linux-stable/drivers/s390
Julian Wiedmann 4d19db777a s390/qeth: invoke softirqs after napi_schedule()
Calling napi_schedule() from process context does not ensure that the
NET_RX softirq is run in a timely fashion. So trigger it manually.

This is no big issue with current code. A call to ndo_open() is usually
followed by a ndo_set_rx_mode() call, and for qeth this contains a
spin_unlock_bh(). Except for OSN, where qeth_l2_set_rx_mode() bails out
early.
Nevertheless it's best to not depend on this behaviour, and just fix
the issue at its source like all other drivers do. For instance see
commit 83a0c6e589 ("i40e: Invoke softirqs after napi_reschedule").

Fixes: a1c3ed4c9c ("qeth: NAPI support for l2 and l3 discipline")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-17 09:10:25 -07:00
..
block libnvdimm-for-4.19_misc 2018-08-25 18:13:10 -07:00
char TTY/Serial driver patches for 4.19-rc1 2018-08-18 10:50:41 -07:00
cio s390 cio: Rewrite trace point class s390_class_schib 2018-07-23 13:49:56 +02:00
crypto s390/zcrypt: hex string mask improvements for apmask and aqmask. 2018-08-21 15:56:45 +02:00
net s390/qeth: invoke softirqs after napi_schedule() 2018-09-17 09:10:25 -07:00
scsi s390/dasd,zfcp: fix gcc 8 stringop-truncation warnings 2018-07-02 11:24:52 +02:00
virtio virtio/s390: implement PM operations for virtio_ccw 2018-02-14 14:34:09 +02:00
Makefile kbuild: rename built-in.o to built-in.a 2018-03-26 02:01:19 +09:00