diff options
Diffstat (limited to 'drivers/net/ethernet/intel/iavf/iavf_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/intel/iavf/iavf_ethtool.c | 252 |
1 files changed, 250 insertions, 2 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c index 3ebfef737f5c..3d904bc6ee76 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c +++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c @@ -1419,6 +1419,252 @@ static int iavf_del_fdir_ethtool(struct iavf_adapter *adapter, struct ethtool_rx } /** + * iavf_adv_rss_parse_hdrs - parses headers from RSS hash input + * @cmd: ethtool rxnfc command + * + * This function parses the rxnfc command and returns intended + * header types for RSS configuration + */ +static u32 iavf_adv_rss_parse_hdrs(struct ethtool_rxnfc *cmd) +{ + u32 hdrs = IAVF_ADV_RSS_FLOW_SEG_HDR_NONE; + + switch (cmd->flow_type) { + case TCP_V4_FLOW: + hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_TCP | + IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4; + break; + case UDP_V4_FLOW: + hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_UDP | + IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4; + break; + case SCTP_V4_FLOW: + hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP | + IAVF_ADV_RSS_FLOW_SEG_HDR_IPV4; + break; + case TCP_V6_FLOW: + hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_TCP | + IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6; + break; + case UDP_V6_FLOW: + hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_UDP | + IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6; + break; + case SCTP_V6_FLOW: + hdrs |= IAVF_ADV_RSS_FLOW_SEG_HDR_SCTP | + IAVF_ADV_RSS_FLOW_SEG_HDR_IPV6; + break; + default: + break; + } + + return hdrs; +} + +/** + * iavf_adv_rss_parse_hash_flds - parses hash fields from RSS hash input + * @cmd: ethtool rxnfc command + * + * This function parses the rxnfc command and returns intended hash fields for + * RSS configuration + */ +static u64 iavf_adv_rss_parse_hash_flds(struct ethtool_rxnfc *cmd) +{ + u64 hfld = IAVF_ADV_RSS_HASH_INVALID; + + if (cmd->data & RXH_IP_SRC || cmd->data & RXH_IP_DST) { + switch (cmd->flow_type) { + case TCP_V4_FLOW: + case UDP_V4_FLOW: + case SCTP_V4_FLOW: + if (cmd->data & RXH_IP_SRC) + hfld |= IAVF_ADV_RSS_HASH_FLD_IPV4_SA; + if (cmd->data & RXH_IP_DST) + hfld |= IAVF_ADV_RSS_HASH_FLD_IPV4_DA; + break; + case TCP_V6_FLOW: + case UDP_V6_FLOW: + case SCTP_V6_FLOW: + if (cmd->data & RXH_IP_SRC) + hfld |= IAVF_ADV_RSS_HASH_FLD_IPV6_SA; + if (cmd->data & RXH_IP_DST) + hfld |= IAVF_ADV_RSS_HASH_FLD_IPV6_DA; + break; + default: + break; + } + } + + if (cmd->data & RXH_L4_B_0_1 || cmd->data & RXH_L4_B_2_3) { + switch (cmd->flow_type) { + case TCP_V4_FLOW: + case TCP_V6_FLOW: + if (cmd->data & RXH_L4_B_0_1) + hfld |= IAVF_ADV_RSS_HASH_FLD_TCP_SRC_PORT; + if (cmd->data & RXH_L4_B_2_3) + hfld |= IAVF_ADV_RSS_HASH_FLD_TCP_DST_PORT; + break; + case UDP_V4_FLOW: + case UDP_V6_FLOW: + if (cmd->data & RXH_L4_B_0_1) + hfld |= IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT; + if (cmd->data & RXH_L4_B_2_3) + hfld |= IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT; + break; + case SCTP_V4_FLOW: + case SCTP_V6_FLOW: + if (cmd->data & RXH_L4_B_0_1) + hfld |= IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT; + if (cmd->data & RXH_L4_B_2_3) + hfld |= IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT; + break; + default: + break; + } + } + + return hfld; +} + +/** + * iavf_set_adv_rss_hash_opt - Enable/Disable flow types for RSS hash + * @adapter: pointer to the VF adapter structure + * @cmd: ethtool rxnfc command + * + * Returns Success if the flow input set is supported. + */ +static int +iavf_set_adv_rss_hash_opt(struct iavf_adapter *adapter, + struct ethtool_rxnfc *cmd) +{ + struct iavf_adv_rss *rss_old, *rss_new; + bool rss_new_add = false; + int count = 50, err = 0; + u64 hash_flds; + u32 hdrs; + + if (!ADV_RSS_SUPPORT(adapter)) + return -EOPNOTSUPP; + + hdrs = iavf_adv_rss_parse_hdrs(cmd); + if (hdrs == IAVF_ADV_RSS_FLOW_SEG_HDR_NONE) + return -EINVAL; + + hash_flds = iavf_adv_rss_parse_hash_flds(cmd); + if (hash_flds == IAVF_ADV_RSS_HASH_INVALID) + return -EINVAL; + + rss_new = kzalloc(sizeof(*rss_new), GFP_KERNEL); + if (!rss_new) + return -ENOMEM; + + if (iavf_fill_adv_rss_cfg_msg(&rss_new->cfg_msg, hdrs, hash_flds)) { + kfree(rss_new); + return -EINVAL; + } + + while (test_and_set_bit(__IAVF_IN_CRITICAL_TASK, + &adapter->crit_section)) { + if (--count == 0) { + kfree(rss_new); + return -EINVAL; + } + + udelay(1); + } + + spin_lock_bh(&adapter->adv_rss_lock); + rss_old = iavf_find_adv_rss_cfg_by_hdrs(adapter, hdrs); + if (rss_old) { + if (rss_old->state != IAVF_ADV_RSS_ACTIVE) { + err = -EBUSY; + } else if (rss_old->hash_flds != hash_flds) { + rss_old->state = IAVF_ADV_RSS_ADD_REQUEST; + rss_old->hash_flds = hash_flds; + memcpy(&rss_old->cfg_msg, &rss_new->cfg_msg, + sizeof(rss_new->cfg_msg)); + adapter->aq_required |= IAVF_FLAG_AQ_ADD_ADV_RSS_CFG; + } else { + err = -EEXIST; + } + } else { + rss_new_add = true; + rss_new->state = IAVF_ADV_RSS_ADD_REQUEST; + rss_new->packet_hdrs = hdrs; + rss_new->hash_flds = hash_flds; + list_add_tail(&rss_new->list, &adapter->adv_rss_list_head); + adapter->aq_required |= IAVF_FLAG_AQ_ADD_ADV_RSS_CFG; + } + spin_unlock_bh(&adapter->adv_rss_lock); + + if (!err) + mod_delayed_work(iavf_wq, &adapter->watchdog_task, 0); + + clear_bit(__IAVF_IN_CRITICAL_TASK, &adapter->crit_section); + + if (!rss_new_add) + kfree(rss_new); + + return err; +} + +/** + * iavf_get_adv_rss_hash_opt - Retrieve hash fields for a given flow-type + * @adapter: pointer to the VF adapter structure + * @cmd: ethtool rxnfc command + * + * Returns Success if the flow input set is supported. + */ +static int +iavf_get_adv_rss_hash_opt(struct iavf_adapter *adapter, + struct ethtool_rxnfc *cmd) +{ + struct iavf_adv_rss *rss; + u64 hash_flds; + u32 hdrs; + + if (!ADV_RSS_SUPPORT(adapter)) + return -EOPNOTSUPP; + + cmd->data = 0; + + hdrs = iavf_adv_rss_parse_hdrs(cmd); + if (hdrs == IAVF_ADV_RSS_FLOW_SEG_HDR_NONE) + return -EINVAL; + + spin_lock_bh(&adapter->adv_rss_lock); + rss = iavf_find_adv_rss_cfg_by_hdrs(adapter, hdrs); + if (rss) + hash_flds = rss->hash_flds; + else + hash_flds = IAVF_ADV_RSS_HASH_INVALID; + spin_unlock_bh(&adapter->adv_rss_lock); + + if (hash_flds == IAVF_ADV_RSS_HASH_INVALID) + return -EINVAL; + + if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_IPV4_SA | + IAVF_ADV_RSS_HASH_FLD_IPV6_SA)) + cmd->data |= (u64)RXH_IP_SRC; + + if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_IPV4_DA | + IAVF_ADV_RSS_HASH_FLD_IPV6_DA)) + cmd->data |= (u64)RXH_IP_DST; + + if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_SRC_PORT | + IAVF_ADV_RSS_HASH_FLD_UDP_SRC_PORT | + IAVF_ADV_RSS_HASH_FLD_SCTP_SRC_PORT)) + cmd->data |= (u64)RXH_L4_B_0_1; + + if (hash_flds & (IAVF_ADV_RSS_HASH_FLD_TCP_DST_PORT | + IAVF_ADV_RSS_HASH_FLD_UDP_DST_PORT | + IAVF_ADV_RSS_HASH_FLD_SCTP_DST_PORT)) + cmd->data |= (u64)RXH_L4_B_2_3; + + return 0; +} + +/** * iavf_set_rxnfc - command to set Rx flow rules. * @netdev: network interface device structure * @cmd: ethtool rxnfc command @@ -1437,6 +1683,9 @@ static int iavf_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) case ETHTOOL_SRXCLSRLDEL: ret = iavf_del_fdir_ethtool(adapter, cmd); break; + case ETHTOOL_SRXFH: + ret = iavf_set_adv_rss_hash_opt(adapter, cmd); + break; default: break; } @@ -1477,8 +1726,7 @@ static int iavf_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, ret = iavf_get_fdir_fltr_ids(adapter, cmd, (u32 *)rule_locs); break; case ETHTOOL_GRXFH: - netdev_info(netdev, - "RSS hash info is not available to vf, use pf.\n"); + ret = iavf_get_adv_rss_hash_opt(adapter, cmd); break; default: break; |