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path: root/drivers/net/ethernet/microsoft/mana/gdma_main.c
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2022-09-22Merge tag 'net-6.0-rc7' of ↵Linus Torvalds1-0/+10
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from wifi, netfilter and can. A handful of awaited fixes here - revert of the FEC changes, bluetooth fix, fixes for iwlwifi spew. We added a warning in PHY/MDIO code which is triggering on a couple of platforms in a false-positive-ish way. If we can't iron that out over the week we'll drop it and re-add for 6.1. I've added a new "follow up fixes" section for fixes to fixes in 6.0-rcs but it may actually give the false impression that those are problematic or that more testing time would have caught them. So likely a one time thing. Follow up fixes: - nf_tables_addchain: fix nft_counters_enabled underflow - ebtables: fix memory leak when blob is malformed - nf_ct_ftp: fix deadlock when nat rewrite is needed Current release - regressions: - Revert "fec: Restart PPS after link state change" and the related "net: fec: Use a spinlock to guard `fep->ptp_clk_on`" - Bluetooth: fix HCIGETDEVINFO regression - wifi: mt76: fix 5 GHz connection regression on mt76x0/mt76x2 - mptcp: fix fwd memory accounting on coalesce - rwlock removal fall out: - ipmr: always call ip{,6}_mr_forward() from RCU read-side critical section - ipv6: fix crash when IPv6 is administratively disabled - tcp: read multiple skbs in tcp_read_skb() - mdio_bus_phy_resume state warning fallout: - eth: ravb: fix PHY state warning splat during system resume - eth: sh_eth: fix PHY state warning splat during system resume Current release - new code bugs: - wifi: iwlwifi: don't spam logs with NSS>2 messages - eth: mtk_eth_soc: enable XDP support just for MT7986 SoC Previous releases - regressions: - bonding: fix NULL deref in bond_rr_gen_slave_id - wifi: iwlwifi: mark IWLMEI as broken Previous releases - always broken: - nf_conntrack helpers: - irc: tighten matching on DCC message - sip: fix ct_sip_walk_headers - osf: fix possible bogus match in nf_osf_find() - ipvlan: fix out-of-bound bugs caused by unset skb->mac_header - core: fix flow symmetric hash - bonding, team: unsync device addresses on ndo_stop - phy: micrel: fix shared interrupt on LAN8814" * tag 'net-6.0-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (83 commits) selftests: forwarding: add shebang for sch_red.sh bnxt: prevent skb UAF after handing over to PTP worker net: marvell: Fix refcounting bugs in prestera_port_sfp_bind() net: sched: fix possible refcount leak in tc_new_tfilter() net: sunhme: Fix packet reception for len < RX_COPY_THRESHOLD udp: Use WARN_ON_ONCE() in udp_read_skb() selftests: bonding: cause oops in bond_rr_gen_slave_id bonding: fix NULL deref in bond_rr_gen_slave_id net: phy: micrel: fix shared interrupt on LAN8814 net/smc: Stop the CLC flow if no link to map buffers on ice: Fix ice_xdp_xmit() when XDP TX queue number is not sufficient net: atlantic: fix potential memory leak in aq_ndev_close() can: gs_usb: gs_usb_set_phys_id(): return with error if identify is not supported can: gs_usb: gs_can_open(): fix race dev->can.state condition can: flexcan: flexcan_mailbox_read() fix return value for drop = true net: sh_eth: Fix PHY state warning splat during system resume net: ravb: Fix PHY state warning splat during system resume netfilter: nf_ct_ftp: fix deadlock when nat rewrite is needed netfilter: ebtables: fix memory leak when blob is malformed netfilter: nf_tables: fix percpu memory leak at nf_tables_addchain() ...
2022-09-20net: mana: Add rmb after checking owner bitsHaiyang Zhang1-0/+10
Per GDMA spec, rmb is necessary after checking owner_bits, before reading EQ or CQ entries. Add rmb in these two places to comply with the specs. Cc: stable@vger.kernel.org Fixes: ca9c54d2d6a5 ("net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)") Reported-by: Sinan Kaya <Sinan.Kaya@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Reviewed-by: Dexuan Cui <decui@microsoft.com> Link: https://lore.kernel.org/r/1662928805-15861-1-git-send-email-haiyangz@microsoft.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-05PCI: Move PCI_VENDOR_ID_MICROSOFT/PCI_DEVICE_ID_HYPERV_VIDEO definitions to ↵Vitaly Kuznetsov1-4/+0
pci_ids.h There are already three places in kernel which define PCI_VENDOR_ID_MICROSOFT and two for PCI_DEVICE_ID_HYPERV_VIDEO and there's a need to use these from core VMBus code. Move the defines where they belong. No functional change. Reviewed-by: Michael Kelley <mikelley@microsoft.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> # pci_ids.h Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Link: https://lore.kernel.org/r/20220827130345.1320254-2-vkuznets@redhat.com Signed-off-by: Wei Liu <wei.liu@kernel.org>
2022-06-16net: mana: Add the Linux MANA PF driverDexuan Cui1-3/+36
This minimal PF driver runs on bare metal. Currently Ethernet TX/RX works. SR-IOV management is not supported yet. Signed-off-by: Dexuan Cui <decui@microsoft.com> Co-developed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2022-01-25net: mana: Use struct_size() helper in mana_gd_create_dma_region()Gustavo A. R. Silva1-2/+2
Make use of the struct_size() helper instead of an open-coded version, in order to avoid any potential type mistakes or integer overflows that, in the worst scenario, could lead to heap overflows. Also, address the following sparse warnings: drivers/net/ethernet/microsoft/mana/gdma_main.c:677:24: warning: using sizeof on a flexible structure Link: https://github.com/KSPP/linux/issues/174 Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org> Reviewed-by: Dexuan Cui <decui@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-10net: mana: Fix spelling mistake "calledd" -> "called"Colin Ian King1-1/+1
There is a spelling mistake in a dev_info message. Fix it. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Dexuan Cui <decui@microsoft.com> Link: https://lore.kernel.org/r/20211108201817.43121-1-colin.i.king@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2021-11-01net: mana: Support hibernation and kexecDexuan Cui1-34/+106
Implement the suspend/resume/shutdown callbacks for hibernation/kexec. Add mana_gd_setup() and mana_gd_cleanup() for some common code, and use them in the mand_gd_* callbacks. Reuse mana_probe/remove() for the hibernation path. Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01net: mana: Improve the HWC error handlingDexuan Cui1-4/+0
Currently when the HWC creation fails, the error handling is flawed, e.g. if mana_hwc_create_channel() -> mana_hwc_establish_channel() fails, the resources acquired in mana_hwc_init_queues() is not released. Enhance mana_hwc_destroy_channel() to do the proper cleanup work and call it accordingly. Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-11-01net: mana: Report OS info to the PF driverDexuan Cui1-0/+11
The PF driver might use the OS info for statistical purposes. Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-25net: mana: Add WARN_ON_ONCE in case of CQE read overflowHaiyang Zhang1-1/+1
This is not an expected case normally. Add WARN_ON_ONCE in case of CQE read overflow, instead of failing silently. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-25net: mana: Add support for EQ sharingHaiyang Zhang1-9/+22
The existing code uses (1 + #vPorts * #Queues) MSIXs, which may exceed the device limit. Support EQ sharing, so that multiple vPorts (NICs) can share the same set of MSIXs. And, report the EQ-sharing capability bit to the host, which means the host can potentially offer more vPorts and queues to the VM. Also update the resource limit checking and error handling for better robustness. Now, we support up to 256 virtual ports per VF (it was 16/VF), and support up to 64 queues per vPort (it was 16). Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-25net: mana: Move NAPI from EQ to CQHaiyang Zhang1-51/+4
The existing code has NAPI threads polling on EQ directly. To prepare for EQ sharing among vPorts, move NAPI from EQ to CQ so that one EQ can serve multiple CQs from different vPorts. The "arm bit" is only set when CQ processing is completed to reduce the number of EQ entries, which in turn reduce the number of interrupts on EQ. Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-04-20net: mana: Add a driver for Microsoft Azure Network Adapter (MANA)Dexuan Cui1-0/+1415
Add a VF driver for Microsoft Azure Network Adapter (MANA) that will be available in the future. Co-developed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Co-developed-by: Shachar Raindel <shacharr@microsoft.com> Signed-off-by: Shachar Raindel <shacharr@microsoft.com> Signed-off-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David S. Miller <davem@davemloft.net>