- 26 Mar, 2018 40 commits
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Moshe Shemesh authored
Added the following packets drop counter: Rx interface down dropped packets - counts packets which were received while the ETH interface was down. This counter will be shown on ethtool as a new counter called rx_if_down_packets. The implementation allocates a q_counter for drop rq which gets all the received traffic while the interface is down. Signed-off-by:
Moshe Shemesh <moshe@mellanox.com> Signed-off-by:
Saeed Mahameed <saeedm@mellanox.com>
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Moshe Shemesh authored
Added the following packets dropped while vport down statistics: Rx dropped while vport down - counts packets which were steered by e-switch to a vport, but dropped since the vport was down. This counter will be shown on ip link tool as part of the vport rx_dropped counter. Tx dropped while vport down - counts packets which were transmitted by a vport, but dropped due to vport logical link down. This counter will be shown on ip link tool as part of the vport tx_dropped counter. The counters are read from FW by command QUERY_VNIC_ENV. Signed-off-by:
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Moshe Shemesh authored
Added the following packets drop counter: Rx steering missed dropped packets - counts packets which were dropped due to miss on NIC rx steering rules. This counter will be shown on ethtool as a new counter called rx_steer_missed_packets. Signed-off-by:
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Moshe Shemesh authored
Add support for new FW command QUERY_VNIC_ENV. The command is used by the driver to query vnic diagnostic statistics from FW. Signed-off-by:
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Inbar Karmy authored
Implement set/get functions to configure PFC stall prevention timeout by tunables api through ethtool. By default the stall prevention timeout is configured to 8 sec. Timeout range is: 80-8000 msec. Enabling stall prevention with the auto timeout will set the timeout to 100 msec. Signed-off-by:
Inbar Karmy <inbark@mellanox.com> Signed-off-by:
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Inbar Karmy authored
In the event where the device unexpectedly becomes unresponsive for a long period of time, flow control mechanism may propagate pause frames which will cause congestion spreading to the entire network. To prevent this scenario, when the device is stalled for a period longer than a pre-configured timeout, flow control mechanisms are automatically disabled. This patch adds support for the ETHTOOL_PFC_STALL_PREVENTION as a tunable. This API provides support for configuring flow control storm prevention timeout (msec). Signed-off-by:
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Inbar Karmy authored
Add the needed capability bit and counters to device spec description. Expose the following two counters in ethtool: tx_pause_storm_warning_events: when the device is stalled for a period longer than a pre-configured watermark, the counter increase, allowing the debug utility an insight into current device status. tx_pause_storm_error_events: when the device is stalled for a period longer than a pre-configured timeout, the pause transmission is disabled, and the counter increase. Signed-off-by:
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David S. Miller authored
Ido Schimmel says: ==================== mlxsw: Offload IPv6 multicast routes Yuval says: The series is intended to allow offloading IPv6 multicast routes and is split into two parts: - First half of the patches continue extending ip6mr [& refactor ipmr] with missing bits necessary for the offloading - fib-notifications, mfc refcounting and default rule identification. - Second half of the patches extend functionality inside mlxsw, beginning with extending lower-parts to support IPv6 mroutes to host and later extending the router/mr internal APIs within the driver to accommodate support in ipv6 configurations. Lastly it adds support in the RTNL_FAMILY_IP6MR notifications, allowing driver to react and offload related routes. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Yuval Mintz authored
Add a new trap for PIMv6 packets. As PIM already has a designated trap group [ & rate limiter], simply use the same for PIMv6 as well. Signed-off-by:
Yuval Mintz <yuvalm@mellanox.com> Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
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Yuval Mintz authored
Following previous patches driver is ready to handle notifications arriving from ip6mr - start processing those when they arrive following the same manner ipmr currently goes through. This should enable driver to start offloading ipv6 multicast routes. Signed-off-by:
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Yuval Mintz authored
Populate the various operation structures meant for IPv6 with logic unique to that protocol suite. Signed-off-by:
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Yuval Mintz authored
spectrum_router and spectrum_mr have several APIs that are used to manipulate configurations originating from ipmr fib notifications. Following previous patches all the protocol-specifics that are necessary for the configuration are hidden within spectrum_mr. This allows us to clean the API and make sure that other than choosing the mr_table based on the fib notification family, spectrum_router wouldn't care about the source of the notification when passing it onward to spectrum_mr. This would later allow us to leverage the same code for fib notifications originating from ip6mr. Signed-off-by:
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Yuval Mintz authored
Current multicast routing logic in driver assumes it's always meant to deal with IPv4 multicast routes, leaving several placeholders for later IPv6 support [currently usually WARN()]. This patch changes the driver's internal multicast route struct into holding a common mr_mfc instead of the IPv4 mfc_cache. The various placeholders are grouped into 2: - Functions that require only the common bits; These remain and the restriction for IPv4-only is lifted. - Function that require IPv4-specifics - for handling these functions we add sets of operations that encapsulate the protocol differences Signed-off-by: -
Yuval Mintz authored
A step toward offloading IPv6 routing, this adds an additional multicast routing table meant for IPv6 [with its underlying TCAM region] and populates the default rule for IPv6 multicast packets. Following this, ingress IPv6 multicast packets would be trapped and delivered to the host CPU. Signed-off-by:
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Yuval Mintz authored
Since commit c011ec1b ("mlxsw: spectrum: Add the multicast routing offloading logic") spectrum_mr did not populate the protocol portion of the catcahall_route_params; mr-tcam logic worked correctly for ipv4 since the enum value for MLXSW_SP_L3_PROTO_IPV4 is '0'. Explicitly fill the protocol as we'll soon need to differentiate between ipv4 and ipv6. Signed-off-by:
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Yuval Mintz authored
Add new fields for the rmft register necessary for setting the IPv6 multicast FIB table. Add a matching wrapper function for filling the register in the IPv6 scenario. Signed-off-by:
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Yuval Mintz authored
Similarly to what was done in commit 4af5964e ("mlxsw: reg: Configure RIF to forward IPv4 multicast packets by default") we now set two additional bits to allow IPv6 multicast forwarding. Signed-off-by:
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Yuval Mintz authored
Since ipmr and ip6mr are using the same mr_mfc struct at their core, we can now refactor the ipmr_cache_{hold,put} logic and apply refcounting to both ipmr and ip6mr. Signed-off-by: -
Yuval Mintz authored
Add the ability to discern whether a given FIB rule notification relates to the default rule inserted when registering ip6mr or a different one. Would later be used by drivers wishing to offload ipv6 multicast routes but unable to offload rules other than the default one. Signed-off-by:
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Yuval Mintz authored
In similar fashion to ipmr, support fib notifications for ip6mr mfc and vif related events. This would later allow drivers to react to said notifications and offload the IPv6 mroutes. Signed-off-by:
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Yuval Mintz authored
Since all the primitive elements used for the notification done by ipmr are now common [mr_table, mr_mfc, vif_device] we can refactor the logic for dumping them to a common file. Signed-off-by:
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Yuval Mintz authored
Like vif notifications, move the notifier struct for MFC as well as its helpers into a common file; Currently they're only used by ipmr. Signed-off-by:
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Yuval Mintz authored
The fib-notifiers are tightly coupled with the vif_device which is already common. Move the notifier struct definition and helpers to the common file; Currently they're only used by ipmr. Signed-off-by:
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David S. Miller authored
Kirill Tkhai says: ==================== Converting pernet_operations (part #7.1) this is a resending of the 4 patches from path #7. Anna kindly reviewed them and suggested to take the patches through net tree, since there is pernet_operations::async only in net-next.git. There is Anna's acks on every header, the rest of patch has no changes. ==================== Signed-off-by: -
Kirill Tkhai authored
These pernet_operations create and destroy per-net pipe and dentry, and they seem safe to be marked as async. Signed-off-by:
Kirill Tkhai <ktkhai@virtuozzo.com> Acked-by:
Anna Schumaker <Anna.Schumaker@netapp.com> Signed-off-by:
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Kirill Tkhai authored
These pernet_operations look similar to rpcsec_gss_net_ops, they just create and destroy another cache. Also they create and destroy directory. So, they also look safe to be async. Signed-off-by:
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Kirill Tkhai authored
These pernet_operations look similar to rpcsec_gss_net_ops, they just create and destroy another caches. So, they also can be async. Signed-off-by:
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Kirill Tkhai authored
These pernet_operations initialize and destroy sunrpc_net_id refered per-net items. Only used global list is cache_list, and accesses already serialized. sunrpc_destroy_cache_detail() check for list_empty() without cache_list_lock, but when it's called from unregister_pernet_subsys(), there can't be callers in parallel, so we won't miss list_empty() in this case. Signed-off-by:
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David S. Miller authored
Pieter Jansen van Vuuren says: ==================== nfp: flower: add ip fragmentation offloading support This set allows offloading IP fragmentation classification. It Implements ip fragmentation match offloading for both IPv4 and IPv6 and offloads frag, nofrag, first and nofirstfrag classification. ==================== Signed-off-by: -
Pieter Jansen van Vuuren authored
Implement ip fragmentation match offloading for both IPv4 and IPv6. Allows offloading frag, nofrag, first and nofirstfrag classification. Signed-off-by:
Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Reviewed-by:
Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by:
Simon Horman <simon.horman@netronome.com> Signed-off-by:
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Pieter Jansen van Vuuren authored
Refactored shared ip header code for IPv4 and IPv6 in match offload. Signed-off-by:
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David S. Miller authored
Sinan Kaya says: ==================== netdev: Eliminate duplicate barriers on weakly-ordered archs Code includes wmb() followed by writel() in multiple places. writel() already has a barrier on some architectures like arm64. This ends up CPU observing two barriers back to back before executing the register write. Since code already has an explicit barrier call, changing writel() to writel_relaxed(). I did a regex search for wmb() followed by writel() in each drivers directory. I scrubbed the ones I care about in this series. I considered "ease of change", "popular usage" and "performance critical path" as the determining criteria for my filtering. We used relaxed API heavily on ARM for a long time but it did not exist on other architectures. For this reason, relaxed architectures have been paying double penalty in order to use the common drivers. Now that relaxed API is present on all architectures, we can go and scrub all drivers to see what needs to change and what can remain. We start with mostly used ones and hope to increase the coverage over time. It will take a while to cover all drivers. Feel free to apply patches individually. Changes since v6: - bring back amazon ena and add mmiowb, remove ena_com_write_sq_doorbell_rel(). - remove extra mmiowb in bnx2x - correct spelling mistake in bnx2x: Replace doorbell barrier() with wmb() ==================== Signed-off-by: -
Sinan Kaya authored
Code includes barrier() followed by writel(). writel() already has a barrier on some architectures like arm64. This ends up CPU observing two barriers back to back before executing the register write. Create a new wrapper function with relaxed write operator. Use the new wrapper when a write is following a barrier(). Since code already has an explicit barrier call, changing writel() to writel_relaxed() and adding mmiowb() for ordering protection. Signed-off-by:
Sinan Kaya <okaya@codeaurora.org> Signed-off-by:
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Sinan Kaya authored
Code includes wmb() followed by writel(). writel() already has a barrier on some architectures like arm64. This ends up CPU observing two barriers back to back before executing the register write. Create a new wrapper function with relaxed write operator. Use the new wrapper when a write is following a wmb(). Since code already has an explicit barrier call, changing writel() to writel_relaxed(). Also add mmiowb() so that write code doesn't move outside of scope. Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Sinan Kaya authored
Code includes wmb() followed by writel(). writel() already has a barrier on some architectures like arm64. This ends up CPU observing two barriers back to back before executing the register write. Create a new wrapper function with relaxed write operator. Use the new wrapper when a write is following a wmb(). Signed-off-by:
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Sinan Kaya authored
Code includes wmb() followed by writel(). writel() already has a barrier on some architectures like arm64. This ends up CPU observing two barriers back to back before executing the register write. Since code already has an explicit barrier call, changing writel() to writel_relaxed(). Signed-off-by:
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Sinan Kaya authored
barrier() doesn't guarantee memory writes to be observed by the hardware on all architectures. barrier() only tells compiler not to move this code with respect to other read/writes. If memory write needs to be observed by the HW, wmb() is the right choice. Signed-off-by:
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Sinan Kaya authored
Code includes wmb() followed by writel(). writel() already has a barrier on some architectures like arm64. This ends up CPU observing two barriers back to back before executing the register write. Since code already has an explicit barrier call, changing writel() to writel_relaxed(). Signed-off-by:
Manish Chopra <manish.chopra@cavium.com> Signed-off-by:
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Sinan Kaya authored
Code includes wmb() followed by writel(). writel() already has a barrier on some architectures like arm64. This ends up CPU observing two barriers back to back before executing the register write. Since code already has an explicit barrier call, changing code to wmb() writel_relaxed() mmiowb() for multi-arch support. Signed-off-by:
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David S. Miller authored
Sergei Shtylyov says: ==================== sh_eth: unify the SoC feature checks Here's a set of 5 patches against DaveM's 'net-next.git' repo. The Ether driver sometimes uses the bit fields in 'struct sh_eth_cpu_data' to check which Ether registers exist in a certain SoC and sometimes it uses sh_eth_is_{gether|rz_fast_ether}() which basically compares 2 pointers (1 of them being constant) -- the latter is definitely not a strongest feature of the RISC CPUs (be it SH or ARM), so I decided to get rid of this type of the feature checks in favour of the bit fields (I've also made use of a 32-bit value and method pointer where appropriate)... [1/5] sh_eth: add sh_eth_cpu_data::soft_reset() method [2/5] sh_eth: add sh_eth_cpu_data::edtrr_trns value [3/5] sh_eth: add sh_eth_cpu_data::xdfar_rw flag [4/5] sh_eth: add sh_eth_cpu_data::no_tx_cntr flag [5/5] sh_eth: add sh_eth_cpu_data::cexcr flag ==================== Signed-off-by:
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