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dpaa_eth: add NETIF_F_RXHASH

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Set the skb hash when then FMan Keygen hash result is available.

Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Madalin Bucur 2017-08-27 16:13:41 +03:00 committed by David S. Miller
parent bcf0994b23
commit 056057e288
5 changed files with 41 additions and 5 deletions
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23
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
View File

@ -236,7 +236,7 @@ static int dpaa_netdev_init(struct net_device *net_dev,
net_dev->max_mtu = dpaa_get_max_mtu();
net_dev->hw_features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
NETIF_F_LLTX);
NETIF_F_LLTX | NETIF_F_RXHASH);
net_dev->hw_features |= NETIF_F_SG | NETIF_F_HIGHDMA;
/* The kernels enables GSO automatically, if we declare NETIF_F_SG.
@ -2237,12 +2237,13 @@ static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal,
dma_addr_t addr = qm_fd_addr(fd);
enum qm_fd_format fd_format;
struct net_device *net_dev;
u32 fd_status;
u32 fd_status, hash_offset;
struct dpaa_bp *dpaa_bp;
struct dpaa_priv *priv;
unsigned int skb_len;
struct sk_buff *skb;
int *count_ptr;
void *vaddr;
fd_status = be32_to_cpu(fd->status);
fd_format = qm_fd_get_format(fd);
@ -2288,7 +2289,8 @@ static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal,
dma_unmap_single(dpaa_bp->dev, addr, dpaa_bp->size, DMA_FROM_DEVICE);
/* prefetch the first 64 bytes of the frame or the SGT start */
prefetch(phys_to_virt(addr) + qm_fd_get_offset(fd));
vaddr = phys_to_virt(addr);
prefetch(vaddr + qm_fd_get_offset(fd));
fd_format = qm_fd_get_format(fd);
/* The only FD types that we may receive are contig and S/G */
@ -2309,6 +2311,18 @@ static enum qman_cb_dqrr_result rx_default_dqrr(struct qman_portal *portal,
skb->protocol = eth_type_trans(skb, net_dev);
if (net_dev->features & NETIF_F_RXHASH && priv->keygen_in_use &&
!fman_port_get_hash_result_offset(priv->mac_dev->port[RX],
&hash_offset)) {
enum pkt_hash_types type;
/* if L4 exists, it was used in the hash generation */
type = be32_to_cpu(fd->status) & FM_FD_STAT_L4CV ?
PKT_HASH_TYPE_L4 : PKT_HASH_TYPE_L3;
skb_set_hash(skb, be32_to_cpu(*(u32 *)(vaddr + hash_offset)),
type);
}
skb_len = skb->len;
if (unlikely(netif_receive_skb(skb) == NET_RX_DROP))
@ -2774,6 +2788,9 @@ static int dpaa_eth_probe(struct platform_device *pdev)
if (err)
goto init_ports_failed;
/* Rx traffic distribution based on keygen hashing defaults to on */
priv->keygen_in_use = true;
priv->percpu_priv = devm_alloc_percpu(dev, *priv->percpu_priv);
if (!priv->percpu_priv) {
dev_err(dev, "devm_alloc_percpu() failed\n");

1
drivers/net/ethernet/freescale/dpaa/dpaa_eth.h
View File

@ -159,6 +159,7 @@ struct dpaa_priv {
struct list_head dpaa_fq_list;
u8 num_tc;
bool keygen_in_use;
u32 msg_enable; /* net_device message level */
struct {

9
drivers/net/ethernet/freescale/dpaa/dpaa_ethtool.c
View File

@ -402,6 +402,8 @@ static void dpaa_get_strings(struct net_device *net_dev, u32 stringset,
static int dpaa_get_hash_opts(struct net_device *dev,
struct ethtool_rxnfc *cmd)
{
struct dpaa_priv *priv = netdev_priv(dev);
cmd->data = 0;
switch (cmd->flow_type) {
@ -409,7 +411,8 @@ static int dpaa_get_hash_opts(struct net_device *dev,
case TCP_V6_FLOW:
case UDP_V4_FLOW:
case UDP_V6_FLOW:
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
if (priv->keygen_in_use)
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
/* Fall through */
case IPV4_FLOW:
case IPV6_FLOW:
@ -421,7 +424,8 @@ static int dpaa_get_hash_opts(struct net_device *dev,
case AH_V6_FLOW:
case ESP_V4_FLOW:
case ESP_V6_FLOW:
cmd->data |= RXH_IP_SRC | RXH_IP_DST;
if (priv->keygen_in_use)
cmd->data |= RXH_IP_SRC | RXH_IP_DST;
break;
default:
cmd->data = 0;
@ -458,6 +462,7 @@ static void dpaa_set_hash(struct net_device *net_dev, bool enable)
rxport = mac_dev->port[0];
fman_port_use_kg_hash(rxport, enable);
priv->keygen_in_use = enable;
}
static int dpaa_set_hash_opts(struct net_device *dev,

11
drivers/net/ethernet/freescale/fman/fman_port.c
View File

@ -1720,6 +1720,17 @@ u32 fman_port_get_qman_channel_id(struct fman_port *port)
}
EXPORT_SYMBOL(fman_port_get_qman_channel_id);
int fman_port_get_hash_result_offset(struct fman_port *port, u32 *offset)
{
if (port->buffer_offsets.hash_result_offset == ILLEGAL_BASE)
return -EINVAL;
*offset = port->buffer_offsets.hash_result_offset;
return 0;
}
EXPORT_SYMBOL(fman_port_get_hash_result_offset);
static int fman_port_probe(struct platform_device *of_dev)
{
struct fman_port *port;

2
drivers/net/ethernet/freescale/fman/fman_port.h
View File

@ -151,6 +151,8 @@ int fman_port_enable(struct fman_port *port);
u32 fman_port_get_qman_channel_id(struct fman_port *port);
int fman_port_get_hash_result_offset(struct fman_port *port, u32 *offset);
struct fman_port *fman_port_bind(struct device *dev);
#endif /* __FMAN_PORT_H */