diff options
| author | Ioana Ciornei <ioana.ciornei@nxp.com> | 2020-05-30 23:08:14 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-06-01 21:04:32 +0200 |
| commit | 07beb1651adcd324f4d91584d5cab75d5882a9c2 (patch) | |
| tree | b168b88e210385d7938f24e6f1bbef407fc60db3 /drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | |
| parent | dpaa2-eth: Add PFC support through DCB ops (diff) | |
| download | linux-07beb1651adcd324f4d91584d5cab75d5882a9c2.tar.xz linux-07beb1651adcd324f4d91584d5cab75d5882a9c2.zip | |
dpaa2-eth: Keep congestion group taildrop enabled when PFC on
Leave congestion group taildrop enabled for all traffic classes
when PFC is enabled. Notification threshold is low enough such
that it will be hit first and this also ensures that FQs on
traffic classes which are not PFC enabled won't drain the buffer
pool.
FQ taildrop threshold is kept disabled as long as any form of
flow control is on. Since FQ taildrop works with bytes, not number
of frames, we can't guarantee it will not interfere with the
congestion notification mechanism for all frame sizes.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h index 31b7b9b52da0..2d7ada0f0dbd 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h @@ -436,7 +436,8 @@ struct dpaa2_eth_priv { struct dpaa2_eth_drv_stats __percpu *percpu_extras; u16 mc_token; - u8 rx_td_enabled; + u8 rx_fqtd_enabled; + u8 rx_cgtd_enabled; struct dpni_link_state link_state; bool do_link_poll; @@ -448,6 +449,7 @@ struct dpaa2_eth_priv { struct dpaa2_eth_cls_rule *cls_rules; u8 rx_cls_enabled; u8 vlan_cls_enabled; + u8 pfc_enabled; #ifdef CONFIG_FSL_DPAA2_ETH_DCB u8 dcbx_mode; struct ieee_pfc pfc; @@ -584,6 +586,9 @@ int dpaa2_eth_cls_key_size(u64 key); int dpaa2_eth_cls_fld_off(int prot, int field); void dpaa2_eth_cls_trim_rule(void *key_mem, u64 fields); +void dpaa2_eth_set_rx_taildrop(struct dpaa2_eth_priv *priv, + bool tx_pause, bool pfc); + extern const struct dcbnl_rtnl_ops dpaa2_eth_dcbnl_ops; #endif /* __DPAA2_H */ |