** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Bionic)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Bionic)
Status: New => In Progress
** Changed in: linux (Ubuntu)
Status: New => Fix Released
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https://bugs.launchpad.net/bugs/1859756
Title:
[hns3-0115] add 8 BD limit for tx flow
Status in kunpeng920:
In Progress
Status in kunpeng920 ubuntu-18.04 series:
In Progress
Status in kunpeng920 ubuntu-18.04-hwe series:
Fix Released
Status in kunpeng920 ubuntu-20.04 series:
Fix Released
Status in kunpeng920 upstream-kernel series:
Fix Released
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Bionic:
In Progress
Bug description:
[Bug Description]
A single transmit packet can span up to 8 descriptors,
TSO transmit packet can be stored up to 63 descriptors
and each segment within the TSO should be spanned up to
8 descriptors.
If the packet needs more than 8 BD, and the total size of
every 7 continuous frags more than MSS, HW does not support
it, and it need driver makes SKB Linearized.
[Actual Results]
iscsi and bigdata spark test OK
[Expected Results]
iscsi and bigdata spark test OK
[Reproducibility]
Inevitably
[Additional information]
Hardware: D06
Firmware: NA
Kernel: NA
DTS2018091810050
[Resolution]
SW use skb_copy to merge frag;
51e8439f3496 net: hns3: add 8 BD limit for tx flow
5f543a54eec0 net: hns3: fix for not calculating tx bd num correctly
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