AuxXxilium/linux_dsm_epyc7002
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ca7609ff36
linux_dsm_epyc7002/drivers/net/ethernet/mellanox/mlxsw
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Petr Machata ca7609ff36 mlxsw: spectrum: Wipe xstats.backlog of down ports 
Per-port counter cache used by Qdiscs is updated periodically, unless the
port is down. The fact that the cache is not updated for down ports is no
problem for most counters, which are relative in nature. However, backlog
is absolute in nature, and if there is a non-zero value in the cache around
the time that the port goes down, that value just stays there. This value
then leaks to offloaded Qdiscs that report non-zero backlog even if
there (obviously) is no traffic.

The HW does not keep backlog of a downed port, so do likewise: as the port
goes down, wipe the backlog value from xstats.

Fixes: 075ab8adaf ("mlxsw: spectrum: Collect tclass related stats periodically")
Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-01-15 04:16:30 -08:00
..
cmd.h mlxsw: cmd: Free running clock PCI BAR and offsets via query firmware 2019-06-13 22:34:55 -07:00
core_acl_flex_actions.c
core_acl_flex_actions.h
core_acl_flex_keys.c mlxsw: spectrum_acl: Avoid size check for RX_ACL_SYSTEM_PORT element 2019-06-19 10:09:22 -04:00
core_acl_flex_keys.h mlxsw: spectrum_acl: Fix SRC_SYS_PORT element size 2019-06-19 10:09:22 -04:00
core_env.c mlxsw: core: Extend QSFP EEPROM size for ethtool 2019-10-22 10:30:41 -07:00
core_env.h mlxsw: core: Move ethtool module callbacks to a common location 2019-03-03 22:23:00 -08:00
core_hwmon.c mlxsw: hwmon: Provide optimization for QSFP modules number detection 2019-10-06 18:31:39 +02:00
core_thermal.c mlxsw: thermal: Provide optimization for QSFP modules number detection 2019-10-06 18:31:39 +02:00
core.c mlxsw: core: Add support for using EMAD string TLV 2019-11-12 10:54:02 -08:00
core.h mlxsw: core: Add support for using EMAD string TLV 2019-11-12 10:54:02 -08:00
emad.h mlxsw: core: Add EMAD string TLV 2019-11-12 10:54:02 -08:00
i2c.c mlxsw: Propagate extack down to register_fib_notifier() 2019-10-04 11:10:56 -07:00
i2c.h
ib.h
item.h
Kconfig mlxsw: spectrum: Extend to support Spectrum-3 ASIC 2019-08-08 22:27:09 -07:00
Makefile mlxsw: spectrum: Add devlink-trap support 2019-08-21 12:58:39 -07:00
minimal.c mlxsw: minimal: Add validation for FW version 2019-10-06 18:31:39 +02:00
pci_hw.h mlxsw: pci: Increase PCI reset timeout for SN3800 systems 2019-10-30 12:07:05 -07:00
pci.c mlxsw: Propagate extack down to register_fib_notifier() 2019-10-04 11:10:56 -07:00
pci.h mlxsw: spectrum: Extend to support Spectrum-3 ASIC 2019-08-08 22:27:09 -07:00
port.h mlxsw: spectrum: Use PMTM register to get max module width 2019-10-31 10:54:46 -07:00
reg.h mlxsw: spectrum: Use dedicated policer for VRRP packets 2019-12-29 12:29:13 -08:00
resources.h mlxsw: spectrum: Introduce resource for getting offset of 4 lanes split port 2019-10-31 10:54:47 -07:00
spectrum1_acl_tcam.c mlxsw: spectrum_acl: Pass hints priv all the way to ERP code 2019-02-08 15:02:50 -08:00
spectrum1_kvdl.c
spectrum1_mr_tcam.c
spectrum2_acl_tcam.c mlxsw: spectrum_acl: Pass hints priv all the way to ERP code 2019-02-08 15:02:50 -08:00
spectrum2_kvdl.c
spectrum2_mr_tcam.c
spectrum_acl_atcam.c mlxsw: spectrum_acl: Pass hints priv all the way to ERP code 2019-02-08 15:02:50 -08:00
spectrum_acl_bloom_filter.c mlxsw: spectrum_acl: Introduce mutex to guard Bloom Filter updates 2019-02-24 20:25:29 -08:00
spectrum_acl_ctcam.c
spectrum_acl_erp.c mlxsw: spectrum_acl: Avoid warning after identical rules insertion 2019-05-30 12:30:47 -07:00
spectrum_acl_flex_actions.c
spectrum_acl_flex_actions.h
spectrum_acl_flex_keys.c mlxsw: spectrum_acl: Fix SRC_SYS_PORT element size 2019-06-19 10:09:22 -04:00
spectrum_acl_tcam.c mlxsw: spectrum_acl: Rename rehash_dis trace 2019-03-31 11:01:23 -07:00
spectrum_acl_tcam.h mlxsw: spectrum_acl: Don't take rtnl lock during vregion_rehash_intrvl_set() 2019-02-24 20:25:29 -08:00
spectrum_acl.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2019-08-19 11:54:03 -07:00
spectrum_buffers.c mlxsw: Fix 64-bit division in mlxsw_sp_sb_prs_init 2019-10-31 13:55:34 -07:00
spectrum_cnt.c
spectrum_cnt.h
spectrum_dcb.c mlxsw: spectrum_dcb: Configure DSCP map as the last rule is removed 2019-07-17 15:19:46 -07:00
spectrum_dpipe.c
spectrum_dpipe.h mlxsw: spectrum: Assume CONFIG_NET_DEVLINK is always enabled 2019-04-19 15:03:55 -07:00
spectrum_fid.c mlxsw: spectrum: Do not process learned records with a dummy FID 2019-07-17 15:19:46 -07:00
spectrum_flower.c mlxsw: spectrum_flower: Fail in case user specifies multiple mirror actions 2019-09-27 20:33:19 +02:00
spectrum_ipip.c
spectrum_ipip.h
spectrum_kvdl.c
spectrum_mr_tcam.c
spectrum_mr_tcam.h
spectrum_mr.c
spectrum_mr.h
spectrum_nve_vxlan.c mlxsw: spectrum_ptp: Increase parsing depth when PTP is enabled 2019-07-29 13:55:05 -07:00
spectrum_nve.c mlxsw: spectrum: Take devlink net instead of init_net 2019-10-04 11:10:56 -07:00
spectrum_nve.h mlxsw: spectrum_ptp: Increase parsing depth when PTP is enabled 2019-07-29 13:55:05 -07:00
spectrum_ptp.c mlxsw: spectrum_ptp: Add counters for GC events 2019-08-28 18:24:04 -07:00
spectrum_ptp.h mlxsw: spectrum_ptp: Add counters for GC events 2019-08-28 18:24:04 -07:00
spectrum_qdisc.c mlxsw: spectrum_qdisc: Ignore grafting of invisible FIFO 2020-01-08 12:45:52 -08:00
spectrum_router.c mlxsw: spectrum_router: Skip loopback RIFs during MAC validation 2019-12-29 12:29:13 -08:00
spectrum_router.h
spectrum_span.c mlxsw: spectrum: Register switched port analyzers (SPAN) as resource 2019-10-18 10:05:37 -07:00
spectrum_span.h
spectrum_switchdev.c mlxsw: spectrum: Take devlink net instead of init_net 2019-10-04 11:10:56 -07:00
spectrum_switchdev.h
spectrum_trap.c mlxsw: Add layer 3 devlink-trap exceptions support 2019-11-07 19:51:40 -08:00
spectrum.c mlxsw: spectrum: Wipe xstats.backlog of down ports 2020-01-15 04:16:30 -08:00
spectrum.h mlxsw: spectrum: Use port_module_max_width to compute base port index 2019-10-31 10:54:47 -07:00
switchib.c mlxsw: Propagate extack down to register_fib_notifier() 2019-10-04 11:10:56 -07:00
switchx2.c mlxsw: switchx2: Do not modify cloned SKBs during xmit 2020-01-15 04:16:30 -08:00
trap.h mlxsw: Add layer 3 devlink-trap exceptions support 2019-11-07 19:51:40 -08:00
txheader.h