summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/microsoft
AgeCommit message (Collapse)Author
10 daysnet: mana: Handle hardware recovery events when probing the deviceLong Li
When MANA is being probed, it's possible that hardware is in recovery mode and the device may get GDMA_EQE_HWC_RESET_REQUEST over HWC in the middle of the probe. Detect such condition and go through the recovery service procedure. Signed-off-by: Long Li <longli@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1764193552-9712-1-git-send-email-longli@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: mana: Drop TX skb on post_work_request failure and unmap resourcesAditya Garg
Drop TX packets when posting the work request fails and ensure DMA mappings are always cleaned up. Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1763464269-10431-3-git-send-email-gargaditya@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-19net: mana: Handle SKB if TX SGEs exceed hardware limitAditya Garg
The MANA hardware supports a maximum of 30 scatter-gather entries (SGEs) per TX WQE. Exceeding this limit can cause TX failures. Add ndo_features_check() callback to validate SKB layout before transmission. For GSO SKBs that would exceed the hardware SGE limit, clear NETIF_F_GSO_MASK to enforce software segmentation in the stack. Add a fallback in mana_start_xmit() to linearize non-GSO SKBs that still exceed the SGE limit. Also, Add ethtool counter for SKBs linearized Co-developed-by: Dipayaan Roy <dipayanroy@linux.microsoft.com> Signed-off-by: Dipayaan Roy <dipayanroy@linux.microsoft.com> Signed-off-by: Aditya Garg <gargaditya@linux.microsoft.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1763464269-10431-2-git-send-email-gargaditya@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-17net: mana: Add standard counter rx_missed_errorsErni Sri Satya Vennela
Report standard counter stats->rx_missed_errors using hc_rx_discards_no_wqe from the hardware. Add a global workqueue to periodically run mana_query_gf_stats every 2 seconds to get the latest info in eth_stats and define a driver capability flag to notify hardware of the periodic queries. To avoid repeated failures and log flooding, the workqueue is not rescheduled if mana_query_gf_stats fails on HWC timeout error and the stats are reset to 0. Other errors are transient which will not need a VF reset for recovery. Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1763120599-6331-3-git-send-email-ernis@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-17net: mana: Move hardware counter stats from per-port to per-VF contextErni Sri Satya Vennela
Move hardware counter (HC) statistics from mana_port_context to mana_context to enable sharing stats across multiple network ports on the same MANA VF. Previously, each network port queried hardware counters independently using MANA_QUERY_GF_STAT command (GF = Generic Function stats from GDMA hardware), resulting in redundant queries when multiple ports existed on the same device. Isolate hardware counter stats by introducing mana_ethtool_hc_stats in mana_context and update the code to ensure all stats are properly reported via ethtool -S <interface>, maintaining consistency with previous behavior. Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1763120599-6331-2-git-send-email-ernis@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-11-07net: mana: Fix incorrect speed reported by debugfsErni Sri Satya Vennela
Once the netshaper is created for MANA, the current bandwidth is reported in debugfs like this: $ sudo ./tools/net/ynl/pyynl/cli.py \ --spec Documentation/netlink/specs/net_shaper.yaml \ --do set \ --json '{"ifindex":'3', "handle":{ "scope": "netdev", "id":'1' }, "bw-max": 200000000 }' None $ sudo cat /sys/kernel/debug/mana/1/vport0/current_speed 200 After the shaper is deleted, it is expected to report the maximum speed supported by the SKU. But currently it is reporting 0, which is incorrect. Fix this inconsistency, by resetting apc->speed to apc->max_speed during deletion of the shaper object. This will improve readability and debuggability. Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://patch.msgid.link/1762369468-32570-1-git-send-email-ernis@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-10-31net: mana: Support HW link state eventsHaiyang Zhang
Handle the NIC hardware link state events received from the HW channel, then set the proper link state accordingly. And, add a feature bit, GDMA_DRV_CAP_FLAG_1_HW_VPORT_LINK_AWARE, to inform the NIC hardware this handler exists. Our MANA NIC only sends out the link state down/up messages when we need to let the VM rerun DHCP client and change IP address. So, add netif_carrier_on() in the probe(), let the NIC show the right initial state in /sys/class/net/ethX/operstate. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1761770601-16920-1-git-send-email-haiyangz@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-14net: mana: Reduce waiting time if HWC not respondingHaiyang Zhang
If HW Channel (HWC) is not responding, reduce the waiting time, so further steps will fail quickly. This will prevent getting stuck for a long time (30 minutes or more), for example, during unloading while HWC is not responding. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1757537841-5063-1-git-send-email-haiyangz@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-09-10net: mana: Remove redundant netdev_lock_ops_to_full() callsSaurabh Sengar
NET_SHAPER is always selected for MANA driver. When NET_SHAPER is enabled, netdev_lock_ops_to_full() reduces effectively to only an assert for lock, which is always held in the path when NET_SHAPER is enabled. Remove the redundant netdev_lock_ops_to_full() call. Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com> Link: https://patch.msgid.link/1757393830-20837-1-git-send-email-ssengar@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-08-19net: mana: Use page pool fragments for RX buffers instead of full pages to ↵Dipayaan Roy
improve memory efficiency. This patch enhances RX buffer handling in the mana driver by allocating pages from a page pool and slicing them into MTU-sized fragments, rather than dedicating a full page per packet. This approach is especially beneficial on systems with large base page sizes like 64KB. Key improvements: - Proper integration of page pool for RX buffer allocations. - MTU-sized buffer slicing to improve memory utilization. - Reduce overall per Rx queue memory footprint. - Automatic fallback to full-page buffers when: * Jumbo frames are enabled (MTU > PAGE_SIZE / 2). * The XDP path is active, to avoid complexities with fragment reuse. Testing on VMs with 64KB pages shows around 200% throughput improvement. Memory efficiency is significantly improved due to reduced wastage in page allocations. Example: We are now able to fit 35 rx buffers in a single 64kb page for MTU size of 1500, instead of 1 rx buffer per page previously. Tested: - iperf3, iperf2, and nttcp benchmarks. - Jumbo frames with MTU 9000. - Native XDP programs (XDP_PASS, XDP_DROP, XDP_TX, XDP_REDIRECT) for testing the XDP path in driver. - Memory leak detection (kmemleak). - Driver load/unload, reboot, and stress scenarios. Reviewed-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Dipayaan Roy <dipayanroy@linux.microsoft.com> Link: https://patch.msgid.link/20250814140410.GA22089@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-07-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc8). Conflicts: drivers/net/ethernet/microsoft/mana/gdma_main.c 9669ddda18fb ("net: mana: Fix warnings for missing export.h header inclusion") 755391121038 ("net: mana: Allocate MSI-X vectors dynamically") https://lore.kernel.org/20250711130752.23023d98@canb.auug.org.au Adjacent changes: drivers/net/ethernet/ti/icssg/icssg_prueth.h 6e86fb73de0f ("net: ti: icssg-prueth: Fix buffer allocation for ICSSG") ffe8a4909176 ("net: ti: icssg-prueth: Read firmware-names from device tree") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-10net: mana: fix spelling for mana_gd_deregiser_irq()Shradha Gupta
Fix the typo in function name mana_gd_deregiser_irq() Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/1752068580-27215-1-git-send-email-shradhagupta@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-09net: mana: Fix warnings for missing export.h header inclusionNaman Jain
Fix below warning in Hyper-V's MANA drivers that comes when kernel is compiled with W=1 option. Include export.h in driver files to fix it. * warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing Signed-off-by: Naman Jain <namjain@linux.microsoft.com> Reviewed-by: Saurabh Sengar <ssengar@linux.microsoft.com> Link: https://lore.kernel.org/r/20250611100459.92900-7-namjain@linux.microsoft.com Signed-off-by: Wei Liu <wei.liu@kernel.org> Message-ID: <20250611100459.92900-7-namjain@linux.microsoft.com>
2025-07-01net: mana: Handle Reset Request from MANA NICHaiyang Zhang
Upon receiving the Reset Request, pause the connection and clean up queues, wait for the specified period, then resume the NIC. In the cleanup phase, the HWC is no longer responding, so set hwc_timeout to zero to skip waiting on the response. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1751055983-29760-1-git-send-email-haiyangz@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-26net: mana: Fix build errors when CONFIG_NET_SHAPER is disabledErni Sri Satya Vennela
Fix build errors when CONFIG_NET_SHAPER is disabled, including: drivers/net/ethernet/microsoft/mana/mana_en.c:804:10: error: 'const struct net_device_ops' has no member named 'net_shaper_ops' 804 | .net_shaper_ops = &mana_shaper_ops, drivers/net/ethernet/microsoft/mana/mana_en.c:804:35: error: initialization of 'int (*)(struct net_device *, struct neigh_parms *)' from incompatible pointer type 'const struct net_shaper_ops *' [-Werror=incompatible-pointer-types] 804 | .net_shaper_ops = &mana_shaper_ops, Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Fixes: 75cabb46935b ("net: mana: Add support for net_shaper_ops") Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202506230625.bfUlqb8o-lkp@intel.com/ Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/1750851355-8067-1-git-send-email-ernis@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski
Cross-merge networking fixes after downstream PR (net-6.16-rc4). Conflicts: Documentation/netlink/specs/mptcp_pm.yaml 9e6dd4c256d0 ("netlink: specs: mptcp: replace underscores with dashes in names") ec362192aa9e ("netlink: specs: fix up indentation errors") https://lore.kernel.org/20250626122205.389c2cd4@canb.auug.org.au Adjacent changes: Documentation/netlink/specs/fou.yaml 791a9ed0a40d ("netlink: specs: fou: replace underscores with dashes in names") 880d43ca9aa4 ("netlink: specs: clean up spaces in brackets") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19net: mana: Record doorbell physical address in PF modeLong Li
MANA supports RDMA in PF mode. The driver should record the doorbell physical address when in PF mode. The doorbell physical address is used by the RDMA driver to map doorbell pages of the device to user-mode applications through RDMA verbs interface. In the past, they have been mapped to user-mode while the device is in VF mode. With the support for PF mode implemented, also expose those pages in PF mode. Support for PF mode is implemented in 290e5d3c49f6 ("net: mana: Add support for Multi Vports on Bare metal") Signed-off-by: Long Li <longli@microsoft.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/1750210606-12167-1-git-send-email-longli@linuxonhyperv.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-19net: mana: Set tx_packets to post gso processing packet countShradha Gupta
Allow tx_packets and tx_bytes counter in the driver to represent the packets transmitted post GSO processing. Currently they are populated as bigger pre-GSO packets and bytes Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-06-19net: mana: Handle unsupported HWC commandsErni Sri Satya Vennela
If any of the HWC commands are not recognized by the underlying hardware, the hardware returns the response header status of -1. Log the information using netdev_info_once to avoid multiple error logs in dmesg. Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Saurabh Singh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Dipayaan Roy <dipayanroy@linux.microsoft.com> Link: https://patch.msgid.link/1750144656-2021-5-git-send-email-ernis@linux.microsoft.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-19net: mana: Add speed support in mana_get_link_ksettingsErni Sri Satya Vennela
Allow mana ethtool get_link_ksettings operation to report the maximum speed supported by the SKU in mbps. The driver retrieves this information by issuing a HWC command to the hardware via mana_query_link_cfg(), which retrieves the SKU's maximum supported speed. These APIs when invoked on hardware that are older/do not support these APIs, the speed would be reported as UNKNOWN. Before: $ethtool enP30832s1 > Settings for enP30832s1: Supported ports: [ ] Supported link modes: Not reported Supported pause frame use: No Supports auto-negotiation: No Supported FEC modes: Not reported Advertised link modes: Not reported Advertised pause frame use: No Advertised auto-negotiation: No Advertised FEC modes: Not reported Speed: Unknown! Duplex: Full Auto-negotiation: off Port: Other PHYAD: 0 Transceiver: internal Link detected: yes After: $ethtool enP30832s1 > Settings for enP30832s1: Supported ports: [ ] Supported link modes: Not reported Supported pause frame use: No Supports auto-negotiation: No Supported FEC modes: Not reported Advertised link modes: Not reported Advertised pause frame use: No Advertised auto-negotiation: No Advertised FEC modes: Not reported Speed: 16000Mb/s Duplex: Full Auto-negotiation: off Port: Other PHYAD: 0 Transceiver: internal Link detected: yes Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Saurabh Singh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Link: https://patch.msgid.link/1750144656-2021-4-git-send-email-ernis@linux.microsoft.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-19net: mana: Add support for net_shaper_opsErni Sri Satya Vennela
Introduce support for net_shaper_ops in the MANA driver, enabling configuration of rate limiting on the MANA NIC. To apply rate limiting, the driver issues a HWC command via mana_set_bw_clamp() and updates the corresponding shaper object in the net_shaper cache. If an error occurs during this process, the driver restores the previous speed by querying the current link configuration using mana_query_link_cfg(). The minimum supported bandwidth is 100 Mbps, and only values that are exact multiples of 100 Mbps are allowed. Any other values are rejected. To remove a shaper, the driver resets the bandwidth to the maximum supported by the SKU using mana_set_bw_clamp() and clears the associated cache entry. If an error occurs during this process, the shaper details are retained. On the hardware that does not support these APIs, the net-shaper calls to set speed would fail. Set the speed: ./tools/net/ynl/pyynl/cli.py \ --spec Documentation/netlink/specs/net_shaper.yaml \ --do set --json '{"ifindex":'$IFINDEX', "handle":{"scope": "netdev", "id":'$ID' }, "bw-max": 200000000 }' Get the shaper details: ./tools/net/ynl/pyynl/cli.py \ --spec Documentation/netlink/specs/net_shaper.yaml \ --do get --json '{"ifindex":'$IFINDEX', "handle":{"scope": "netdev", "id":'$ID' }}' > {'bw-max': 200000000, > 'handle': {'scope': 'netdev'}, > 'ifindex': $IFINDEX, > 'metric': 'bps'} Delete the shaper object: ./tools/net/ynl/pyynl/cli.py \ --spec Documentation/netlink/specs/net_shaper.yaml \ --do delete --json '{"ifindex":'$IFINDEX', "handle":{"scope": "netdev","id":'$ID' }}' Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Saurabh Singh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Link: https://patch.msgid.link/1750144656-2021-3-git-send-email-ernis@linux.microsoft.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-19net: mana: Fix potential deadlocks in mana napi opsErni Sri Satya Vennela
When net_shaper_ops are enabled for MANA, netdev_ops_lock becomes active. MANA VF setup/teardown by netvsc follows this call chain: netvsc_vf_setup() dev_change_flags() ... __dev_open() OR __dev_close() dev_change_flags() holds the netdev mutex via netdev_lock_ops. Meanwhile, mana_create_txq() and mana_create_rxq() in mana_open() path call NAPI APIs (netif_napi_add_tx(), netif_napi_add_weight(), napi_enable()), which also try to acquire the same lock, risking deadlock. Similarly in the teardown path (mana_close()), netif_napi_disable() and netif_napi_del(), contend for the same lock. Switch to the _locked variants of these APIs to avoid deadlocks when the netdev_ops_lock is held. Fixes: d4c22ec680c8 ("net: hold netdev instance lock during ndo_open/ndo_stop") Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Saurabh Singh Sengar <ssengar@linux.microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Link: https://patch.msgid.link/1750144656-2021-2-git-send-email-ernis@linux.microsoft.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-06-17Merge branch 'shradha_v6.16-rc1' of https://github.com/shradhagupta6/linuxJakub Kicinski
Shradha Gupta says: ==================== Allow dyn MSI-X vector allocation of MANA In this patchset we want to enable the MANA driver to be able to allocate MSI-X vectors in PCI dynamically. The first patch exports pci_msix_prepare_desc() in PCI to be able to correctly prepare descriptors for dynamically added MSI-X vectors. The second patch adds the support of dynamic vector allocation in pci-hyperv PCI controller by enabling the MSI_FLAG_PCI_MSIX_ALLOC_DYN flag and using the pci_msix_prepare_desc() exported in first patch. The third patch adds a detailed description of the irq_setup(), to help understand the function design better. The fourth patch is a preparation patch for mana changes to support dynamic IRQ allocation. It contains changes in irq_setup() to allow skipping first sibling CPU sets, in case certain IRQs are already affinitized to them. The fifth patch has the changes in MANA driver to be able to allocate MSI-X vectors dynamically. If the support does not exist it defaults to older behavior. * 'shradha_v6.16-rc1' of https://github.com/shradhagupta6/linux: net: mana: Allocate MSI-X vectors dynamically net: mana: Allow irq_setup() to skip cpus for affinity net: mana: explain irq_setup() algorithm PCI: hv: Allow dynamic MSI-X vector allocation PCI/MSI: Export pci_msix_prepare_desc() for dynamic MSI-X allocations ==================== Link: https://patch.msgid.link/1749650984-9193-1-git-send-email-shradhagupta@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-17net: mana: Allocate MSI-X vectors dynamicallyShradha Gupta
Currently, the MANA driver allocates MSI-X vectors statically based on MANA_MAX_NUM_QUEUES and num_online_cpus() values and in some cases ends up allocating more vectors than it needs. This is because, by this time we do not have a HW channel and do not know how many IRQs should be allocated. To avoid this, we allocate 1 MSI-X vector during the creation of HWC and after getting the value supported by hardware, dynamically add the remaining MSI-X vectors. Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
2025-06-17net: mana: Allow irq_setup() to skip cpus for affinityShradha Gupta
In order to prepare the MANA driver to allocate the MSI-X IRQs dynamically, we need to enhance irq_setup() to allow skipping affinitizing IRQs to the first CPU sibling group. This would be for cases when the number of IRQs is less than or equal to the number of online CPUs. In such cases for dynamically added IRQs the first CPU sibling group would already be affinitized with HWC IRQ. Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Yury Norov [NVIDIA] <yury.norov@gmail.com>
2025-06-17net: mana: explain irq_setup() algorithmYury Norov
Commit 91bfe210e196 ("net: mana: add a function to spread IRQs per CPUs") added the irq_setup() function that distributes IRQs on CPUs according to a tricky heuristic. The corresponding commit message explains the heuristic. Duplicate it in the source code to make available for readers without digging git in history. Also, add more detailed explanation about how the heuristics is implemented. Signed-off-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com>
2025-06-16net: mana: Add handler for hardware servicing eventsHaiyang Zhang
To collaborate with hardware servicing events, upon receiving the special EQE notification from the HW channel, remove the devices on this bus. Then, after a waiting period based on the device specs, rescan the parent bus to recover the devices. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/1749834034-18498-1-git-send-email-haiyangz@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-06-10net: mana: Expose additional hardware counters for drop and TC via ethtool.Dipayaan Roy
Add support for reporting additional hardware counters for drop and TC using the ethtool -S interface. These counters include: - Aggregate Rx/Tx drop counters - Per-TC Rx/Tx packet counters - Per-TC Rx/Tx byte counters - Per-TC Rx/Tx pause frame counters The counters are exposed using ethtool_ops->get_ethtool_stats and ethtool_ops->get_strings. This feature/counters are not available to all versions of hardware. Signed-off-by: Dipayaan Roy <dipayanroy@linux.microsoft.com> Reviewed-by: Subbaraya Sundeep <sbhatta@marvell.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/20250609100103.GA7102@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-05-30Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma updates from Jason Gunthorpe: "Usual collection of driver fixes: - Small bug fixes and cleansup in hfi, hns, rxe, mlx5, mana siw - Further ODP functionality in rxe - Remote access MRs in mana, along with more page sizes - Improve CM scalability with a rwlock around the agent - More trace points for hns - ODP hmm conversion to the new two step dma API - Support the ethernet HW device in mana as well as the RNIC - Cleanups: - Use secs_to_jiffies() when appropriate - Use ERR_CAST() instead of naked casts - Don't use %pK in printk - Unusued functions removed - Allocation type matching" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (57 commits) RDMA/cma: Fix hang when cma_netevent_callback fails to queue_work RDMA/bnxt_re: Support extended stats for Thor2 VF RDMA/hns: Fix endian issue in trace events RDMA/mlx5: Avoid flexible array warning IB/cm: Remove dead code and adjust naming RDMA/core: Avoid hmm_dma_map_alloc() for virtual DMA devices RDMA/rxe: Break endless pagefault loop for RO pages RDMA/bnxt_re: Fix return code of bnxt_re_configure_cc RDMA/bnxt_re: Fix missing error handling for tx_queue RDMA/bnxt_re: Fix incorrect display of inactivity_cp in debugfs output RDMA/mlx5: Add support for 200Gbps per lane speeds RDMA/mlx5: Remove the redundant MLX5_IB_STAGE_UAR stage RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction net: mana: Add support for auxiliary device servicing events RDMA/mana_ib: unify mana_ib functions to support any gdma device RDMA/mana_ib: Add support of mana_ib for RNIC and ETH nic net: mana: Probe rdma device in mana driver RDMA/siw: replace redundant ternary operator with just rv RDMA/umem: Separate implicit ODP initialization from explicit ODP RDMA/core: Convert UMEM ODP DMA mapping to caching IOVA and page linkage ...
2025-05-28net: mana: Add support for Multi Vports on Bare metalHaiyang Zhang
To support Multi Vports on Bare metal, increase the device config response version. And, skip the register HW vport, and register filter steps, when the Bare metal hostmode is set. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1747671636-5810-1-git-send-email-haiyangz@microsoft.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-05-12net: mana: Add support for auxiliary device servicing eventsShiraz Saleem
Handle soc servicing events which require the rdma auxiliary device resources to be cleaned up during a suspend, and re-initialized during a resume. Signed-off-by: Shiraz Saleem <shirazsaleem@microsoft.com> Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Link: https://patch.msgid.link/1746633545-17653-5-git-send-email-kotaranov@linux.microsoft.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-05-12net: mana: Probe rdma device in mana driverKonstantin Taranov
Initialize gdma device for rdma inside mana module. For each gdma device, initialize an auxiliary ib device. Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Link: https://patch.msgid.link/1746633545-17653-2-git-send-email-kotaranov@linux.microsoft.com Reviewed-by: Long Li <longli@microsoft.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-04-20RDMA/mana_ib: Add support of 4M, 1G, and 2G pagesKonstantin Taranov
Check PF capability flag whether the 4M, 1G, and 2G pages are supported. Add these pages sizes to mana_ib, if supported. Define possible page sizes in enum gdma_page_type and remove unused enum atb_page_size. Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Link: https://patch.msgid.link/1744621234-26114-4-git-send-email-kotaranov@linux.microsoft.com Reviewed-by: Long Li <longli@microsoft.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-04-01Merge tag 'net-6.15-rc0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Rather tiny pull request, mostly so that we can get into our trees your fix to the x86 Makefile. Current release - regressions: - Revert "tcp: avoid atomic operations on sk->sk_rmem_alloc", error queue accounting was missed Current release - new code bugs: - 5 fixes for the netdevice instance locking work Previous releases - regressions: - usbnet: restore usb%d name exception for local mac addresses Previous releases - always broken: - rtnetlink: allocate vfinfo size for VF GUIDs when supported, avoid spurious GET_LINK failures - eth: mana: Switch to page pool for jumbo frames - phy: broadcom: Correct BCM5221 PHY model detection Misc: - selftests: drv-net: replace helpers for referring to other files" * tag 'net-6.15-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (22 commits) Revert "tcp: avoid atomic operations on sk->sk_rmem_alloc" bnxt_en: bring back rtnl lock in bnxt_shutdown eth: gve: add missing netdev locks on reset and shutdown paths selftests: mptcp: ignore mptcp_diag binary selftests: mptcp: close fd_in before returning in main_loop selftests: mptcp: fix incorrect fd checks in main_loop mptcp: fix NULL pointer in can_accept_new_subflow octeontx2-af: Free NIX_AF_INT_VEC_GEN irq octeontx2-af: Fix mbox INTR handler when num VFs > 64 net: fix use-after-free in the netdev_nl_sock_priv_destroy() selftests: net: use Path helpers in ping selftests: net: use the dummy bpf from net/lib selftests: drv-net: replace the rpath helper with Path objects net: lapbether: use netdev_lockdep_set_classes() helper net: phy: broadcom: Correct BCM5221 PHY model detection net: usb: usbnet: restore usb%d name exception for local mac addresses net/mlx5e: SHAMPO, Make reserved size independent of page size net: mana: Switch to page pool for jumbo frames MAINTAINERS: Add dedicated entries for phy_link_topology net: move replay logic to tc_modify_qdisc ...
2025-03-29Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma updates from Jason Gunthorpe: - Usual minor updates and fixes for bnxt_re, hfi1, rxe, mana, iser, mlx5, vmw_pvrdma, hns - Make rxe work on tun devices - mana gains more standard verbs as it moves toward supporting in-kernel verbs - DMABUF support for mana - Fix page size calculations when memory registration exceeds 4G - On Demand Paging support for rxe - mlx5 support for RDMA TRANSPORT flow tables and a new ucap mechanism to access control use of them - Optional RDMA_TX/RX counters per QP in mlx5 * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (73 commits) IB/mad: Check available slots before posting receive WRs RDMA/mana_ib: Fix integer overflow during queue creation RDMA/mlx5: Fix calculation of total invalidated pages RDMA/mlx5: Fix mlx5_poll_one() cur_qp update flow RDMA/mlx5: Fix page_size variable overflow RDMA/mlx5: Drop access_flags from _mlx5_mr_cache_alloc() RDMA/mlx5: Fix cache entry update on dereg error RDMA/mlx5: Fix MR cache initialization error flow RDMA/mlx5: Support optional-counters binding for QPs RDMA/mlx5: Compile fs.c regardless of INFINIBAND_USER_ACCESS config RDMA/core: Pass port to counter bind/unbind operations RDMA/core: Add support to optional-counters binding configuration RDMA/core: Create and destroy rdma_counter using rdma_zalloc_drv_obj() RDMA/mlx5: Add optional counters for RDMA_TX/RX_packets/bytes RDMA/core: Fix use-after-free when rename device name RDMA/bnxt_re: Support perf management counters RDMA/rxe: Fix incorrect return value of rxe_odp_atomic_op() RDMA/uverbs: Propagate errors from rdma_lookup_get_uobject() RDMA/mana_ib: Handle net event for pointing to the current netdev net: mana: Change the function signature of mana_get_primary_netdev_rcu ...
2025-03-28net: mana: Switch to page pool for jumbo framesHaiyang Zhang
Frag allocators, such as netdev_alloc_frag(), were not designed to work for fragsz > PAGE_SIZE. So, switch to page pool for jumbo frames instead of using page frag allocators. This driver is using page pool for smaller MTUs already. Cc: stable@vger.kernel.org Fixes: 80f6215b450e ("net: mana: Add support for jumbo frame") Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Reviewed-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Link: https://patch.msgid.link/1742920357-27263-1-git-send-email-haiyangz@microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-25net: mana: Add metadata support for xdp modeLorenzo Bianconi
Set metadata size building the skb from xdp_buff in mana driver. mana driver sets xdp headroom to XDP_PACKET_HEADROOM so the headroom is large enough to contain xdp_frame and xdp metadata. Please note this patch is just compiled tested. Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org> Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-6-b6075778f61f@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-03-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni
Cross-merge networking fixes after downstream PR (net-6.14-rc8). Conflict: tools/testing/selftests/net/Makefile 03544faad761 ("selftest: net: add proc_net_pktgen") 3ed61b8938c6 ("selftests: net: test for lwtunnel dst ref loops") tools/testing/selftests/net/config: 85cb3711acb8 ("selftests: net: Add test cases for link and peer netns") 3ed61b8938c6 ("selftests: net: test for lwtunnel dst ref loops") Adjacent commits: tools/testing/selftests/net/Makefile c935af429ec2 ("selftests: net: add support for testing SO_RCVMARK and SO_RCVPRIORITY") 355d940f4d5a ("Revert "selftests: Add IPv6 link-local address generation tests for GRE devices."") Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-18net: mana: Support holes in device list reply msgHaiyang Zhang
According to GDMA protocol, holes (zeros) are allowed at the beginning or middle of the gdma_list_devices_resp message. The existing code cannot properly handle this, and may miss some devices in the list. To fix, scan the entire list until the num_of_devs are found, or until the end of the list. Cc: stable@vger.kernel.org Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)") Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Reviewed-by: Shradha Gupta <shradhagupta@microsoft.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Link: https://patch.msgid.link/1741723974-1534-1-git-send-email-haiyangz@microsoft.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netPaolo Abeni
Cross-merge networking fixes after downstream PR (net-6.14-rc6). Conflicts: tools/testing/selftests/drivers/net/ping.py 75cc19c8ff89 ("selftests: drv-net: add xdp cases for ping.py") de94e8697405 ("selftests: drv-net: store addresses in dict indexed by ipver") https://lore.kernel.org/netdev/20250311115758.17a1d414@canb.auug.org.au/ net/core/devmem.c a70f891e0fa0 ("net: devmem: do not WARN conditionally after netdev_rx_queue_restart()") 1d22d3060b9b ("net: drop rtnl_lock for queue_mgmt operations") https://lore.kernel.org/netdev/20250313114929.43744df1@canb.auug.org.au/ Adjacent changes: tools/testing/selftests/net/Makefile 6f50175ccad4 ("selftests: Add IPv6 link-local address generation tests for GRE devices.") 2e5584e0f913 ("selftests/net: expand cmsg_ipv6.sh with ipv4") drivers/net/ethernet/broadcom/bnxt/bnxt.c 661958552eda ("eth: bnxt: do not use BNXT_VNIC_NTUPLE unconditionally in queue restart logic") fe96d717d38e ("bnxt_en: Extend queue stop/start for TX rings") Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-13net: mana: cleanup mana struct after debugfs_remove()Shradha Gupta
When on a MANA VM hibernation is triggered, as part of hibernate_snapshot(), mana_gd_suspend() and mana_gd_resume() are called. If during this mana_gd_resume(), a failure occurs with HWC creation, mana_port_debugfs pointer does not get reinitialized and ends up pointing to older, cleaned-up dentry. Further in the hibernation path, as part of power_down(), mana_gd_shutdown() is triggered. This call, unaware of the failures in resume, tries to cleanup the already cleaned up mana_port_debugfs value and hits the following bug: [ 191.359296] mana 7870:00:00.0: Shutdown was called [ 191.359918] BUG: kernel NULL pointer dereference, address: 0000000000000098 [ 191.360584] #PF: supervisor write access in kernel mode [ 191.361125] #PF: error_code(0x0002) - not-present page [ 191.361727] PGD 1080ea067 P4D 0 [ 191.362172] Oops: Oops: 0002 [#1] SMP NOPTI [ 191.362606] CPU: 11 UID: 0 PID: 1674 Comm: bash Not tainted 6.14.0-rc5+ #2 [ 191.363292] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 11/21/2024 [ 191.364124] RIP: 0010:down_write+0x19/0x50 [ 191.364537] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 53 48 89 fb e8 de cd ff ff 31 c0 ba 01 00 00 00 <f0> 48 0f b1 13 75 16 65 48 8b 05 88 24 4c 6a 48 89 43 08 48 8b 5d [ 191.365867] RSP: 0000:ff45fbe0c1c037b8 EFLAGS: 00010246 [ 191.366350] RAX: 0000000000000000 RBX: 0000000000000098 RCX: ffffff8100000000 [ 191.366951] RDX: 0000000000000001 RSI: 0000000000000064 RDI: 0000000000000098 [ 191.367600] RBP: ff45fbe0c1c037c0 R08: 0000000000000000 R09: 0000000000000001 [ 191.368225] R10: ff45fbe0d2b01000 R11: 0000000000000008 R12: 0000000000000000 [ 191.368874] R13: 000000000000000b R14: ff43dc27509d67c0 R15: 0000000000000020 [ 191.369549] FS: 00007dbc5001e740(0000) GS:ff43dc663f380000(0000) knlGS:0000000000000000 [ 191.370213] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 191.370830] CR2: 0000000000000098 CR3: 0000000168e8e002 CR4: 0000000000b73ef0 [ 191.371557] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 191.372192] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 [ 191.372906] Call Trace: [ 191.373262] <TASK> [ 191.373621] ? show_regs+0x64/0x70 [ 191.374040] ? __die+0x24/0x70 [ 191.374468] ? page_fault_oops+0x290/0x5b0 [ 191.374875] ? do_user_addr_fault+0x448/0x800 [ 191.375357] ? exc_page_fault+0x7a/0x160 [ 191.375971] ? asm_exc_page_fault+0x27/0x30 [ 191.376416] ? down_write+0x19/0x50 [ 191.376832] ? down_write+0x12/0x50 [ 191.377232] simple_recursive_removal+0x4a/0x2a0 [ 191.377679] ? __pfx_remove_one+0x10/0x10 [ 191.378088] debugfs_remove+0x44/0x70 [ 191.378530] mana_detach+0x17c/0x4f0 [ 191.378950] ? __flush_work+0x1e2/0x3b0 [ 191.379362] ? __cond_resched+0x1a/0x50 [ 191.379787] mana_remove+0xf2/0x1a0 [ 191.380193] mana_gd_shutdown+0x3b/0x70 [ 191.380642] pci_device_shutdown+0x3a/0x80 [ 191.381063] device_shutdown+0x13e/0x230 [ 191.381480] kernel_power_off+0x35/0x80 [ 191.381890] hibernate+0x3c6/0x470 [ 191.382312] state_store+0xcb/0xd0 [ 191.382734] kobj_attr_store+0x12/0x30 [ 191.383211] sysfs_kf_write+0x3e/0x50 [ 191.383640] kernfs_fop_write_iter+0x140/0x1d0 [ 191.384106] vfs_write+0x271/0x440 [ 191.384521] ksys_write+0x72/0xf0 [ 191.384924] __x64_sys_write+0x19/0x20 [ 191.385313] x64_sys_call+0x2b0/0x20b0 [ 191.385736] do_syscall_64+0x79/0x150 [ 191.386146] ? __mod_memcg_lruvec_state+0xe7/0x240 [ 191.386676] ? __lruvec_stat_mod_folio+0x79/0xb0 [ 191.387124] ? __pfx_lru_add+0x10/0x10 [ 191.387515] ? queued_spin_unlock+0x9/0x10 [ 191.387937] ? do_anonymous_page+0x33c/0xa00 [ 191.388374] ? __handle_mm_fault+0xcf3/0x1210 [ 191.388805] ? __count_memcg_events+0xbe/0x180 [ 191.389235] ? handle_mm_fault+0xae/0x300 [ 191.389588] ? do_user_addr_fault+0x559/0x800 [ 191.390027] ? irqentry_exit_to_user_mode+0x43/0x230 [ 191.390525] ? irqentry_exit+0x1d/0x30 [ 191.390879] ? exc_page_fault+0x86/0x160 [ 191.391235] entry_SYSCALL_64_after_hwframe+0x76/0x7e [ 191.391745] RIP: 0033:0x7dbc4ff1c574 [ 191.392111] Code: c7 00 16 00 00 00 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 80 3d d5 ea 0e 00 00 74 13 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 54 c3 0f 1f 00 55 48 89 e5 48 83 ec 20 48 89 [ 191.393412] RSP: 002b:00007ffd95a23ab8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 191.393990] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007dbc4ff1c574 [ 191.394594] RDX: 0000000000000005 RSI: 00005a6eeadb0ce0 RDI: 0000000000000001 [ 191.395215] RBP: 00007ffd95a23ae0 R08: 00007dbc50003b20 R09: 0000000000000000 [ 191.395805] R10: 0000000000000001 R11: 0000000000000202 R12: 0000000000000005 [ 191.396404] R13: 00005a6eeadb0ce0 R14: 00007dbc500045c0 R15: 00007dbc50001ee0 [ 191.396987] </TASK> To fix this, we explicitly set such mana debugfs variables to NULL after debugfs_remove() is called. Fixes: 6607c17c6c5e ("net: mana: Enable debugfs files for MANA device") Cc: stable@vger.kernel.org Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Michal Kubiak <michal.kubiak@intel.com> Link: https://patch.msgid.link/1741688260-28922-1-git-send-email-shradhagupta@linux.microsoft.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2025-03-13net: mana: Change the function signature of mana_get_primary_netdev_rcuLong Li
Change mana_get_primary_netdev_rcu() to mana_get_primary_netdev(), and return the ndev with refcount held. The caller is responsible for dropping the refcount. Also drop the check for IFF_SLAVE as it is not necessary if the upper device is present. Signed-off-by: Long Li <longli@microsoft.com> Link: https://patch.msgid.link/1741821332-9392-1-git-send-email-longli@linuxonhyperv.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-03-08net: move misc netdev_lock flavors to a separate headerJakub Kicinski
Move the more esoteric helpers for netdev instance lock to a dedicated header. This avoids growing netdevice.h to infinity and makes rebuilding the kernel much faster (after touching the header with the helpers). The main netdev_lock() / netdev_unlock() functions are used in static inlines in netdevice.h and will probably be used most commonly, so keep them in netdevice.h. Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20250307183006.2312761-1-kuba@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19net: mana: Add debug logs in MANA network driverErni Sri Satya Vennela
Add more logs to assist in debugging and monitoring driver behaviour, making it easier to identify potential issues during development and testing. Signed-off-by: Erni Sri Satya Vennela <ernis@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Link: https://patch.msgid.link/1739842455-23899-1-git-send-email-ernis@linux.microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-19net: mana: Allow tso_max_size to go up-to GSO_MAX_SIZEShradha Gupta
Allow the max aggregated pkt size to go up-to GSO_MAX_SIZE for MANA NIC. This patch only increases the max allowable gso/gro pkt size for MANA devices and does not change the defaults. Following are the perf benefits by increasing the pkt aggregate size from legacy gso_max_size value(64K) to newer one(up-to 511K IPv4 tests for i in {1..10}; do netperf -t TCP_RR -H 10.0.0.5 -p50000 -- -r80000,80000 -O MIN_LATENCY,P90_LATENCY,P99_LATENCY,THROUGHPUT|tail -1; done min p90 p99 Throughput gso_max_size 93 171 194 6594.25 97 154 180 7183.74 95 165 189 6927.86 96 165 188 6976.04 93 154 185 7338.05 64K 93 168 189 6938.03 94 169 189 6784.93 92 166 189 7117.56 94 179 191 6678.44 95 157 183 7277.81 min p90 p99 Throughput 93 134 146 8448.75 95 134 140 8396.54 94 137 148 8204.12 94 137 148 8244.41 94 128 139 8666.52 80K 94 141 153 8116.86 94 138 149 8163.92 92 135 142 8362.72 92 134 142 8497.57 93 136 148 8393.23 IPv6 Tests for i in {1..10}; do netperf -t TCP_RR -H fd00:9013:cadd::4 -p50000 -- -r80000,80000 -O MIN_LATENCY,P90_LATENCY,P99_LATENCY,THROUGHPUT|tail -1; done min p90 p99 Throughput gso_max_size 108 165 170 6673.2 101 169 189 6451.69 101 165 169 6737.65 102 167 175 6614.64 101 178 189 6247.13 64K 107 163 169 6678.63 106 176 187 6350.86 100 164 169 6617.36 102 163 170 6849.21 102 168 175 6605.7 min p90 p99 Throughput 108 155 166 7183 110 154 163 7268.87 109 152 159 7434.35 107 145 157 7569.15 107 149 164 7496.17 80K 110 154 159 7245.85 108 156 162 7266.24 109 145 158 7526.66 106 145 151 7785.75 111 148 157 7246.65 Tested on azure env with Accelerated Networking enabled and disabled. Signed-off-by: Shradha Gupta <shradhagupta@linux.microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2025-02-04RDMA/mana_ib: polling of CQs for GSI/UDKonstantin Taranov
Add polling for the kernel CQs. Process completion events for UD/GSI QPs. Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Link: https://patch.msgid.link/1737394039-28772-13-git-send-email-kotaranov@linux.microsoft.com Reviewed-by: Shiraz Saleem <shirazsaleem@microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-02-04RDMA/mana_ib: implement req_notify_cqKonstantin Taranov
Arm a CQ when req_notify_cq is called. Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Link: https://patch.msgid.link/1737394039-28772-11-git-send-email-kotaranov@linux.microsoft.com Reviewed-by: Shiraz Saleem <shirazsaleem@microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-02-04RDMA/mana_ib: UD/GSI work requestsKonstantin Taranov
Implement post send and post recv for UD/GSI QPs. Add information about posted requests into shadow queues. Co-developed-by: Shiraz Saleem <shirazsaleem@microsoft.com> Signed-off-by: Shiraz Saleem <shirazsaleem@microsoft.com> Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Link: https://patch.msgid.link/1737394039-28772-10-git-send-email-kotaranov@linux.microsoft.com Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-02-04net/mana: fix warning in the writer of client oobKonstantin Taranov
Do not warn on missing pad_data when oob is in sgl. Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Link: https://patch.msgid.link/1737394039-28772-9-git-send-email-kotaranov@linux.microsoft.com Reviewed-by: Shiraz Saleem <shirazsaleem@microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
2025-02-04RDMA/mana_ib: helpers to allocate kernel queuesKonstantin Taranov
Introduce helpers to allocate queues for kernel-level use. Signed-off-by: Konstantin Taranov <kotaranov@microsoft.com> Link: https://patch.msgid.link/1737394039-28772-4-git-send-email-kotaranov@linux.microsoft.com Reviewed-by: Shiraz Saleem <shirazsaleem@microsoft.com> Reviewed-by: Long Li <longli@microsoft.com> Signed-off-by: Leon Romanovsky <leon@kernel.org>
generated by cgit v1.2.3 (git 2.46.0) at 2025-12-11 13:20:43 +0000