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s390/qeth: add SW timestamping support for IQD devices
authorJulian Wiedmann <jwi@linux.ibm.com>
Wed, 18 Mar 2020 12:54:51 +0000 (13:54 +0100)
committerDavid S. Miller <davem@davemloft.net>
Wed, 18 Mar 2020 23:33:35 +0000 (16:33 -0700)
commit8d145da294a9371c050994bbe6fef98c91e3c072
tree18d9a5c34c7161e893e18251d2dd15ed57932222tree
parent5d8ce41c6a878afac157a61299a9f810bf80995ecommit | diff
s390/qeth: add SW timestamping support for IQD devices

This adds support for SOF_TIMESTAMPING_TX_SOFTWARE.
No support for non-IQD devices, since they orphan the skb in their xmit
path.

To play nice with TX bulking, set the timestamp when the buffer that
contains the skb(s) is actually flushed out to HW.

Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/s390/net/qeth_core_main.c diff | blob | history
drivers/s390/net/qeth_ethtool.c diff | blob | history
XArray, radix tree and IDR