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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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octeontx2-pf: ethtool RSS config support
Added support to show or configure RSS hash key, indirection table, 2,4 tuple via ethtool. Also added debug msg_level support to dump messages when HW reports errors in packet received or transmitted. Signed-off-by: Prakash Brahmajyosyula <bprakash@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sunil Goutham
David S. Miller
parent
d45d897984
commit
6e92d71bf8
@ -220,7 +220,7 @@ int otx2_hw_set_mtu(struct otx2_nic *pfvf, int mtu)
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return err;
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}
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static int otx2_set_flowkey_cfg(struct otx2_nic *pfvf)
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int otx2_set_flowkey_cfg(struct otx2_nic *pfvf)
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{
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struct otx2_rss_info *rss = &pfvf->hw.rss_info;
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struct nix_rss_flowkey_cfg *req;
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@ -241,7 +241,7 @@ static int otx2_set_flowkey_cfg(struct otx2_nic *pfvf)
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return err;
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}
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static int otx2_set_rss_table(struct otx2_nic *pfvf)
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int otx2_set_rss_table(struct otx2_nic *pfvf)
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{
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struct otx2_rss_info *rss = &pfvf->hw.rss_info;
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struct mbox *mbox = &pfvf->mbox;
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@ -280,7 +280,7 @@ static int otx2_set_rss_table(struct otx2_nic *pfvf)
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return err;
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}
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static void otx2_set_rss_key(struct otx2_nic *pfvf)
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void otx2_set_rss_key(struct otx2_nic *pfvf)
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{
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struct otx2_rss_info *rss = &pfvf->hw.rss_info;
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u64 *key = (u64 *)&rss->key[4];
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@ -222,6 +222,9 @@ struct otx2_nic {
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struct work_struct reset_task;
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struct refill_work *refill_wrk;
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/* Ethtool stuff */
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u32 msg_enable;
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/* Block address of NIX either BLKADDR_NIX0 or BLKADDR_NIX1 */
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int nix_blkaddr;
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};
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@ -580,6 +583,9 @@ void otx2_cleanup_tx_cqes(struct otx2_nic *pfvf, struct otx2_cq_queue *cq);
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/* RSS configuration APIs*/
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int otx2_rss_init(struct otx2_nic *pfvf);
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int otx2_set_flowkey_cfg(struct otx2_nic *pfvf);
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void otx2_set_rss_key(struct otx2_nic *pfvf);
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int otx2_set_rss_table(struct otx2_nic *pfvf);
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/* Mbox handlers */
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void mbox_handler_msix_offset(struct otx2_nic *pfvf,
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@ -389,7 +389,253 @@ static int otx2_set_coalesce(struct net_device *netdev,
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return 0;
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}
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static int otx2_get_rss_hash_opts(struct otx2_nic *pfvf,
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struct ethtool_rxnfc *nfc)
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{
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struct otx2_rss_info *rss = &pfvf->hw.rss_info;
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if (!(rss->flowkey_cfg &
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(NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6)))
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return 0;
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/* Mimimum is IPv4 and IPv6, SIP/DIP */
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nfc->data = RXH_IP_SRC | RXH_IP_DST;
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switch (nfc->flow_type) {
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case TCP_V4_FLOW:
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case TCP_V6_FLOW:
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if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_TCP)
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nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
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break;
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case UDP_V4_FLOW:
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case UDP_V6_FLOW:
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if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_UDP)
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nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
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break;
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case SCTP_V4_FLOW:
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case SCTP_V6_FLOW:
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if (rss->flowkey_cfg & NIX_FLOW_KEY_TYPE_SCTP)
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nfc->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
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break;
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case AH_ESP_V4_FLOW:
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case AH_V4_FLOW:
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case ESP_V4_FLOW:
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case IPV4_FLOW:
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case AH_ESP_V6_FLOW:
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case AH_V6_FLOW:
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case ESP_V6_FLOW:
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case IPV6_FLOW:
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int otx2_set_rss_hash_opts(struct otx2_nic *pfvf,
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struct ethtool_rxnfc *nfc)
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{
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struct otx2_rss_info *rss = &pfvf->hw.rss_info;
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u32 rxh_l4 = RXH_L4_B_0_1 | RXH_L4_B_2_3;
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u32 rss_cfg = rss->flowkey_cfg;
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if (!rss->enable) {
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netdev_err(pfvf->netdev,
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"RSS is disabled, cannot change settings\n");
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return -EIO;
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}
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/* Mimimum is IPv4 and IPv6, SIP/DIP */
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if (!(nfc->data & RXH_IP_SRC) || !(nfc->data & RXH_IP_DST))
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return -EINVAL;
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switch (nfc->flow_type) {
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case TCP_V4_FLOW:
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case TCP_V6_FLOW:
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/* Different config for v4 and v6 is not supported.
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* Both of them have to be either 4-tuple or 2-tuple.
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*/
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switch (nfc->data & rxh_l4) {
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case 0:
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rss_cfg &= ~NIX_FLOW_KEY_TYPE_TCP;
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break;
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case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
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rss_cfg |= NIX_FLOW_KEY_TYPE_TCP;
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break;
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default:
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return -EINVAL;
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}
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break;
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case UDP_V4_FLOW:
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case UDP_V6_FLOW:
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switch (nfc->data & rxh_l4) {
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case 0:
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rss_cfg &= ~NIX_FLOW_KEY_TYPE_UDP;
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break;
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case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
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rss_cfg |= NIX_FLOW_KEY_TYPE_UDP;
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break;
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default:
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return -EINVAL;
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}
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break;
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case SCTP_V4_FLOW:
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case SCTP_V6_FLOW:
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switch (nfc->data & rxh_l4) {
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case 0:
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rss_cfg &= ~NIX_FLOW_KEY_TYPE_SCTP;
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break;
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case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
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rss_cfg |= NIX_FLOW_KEY_TYPE_SCTP;
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break;
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default:
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return -EINVAL;
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}
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break;
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case IPV4_FLOW:
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case IPV6_FLOW:
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rss_cfg = NIX_FLOW_KEY_TYPE_IPV4 | NIX_FLOW_KEY_TYPE_IPV6;
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break;
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default:
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return -EINVAL;
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}
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rss->flowkey_cfg = rss_cfg;
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otx2_set_flowkey_cfg(pfvf);
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return 0;
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}
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static int otx2_get_rxnfc(struct net_device *dev,
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struct ethtool_rxnfc *nfc, u32 *rules)
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{
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struct otx2_nic *pfvf = netdev_priv(dev);
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int ret = -EOPNOTSUPP;
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switch (nfc->cmd) {
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case ETHTOOL_GRXRINGS:
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nfc->data = pfvf->hw.rx_queues;
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ret = 0;
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break;
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case ETHTOOL_GRXFH:
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return otx2_get_rss_hash_opts(pfvf, nfc);
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default:
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break;
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}
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return ret;
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}
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static int otx2_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *nfc)
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{
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struct otx2_nic *pfvf = netdev_priv(dev);
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int ret = -EOPNOTSUPP;
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switch (nfc->cmd) {
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case ETHTOOL_SRXFH:
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ret = otx2_set_rss_hash_opts(pfvf, nfc);
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break;
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default:
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break;
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}
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return ret;
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}
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static u32 otx2_get_rxfh_key_size(struct net_device *netdev)
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{
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struct otx2_nic *pfvf = netdev_priv(netdev);
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struct otx2_rss_info *rss;
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rss = &pfvf->hw.rss_info;
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return sizeof(rss->key);
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}
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static u32 otx2_get_rxfh_indir_size(struct net_device *dev)
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{
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struct otx2_nic *pfvf = netdev_priv(dev);
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return pfvf->hw.rss_info.rss_size;
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}
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/* Get RSS configuration */
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static int otx2_get_rxfh(struct net_device *dev, u32 *indir,
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u8 *hkey, u8 *hfunc)
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{
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struct otx2_nic *pfvf = netdev_priv(dev);
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struct otx2_rss_info *rss;
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int idx;
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rss = &pfvf->hw.rss_info;
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if (indir) {
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for (idx = 0; idx < rss->rss_size; idx++)
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indir[idx] = rss->ind_tbl[idx];
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}
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if (hkey)
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memcpy(hkey, rss->key, sizeof(rss->key));
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if (hfunc)
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*hfunc = ETH_RSS_HASH_TOP;
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return 0;
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}
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/* Configure RSS table and hash key */
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static int otx2_set_rxfh(struct net_device *dev, const u32 *indir,
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const u8 *hkey, const u8 hfunc)
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{
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struct otx2_nic *pfvf = netdev_priv(dev);
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struct otx2_rss_info *rss;
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int idx;
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if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
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return -EOPNOTSUPP;
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rss = &pfvf->hw.rss_info;
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if (!rss->enable) {
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netdev_err(dev, "RSS is disabled, cannot change settings\n");
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return -EIO;
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}
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if (indir) {
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for (idx = 0; idx < rss->rss_size; idx++)
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rss->ind_tbl[idx] = indir[idx];
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}
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if (hkey) {
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memcpy(rss->key, hkey, sizeof(rss->key));
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otx2_set_rss_key(pfvf);
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}
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otx2_set_rss_table(pfvf);
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return 0;
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}
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static u32 otx2_get_msglevel(struct net_device *netdev)
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{
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struct otx2_nic *pfvf = netdev_priv(netdev);
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return pfvf->msg_enable;
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}
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static void otx2_set_msglevel(struct net_device *netdev, u32 val)
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{
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struct otx2_nic *pfvf = netdev_priv(netdev);
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pfvf->msg_enable = val;
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}
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static u32 otx2_get_link(struct net_device *netdev)
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{
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struct otx2_nic *pfvf = netdev_priv(netdev);
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return pfvf->linfo.link_up;
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}
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static const struct ethtool_ops otx2_ethtool_ops = {
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.get_link = otx2_get_link,
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.get_drvinfo = otx2_get_drvinfo,
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.get_strings = otx2_get_strings,
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.get_ethtool_stats = otx2_get_ethtool_stats,
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@ -400,6 +646,14 @@ static const struct ethtool_ops otx2_ethtool_ops = {
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.set_ringparam = otx2_set_ringparam,
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.get_coalesce = otx2_get_coalesce,
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.set_coalesce = otx2_set_coalesce,
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.get_rxnfc = otx2_get_rxnfc,
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.set_rxnfc = otx2_set_rxnfc,
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.get_rxfh_key_size = otx2_get_rxfh_key_size,
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.get_rxfh_indir_size = otx2_get_rxfh_indir_size,
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.get_rxfh = otx2_get_rxfh,
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.set_rxfh = otx2_set_rxfh,
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.get_msglevel = otx2_get_msglevel,
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.set_msglevel = otx2_set_msglevel,
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};
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void otx2_set_ethtool_ops(struct net_device *netdev)
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@ -84,7 +84,7 @@ static void otx2_snd_pkt_handler(struct otx2_nic *pfvf,
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struct sk_buff *skb = NULL;
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struct sg_list *sg;
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if (unlikely(snd_comp->status))
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if (unlikely(snd_comp->status) && netif_msg_tx_err(pfvf))
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net_err_ratelimited("%s: TX%d: Error in send CQ status:%x\n",
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pfvf->netdev->name, cq->cint_idx,
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snd_comp->status);
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@ -144,6 +144,11 @@ static bool otx2_check_rcv_errors(struct otx2_nic *pfvf,
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struct otx2_drv_stats *stats = &pfvf->hw.drv_stats;
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struct nix_rx_parse_s *parse = &cqe->parse;
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if (netif_msg_rx_err(pfvf))
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netdev_err(pfvf->netdev,
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"RQ%d: Error pkt with errlev:0x%x errcode:0x%x\n",
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qidx, parse->errlev, parse->errcode);
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if (parse->errlev == NPC_ERRLVL_RE) {
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switch (parse->errcode) {
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case ERRCODE_FCS:
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