diff options
Diffstat (limited to 'drivers/net/ethernet/sun/niu.c')
| -rw-r--r-- | drivers/net/ethernet/sun/niu.c | 50 |
1 files changed, 40 insertions, 10 deletions
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c index ddca8fc7883e..893216b0e08d 100644 --- a/drivers/net/ethernet/sun/niu.c +++ b/drivers/net/ethernet/sun/niu.c @@ -3336,7 +3336,7 @@ static int niu_rbr_add_page(struct niu *np, struct rx_ring_info *rp, addr = np->ops->map_page(np->device, page, 0, PAGE_SIZE, DMA_FROM_DEVICE); - if (!addr) { + if (np->ops->mapping_error(np->device, addr)) { __free_page(page); return -ENOMEM; } @@ -5825,7 +5825,7 @@ static int niu_init_mac(struct niu *np) /* This looks hookey but the RX MAC reset we just did will * undo some of the state we setup in niu_init_tx_mac() so we * have to call it again. In particular, the RX MAC reset will - * set the XMAC_MAX register back to it's default value. + * set the XMAC_MAX register back to its default value. */ niu_init_tx_mac(np); niu_enable_tx_mac(np, 1); @@ -6676,6 +6676,8 @@ static netdev_tx_t niu_start_xmit(struct sk_buff *skb, len = skb_headlen(skb); mapping = np->ops->map_single(np->device, skb->data, len, DMA_TO_DEVICE); + if (np->ops->mapping_error(np->device, mapping)) + goto out_drop; prod = rp->prod; @@ -6717,6 +6719,8 @@ static netdev_tx_t niu_start_xmit(struct sk_buff *skb, mapping = np->ops->map_page(np->device, skb_frag_page(frag), skb_frag_off(frag), len, DMA_TO_DEVICE); + if (np->ops->mapping_error(np->device, mapping)) + goto out_unmap; rp->tx_buffs[prod].skb = NULL; rp->tx_buffs[prod].mapping = mapping; @@ -6741,6 +6745,19 @@ static netdev_tx_t niu_start_xmit(struct sk_buff *skb, out: return NETDEV_TX_OK; +out_unmap: + while (i--) { + const skb_frag_t *frag; + + prod = PREVIOUS_TX(rp, prod); + frag = &skb_shinfo(skb)->frags[i]; + np->ops->unmap_page(np->device, rp->tx_buffs[prod].mapping, + skb_frag_size(frag), DMA_TO_DEVICE); + } + + np->ops->unmap_single(np->device, rp->tx_buffs[rp->prod].mapping, + skb_headlen(skb), DMA_TO_DEVICE); + out_drop: rp->tx_errors++; kfree_skb(skb); @@ -7077,8 +7094,10 @@ static int niu_ethflow_to_flowkey(u64 ethflow, u64 *flow_key) } -static int niu_get_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) +static int niu_get_rxfh_fields(struct net_device *dev, + struct ethtool_rxfh_fields *nfc) { + struct niu *np = netdev_priv(dev); u64 class; nfc->data = 0; @@ -7290,9 +7309,6 @@ static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, int ret = 0; switch (cmd->cmd) { - case ETHTOOL_GRXFH: - ret = niu_get_hash_opts(np, cmd); - break; case ETHTOOL_GRXRINGS: cmd->data = np->num_rx_rings; break; @@ -7313,8 +7329,11 @@ static int niu_get_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd, return ret; } -static int niu_set_hash_opts(struct niu *np, struct ethtool_rxnfc *nfc) +static int niu_set_rxfh_fields(struct net_device *dev, + const struct ethtool_rxfh_fields *nfc, + struct netlink_ext_ack *extack) { + struct niu *np = netdev_priv(dev); u64 class; u64 flow_key = 0; unsigned long flags; @@ -7656,9 +7675,6 @@ static int niu_set_nfc(struct net_device *dev, struct ethtool_rxnfc *cmd) int ret = 0; switch (cmd->cmd) { - case ETHTOOL_SRXFH: - ret = niu_set_hash_opts(np, cmd); - break; case ETHTOOL_SRXCLSRLINS: ret = niu_add_ethtool_tcam_entry(np, cmd); break; @@ -7912,6 +7928,8 @@ static const struct ethtool_ops niu_ethtool_ops = { .set_phys_id = niu_set_phys_id, .get_rxnfc = niu_get_nfc, .set_rxnfc = niu_set_nfc, + .get_rxfh_fields = niu_get_rxfh_fields, + .set_rxfh_fields = niu_set_rxfh_fields, .get_link_ksettings = niu_get_link_ksettings, .set_link_ksettings = niu_set_link_ksettings, }; @@ -9644,6 +9662,11 @@ static void niu_pci_unmap_single(struct device *dev, u64 dma_address, dma_unmap_single(dev, dma_address, size, direction); } +static int niu_pci_mapping_error(struct device *dev, u64 addr) +{ + return dma_mapping_error(dev, addr); +} + static const struct niu_ops niu_pci_ops = { .alloc_coherent = niu_pci_alloc_coherent, .free_coherent = niu_pci_free_coherent, @@ -9651,6 +9674,7 @@ static const struct niu_ops niu_pci_ops = { .unmap_page = niu_pci_unmap_page, .map_single = niu_pci_map_single, .unmap_single = niu_pci_unmap_single, + .mapping_error = niu_pci_mapping_error, }; static void niu_driver_version(void) @@ -10019,6 +10043,11 @@ static void niu_phys_unmap_single(struct device *dev, u64 dma_address, /* Nothing to do. */ } +static int niu_phys_mapping_error(struct device *dev, u64 dma_address) +{ + return false; +} + static const struct niu_ops niu_phys_ops = { .alloc_coherent = niu_phys_alloc_coherent, .free_coherent = niu_phys_free_coherent, @@ -10026,6 +10055,7 @@ static const struct niu_ops niu_phys_ops = { .unmap_page = niu_phys_unmap_page, .map_single = niu_phys_map_single, .unmap_single = niu_phys_unmap_single, + .mapping_error = niu_phys_mapping_error, }; static int niu_of_probe(struct platform_device *op) |