From f1c2ef40c6436f8fa287ff1be2c75c4932180b1f Mon Sep 17 00:00:00 2001 From: Bert Kenward Date: Fri, 11 Dec 2015 09:39:32 +0000 Subject: [PATCH] sfc: only use RSS filters if we're using RSS Without this, filter insertion on a VF would fail if only one channel was in use. This would include the unicast station filter and therefore no traffic would be received. Signed-off-by: Bert Kenward Signed-off-by: David S. Miller --- drivers/net/ethernet/sfc/ef10.c | 24 ++++++++++++------------ drivers/net/ethernet/sfc/efx.h | 5 +++++ drivers/net/ethernet/sfc/farch.c | 2 +- 3 files changed, 18 insertions(+), 13 deletions(-) diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c index bc6d21b471be..e6a084a6be12 100644 --- a/drivers/net/ethernet/sfc/ef10.c +++ b/drivers/net/ethernet/sfc/ef10.c @@ -3299,7 +3299,8 @@ static int efx_ef10_filter_remove_internal(struct efx_nic *efx, new_spec.priority = EFX_FILTER_PRI_AUTO; new_spec.flags = (EFX_FILTER_FLAG_RX | - EFX_FILTER_FLAG_RX_RSS); + (efx_rss_enabled(efx) ? + EFX_FILTER_FLAG_RX_RSS : 0)); new_spec.dmaq_id = 0; new_spec.rss_context = EFX_FILTER_RSS_CONTEXT_DEFAULT; rc = efx_ef10_filter_push(efx, &new_spec, @@ -3921,6 +3922,7 @@ static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx, { struct efx_ef10_filter_table *table = efx->filter_state; struct efx_ef10_dev_addr *addr_list; + enum efx_filter_flags filter_flags; struct efx_filter_spec spec; u8 baddr[ETH_ALEN]; unsigned int i, j; @@ -3935,11 +3937,11 @@ static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx, addr_count = table->dev_uc_count; } + filter_flags = efx_rss_enabled(efx) ? EFX_FILTER_FLAG_RX_RSS : 0; + /* Insert/renew filters */ for (i = 0; i < addr_count; i++) { - efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, - EFX_FILTER_FLAG_RX_RSS, - 0); + efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, filter_flags, 0); efx_filter_set_eth_local(&spec, EFX_FILTER_VID_UNSPEC, addr_list[i].addr); rc = efx_ef10_filter_insert(efx, &spec, true); @@ -3968,9 +3970,7 @@ static int efx_ef10_filter_insert_addr_list(struct efx_nic *efx, if (multicast && rollback) { /* Also need an Ethernet broadcast filter */ - efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, - EFX_FILTER_FLAG_RX_RSS, - 0); + efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, filter_flags, 0); eth_broadcast_addr(baddr); efx_filter_set_eth_local(&spec, EFX_FILTER_VID_UNSPEC, baddr); rc = efx_ef10_filter_insert(efx, &spec, true); @@ -4000,13 +4000,14 @@ static int efx_ef10_filter_insert_def(struct efx_nic *efx, bool multicast, { struct efx_ef10_filter_table *table = efx->filter_state; struct efx_ef10_nic_data *nic_data = efx->nic_data; + enum efx_filter_flags filter_flags; struct efx_filter_spec spec; u8 baddr[ETH_ALEN]; int rc; - efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, - EFX_FILTER_FLAG_RX_RSS, - 0); + filter_flags = efx_rss_enabled(efx) ? EFX_FILTER_FLAG_RX_RSS : 0; + + efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, filter_flags, 0); if (multicast) efx_filter_set_mc_def(&spec); @@ -4023,8 +4024,7 @@ static int efx_ef10_filter_insert_def(struct efx_nic *efx, bool multicast, if (!nic_data->workaround_26807) { /* Also need an Ethernet broadcast filter */ efx_filter_init_rx(&spec, EFX_FILTER_PRI_AUTO, - EFX_FILTER_FLAG_RX_RSS, - 0); + filter_flags, 0); eth_broadcast_addr(baddr); efx_filter_set_eth_local(&spec, EFX_FILTER_VID_UNSPEC, baddr); diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h index 1aaf76c1ace8..10827476bc0b 100644 --- a/drivers/net/ethernet/sfc/efx.h +++ b/drivers/net/ethernet/sfc/efx.h @@ -76,6 +76,11 @@ void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue); #define EFX_TXQ_MAX_ENT(efx) (EFX_WORKAROUND_35388(efx) ? \ EFX_MAX_DMAQ_SIZE / 2 : EFX_MAX_DMAQ_SIZE) +static inline bool efx_rss_enabled(struct efx_nic *efx) +{ + return efx->rss_spread > 1; +} + /* Filters */ void efx_mac_reconfigure(struct efx_nic *efx); diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c index 5a1c5a8f278a..133e9e35be9e 100644 --- a/drivers/net/ethernet/sfc/farch.c +++ b/drivers/net/ethernet/sfc/farch.c @@ -2242,7 +2242,7 @@ efx_farch_filter_init_rx_auto(struct efx_nic *efx, */ spec->priority = EFX_FILTER_PRI_AUTO; spec->flags = (EFX_FILTER_FLAG_RX | - (efx->n_rx_channels > 1 ? EFX_FILTER_FLAG_RX_RSS : 0) | + (efx_rss_enabled(efx) ? EFX_FILTER_FLAG_RX_RSS : 0) | (efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0)); spec->dmaq_id = 0; } -- GitLab