linux_dsm_epyc7002/drivers/net/ethernet/sfc
Eric Dumazet a4f570be65 sfc-falcon: remove ndo_poll_controller
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC). This capture
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

sfc-falcon uses NAPI for TX completions, so we better let core
networking stack call the napi->poll() to avoid the capture.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com>
Cc: Edward Cree <ecree@solarflare.com>
Cc: Bert Kenward <bkenward@solarflare.com>
Acked-By: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-28 11:12:29 -07:00
..
falcon sfc-falcon: remove ndo_poll_controller 2018-09-28 11:12:29 -07:00
bitfield.h
ef10_regs.h sfc: update EF10 register definitions 2017-12-18 13:07:50 -05:00
ef10_sriov.c sfc: remove redundant variable old_vlan 2018-07-04 22:39:11 +09:00
ef10_sriov.h
ef10.c sfc: avoid hang from nested use of the filter_sem 2018-07-12 14:52:04 -07:00
efx.c sfc: remove ndo_poll_controller 2018-09-28 11:12:29 -07:00
efx.h sfc: ARFS filter IDs 2018-04-24 13:48:22 -04:00
enum.h
ethtool.c sfc: fix flow type handling for RSS filters 2018-03-27 13:33:20 -04:00
farch_regs.h
farch.c sfc: correctly initialise filter rwsem for farch 2018-06-30 21:13:37 +09:00
filter.h sfc: support RSS spreading of ethtool ntuple filters 2018-03-08 21:54:52 -05:00
io.h sfc: support VI strides other than 8k 2017-12-18 13:07:49 -05:00
Kconfig
Makefile net: ethernet: sfc: Make subdir logic consistent with other vendors 2018-07-05 20:05:54 +09:00
mcdi_mon.c ethernet: Use octal not symbolic permissions 2018-03-26 12:07:49 -04:00
mcdi_pcol.h sfc: update MCDI protocol headers 2018-03-14 13:12:14 -04:00
mcdi_port.c sfc: support FEC configuration through ethtool 2018-03-14 13:12:15 -04:00
mcdi.c jiffies: Introduce USER_TICK_USEC and redefine TICK_USEC 2018-04-06 09:28:50 +02:00
mcdi.h sfc: support VI strides other than 8k 2017-12-18 13:07:49 -05:00
mtd.c mtd: Stop updating erase_info->state and calling mtd_erase_callback() 2018-03-21 09:50:56 +01:00
net_driver.h sfc: batch up RX delivery 2018-07-04 14:06:19 +09:00
nic.c
nic.h sfc: remove ctpio_dmabuf_start from stats 2018-04-04 12:07:22 -04:00
ptp.c sfc: mark some unexported symbols as static 2018-01-28 21:59:18 -05:00
rx.c sfc: batch up RX delivery 2018-07-04 14:06:19 +09:00
selftest.c networking: make skb_put & friends return void pointers 2017-06-16 11:48:39 -04:00
selftest.h
siena_sriov.c
siena_sriov.h
siena.c sfc: replace asynchronous filter operations 2018-03-27 13:33:19 -04:00
sriov.c
sriov.h
tx_tso.c
tx.c sfc: stop the TX queue before pushing new buffers 2018-05-25 14:49:37 -04:00
tx.h
vfdi.h
workarounds.h sfc: tx ring can only have 2048 entries for all EF10 NICs 2017-04-25 11:19:21 -04:00