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Date: Wed, 6 Apr 2011 23:07:43 -0500
From: Ajit Khaparde <ajit.khaparde@...lex.com>
To: <netdev@...r.kernel.org>
CC: Eric Dumazet <eric.dumazet@...il.com>
Subject: [PATCH net-next 1/5] be2net: add rxhash support
Add rxhash support,
Based on initial work by Eric Dumazet.
Cc: Eric Dumazet <eric.dumazet@...il.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@...lex.com>
---
drivers/net/benet/be.h | 5 +++++
drivers/net/benet/be_ethtool.c | 13 +++++++++++++
drivers/net/benet/be_main.c | 17 ++++++++++++-----
3 files changed, 30 insertions(+), 5 deletions(-)
diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
index 0899d91..8941b98 100644
--- a/drivers/net/benet/be.h
+++ b/drivers/net/benet/be.h
@@ -485,6 +485,11 @@ static inline void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac)
memcpy(mac, adapter->netdev->dev_addr, 3);
}
+static inline bool be_multi_rxq(struct be_adapter *adapter)
+{
+ return (adapter->num_rx_qs > 1);
+}
+
extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
u16 num_popped);
extern void be_link_status_update(struct be_adapter *adapter, bool link_up);
diff --git a/drivers/net/benet/be_ethtool.c b/drivers/net/benet/be_ethtool.c
index a665697..1565c81 100644
--- a/drivers/net/benet/be_ethtool.c
+++ b/drivers/net/benet/be_ethtool.c
@@ -735,6 +735,18 @@ be_read_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom,
return status;
}
+static int be_set_flags(struct net_device *netdev, u32 data)
+{
+ struct be_adapter *adapter = netdev_priv(netdev);
+ int rc = -1;
+
+ if (be_multi_rxq(adapter))
+ rc = ethtool_op_set_flags(netdev, data, ETH_FLAG_RXHASH |
+ ETH_FLAG_TXVLAN | ETH_FLAG_RXVLAN);
+
+ return rc;
+}
+
const struct ethtool_ops be_ethtool_ops = {
.get_settings = be_get_settings,
.get_drvinfo = be_get_drvinfo,
@@ -764,4 +776,5 @@ const struct ethtool_ops be_ethtool_ops = {
.get_regs = be_get_regs,
.flash_device = be_do_flash,
.self_test = be_self_test,
+ .set_flags = be_set_flags,
};
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index a24fb45..4910055 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -116,11 +116,6 @@ static char *ue_status_hi_desc[] = {
"Unknown"
};
-static inline bool be_multi_rxq(struct be_adapter *adapter)
-{
- return (adapter->num_rx_qs > 1);
-}
-
static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
{
struct be_dma_mem *mem = &q->dma_mem;
@@ -1012,6 +1007,9 @@ static void be_rx_compl_process(struct be_adapter *adapter,
skb->truesize = skb->len + sizeof(struct sk_buff);
skb->protocol = eth_type_trans(skb, adapter->netdev);
+ if (adapter->netdev->features & NETIF_F_RXHASH)
+ skb->rxhash = rxcp->rss_hash;
+
if (unlikely(rxcp->vlanf)) {
if (!adapter->vlan_grp || adapter->vlans_added == 0) {
@@ -1072,6 +1070,8 @@ static void be_rx_compl_process_gro(struct be_adapter *adapter,
skb->data_len = rxcp->pkt_size;
skb->truesize += rxcp->pkt_size;
skb->ip_summed = CHECKSUM_UNNECESSARY;
+ if (adapter->netdev->features & NETIF_F_RXHASH)
+ skb->rxhash = rxcp->rss_hash;
if (likely(!rxcp->vlanf))
napi_gro_frags(&eq_obj->napi);
@@ -1101,6 +1101,8 @@ static void be_parse_rx_compl_v1(struct be_adapter *adapter,
AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
rxcp->pkt_type =
AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
+ rxcp->rss_hash =
+ AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, rxcp);
if (rxcp->vlanf) {
rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
compl);
@@ -1131,6 +1133,8 @@ static void be_parse_rx_compl_v0(struct be_adapter *adapter,
AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
rxcp->pkt_type =
AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
+ rxcp->rss_hash =
+ AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, rxcp);
if (rxcp->vlanf) {
rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
compl);
@@ -2614,6 +2618,9 @@ static void be_netdev_init(struct net_device *netdev)
NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
NETIF_F_GRO | NETIF_F_TSO6;
+ if (be_multi_rxq(adapter))
+ netdev->features |= NETIF_F_RXHASH;
+
netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO |
NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
--
1.7.1
--
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