MAC anti-spoof is disabled by default to support VRRP advertisement packets from a vsi of ice PF. There is no way to enable this security check in the Tx direction itself.
This patch introduces devargs "mac-anti-spoof" to allow user to enable MAC anti-spoof check. Enable MAC Anti-spoof check in the Tx direction to automatically drop outgoing packets as TX-errors when their destination MAC address matches one of the MAC addresses assigned to that same NIC port. Signed-off-by: Anurag Mandal <[email protected]> --- V3: Addressed Morten Brørup's feedback - set the default value of the devargs to 0 - disabled MAC anti-spoof check by default - provided devargs option to enable the same - synchronized with source prune V2: Addressed Bruce Richardson's feedback - changed devargs name to "mac-anti-spoof" - changed devargs member name to "mac_anti_spoof" - changed macro name to "ICE_MAC_ANTI_SPOOF_ARG" - set the default value of the devargs to 1 - added NOTICE log msg when MAC Anti-spoof is disabled - added more code comments to provide clarity - fixed typo error with ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF doc/guides/nics/ice.rst | 11 +++++++++ drivers/net/intel/ice/ice_ethdev.c | 38 ++++++++++++++++++++++++++++-- drivers/net/intel/ice/ice_ethdev.h | 1 + 3 files changed, 48 insertions(+), 2 deletions(-) diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst index 6cc27cefa7..ee8d443c97 100644 --- a/doc/guides/nics/ice.rst +++ b/doc/guides/nics/ice.rst @@ -194,6 +194,17 @@ Runtime Configuration -a 80:00.0,source-prune=1 +- ``MAC Anti-spoof Enable`` (default ``0``) + + Enable MAC Anti-spoof check in the Tx direction to drop outgoing + packets when their destination MAC address matches one of the + MAC addresses assigned to that same NIC port. + + MAC Anti-spoof can be enabled by setting the devargs parameter ``mac-anti-spoof``, + for example:: + + -a 80:00.0,mac-anti-spoof=1 + - ``Protocol extraction for per queue`` Configure the RX queues to do protocol extraction into mbuf for protocol diff --git a/drivers/net/intel/ice/ice_ethdev.c b/drivers/net/intel/ice/ice_ethdev.c index c1d92435d1..fbecd00d35 100644 --- a/drivers/net/intel/ice/ice_ethdev.c +++ b/drivers/net/intel/ice/ice_ethdev.c @@ -42,6 +42,7 @@ #define ICE_DDP_LOAD_SCHED_ARG "ddp_load_sched_topo" #define ICE_TM_LEVELS_ARG "tm_sched_levels" #define ICE_SOURCE_PRUNE_ARG "source-prune" +#define ICE_MAC_ANTI_SPOOF_ARG "mac-anti-spoof" #define ICE_LINK_STATE_ON_CLOSE "link_state_on_close" #define ICE_CYCLECOUNTER_MASK 0xffffffffffffffffULL @@ -60,6 +61,7 @@ static const char * const ice_valid_args[] = { ICE_DDP_LOAD_SCHED_ARG, ICE_TM_LEVELS_ARG, ICE_SOURCE_PRUNE_ARG, + ICE_MAC_ANTI_SPOOF_ARG, ICE_LINK_STATE_ON_CLOSE, NULL }; @@ -1761,13 +1763,39 @@ ice_setup_vsi(struct ice_pf *pf, enum ice_vsi_type type) /* Source Prune */ if (ad->devargs.source_prune != 1) { /* Disable source prune to support VRRP - * when source-prune devarg is not set + * when source-prune devargs is not set */ vsi_ctx.info.sw_flags = ICE_AQ_VSI_SW_FLAG_LOCAL_LB; - vsi_ctx.info.sw_flags |= + } else { /* Enable Source Prune in Rx */ + vsi_ctx.info.sw_flags = ICE_AQ_VSI_SW_FLAG_SRC_PRUNE; } + /* MAC Anti-spoof */ + /* By default, Source Prune in Rx and + * MAC Anti-spoof check in Tx are disabled. + * + * Source Prune is disabled by setting local + * loopback with ICE_AQ_VSI_SW_FLAG_LOCAL_LB + * flag in the Rx direction. + * + * MAC Anti-spoof check can be disabled by + * setting Tx loopback with + * ICE_AQ_VSI_SW_FLAG_ALLOW_LB flag in the + * Tx direction. + */ + if (ad->devargs.mac_anti_spoof != 1) { + /* Disable mac anti-spoof check in the + * Tx direction to avoid getting dropped + * as TX-errors for VRRP support when + * mac-anti-spoof devargs is not set + */ + vsi_ctx.info.sw_flags |= + ICE_AQ_VSI_SW_FLAG_ALLOW_LB; + } else { /* Enable MAC Anti-spoof check in Tx */ + vsi_ctx.info.sec_flags = + ICE_AQ_VSI_SEC_FLAG_ENA_MAC_ANTI_SPOOF; + } cfg = ICE_AQ_VSI_PROP_SW_VALID; vsi_ctx.info.valid_sections |= rte_cpu_to_le_16(cfg); vsi_ctx.info.sw_flags2 = ICE_AQ_VSI_SW_FLAG_LAN_ENA; @@ -2467,6 +2495,11 @@ static int ice_parse_devargs(struct rte_eth_dev *dev) if (ret) goto bail; + ret = rte_kvargs_process(kvlist, ICE_MAC_ANTI_SPOOF_ARG, + &parse_bool, &ad->devargs.mac_anti_spoof); + if (ret) + goto bail; + ret = rte_kvargs_process(kvlist, ICE_LINK_STATE_ON_CLOSE, &parse_link_state_on_close, &ad->devargs.link_state_on_close); @@ -7732,6 +7765,7 @@ RTE_PMD_REGISTER_PARAM_STRING(net_ice, ICE_DDP_LOAD_SCHED_ARG "=<0|1>" ICE_TM_LEVELS_ARG "=<N>" ICE_SOURCE_PRUNE_ARG "=<0|1>" + ICE_MAC_ANTI_SPOOF_ARG "=<0|1>" ICE_RX_LOW_LATENCY_ARG "=<0|1>" ICE_LINK_STATE_ON_CLOSE "=<down|up|initial>"); diff --git a/drivers/net/intel/ice/ice_ethdev.h b/drivers/net/intel/ice/ice_ethdev.h index 72ed65f13b..5fe4688d57 100644 --- a/drivers/net/intel/ice/ice_ethdev.h +++ b/drivers/net/intel/ice/ice_ethdev.h @@ -617,6 +617,7 @@ struct ice_devargs { uint8_t ddp_load_sched; uint8_t tm_exposed_levels; uint8_t source_prune; + uint8_t mac_anti_spoof; int link_state_on_close; int xtr_field_offs; uint8_t xtr_flag_offs[PROTO_XTR_MAX]; -- 2.34.1
