linux_dsm_epyc7002/drivers/net
Alex Ng 0ab09befdb hv_netvsc: fix send buffer failure on MTU change
If MTU is changed the host would reject the send buffer change.
This problem is result of recent change to allow changing send
buffer size.

Every time we change the MTU, we store the previous net_device section
count before destroying the buffer, but we don’t store the previous
section size. When we reinitialize the buffer, its size is calculated
by multiplying the previous count and previous size. Since we
continuously increase the MTU, the host returns us a decreasing count
value while the section size is reinitialized to 1728 bytes every
time.

This eventually leads to a condition where the calculated buf_size is
so small that the host rejects it.

Fixes: 8b5327975a ("netvsc: allow controlling send/recv buffer size")
Signed-off-by: Alex Ng <alexng@microsoft.com>
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2017-09-21 15:17:16 -07:00
..
appletalk
arcnet
bonding net: bonding: fix tlb_dynamic_lb default value 2017-09-12 20:58:12 -07:00
caif
can can: constify platform_device_id 2017-08-13 20:12:23 -07:00
cris
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-09-05 20:03:35 -07:00
ethernet net: hns3: Fix for pri to tc mapping in TM 2017-09-20 16:15:40 -07:00
fddi net: defxx: constify eisa_device_id 2017-08-19 17:13:41 -07:00
fjes
hamradio
hippi
hyperv hv_netvsc: fix send buffer failure on MTU change 2017-09-21 15:17:16 -07:00
ieee802154 ieee802154: ca8210: Fix a potential NULL pointer dereference 2017-08-20 20:51:30 +02:00
ipvlan Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next 2017-09-03 17:08:42 -07:00
phy net: phy: Kconfig: Fix PHY infrastructure menu in menuconfig 2017-09-19 13:46:43 -07:00
plip
ppp ppp: fix xmit recursion detection on ppp channels 2017-08-08 21:06:11 -07:00
slip
team
usb smsc95xx: Configure pause time to 0xffff when tx flow control enabled 2017-09-12 20:36:30 -07:00
vmxnet3
wan - For the randstruct plugin, enable automatic randomization of structures 2017-09-07 20:30:19 -07:00
wimax
wireless wireless-drivers fixes for 4.14 2017-09-08 10:09:57 -07:00
xen-netback xen-netback: update ubuf_info initialization to anonymous union 2017-08-28 15:11:50 -07:00
dummy.c
eql.c
geneve.c geneve: use netlink_ext_ack for error reporting in rtnl operations 2017-08-11 13:45:02 -07:00
gtp.c
ifb.c
Kconfig x86/lguest: Remove lguest support 2017-08-24 09:57:28 +02:00
LICENSE.SRC
loopback.c
macsec.c macsec: add genl family module alias 2017-08-22 14:25:50 -07:00
macvlan.c macvlan: add offload features for encapsulation 2017-08-18 16:06:54 -07:00
macvtap.c
Makefile irda: move drivers/net/irda to drivers/staging/irda/drivers 2017-08-28 16:42:57 -07:00
mdio.c
mii.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tap.c tun/tap: use paren's with sizeof 2017-08-16 11:01:57 -07:00
tun.c tun: rename generic_xdp to skb_xdp 2017-09-05 14:26:41 -07:00
veth.c
virtio_net.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2017-09-01 17:42:05 -07:00
vrf.c net: vrf: avoid gcc-4.6 warning 2017-09-15 14:22:21 -07:00
vsockmon.c
vxlan.c vxlan: factor out VXLAN-GPE next protocol 2017-08-29 15:16:52 -07:00
xen-netfront.c xen-netfront: be more drop monitor friendly 2017-08-30 15:56:16 -07:00