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path: root/drivers/net/ethernet/sfc/efx.c (follow)
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2016-10-18ethernet/sfc: use core min/max MTU checkingBert Kenward1-12/+2
Fixes: 61e84623ace3 ("net: centralize net_device min/max MTU checking") Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-06sfc: check MTU against minimum thresholdBert Kenward1-1/+11
Reported-by: Ma Yuying <yuma@redhat.com> Suggested-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Bert Kenward <bkenward@solarflare.com> Reviewed-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-12sfc: get timer configuration from adapterBert Kenward1-4/+5
On SFN8000 series adapters the MC provides a method to get the timer quantum and the maximum timer setting. We revert to the old values if the new call is unavailable. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-08-12sfc: set interrupt moderation via MCDIBert Kenward1-43/+46
SFN8000-series NICs require a new method of setting interrupt moderation, via MCDI. This is indicated by a workaround flag. This new MCDI command takes an explicit time value rather than a number of ticks. It therefore makes sense to also store the moderation values in terms of time, since that is what the ethtool interface is interested in. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15sfc: Disable VLAN filtering by default if not strictly requiredAndrew Rybchenko1-1/+9
If should be done after net_dev->hw_features initialization, to keep the feature there to be able to enable it later using ethtool. VLAN filtering is enforced and fixed if vPort requires usage of VLAN filters to receive tagged traffic. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15sfc: Take mac_lock before calling efx_ef10_filter_table_probeMartin Habets1-0/+2
When trying to enslave an SFC interface to a bond the following BUG_ON was hit: kernel BUG [in ef10.c]! CPU: 0 PID: 4383 Comm: ifenslave Tainted: G ... Call Trace: efx_ef10_filter_add_vlan+0x121/0x180 [sfc] efx_ef10_filter_table_probe+0x2a2/0x4f0 [sfc] efx_ef10_set_mac_address+0x370/0x6d0 [sfc] efx_set_mac_address+0x7d/0x120 [sfc] dev_set_mac_address+0x43/0xa0 bond_enslave+0x337/0xea0 [bonding] This comes from function efx_ef10_filter_vlan_sync_rx_mode. To solve the bug we ensure the mac_lock is taken before calling efx_ef10_filter_add_vlan. But to avoid a priority inversion mac_lock must be taken before filter_sem. To satisfy these requirements we end up taking mac_lock in efx_ef10_vport_set_mac_address, efx_ef10_set_mac_address, efx_ef10_sriov_set_vf_vlan and efx_probe_filters. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15sfc: Implement ndo_vlan_rx_{add, kill}_vid() callbacksAndrew Rybchenko1-2/+36
Supports HW VLAN filtering, en/disabled using ethtool. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-06-15sfc: Add efx_nic member with fixed netdev featuresAndrew Rybchenko1-4/+14
It allows to change set of fixed features on datapath reset. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-31sfc: Track RPS flow IDs per channel instead of per functionJon Cooper1-5/+27
Otherwise we get confused when two flows on different channels get the same flow ID. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-23sfc: Downgrade or remove some error messagesBert Kenward1-3/+4
Depending on configuration the NIC may return errors for unprivileged functions and/or VFs. Where these are expected and handled, reduce the level of any output. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: Eliminate NETIF_F_GEN_CSUM and NETIF_F_V[46]_CSUMTom Herbert1-1/+1
These netif flags are unnecessary convolutions. It is more straightforward to just use NETIF_F_HW_CSUM, NETIF_F_IP_CSUM, and NETIF_F_IPV6_CSUM directly. This patch also: - Cleans up can_checksum_protocol - Simplifies netdev_intersect_features Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: Rename NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASKTom Herbert1-1/+1
The name NETIF_F_ALL_CSUM is a misnomer. This does not correspond to the set of features for offloading all checksums. This is a mask of the checksum offload related features bits. It is incorrect to set both NETIF_F_HW_CSUM and NETIF_F_IP_CSUM or NETIF_F_IPV6 at the same time for features of a device. This patch: - Changes instances of NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK (where NETIF_F_ALL_CSUM is being used as a mask). - Changes bonding, sfc/efx, ipvlan, macvlan, vlan, and team drivers to use NEITF_F_HW_CSUM in features list instead of NETIF_F_ALL_CSUM. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-01sfc: Add PCI ID for Solarflare 8000 series 10/40G NICBert Kenward1-0/+6
Also add support for 7000 series 40G NIC VF. Signed-off-by: Bert Kenward <bkenward@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-18net: provide generic busy polling to all NAPI driversEric Dumazet1-1/+0
NAPI drivers no longer need to observe a particular protocol to benefit from busy polling (CONFIG_NET_RX_BUSY_POLL=y) napi_hash_add() and napi_hash_del() are automatically called from core networking stack, respectively from netif_napi_add() and netif_napi_del() This patch depends on free_netdev() and netif_napi_del() being called from process context, which seems to be the norm. Drivers might still prefer to call napi_hash_del() on their own, since they might combine all the rcu grace periods into a single one, knowing their NAPI structures lifetime, while core networking stack has no idea of a possible combining. Once this patch proves to not bring serious regressions, we will cleanup drivers to either remove napi_hash_del() or provide appropriate rcu grace periods combining. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-16sfc: constify pci_error_handlers structuresJulia Lawall1-1/+1
This pci_error_handlers structure is never modified, like all the other pci_error_handlers structures, so declare it as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-11-10sfc: don't call dma_supportedChristoph Hellwig1-5/+3
dma_set_mask already checks for a supported DMA mask before updating it, the call to dma_supported is redundant. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com> Cc: Shradha Shah <sshah@solarflare.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-10-27sfc: replace spinlocks with bit ops for busy poll lockingBert Kenward1-2/+2
This patch reduces the overhead of locking for busy poll. Previously the state was protected by a lock, whereas now it's manipulated solely with atomic operations. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-08-28sfc: Allow driver to cope with a lower number of VIs than it needs for RSSShradha Shah1-18/+39
Previously, the driver would refuse to load if it couldn't secure enough VIs from the MC to fulfill its RSS requirements. This was causing probe to fail on later functions in configurations where we'd run out of VIs, such as having many VFs. This change allows the driver to load with fewer VIs, down to a minimum of 2. A warning will be printed saying that RSS requirements were not met, possibly affecting performance. efx->max_tx_channels needs to be set to avoid going down the failure path in efx_probe_nic() immediately in the loop after the probe() NIC-type function. Also, Set rc=ENOSPC when bombing out of efx_probe_nic due to lack of VIs. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-09sfc: Report TX completions to BQL after all TX events in interruptPeter Dunning1-0/+14
The limit for BQL is updated each time we call netdev_tx_completed_queue. Without this patch the BQL limit was updated for every TX event we see. The issue was that this only updated the limit to handle the data we complete in two events as the first event wouldn't show that enough traffic had been processed between them. This was OK when interrupt moderation was off but not when it was on as more data had to be completed in a single interrupt. The patch changes this so that we do report the completion to BQL only when all the TX events in the interrupt have been processed. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-24Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-nextLinus Torvalds1-93/+224
Pull networking updates from David Miller: 1) Add TX fast path in mac80211, from Johannes Berg. 2) Add TSO/GRO support to ibmveth, from Thomas Falcon 3) Move away from cached routes in ipv6, just like ipv4, from Martin KaFai Lau. 4) Lots of new rhashtable tests, from Thomas Graf. 5) Run ingress qdisc lockless, from Alexei Starovoitov. 6) Allow servers to fetch TCP packet headers for SYN packets of new connections, for fingerprinting. From Eric Dumazet. 7) Add mode parameter to pktgen, for testing receive. From Alexei Starovoitov. 8) Cache access optimizations via simplifications of build_skb(), from Alexander Duyck. 9) Move page frag allocator under mm/, also from Alexander. 10) Add xmit_more support to hv_netvsc, from KY Srinivasan. 11) Add a counter guard in case we try to perform endless reclassify loops in the packet scheduler. 12) Extern flow dissector to be programmable and use it in new "Flower" classifier. From Jiri Pirko. 13) AF_PACKET fanout rollover fixes, performance improvements, and new statistics. From Willem de Bruijn. 14) Add netdev driver for GENEVE tunnels, from John W Linville. 15) Add ingress netfilter hooks and filtering, from Pablo Neira Ayuso. 16) Fix handling of epoll edge triggers in TCP, from Eric Dumazet. 17) Add an ECN retry fallback for the initial TCP handshake, from Daniel Borkmann. 18) Add tail call support to BPF, from Alexei Starovoitov. 19) Add several pktgen helper scripts, from Jesper Dangaard Brouer. 20) Add zerocopy support to AF_UNIX, from Hannes Frederic Sowa. 21) Favor even port numbers for allocation to connect() requests, and odd port numbers for bind(0), in an effort to help avoid ip_local_port_range exhaustion. From Eric Dumazet. 22) Add Cavium ThunderX driver, from Sunil Goutham. 23) Allow bpf programs to access skb_iif and dev->ifindex SKB metadata, from Alexei Starovoitov. 24) Add support for T6 chips in cxgb4vf driver, from Hariprasad Shenai. 25) Double TCP Small Queues default to 256K to accomodate situations like the XEN driver and wireless aggregation. From Wei Liu. 26) Add more entropy inputs to flow dissector, from Tom Herbert. 27) Add CDG congestion control algorithm to TCP, from Kenneth Klette Jonassen. 28) Convert ipset over to RCU locking, from Jozsef Kadlecsik. 29) Track and act upon link status of ipv4 route nexthops, from Andy Gospodarek. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1670 commits) bridge: vlan: flush the dynamically learned entries on port vlan delete bridge: multicast: add a comment to br_port_state_selection about blocking state net: inet_diag: export IPV6_V6ONLY sockopt stmmac: troubleshoot unexpected bits in des0 & des1 net: ipv4 sysctl option to ignore routes when nexthop link is down net: track link-status of ipv4 nexthops net: switchdev: ignore unsupported bridge flags net: Cavium: Fix MAC address setting in shutdown state drivers: net: xgene: fix for ACPI support without ACPI ip: report the original address of ICMP messages net/mlx5e: Prefetch skb data on RX net/mlx5e: Pop cq outside mlx5e_get_cqe net/mlx5e: Remove mlx5e_cq.sqrq back-pointer net/mlx5e: Remove extra spaces net/mlx5e: Avoid TX CQE generation if more xmit packets expected net/mlx5e: Avoid redundant dev_kfree_skb() upon NOP completion net/mlx5e: Remove re-assignment of wq type in mlx5e_enable_rq() net/mlx5e: Use skb_shinfo(skb)->gso_segs rather than counting them net/mlx5e: Static mapping of netdev priv resources to/from netdev TX queues net/mlx4_en: Use HW counters for rx/tx bytes/packets in PF device ...
2015-06-15sfc: mark state UNINIT after unregisterEdward Cree1-0/+1
Without this change, modprobe -r sfc hits the BUG_ON() in efx_pci_remove_main(). Fixes: e7fef9b45ae1 ("sfc: add sysfs entry to control MCDI tracing") Reported-by: Jarod Wilson <jarod@redhat.com> Reviewed-by: Jarod Wilson <jarod@redhat.com> Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-02sfc: leak vports if a VF is assigned during PF unloadDaniel Pieczko1-1/+3
If any VF is assigned as the PF is unloaded, do not attempt to remove its vport or the vswitch. These will be removed if the driver binds to the PF again, as an entity reset occurs during probe. A 'force' flag is added to efx_ef10_pci_sriov_disable() to distinguish between disabling SR-IOV and driver unload. SR-IOV cannot be disabled if VFs are assigned to guests. If the PF driver is unloaded while VFs are assigned, the driver may try to bind to the VF again at a later point if the driver has been reloaded and the VF returns to the same domain as the PF. In this case, the PF will not have a VF data structure, so the VF can check this and drop out of probe early. In this case, efx->vf_count will be zero but VFs will be present. The user is advised to remove the VF and re-create it. The check at the beginning of efx_ef10_pci_sriov_disable() that efx->vf_count is non-zero is removed to allow SR-IOV to be disabled in this case. Also, if the PF driver is unloaded, it will disable SR-IOV to remove these unknown VFs. By not disabling bus-mastering if VFs are still assigned, the VF will continue to pass traffic after the PF has been removed. When using the max_vfs module parameter, if VFs are already present do not try to initialise any more. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-02sfc: force removal of VF and vport on driver removalDaniel Pieczko1-1/+2
When the driver unloads, force the unbind and removal of any VFs in the host with the PF. The PF cannot remove vports and vswitches if they are still being used by a VF driver, and when unloading the sfc driver the removal order is not guaranteed, so the instruction from the PF to the VF to unbind enforces a suitable ordering so that vswitches and vports can be removed. As a result of this, manually unbinding the driver from a single PF will result in all of its VFs in the host also being removed. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-06-02sfc: Implement ndo_gets_phys_port_id() for EF10 VFsShradha Shah1-0/+1
Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-27sfc: add sysfs entry to control MCDI tracingEdward Cree1-7/+42
MCDI tracing is enabled per-function with a sysfs file /sys/class/net/<NET_DEV>/device/mcdi_logging Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-27sched/topology: Rename topology_thread_cpumask() to topology_sibling_cpumask()Bartosz Golaszewski1-1/+1
Rename topology_thread_cpumask() to topology_sibling_cpumask() for more consistency with scheduler code. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Benoit Cousson <bcousson@baylibre.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: Jean Delvare <jdelvare@suse.de> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Drokin <oleg.drokin@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Russell King <linux@arm.linux.org.uk> Cc: Viresh Kumar <viresh.kumar@linaro.org> Link: http://lkml.kernel.org/r/1432645896-12588-2-git-send-email-bgolaszewski@baylibre.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-05-21sfc: set the MAC address using MC_CMD_VADAPTOR_SET_MACShradha Shah1-2/+2
Add a set_mac_address() NIC-type function for EF10 only, and use this to set the MAC address on the vadaptor. For Siena and earlier, the MAC address continues to be set by MC_CMD_SET_MAC; this is still called on EF10, and including a MAC address in this command has no effect. The sriov_mac_address_changed() NIC-type function is no longer needed on EF10, but it is needed for Siena where it is used to update the peer address of the PF for VFDI. Change this to use the new set_mac_address function pointer. efx_ef10_sriov_mac_address_changed() is no longer called, as VFs will try to change the MAC address on their vadaptor rather than trying to change to the context of the PF to alter the vport. When a VF is running in direct passthrough mode with MAC spoofing enabled, it will be able to change the MAC address on its vadaptor. In this case, there is a link to the PF, so find the correct VF in its ef10_vf array and update the MAC address. ndo_set_mac_address() can be called during driver unload while bonding, and in this case the device has already been stopped, so don't call efx_net_open() to restart it after reconfiguration. efx->port_enabled is set to false in efx_stop_port(), so it is indicator of whether the device needs to be restarted. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-21sfc: add ndo_set_vf_link_state() function for EF10Edward Cree1-0/+1
Exercised with "ip link set <PF intf> vf <vf_i> state {auto|enable|disable}" Sets the reporting policy for VF link state to either - mirror physical link state - always up - always down get VF link state mode in efx_ef10_sriov_get_vf_config Exercised by "ip link show <PF intf>"; output will include a line like vf 0 MAC 12:34:56:78:9a:bc, link-state auto Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-21sfc: Change entity reset on MC reboot to a new datapath-only reset.Jon Cooper1-2/+6
Currently we do an entity reset when we detect an MC reboot. This messes up SRIOV because it leaves VFs orphaned. The extra reset is rather redundant anyway, since the MC reboot will have basically reset everything. This change replaces the entity reset after MC reboot with a simpler datapath reset that reallocates resources but doesn't perform the entity reset. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-21sfc: add ndo_set_vf_mac() function for EF10Shradha Shah1-2/+2
Implement a response to this entrypoint. The ndo_set_vf_mac() entrypoint is only exposed in the driver if CONFIG_SFC_SRIOV is defined. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-21sfc: protect filter table against use-after-freeEdward Cree1-10/+29
If MCDI timeouts are encountered during efx_ef10_filter_table_remove(), an FLR will be queued, but efx->filter_state will still be kfree()d. The queued FLR will then call efx_ef10_filter_table_restore(), which will try to use efx->filter_state. This previously caused a panic. This patch adds an rwsem to protect the existence of efx->filter_state, separately from the spinlock protecting its contents. Users which can race against efx_ef10_filter_table_remove() should down_read this rwsem. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-21sfc: save old MAC address in case sriov_mac_address_changed failsShradha Shah1-2/+11
Otherwise the PF and VF can disagree on the VF's MAC address and this leads to strange behaviour, up to and including kernel panics. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09sfc: Bind the sfc driver to any available VF'sShradha Shah1-1/+5
Add the device ID of the VF to the PCI device ID table. Added a boolean flag is_vf in efx_nic_type to differentiate between a VF and PF at probe time. This flag is useful in later patches while setting MAC address specially in the PCI-passthrough case. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09sfc: Add use of shared RSS contexts.Jon Cooper1-5/+12
Allow PFs to allocate shared RSS contexts if we exhaust our exclusive RSS contexts. Make VFs use shared RSS contexts in all cases. Spruce up error handling so that the shadow copy of the RSS table is updated after successful update, rather than in all cases, so that we report the actual contents of the RSS table after a failure to set it, rather than what we'd like it to be. Populate context_size parameter when vacuously allocating RSS context of size 1. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09sfc: Cope with permissions enforcement added to firmware for SR-IOVEdward Cree1-2/+3
* Accept EPERM in some simple cases, the following cases are handled: 1) efx_mcdi_read_assertion() Unprivileged PCI functions aren't allowed to GET_ASSERTS. We return success as it's up to the primary PF to deal with asserts. 2) efx_mcdi_mon_probe() in efx_ef10_probe() Unprivileged PCI functions aren't allowed to read sensor info, and worrying about sensor data is the primary PF's job. 3) phy_op->reconfigure() in efx_init_port() and efx_reset_up() Unprivileged functions aren't allowed to MC_CMD_SET_LINK, they just have to accept the settings (including flow-control, which is what efx_init_port() is worried about) they've been given. 4) Fallback to GET_WORKAROUNDS in efx_ef10_probe() Unprivileged PCI functions aren't allowed to set workarounds. So if efx_mcdi_set_workaround() fails EPERM, use efx_mcdi_get_workarounds() to find out if workaround_35388 is enabled. 5) If DRV_ATTACH gets EPERM, try without specifying fw-variant Unprivileged PCI functions have to use a FIRMWARE_ID of 0xffffffff (MC_CMD_FW_DONT_CARE). 6) Don't try to exit_assertion unless one had fired Previously we called efx_mcdi_exit_assertion even if efx_mcdi_read_assertion had received MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS. This is unnecessary, and the resulting MC_CMD_REBOOT, even if the AFTER_ASSERTION flag made it a no-op, would fail EPERM for unprivileged PCI functions. So make efx_mcdi_read_assertion return whether an assert happened, and only call efx_mcdi_exit_assertion if it has. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09sfc: Prepare to bind the sfc driver to the VF.Shradha Shah1-5/+10
Added efx_nic_type structure for VF. Mapped a different BAR for VF as it uses BAR 0 for memory. Added functions sriov_init and sriov_fini. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09sfc: create VEB vswitch and vport above default firmware setupDaniel Pieczko1-3/+27
Adds functions to allocate and free vswitches and vports; vadaptors are automatically allocated and freed when TX/RX queues are initialised and finalised. This vswitching structure is only created if the firmware supports it, so a check that full-featured firmware is running is performed first. If the MC resets, the vswitching infrastructure will need to be recreated, so mark the "must_probe_vswitching" flag when an MC reboot is detected. Don't try to create a vswitch if vf-count=0 This allocation of vswitches and vports does not currently support configuring VLAN tags, but that can be added in a future change. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09sfc: Enable VF's via a write to the sysfs file sriov_numvfsShradha Shah1-0/+23
This patch adds support for the use of sriov_configure on EF10 to enable Virtual Functions while the driver is loaded. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-05-09sfc: Own header for nic-specific sriov functions, single instance of netdev_ops and sriov removed from Falcon codeShradha Shah1-55/+49
By putting all the efx_{siena,ef10}_sriov_* declarations in {siena,ef10}_sriov.h, ensure they cannot be called from nic-generic code. Also fixes up an instance of this, where mcdi.c was calling efx_siena_sriov_flr. The single instance of netdev_ops should call general high level functions that can then call something adapter specific in efx_nic_type. We should only do adapter specialisation via efx_nic_type. Removal of sriov functionality from the Falcon code means that tests are needed for the presence of some callbacks. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-16Merge tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linuxLinus Torvalds1-3/+1
Pull powerpc updates from Michael Ellerman: - Numerous minor fixes, cleanups etc. - More EEH work from Gavin to remove its dependency on device_nodes. - Memory hotplug implemented entirely in the kernel from Nathan Fontenot. - Removal of redundant CONFIG_PPC_OF by Kevin Hao. - Rewrite of VPHN parsing logic & tests from Greg Kurz. - A fix from Nish Aravamudan to reduce memory usage by clamping nodes_possible_map. - Support for pstore on powernv from Hari Bathini. - Removal of old powerpc specific byte swap routines by David Gibson. - Fix from Vasant Hegde to prevent the flash driver telling you it was flashing your firmware when it wasn't. - Patch from Ben Herrenschmidt to add an OPAL heartbeat driver. - Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan Stancek. - Some fixes for migration from Tyrel Datwyler. - A new syscall to switch the cpu endian by Michael Ellerman. - Large series from Wei Yang to implement SRIOV, reviewed and acked by Bjorn. - A fix for the OPAL sensor driver from Cédric Le Goater. - Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman. - Large series from Daniel Axtens to make our PCI hooks per PHB rather than per machine. - Small patch from Sam Bobroff to explicitly abort non-suspended transactions on syscalls, plus a test to exercise it. - Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu. - Small patch to enable the hard lockup detector from Anton Blanchard. - Fix from Dave Olson for missing L2 cache information on some CPUs. - Some fixes from Michael Ellerman to get Cell machines booting again. - Freescale updates from Scott: Highlights include BMan device tree nodes, an MSI erratum workaround, a couple minor performance improvements, config updates, and misc fixes/cleanup. * tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (196 commits) powerpc/powermac: Fix build error seen with powermac smp builds powerpc/pseries: Fix compile of memory hotplug without CONFIG_MEMORY_HOTREMOVE powerpc: Remove PPC32 code from pseries specific find_and_init_phbs() powerpc/cell: Fix iommu breakage caused by controller_ops change powerpc/eeh: Fix crash in eeh_add_device_early() on Cell powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH powerpc/perf/hv-24x7: Fail 24x7 initcall if create_events_from_catalog() fails powerpc/pseries: Correct memory hotplug locking powerpc: Fix missing L2 cache size in /sys/devices/system/cpu powerpc: Add ppc64 hard lockup detector support oprofile: Disable oprofile NMI timer on ppc64 powerpc/perf/hv-24x7: Add missing put_cpu_var() powerpc/perf/hv-24x7: Break up single_24x7_request powerpc/perf/hv-24x7: Define update_event_count() powerpc/perf/hv-24x7: Whitespace cleanup powerpc/perf/hv-24x7: Define add_event_to_24x7_request() powerpc/perf/hv-24x7: Rename hv_24x7_event_update powerpc/perf/hv-24x7: Move debug prints to separate function powerpc/perf/hv-24x7: Drop event_24x7_request() powerpc/perf/hv-24x7: Use pr_devel() to log message ... Conflicts: tools/testing/selftests/powerpc/Makefile tools/testing/selftests/powerpc/tm/Makefile
2015-04-08sfc: Revert SRIOV changes.David S. Miller1-64/+54
This reverts commits: d92916f71a57582ce7276547510cedb2c10b6bd6 ("sfc: Own header for nic-specific sriov functions,") 25672dba9535b804331145379c79f835ba2205c5 ("sfc: Enable VF's via a write to the sysfs file sriov_numvfs") As they break the build with SRIOV disabled and there is no easy way to fix it the way things are arranged. Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-08sfc: Enable VF's via a write to the sysfs file sriov_numvfsShradha Shah1-0/+23
This patch adds support for the use of sriov_configure on EF10 to enable Virtual Functions while the driver is loaded. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-04-08sfc: Own header for nic-specific sriov functions, single instance of netdev_ops and sriov removed from Falcon codeShradha Shah1-54/+41
By putting all the efx_{siena,ef10}_sriov_* declarations in {siena,ef10}_sriov.h, ensure they cannot be called from nic-generic code. Also fixes up an instance of this, where mcdi.c was calling efx_siena_sriov_flr. The single instance of netdev_ops should call general high level functions that can then call something adapter specific in efx_nic_type. We should only do adapter specialisation via efx_nic_type. Removal of sriov functionality from the Falcon code means that tests are needed for the presence of some callbacks. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-24net/ethernet/sfc: Don't use of_node_to_eeh_dev()Benjamin Herrenschmidt1-3/+1
This is deprecated, it forces the driver to hop via the OF node that may or may not exist, instead use pci_dev_to_eeh_dev() which is simpler. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Shradha Shah <sshah@solarflare.com>
2015-03-08ethernet: codespell comment spelling fixesJoe Perches1-1/+1
To test a checkpatch spelling patch, I ran codespell against drivers/net/ethernet/. $ git ls-files drivers/net/ethernet/ | \ while read file ; do \ codespell -w $file; \ done I removed a false positive in e1000_hw.h Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-16sfc: use netdev_rss_key_fill() helperEric Dumazet1-1/+1
Use netdev_rss_key_fill() helper, as it provides better support for some bonding setups. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06sfc: Add NIC type operations to replace direct calls from efx.c into siena_sriov.cShradha Shah1-6/+7
Also add dummy functions where required to avoid NULL pointer dereference. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-11-06sfc: Rename implementations in siena_sriov.c to have a 'siena' prefixShradha Shah1-10/+11
Patch in preparation for the upcoming EF10 sriov support. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-12PCI: Remove DEFINE_PCI_DEVICE_TABLE macro useBenoit Taine1-1/+1
We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to meet kernel coding style guidelines. This issue was reported by checkpatch. A simplified version of the semantic patch that makes this change is as follows (http://coccinelle.lip6.fr/): // <smpl> @@ identifier i; declarer name DEFINE_PCI_DEVICE_TABLE; initializer z; @@ - DEFINE_PCI_DEVICE_TABLE(i) + const struct pci_device_id i[] = z; // </smpl> [bhelgaas: add semantic patch] Signed-off-by: Benoit Taine <benoit.taine@lip6.fr> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-07-22sfc: Add support for busy pollingAlexandre Rames1-3/+51
This patch adds the sfc driver code for implementing busy polling. It adds ndo_busy_poll method and locking between it and napi poll. It also adds each napi to the napi_hash right after netif_napi_add(). Uses efx_start_eventq and efx_stop_eventq in the self tests. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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