diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c')
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 103 |
1 files changed, 99 insertions, 4 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index 8cb1cf56d388..60a67b90f2b0 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -43,6 +43,24 @@ enum { TYPE_PFVF, }; +static int otx2_change_mtu(struct net_device *netdev, int new_mtu) +{ + bool if_up = netif_running(netdev); + int err = 0; + + if (if_up) + otx2_stop(netdev); + + netdev_info(netdev, "Changing MTU from %d to %d\n", + netdev->mtu, new_mtu); + netdev->mtu = new_mtu; + + if (if_up) + err = otx2_open(netdev); + + return err; +} + static void otx2_queue_work(struct mbox *mw, struct workqueue_struct *mbox_wq, int first, int mdevs, u64 intr, int type) { @@ -420,6 +438,27 @@ static int otx2_cgx_config_linkevents(struct otx2_nic *pf, bool enable) return err; } +static int otx2_cgx_config_loopback(struct otx2_nic *pf, bool enable) +{ + struct msg_req *msg; + int err; + + otx2_mbox_lock(&pf->mbox); + if (enable) + msg = otx2_mbox_alloc_msg_cgx_intlbk_enable(&pf->mbox); + else + msg = otx2_mbox_alloc_msg_cgx_intlbk_disable(&pf->mbox); + + if (!msg) { + otx2_mbox_unlock(&pf->mbox); + return -ENOMEM; + } + + err = otx2_sync_mbox_msg(&pf->mbox); + otx2_mbox_unlock(&pf->mbox); + return err; +} + static int otx2_set_real_num_queues(struct net_device *netdev, int tx_queues, int rx_queues) { @@ -519,7 +558,7 @@ static int otx2_init_hw_resources(struct otx2_nic *pf) hw->pool_cnt = hw->rqpool_cnt + hw->sqpool_cnt; /* Get the size of receive buffers to allocate */ - pf->rbsize = RCV_FRAG_LEN(pf->netdev->mtu); + pf->rbsize = RCV_FRAG_LEN(pf->netdev->mtu + OTX2_ETH_HLEN); otx2_mbox_lock(mbox); /* NPA init */ @@ -658,7 +697,7 @@ static void otx2_free_hw_resources(struct otx2_nic *pf) otx2_mbox_unlock(mbox); } -static int otx2_open(struct net_device *netdev) +int otx2_open(struct net_device *netdev) { struct otx2_nic *pf = netdev_priv(netdev); struct otx2_cq_poll *cq_poll = NULL; @@ -715,6 +754,11 @@ static int otx2_open(struct net_device *netdev) napi_enable(&cq_poll->napi); } + /* Set maximum frame size allowed in HW */ + err = otx2_hw_set_mtu(pf, netdev->mtu); + if (err) + goto err_disable_napi; + /* Register CQ IRQ handlers */ vec = pf->hw.nix_msixoff + NIX_LF_CINT_VEC_START; for (qidx = 0; qidx < pf->hw.cint_cnt; qidx++) { @@ -759,6 +803,7 @@ static int otx2_open(struct net_device *netdev) err_free_cints: otx2_free_cints(pf, qidx); +err_disable_napi: otx2_disable_napi(pf); otx2_free_hw_resources(pf); err_free_mem: @@ -768,7 +813,7 @@ err_free_mem: return err; } -static int otx2_stop(struct net_device *netdev) +int otx2_stop(struct net_device *netdev) { struct otx2_nic *pf = netdev_priv(netdev); struct otx2_cq_poll *cq_poll = NULL; @@ -847,10 +892,53 @@ static netdev_tx_t otx2_xmit(struct sk_buff *skb, struct net_device *netdev) return NETDEV_TX_OK; } +static void otx2_set_rx_mode(struct net_device *netdev) +{ + struct otx2_nic *pf = netdev_priv(netdev); + struct nix_rx_mode *req; + + if (!(netdev->flags & IFF_UP)) + return; + + otx2_mbox_lock(&pf->mbox); + req = otx2_mbox_alloc_msg_nix_set_rx_mode(&pf->mbox); + if (!req) { + otx2_mbox_unlock(&pf->mbox); + return; + } + + req->mode = NIX_RX_MODE_UCAST; + + /* We don't support MAC address filtering yet */ + if (netdev->flags & IFF_PROMISC) + req->mode |= NIX_RX_MODE_PROMISC; + else if (netdev->flags & (IFF_ALLMULTI | IFF_MULTICAST)) + req->mode |= NIX_RX_MODE_ALLMULTI; + + otx2_sync_mbox_msg(&pf->mbox); + otx2_mbox_unlock(&pf->mbox); +} + +static int otx2_set_features(struct net_device *netdev, + netdev_features_t features) +{ + netdev_features_t changed = features ^ netdev->features; + struct otx2_nic *pf = netdev_priv(netdev); + + if ((changed & NETIF_F_LOOPBACK) && netif_running(netdev)) + return otx2_cgx_config_loopback(pf, + features & NETIF_F_LOOPBACK); + return 0; +} + static const struct net_device_ops otx2_netdev_ops = { .ndo_open = otx2_open, .ndo_stop = otx2_stop, .ndo_start_xmit = otx2_xmit, + .ndo_set_mac_address = otx2_set_mac_address, + .ndo_change_mtu = otx2_change_mtu, + .ndo_set_rx_mode = otx2_set_rx_mode, + .ndo_set_features = otx2_set_features, }; static int otx2_check_pf_usable(struct otx2_nic *nic) @@ -1005,6 +1093,9 @@ static int otx2_probe(struct pci_dev *pdev, const struct pci_device_id *id) otx2_setup_dev_hw_settings(pf); + /* Assign default mac address */ + otx2_get_mac_from_af(netdev); + /* NPA's pool is a stack to which SW frees buffer pointers via Aura. * HW allocates buffer pointer from stack and uses it for DMA'ing * ingress packet. In some scenarios HW can free back allocated buffer @@ -1022,10 +1113,14 @@ static int otx2_probe(struct pci_dev *pdev, const struct pci_device_id *id) NETIF_F_IPV6_CSUM | NETIF_F_SG); netdev->features |= netdev->hw_features; - netdev->hw_features |= NETIF_F_RXALL; + netdev->hw_features |= NETIF_F_LOOPBACK | NETIF_F_RXALL; netdev->netdev_ops = &otx2_netdev_ops; + /* MTU range: 64 - 9190 */ + netdev->min_mtu = OTX2_MIN_MTU; + netdev->max_mtu = OTX2_MAX_MTU; + err = register_netdev(netdev); if (err) { dev_err(dev, "Failed to register netdevice\n"); |