From: Alexander Duyck Date: Sat, 14 Jul 2012 05:42:36 +0000 (+0000) Subject: ixgbe: Retire RSS enabled and capable flags X-Git-Tag: firefly_0821_release~3680^2~2381^2~89 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fbe7ca7f9bb60fdec91cce6b52dd0c6dbac641f7;p=firefly-linux-kernel-4.4.55.git ixgbe: Retire RSS enabled and capable flags All of our hardware supports RSS even if it is only for a single queue. So instead of toting around the RSS enable flag I am updating the code so that all devices are enabled and if we want to disable RSS it is indicated via the RSS mask. Signed-off-by: Alexander Duyck Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 67743aa7acef..4ca10e6da482 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -446,8 +446,6 @@ struct ixgbe_adapter { #define IXGBE_FLAG_IMIR_ENABLED (u32)(1 << 12) #define IXGBE_FLAG_MQ_CAPABLE (u32)(1 << 13) #define IXGBE_FLAG_DCB_ENABLED (u32)(1 << 14) -#define IXGBE_FLAG_RSS_ENABLED (u32)(1 << 16) -#define IXGBE_FLAG_RSS_CAPABLE (u32)(1 << 17) #define IXGBE_FLAG_VMDQ_CAPABLE (u32)(1 << 18) #define IXGBE_FLAG_VMDQ_ENABLED (u32)(1 << 19) #define IXGBE_FLAG_FAN_FAIL_CAPABLE (u32)(1 << 20) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index 8e1be50af70a..4104ea25d818 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -2245,10 +2245,6 @@ static int ixgbe_get_rss_hash_opts(struct ixgbe_adapter *adapter, { cmd->data = 0; - /* if RSS is disabled then report no hashing */ - if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) - return 0; - /* Report default options for RSS on ixgbe */ switch (cmd->flow_type) { case TCP_V4_FLOW: diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c index 676e93f344f3..38d1b65777ad 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c @@ -265,9 +265,6 @@ static bool ixgbe_cache_ring_rss(struct ixgbe_adapter *adapter) { int i; - if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) - return false; - for (i = 0; i < adapter->num_rx_queues; i++) adapter->rx_ring[i]->reg_idx = i; for (i = 0; i < adapter->num_tx_queues; i++) @@ -602,11 +599,6 @@ static bool ixgbe_set_rss_queues(struct ixgbe_adapter *adapter) struct ixgbe_ring_feature *f; u16 rss_i; - if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) { - adapter->flags &= ~IXGBE_FLAG_FDIR_HASH_CAPABLE; - return false; - } - /* set mask for 16 queue limit of RSS */ f = &adapter->ring_feature[RING_F_RSS]; rss_i = f->limit; @@ -1062,7 +1054,6 @@ static void ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter) } adapter->flags &= ~IXGBE_FLAG_DCB_ENABLED; - adapter->flags &= ~IXGBE_FLAG_RSS_ENABLED; if (adapter->flags & IXGBE_FLAG_FDIR_HASH_CAPABLE) { e_err(probe, "ATR is not supported while multiple " @@ -1073,6 +1064,7 @@ static void ixgbe_set_interrupt_capability(struct ixgbe_adapter *adapter) if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) ixgbe_disable_sriov(adapter); + adapter->ring_feature[RING_F_RSS].limit = 1; ixgbe_set_num_queues(adapter); adapter->num_q_vectors = 1; diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 454e556307f2..a3dc9657f572 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -2891,9 +2891,6 @@ static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) int i, j; u16 rss_i = adapter->ring_feature[RING_F_RSS].indices; - if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) - rss_i = 1; - /* * Program table for at least 2 queues w/ SR-IOV so that VFs can * make full use of any rings they may have. We will use the @@ -2923,7 +2920,7 @@ static void ixgbe_setup_mrqc(struct ixgbe_adapter *adapter) IXGBE_WRITE_REG(hw, IXGBE_RXCSUM, rxcsum); if (adapter->hw.mac.type == ixgbe_mac_82598EB) { - if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) + if (adapter->ring_feature[RING_F_RSS].mask) mrqc = IXGBE_MRQC_RSSEN; } else { u8 tcs = netdev_get_num_tc(adapter->netdev); @@ -3102,6 +3099,7 @@ void ixgbe_configure_rx_ring(struct ixgbe_adapter *adapter, static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) { struct ixgbe_hw *hw = &adapter->hw; + int rss_i = adapter->ring_feature[RING_F_RSS].indices; int p; /* PSRTYPE must be initialized in non 82598 adapters */ @@ -3114,13 +3112,10 @@ static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter) if (hw->mac.type == ixgbe_mac_82598EB) return; - if (adapter->flags & IXGBE_FLAG_RSS_ENABLED) { - int rss_i = adapter->ring_feature[RING_F_RSS].indices; - if (rss_i > 3) - psrtype |= 2 << 29; - else if (rss_i > 1) - psrtype |= 1 << 29; - } + if (rss_i > 3) + psrtype |= 2 << 29; + else if (rss_i > 1) + psrtype |= 1 << 29; for (p = 0; p < adapter->num_rx_pools; p++) IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(adapter->num_vfs + p), @@ -4408,7 +4403,6 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) /* Set capability flags */ rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus()); adapter->ring_feature[RING_F_RSS].limit = rss; - adapter->flags |= IXGBE_FLAG_RSS_ENABLED; switch (hw->mac.type) { case ixgbe_mac_82598EB: if (hw->device_id == IXGBE_DEV_ID_82598AT) @@ -6756,10 +6750,6 @@ static netdev_features_t ixgbe_fix_features(struct net_device *netdev, { struct ixgbe_adapter *adapter = netdev_priv(netdev); - /* return error if RXHASH is being enabled when RSS is not supported */ - if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) - features &= ~NETIF_F_RXHASH; - /* If Rx checksum is disabled, then RSC/LRO should also be disabled */ if (!(features & NETIF_F_RXCSUM)) features &= ~NETIF_F_LRO; @@ -6802,7 +6792,7 @@ static int ixgbe_set_features(struct net_device *netdev, if (!(features & NETIF_F_NTUPLE)) { if (adapter->flags & IXGBE_FLAG_FDIR_PERFECT_CAPABLE) { /* turn off Flow Director, set ATR and reset */ - if ((adapter->flags & IXGBE_FLAG_RSS_ENABLED) && + if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) && !(adapter->flags & IXGBE_FLAG_DCB_ENABLED)) adapter->flags |= IXGBE_FLAG_FDIR_HASH_CAPABLE; need_reset = true; @@ -7294,11 +7284,6 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev, if (err) goto err_sw_init; - if (!(adapter->flags & IXGBE_FLAG_RSS_ENABLED)) { - netdev->hw_features &= ~NETIF_F_RXHASH; - netdev->features &= ~NETIF_F_RXHASH; - } - /* WOL not supported for all devices */ adapter->wol = 0; hw->eeprom.ops.read(hw, 0x2c, &adapter->eeprom_cap);