nexthops, then tests with onlink added to only 1 nexthop. Signed-off-by:
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David S. Miller authored
Raju Rangoju says: ==================== Add support for RDMA enhancements in cxgb4 Allocates the HW-resources and provide the necessary routines for the upper layer driver (rdma/iw_cxgb4) to enable the RDMA SRQ support for Chelsio adapters. Advertise support for write with immediate work request Advertise support for write with completion v3: modified memory allocation as per Stefano's suggestion v2: fixed the patching issues and also fixed the following based on review comments of Stefano Brivio - using kvzalloc instead of vzalloc - using #define instead of enum ==================== Signed-off-by: -
Raju Rangoju authored
If FW supports RDMA WRITE_COMPLETION functionality, then advertise that to the ULDs. This will be used by iw_cxgb4 to allow WRITE_COMPLETION work requests. Signed-off-by:
Potnuri Bharat Teja <bharat@chelsio.com> Signed-off-by:
Raju Rangoju <rajur@chelsio.com> Signed-off-by:
Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by:
Steve Wise <swise@opengridcomputing.com> Signed-off-by:
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Raju Rangoju authored
If FW supports RDMA WRITE_WITH_IMMEDATE functionality, then advertise that to the ULDs. This will be used by iw_cxgb4 to allow WRITE_WITH_IMMEDIATE work requests. Signed-off-by:
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Raju Rangoju authored
This patch adds support to query FW for the HW SRQ table start/end, and advertise that for ULDs. Signed-off-by:
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Raju Rangoju authored
- This patch adds support to initialise srq table and read srq entries Signed-off-by:
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Raju Rangoju authored
- Add srq table query cpl support for srq - Add cpl_abort_req_rss6 and cpl_abort_rpl_rss6 structs. - Add accessors, macros to get the SRQ IDX value. Signed-off-by:
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David S. Miller authored
Heiner Kallweit says: ==================== r8169: series with smaller improvements w/o functional changes This series includes smaller improvements w/o intended functional changes. ==================== Signed-off-by: -
Heiner Kallweit authored
In several places struct device is referenced by using &tp->pci_dev->dev. Add helper tp_to_dev() to improve code readability. Signed-off-by:
Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by:
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Heiner Kallweit authored
Changing the argument type to struct rtl8169_private * is more in line with the other functions in the driver and it allows to reduce the code size. Signed-off-by:
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Heiner Kallweit authored
Changing the type of the first argument to struct rtl8169_private * is more in line with the other functions in the driver and it allows to reduce the code size. Signed-off-by:
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Heiner Kallweit authored
Replace open-coded functionality with eth_mac_addr(). Signed-off-by:
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git://git.open-mesh.org/linux-mergeDavid S. Miller authored
Simon Wunderlich says: ==================== This feature/cleanup patchset includes the following patches: - avoid redundant multicast TT entries, by Linus Luessing - add netlink support for distributed arp table cache and multicast flags, by Linus Luessing (2 patches) ==================== Signed-off-by: -
Sowmini Varadhan authored
The netns deletion path does not need to wait for all net_devices to be unregistered before dismantling rds_tcp state for the netns (we are able to dismantle this state on module unload even when all net_devices are active so there is no dependency here). This patch removes code related to netdevice notifiers and refactors all the code needed to dismantle rds_tcp state into a ->exit callback for the pernet_operations used with register_pernet_device(). Signed-off-by:
Sowmini Varadhan <sowmini.varadhan@oracle.com> Reviewed-by:
Kirill Tkhai <ktkhai@virtuozzo.com> Signed-off-by:
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Christian Brauner authored
This patch adds a receive method to NETLINK_KOBJECT_UEVENT netlink sockets to allow sending uevent messages into the network namespace the socket belongs to. Currently non-initial network namespaces are already isolated and don't receive uevents. There are a number of cases where it is beneficial for a sufficiently privileged userspace process to send a uevent into a network namespace. One such use case would be debugging and fuzzing of a piece of software which listens and reacts to uevents. By running a copy of that software inside a network namespace, specific uevents could then be presented to it. More concretely, this would allow for easy testing of udevd/ueventd. This will also allow some piece of software to run components inside a separate network namespace and then effectively filter what that software can receive. Some examples of software that do directly listen to uevents and that we have in the past attempted to run inside a network namespace are rbd (CEPH client) or the X server. Implementation: The implementation has been kept as simple as possible from the kernel's perspective. Specifically, a simple input method uevent_net_rcv() is added to NETLINK_KOBJECT_UEVENT sockets which completely reuses existing af_netlink infrastructure and does neither add an additional netlink family nor requires any user-visible changes. For example, by using netlink_rcv_skb() we can make use of existing netlink infrastructure to report back informative error messages to userspace. Furthermore, this implementation does not introduce any overhead for existing uevent generating codepaths. The struct netns got a new uevent socket member that records the uevent socket associated with that network namespace including its position in the uevent socket list. Since we record the uevent socket for each network namespace in struct net we don't have to walk the whole uevent socket list. Instead we can directly retrieve the relevant uevent socket and send the message. At exit time we can now also trivially remove the uevent socket from the uevent socket list. This keeps the codepath very performant without introducing needless overhead and even makes older codepaths faster. Uevent sequence numbers are kept global. When a uevent message is sent to another network namespace the implementation will simply increment the global uevent sequence number and append it to the received uevent. This has the advantage that the kernel will never need to parse the received uevent message to replace any existing uevent sequence numbers. Instead it is up to the userspace process to remove any existing uevent sequence numbers in case the uevent message to be sent contains any. Security: In order for a caller to send uevent messages to a target network namespace the caller must have CAP_SYS_ADMIN in the owning user namespace of the target network namespace. Additionally, any received uevent message is verified to not exceed size UEVENT_BUFFER_SIZE. This includes the space needed to append the uevent sequence number. Testing: This patch has been tested and verified to work with the following udev implementations: 1. CentOS 6 with udevd version 147 2. Debian Sid with systemd-udevd version 237 3. Android 7.1.1 with ueventd Signed-off-by:
Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by:
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Christian Brauner authored
This commit adds struct uevent_sock to struct net. Since struct uevent_sock records the position of the uevent socket in the uevent socket list we can trivially remove it from the uevent socket list during cleanup. This speeds up the old removal codepath. Note, list_del() will hit __list_del_entry_valid() in its call chain which will validate that the element is a member of the list. If it isn't it will take care that the list is not modified. Signed-off-by:
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Kirill Tkhai authored
These pernet_operations register and unregister sysctl. Also, there is inet_frags_exit_net() called in exit method, which has to be safe after a5600024 "net: Fix hlist corruptions in inet_evict_bucket()". Signed-off-by:
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Kirill Tkhai authored
These pernet_operations register and unregister sysctl. Also, there is inet_frags_exit_net() called in exit method, which has to be safe after a5600024 "net: Fix hlist corruptions in inet_evict_bucket()". Signed-off-by:
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