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93fb2776f4
Tushar Vyavahare says: ==================== Implement a test for the SHARED_UMEM feature in this patch set and make necessary changes/improvements. Ensure that the framework now supports different streams for different sockets. v2->v3: - Set the sock_num at the end of the while loop. - Declare xsk at the top of the while loop. v1->v2: - Remove generate_mac_addresses() and generate mac addresses based on the number of sockets in __test_spec_init() function. [Magnus] - Update Makefile to include find_bit.c for compiling xskxceiver. - Add bitmap_full() function to verify all bits are set to break the while loop in the receive_pkts() and send_pkts() functions. - Replace __test_and_set_bit() function with __set_bit() function. - Add single return check for wait_for_tx_completion() function call. Patch series summary: 1: Move the packet stream from the ifobject struct to the xsk_socket_info struct to enable the use of different streams for different sockets This will facilitate the sending and receiving of data from multiple sockets simultaneously using the SHARED_XDP_UMEM feature. It gives flexibility of send/recive individual traffic on particular socket. 2: Rename the header file to a generic name so that it can be used by all future XDP programs. 3: Move the src_mac and dst_mac fields from the ifobject structure to the xsk_socket_info structure to achieve per-socket MAC address assignment. Require this in order to steer traffic to various sockets in subsequent patches. 4: Improve the receive_pkt() function to enable it to receive packets from multiple sockets. Define a sock_num variable to iterate through all the sockets in the Rx path. Add nb_valid_entries to check that all the expected number of packets are received. 5: The pkt_set() function no longer needs the umem parameter. This commit removes the umem parameter from the pkt_set() function. 6: Iterate over all the sockets in the send pkts function. Update send_pkts() to handle multiple sockets for sending packets. Multiple TX sockets are utilized alternately based on the batch size for improve packet transmission. 7: Modify xsk_update_xskmap() to accept the index as an argument, enabling the addition of multiple sockets to xskmap. 8: Add a new test for testing shared umem feature. This is accomplished by adding a new XDP program and using the multiple sockets. The new XDP program redirects the packets based on the destination MAC address. ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.