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https://bugs.launchpad.net/bugs/1814899
Title:
[19.04 FEAT] qeth: Performance Improvements
Status in Ubuntu on IBM z Systems:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Bug description:
Function:
Improved performance for OSA and Hipersockets via general code improvements
and and exploitation of further kernel infrastructure.
Business Case:
Improved network performance for Linux on Z
Available with kernel 4.19:
Git-Commit:
s390/qeth: various buffer management cleanups [3b346c1814]
s390/qeth: remove unused buffer->aob pointer [f67a43a73b]
s390/qeth: fine-tune RX modesetting [9aa17df3b8]
s390/qeth: clean up Output Queue selection [86c0cdb9e0]
s390/qeth: consolidate ccwgroup driver definition [6d8769abe4]
s390/qeth: clean up exported symbols [09960b3a0a]
s390/qeth: increase GSO max size for eligible L3 devices [371a1e7a07]
s390/qeth: add a L3 xmit wrapper [ea1d4a0c7f]
s390/qeth: speed-up L3 IQD xmit [a647a02512]
s390/qeth: speed-up IPv4 OSA xmit [fb321f25e5]
s390/qeth: fix race in used-buffer accounting [a702349a40]
s390/qeth: reset layer2 attribute on layer switch [70551dc46f]
s390/qeth: remove redundant netif_carrier_ok() checks [addc5ee872]
s390/qeth: allocate netdevice early [d3d1b205e8]
s390/qeth: don't cache HW port number [92d2720969]
s390/qeth: simplify max MTU handling [8ce7a9e064]
s390/qeth: use core MTU range checking [72f219da79]
s390/qeth: add statistics for consumed buffer elements [d2a274b25b]
s390/qeth: merge linearize-check into HW header construction
[ba86ceee9d]
s390/qeth: add support for constrained HW headers [a7c2f4a332]
s390/qeth: speed up L2 IQD xmit [5f89eca577]
s390/qeth: extract helper for MPC protocol type [73657a3e5b]
s390/qeth: reduce hard-coded access to ccw channels [750b162598]
s390/qeth: use qeth_setup_ccw() to set up all CCWs [45ca2fd646]
s390/qeth: do basic setup for data channel [24142fd8d8]
s390/qeth: clean up card initialization [95f4d8b75a]
s390/qeth: don't restrict qeth_card to DMA memory [f15cdaf237]
s390/qeth: switch on SG by default for IQD devices [04db741d0d]
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