- 10 Jan, 2018 40 commits
-
-
Edward Cree authored
Store and handle ethtool link mode masks within the driver instead of just a single u32. However, quite a significant amount of existing code wants to manipulate the masks directly, and thus now uses the first unsigned long (i.e. mask[0]) as though it were a legacy u32 mask. This is ok because all the bits that code is interested in are in the first 32 bits of the mask; but it might be a good idea to change them in future to use the proper bitmap API. Signed-off-by:
Edward Cree <ecree@solarflare.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
-
Edward Cree authored
Only handles direct speed setting, not autoneg, because the driver is still trying to pretend it uses the legacy ethtool API which doesn't have advertised/supported bits for 25/50/100G. Signed-off-by:
-
David S. Miller authored
Jiri Pirko says: ==================== mlxsw qdisc refactoring This patchset refactors the qdisc handling in mlxsw driver in order to make it more object oriented like. It helps readability, laying the groundwork for the offloading of additional qdiscs by the driver This patchset also makes the qdiscs statistics more generic. Patch 1 moves the qdiscs declaration to the spectrum_qdisc.c Patches 2-3 clean the offloaded stats requests. Patch 2 changes the RED generic stats struct to be sharable by other offloaded qdiscs. Patch 3 changes the xstats request to be like the stats. Note that these patches are outside the driver scope. Patches 4-5 clean the statistics related functions and structs within the driver. Patches 6-7 decrease the need for the same parameters to be sent to many functions. Patches 8-11 create a functions pointers struct, to make the qdiscs handling more object oriented like. ==================== Signed-off-by: -
Nogah Frankel authored
If a qdisc is being replaced by another qdisc of the same type, it can simply override over its configuration. However, if it replaces a qdisc of another type, it needs to be removed before setting the new qdisc. Signed-off-by:
Nogah Frankel <nogahf@mellanox.com> Reviewed-by:
Yuval Mintz <yuvalm@mellanox.com> Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Signed-off-by:
-
Nogah Frankel authored
Create a generic qdisc replace function. For that goal, add three functions to the qdisc ops struct: * check_params: Checks if the given parameters are offloadable. * replace: Offload the given parameters. * clean_stats: clean the qdisc stats for the offloaded qdisc. integrate RED offloading into using the new internal replace API. Signed-off-by:
-
Nogah Frankel authored
Add a destroy function to the qdiscs ops struct. Create a generic qdisc destroy function, that clears the qdisc metadata as well as calling the specific qdisc destroy function. Signed-off-by:
-
Nogah Frankel authored
Qdisc struct have the Qdisc_class_ops struct. This patch introduces the similar ops struct for the mlxsw_sp_qdisc_ops struct. It allows better readability as well as code reusability for the common parts of some functions like destroy. The first operations to be added are the statistics getters. Signed-off-by:
-
Nogah Frankel authored
Every qdisc op gets the qdisc handle ID as well as its location. Each one of them, beside replace, checks if the handle doesn't match the qdisc in the given location, and if so, it returns without running the actual op. Unite these checks to one comparison function and avoid sending the handle id to these ops. Signed-off-by:
-
Nogah Frankel authored
Tclass number is needed for most of the operations related to the qdisc in the driver. Create a field for it in the mlxsw_sp_qdisc instead of passing it to every function as parameter. Signed-off-by:
-
Nogah Frankel authored
Improve readability by changing the clean stats function to handle only RED. Qdiscs that will be offloaded in the future will have a clean stats function of their own. Signed-off-by:
-
Nogah Frankel authored
Clean RED offloaded stats and make them more generic by breaking the generic qdisc stats to a struct of their own. Signed-off-by:
-
Nogah Frankel authored
Change the value of the xstats requested from the driver for offloaded RED to be incremental, like the normal stats. It increases consistency - if a qdisc stops being offloaded its xstats don't change. Signed-off-by:
-
Nogah Frankel authored
Change the name of the stats struct to be generic, so it could be used for other qdisc offload, that will be added in the next patches. Signed-off-by:
-
Nogah Frankel authored
Move all the qdisc related data from the spectrum.h to spectrum_qdisc.c. Create an init and fini functions for the qdiscs. Signed-off-by:
-
Ido Schimmel authored
Signed-off-by:
Ido Schimmel <idosch@mellanox.com> Signed-off-by:
-
Wei Yongjun authored
Fixes the following sparse warning: net/ipv4/tcp.c:1736:6: warning: symbol 'tcp_recv_timestamp' was not declared. Should it be static? Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
-
Wei Yongjun authored
Fix to return a negative error code from the xdp_rxq_info_reg() error handling case instead of 0, as done elsewhere in this function. Fixes: 0ddf5432 ("xdp/mlx5: setup xdp_rxq_info") Signed-off-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
-
Arjun Vynipadath authored
We'd come in with SGE_FL_BUFFER_SIZE[0] and [1] both equal to 64KB and the extant logic would flag that as an error. This was already fixed in cxgb4 driver with "92ddcc7b cxgb4: Fix some small bugs in t4_sge_init_soft() when our Page Size is 64KB". Original Work by: Casey Leedom <leedom@chelsio.com> Signed-off-by:
Arjun Vynipadath <arjun@chelsio.com> Signed-off-by:
Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by:
-
Stephen Rothwell authored
Fixes: fc72d1d5 ("tuntap: XDP transmission") Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Acked-by:
Jason Wang <jasowang@redhat.com> Signed-off-by:
-
Jesper Dangaard Brouer authored
The commit e817f856 ("xdp: generic XDP handling of xdp_rxq_info") removed some ifdef CONFIG_SYSFS in net/core/dev.c, but forgot to remove the corresponding ifdef's in include/linux/netdevice.h. Fixes: e817f856 ("xdp: generic XDP handling of xdp_rxq_info") Reported-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
-
Andrew Lunn authored
The internal PHYs in the mv88e6390 switch have a temperature sensor. It uses a different register layout to other PHY currently supported. It also has an errata, in that some reads of the sensor result in bad values. So a number of reads need to be made, and the average taken. Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Reviewed-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
-
David S. Miller authored
Andy Gospodarek says: ==================== net: create dynamic software irq moderation library This converts the dynamic interrupt moderation library from the mlx5e driver into a library so it can be used by any driver. The penultimate patch in this set adds support for this new dynamic interrupt moderation library in the bnxt_en driver and the last patch creates an entry in the MAINTAINERS file for this library. The main purpose of this code is to allow an administrator to make sure that default coalesce settings are optimized for low latency, but quickly adapt to handle high throughput/bulk traffic by altering how much time passes before popping an interrupt. For any new driver the following changes would be needed to use this library: - add elements in ring struct to track items needed by this library - create function that can be called to actually set coalesce settings for the driver Credit to Rob Rice and Lee Reed for doing some of the initial proof of concept and testing for this patch and Tal Gilboa and Or Gerlitz for their comments, etc on this set. v4: Fix build breakage for VF representers noticed by kbuild test robot. Thanks for being so courteous, kbuild test robot! v3: bnxt_en fix from Michael Chan, comment suggestion from Vasundhara Volam, and small mlx5e header file fix from Tal Gilboa. v2: Spelling fixes from Stephen Hemminger, bnxt_en suggestions from Michael Chan, spelling and formatting fixes from Or Gerlitz, and spelling and mlx5e changes suggested by Tal Gilboa. ==================== Signed-off-by: -
Andy Gospodarek authored
Signed-off-by:
Andy Gospodarek <gospo@broadcom.com> Signed-off-by:
Tal Gilboa <talgi@mellanox.com> Acked-by:
Saeed Mahameed <saeedm@mellanox.com> Signed-off-by:
-
Andy Gospodarek authored
This implements the changes needed for the bnxt_en driver to add support for dynamic interrupt moderation per ring. This does add additional counters in the receive path, but testing shows that any additional instructions are offset by throughput gain when the default configuration is for low latency. Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
-
Andy Gospodarek authored
Simplify the arguments net_dim() by formatting them into a struct net_dim_sample before calling the function. Signed-off-by:
-
Andy Gospodarek authored
This move allows drivers to add private structure elements to track the number of packets, bytes, and interrupts events per ring. A driver also defines a workqueue handler to act on this collected data once per poll and modify the coalescing parameters per ring. Signed-off-by:
-
Andy Gospodarek authored
Change all appropriate mlx5_am* and MLX5_AM* references to net_dim and NET_DIM, respectively, in code that handles dynamic interrupt moderation. Also change all references from 'am' to 'dim' when used as local variables and add generic profile references. Signed-off-by:
-
Andy Gospodarek authored
These functions were identified as ones that could be made generic and used by multiple drivers. Most of the contents of en_rx_am.c are moved to net_dim.c. Signed-off-by:
-
Andy Gospodarek authored
More movement to help make this code more generic. Signed-off-by:
-
Andy Gospodarek authored
This makes mlx5e_am_sample more generic so that it can be called easily from a driver that does not use the same data structure to store these values in a single structure. Signed-off-by:
-
Andy Gospodarek authored
Move these to newly created file to prepare to move these functions to a library. Signed-off-by:
-
Andy Gospodarek authored
Create new header file to prepare to move code that handles irq moderation to a library that lives in a header file. Signed-off-by:
-
David S. Miller authored
Ido Schimmel says: ==================== ipv6: Add support for non-equal-cost multipath This set aims to add support for IPv6 non-equal-cost multipath routes. The first three patches convert multipath selection to use the hash-threshold method (RFC 2992) instead of modulo-N. The same method is employed by the IPv4 routing code since commit 0e884c78 ("ipv4: L3 hash-based multipath"). Unlike modulo-N, with hash-threshold only the flows near the region boundaries are affected when a nexthop is added or removed. In addition, it allows us to easily add support for non-equal-cost multipath in the last patch by sizing the different regions according to the provided weights. ==================== Signed-off-by:
-
Ido Schimmel authored
The use of hash-threshold instead of modulo-N makes it trivial to add support for non-equal-cost multipath. Instead of dividing the multipath hash function's output space equally between the nexthops, each nexthop is assigned a region size which is proportional to its weight. Signed-off-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
-
Ido Schimmel authored
Now that each nexthop stores its region boundary in the multipath hash function's output space, we can use hash-threshold instead of modulo-N in multipath selection. This reduces the number of checks we need to perform during lookup, as dead and linkdown nexthops are assigned a negative region boundary. In addition, in contrast to modulo-N, only flows near region boundaries are affected when a nexthop is added or removed. Signed-off-by:
-
Ido Schimmel authored
The hash thresholds assigned to IPv6 nexthops are in the range of [-1, 2^31 - 1], where a negative value is assigned to nexthops that should not be considered during multipath selection. Therefore, in a similar fashion to IPv4, we need to use the upper 31-bits of the multipath hash for multipath selection. Signed-off-by:
-
Ido Schimmel authored
Before we convert IPv6 to use hash-threshold instead of modulo-N, we first need each nexthop to store its region boundary in the hash function's output space. The boundary is calculated by dividing the output space equally between the different active nexthops. That is, nexthops that are not dead or linkdown. The boundaries are rebalanced whenever a nexthop is added or removed to a multipath route and whenever a nexthop becomes active or inactive. Signed-off-by:
-
Jason Wang authored
This patch tries to batched used ring update during RX. This is pretty fit for the case when guest is much faster (e.g dpdk based backend). In this case, used ring is almost empty: - we may get serious cache line misses/contending on both used ring and used idx. - at most 1 packet could be dequeued at one time, batching in guest does not make much effect. Update used ring in a batch can help since guest won't access the used ring until used idx was advanced for several descriptors and since we advance used ring for every N packets, guest will only need to access used idx for every N packet since it can cache the used idx. To have a better interaction for both batch dequeuing and dpdk batching, VHOST_RX_BATCH was used as the maximum number of descriptors that could be batched. Test were done between two machines with 2.40GHz Intel(R) Xeon(R) CPU E5-2630 connected back to back through ixgbe. Traffic were generated on one remote ixgbe through MoonGen and measure the RX pps through testpmd in guest when do xdp_redirect_map from local ixgbe to tap. RX pps were increased from 3.05 Mpps to 4.00 Mpps (about 31% improvement). One possible concern for this is the implications for TCP (especially latency sensitive workload). Result[1] does not show obvious changes for most of the netperf test (RR, TX, and RX). And we do get some improvements for RX on some specific size. Guest RX: size/sessions/+thu%/+normalize% 64/ 1/ +2%/ +2% 64/ 2/ +2%/ -1% 64/ 4/ +1%/ +1% 64/ 8/ 0%/ 0% 256/ 1/ +6%/ -3% 256/ 2/ -3%/ +2% 256/ 4/ +11%/ +11% 256/ 8/ 0%/ 0% 512/ 1/ +4%/ 0% 512/ 2/ +2%/ +2% 512/ 4/ 0%/ -1% 512/ 8/ -8%/ -8% 1024/ 1/ -7%/ -17% 1024/ 2/ -8%/ -7% 1024/ 4/ +1%/ 0% 1024/ 8/ 0%/ 0% 2048/ 1/ +30%/ +14% 2048/ 2/ +46%/ +40% 2048/ 4/ 0%/ 0% 2048/ 8/ 0%/ 0% 4096/ 1/ +23%/ +22% 4096/ 2/ +26%/ +23% 4096/ 4/ 0%/ +1% 4096/ 8/ 0%/ 0% 16384/ 1/ -2%/ -3% 16384/ 2/ +1%/ -4% 16384/ 4/ -1%/ -3% 16384/ 8/ 0%/ -1% 65535/ 1/ +15%/ +7% 65535/ 2/ +4%/ +7% 65535/ 4/ 0%/ +1% 65535/ 8/ 0%/ 0% TCP_RR: size/sessions/+thu%/+normalize% 1/ 1/ 0%/ +1% 1/ 25/ +2%/ +1% 1/ 50/ +4%/ +1% 64/ 1/ 0%/ -4% 64/ 25/ +2%/ +1% 64/ 50/ 0%/ -1% 256/ 1/ 0%/ 0% 256/ 25/ 0%/ 0% 256/ 50/ +4%/ +2% Guest TX: size/sessions/+thu%/+normalize% 64/ 1/ +4%/ -2% 64/ 2/ -6%/ -5% 64/ 4/ +3%/ +6% 64/ 8/ 0%/ +3% 256/ 1/ +15%/ +16% 256/ 2/ +11%/ +12% 256/ 4/ +1%/ 0% 256/ 8/ +5%/ +5% 512/ 1/ -1%/ -6% 512/ 2/ 0%/ -8% 512/ 4/ -2%/ +4% 512/ 8/ +6%/ +9% 1024/ 1/ +3%/ +1% 1024/ 2/ +3%/ +9% 1024/ 4/ 0%/ +7% 1024/ 8/ 0%/ +7% 2048/ 1/ +8%/ +2% 2048/ 2/ +3%/ -1% 2048/ 4/ -1%/ +11% 2048/ 8/ +3%/ +9% 4096/ 1/ +8%/ +8% 4096/ 2/ 0%/ -7% 4096/ 4/ +4%/ +4% 4096/ 8/ +2%/ +5% 16384/ 1/ -3%/ +1% 16384/ 2/ -1%/ -12% 16384/ 4/ -1%/ +5% 16384/ 8/ 0%/ +1% 65535/ 1/ 0%/ -3% 65535/ 2/ +5%/ +16% 65535/ 4/ +1%/ +2% 65535/ 8/ +1%/ -1% Signed-off-by:Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
-
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxDavid S. Miller authored
mlx5-updates-2018-01-08 Four patches from Or that add Hairpin support to mlx5: =========================================================== From: Or Gerlitz <ogerlitz@mellanox.com> We refer the ability of NIC HW to fwd packet received on one port to the other port (also from a port to itself) as hairpin. The application API is based on ingress tc/flower rules set on the NIC with the mirred redirect action. Other actions can apply to packets during the redirect. Hairpin allows to offload the data-path of various SW DDoS gateways, load-balancers, etc to HW. Packets go through all the required processing in HW (header re-write, encap/decap, push/pop vlan) and then forwarded, CPU stays at practically zero usage. HW Flow counters are used by the control plane for monitoring and accounting. Hairpin is implemented by pairing a receive queue (RQ) to send queue (SQ). All the flows that share <recv NIC, mirred NIC> are redirected through the same hairpin pair. Currently, only header-rewrite is supported as a packet modification action. I'd like to thanks Elijah Shakkour <elijahs@mellanox.com> for implementing this functionality on HW simulator, before it was avail in the FW so the driver code could be tested early. =========================================================== From Feras three patches that provide very small changes that allow IPoIB to support RX timestamping for child interfaces, simply by hooking the mlx5e timestamping PTP ioctl to IPoIB child interface netdev profile. One patch from Gal to fix a spilling mistake. Two patches from Eugenia adds drop counters to VF statistics to be reported as part of VF statistics in netlink (iproute2) and implemented them in mlx5 eswitch. Signed-off-by: -
David S. Miller authored
Peng Li says: ==================== code improvements in HNS3 driver This patchset fixes 2 comments for community review. [patch 1/2] reverts "net: hns3: Add packet statistics of netdev" reported by Jakub Kicinski and David Miller. [patch 2/2] reports the function type the same line with hns3_nic_get_stats64, reported by Andrew Lunn. ==================== Signed-off-by:
-
