7b3722fa9e
Introduce a new flow table and indirect TIRs which are used to hash the inner packet headers of GRE tunneled packets. When a GRE tunneled packet is received, the TTC flow table will match the new IPv4/6->GRE rules which will forward it to the inner TTC table. The inner TTC is similar to its counterpart outer TTC table, but matching the inner packet headers instead of the outer ones (and does not include the new IPv4/6->GRE rules). The new rules will not add steering hops since they are added to an already existing flow group which will be matched regardless of this patch. Non GRE traffic will not be affected. The inner flow table will forward the packet to inner indirect TIRs which hash the inner packet and thus result in RSS for the tunneled packets. Testing 8 TCP streams bandwidth over GRE: System: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz NIC: Mellanox Technologies MT28800 Family [ConnectX-5 Ex] Before: 21.3 Gbps (Single RQ) Now : 90.5 Gbps (RSS spread on 8 RQs) Signed-off-by: Gal Pressman <galp@mellanox.com> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> |
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README
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.