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net: pass net_device argument to the eth_get_headlen 

Update all users of eth_get_headlen to pass network device, fetch
network namespace from it and pass it down to the flow dissector.
This commit is a noop until administrator inserts BPF flow dissector
program.

Cc: Maxim Krasnyansky <maxk@qti.qualcomm.com>
Cc: Saeed Mahameed <saeedm@mellanox.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Cc: intel-wired-lan@lists.osuosl.org
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Cc: Salil Mehta <salil.mehta@huawei.com>
Cc: Michael Chan <michael.chan@broadcom.com>
Cc: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Stanislav Fomichev 2019-04-22 08:55:48 -07:00 committed by Daniel Borkmann
parent 9b52e3f267
commit c43f1255b8
16 changed files with 22 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/aquantia/atlantic/aq_ring.c
View File

@ -354,7 +354,8 @@ int aq_ring_rx_clean(struct aq_ring_s *self,
hdr_len = buff->len;
if (hdr_len > AQ_CFG_RX_HDR_SIZE)
hdr_len = eth_get_headlen(aq_buf_vaddr(&buff->rxdata),
hdr_len = eth_get_headlen(skb->dev,
aq_buf_vaddr(&buff->rxdata),
AQ_CFG_RX_HDR_SIZE);
memcpy(__skb_put(skb, hdr_len), aq_buf_vaddr(&buff->rxdata),

2
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -899,7 +899,7 @@ static struct sk_buff *bnxt_rx_page_skb(struct bnxt *bp,
DMA_ATTR_WEAK_ORDERING);
if (unlikely(!payload))
payload = eth_get_headlen(data_ptr, len);
payload = eth_get_headlen(bp->dev, data_ptr, len);
skb = napi_alloc_skb(&rxr->bnapi->napi, payload);
if (!skb) {

2
drivers/net/ethernet/hisilicon/hns/hns_enet.c
View File

@ -598,7 +598,7 @@ static int hns_nic_poll_rx_skb(struct hns_nic_ring_data *ring_data,
} else {
ring->stats.seg_pkt_cnt++;
pull_len = eth_get_headlen(va, HNS_RX_HEAD_SIZE);
pull_len = eth_get_headlen(ndev, va, HNS_RX_HEAD_SIZE);
memcpy(__skb_put(skb, pull_len), va,
ALIGN(pull_len, sizeof(long)));

2
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
View File

@ -2580,7 +2580,7 @@ static int hns3_alloc_skb(struct hns3_enet_ring *ring, int length,
ring->stats.seg_pkt_cnt++;
u64_stats_update_end(&ring->syncp);
ring->pull_len = eth_get_headlen(va, HNS3_RX_HEAD_SIZE);
ring->pull_len = eth_get_headlen(netdev, va, HNS3_RX_HEAD_SIZE);
__skb_put(skb, ring->pull_len);
hns3_nic_reuse_page(skb, ring->frag_num++, ring, ring->pull_len,
desc_cb);

2
drivers/net/ethernet/intel/fm10k/fm10k_main.c
View File

@ -280,7 +280,7 @@ static bool fm10k_add_rx_frag(struct fm10k_rx_buffer *rx_buffer,
/* we need the header to contain the greater of either ETH_HLEN or
* 60 bytes if the skb->len is less than 60 for skb_pad.
*/
pull_len = eth_get_headlen(va, FM10K_RX_HDR_LEN);
pull_len = eth_get_headlen(skb->dev, va, FM10K_RX_HDR_LEN);
/* align pull length to size of long to optimize memcpy performance */
memcpy(__skb_put(skb, pull_len), va, ALIGN(pull_len, sizeof(long)));

3
drivers/net/ethernet/intel/i40e/i40e_txrx.c
View File

@ -2035,7 +2035,8 @@ static struct sk_buff *i40e_construct_skb(struct i40e_ring *rx_ring,
/* Determine available headroom for copy */
headlen = size;
if (headlen > I40E_RX_HDR_SIZE)
headlen = eth_get_headlen(xdp->data, I40E_RX_HDR_SIZE);
headlen = eth_get_headlen(skb->dev, xdp->data,
I40E_RX_HDR_SIZE);
/* align pull length to size of long to optimize memcpy performance */
memcpy(__skb_put(skb, headlen), xdp->data,

2
drivers/net/ethernet/intel/iavf/iavf_txrx.c
View File

@ -1315,7 +1315,7 @@ static struct sk_buff *iavf_construct_skb(struct iavf_ring *rx_ring,
/* Determine available headroom for copy */
headlen = size;
if (headlen > IAVF_RX_HDR_SIZE)
headlen = eth_get_headlen(va, IAVF_RX_HDR_SIZE);
headlen = eth_get_headlen(skb->dev, va, IAVF_RX_HDR_SIZE);
/* align pull length to size of long to optimize memcpy performance */
memcpy(__skb_put(skb, headlen), va, ALIGN(headlen, sizeof(long)));

2
drivers/net/ethernet/intel/ice/ice_txrx.c
View File

@ -699,7 +699,7 @@ ice_construct_skb(struct ice_ring *rx_ring, struct ice_rx_buf *rx_buf,
/* Determine available headroom for copy */
headlen = size;
if (headlen > ICE_RX_HDR_SIZE)
headlen = eth_get_headlen(va, ICE_RX_HDR_SIZE);
headlen = eth_get_headlen(skb->dev, va, ICE_RX_HDR_SIZE);
/* align pull length to size of long to optimize memcpy performance */
memcpy(__skb_put(skb, headlen), va, ALIGN(headlen, sizeof(long)));

2
drivers/net/ethernet/intel/igb/igb_main.c
View File

@ -8051,7 +8051,7 @@ static struct sk_buff *igb_construct_skb(struct igb_ring *rx_ring,
/* Determine available headroom for copy */
headlen = size;
if (headlen > IGB_RX_HDR_LEN)
headlen = eth_get_headlen(va, IGB_RX_HDR_LEN);
headlen = eth_get_headlen(skb->dev, va, IGB_RX_HDR_LEN);
/* align pull length to size of long to optimize memcpy performance */
memcpy(__skb_put(skb, headlen), va, ALIGN(headlen, sizeof(long)));

2
drivers/net/ethernet/intel/igc/igc_main.c
View File

@ -1199,7 +1199,7 @@ static struct sk_buff *igc_construct_skb(struct igc_ring *rx_ring,
/* Determine available headroom for copy */
headlen = size;
if (headlen > IGC_RX_HDR_LEN)
headlen = eth_get_headlen(va, IGC_RX_HDR_LEN);
headlen = eth_get_headlen(skb->dev, va, IGC_RX_HDR_LEN);
/* align pull length to size of long to optimize memcpy performance */
memcpy(__skb_put(skb, headlen), va, ALIGN(headlen, sizeof(long)));

2
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -1800,7 +1800,7 @@ static void ixgbe_pull_tail(struct ixgbe_ring *rx_ring,
* we need the header to contain the greater of either ETH_HLEN or
* 60 bytes if the skb->len is less than 60 for skb_pad.
*/
pull_len = eth_get_headlen(va, IXGBE_RX_HDR_SIZE);
pull_len = eth_get_headlen(skb->dev, va, IXGBE_RX_HDR_SIZE);
/* align pull length to size of long to optimize memcpy performance */
skb_copy_to_linear_data(skb, va, ALIGN(pull_len, sizeof(long)));

3
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
View File

@ -895,7 +895,8 @@ struct sk_buff *ixgbevf_construct_skb(struct ixgbevf_ring *rx_ring,
/* Determine available headroom for copy */
headlen = size;
if (headlen > IXGBEVF_RX_HDR_SIZE)
headlen = eth_get_headlen(xdp->data, IXGBEVF_RX_HDR_SIZE);
headlen = eth_get_headlen(skb->dev, xdp->data,
IXGBEVF_RX_HDR_SIZE);
/* align pull length to size of long to optimize memcpy performance */
memcpy(__skb_put(skb, headlen), xdp->data,

2
drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
View File

@ -163,7 +163,7 @@ static inline u16 mlx5e_calc_min_inline(enum mlx5_inline_modes mode,
case MLX5_INLINE_MODE_NONE:
return 0;
case MLX5_INLINE_MODE_TCP_UDP:
hlen = eth_get_headlen(skb->data, skb_headlen(skb));
hlen = eth_get_headlen(skb->dev, skb->data, skb_headlen(skb));
if (hlen == ETH_HLEN && !skb_vlan_tag_present(skb))
hlen += VLAN_HLEN;
break;

3
drivers/net/tun.c
View File

@ -1965,7 +1965,8 @@ drop:
if (frags) {
/* Exercise flow dissector code path. */
u32 headlen = eth_get_headlen(skb->data, skb_headlen(skb));
u32 headlen = eth_get_headlen(tun->dev, skb->data,
skb_headlen(skb));
if (unlikely(headlen > skb_headlen(skb))) {
this_cpu_inc(tun->pcpu_stats->rx_dropped);

2
include/linux/etherdevice.h
View File

@ -33,7 +33,7 @@ struct device;
int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr);
unsigned char *arch_get_platform_mac_address(void);
int nvmem_get_mac_address(struct device *dev, void *addrbuf);
u32 eth_get_headlen(void *data, unsigned int max_len);
u32 eth_get_headlen(const struct net_device *dev, void *data, unsigned int len);
__be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev);
extern const struct header_ops eth_header_ops;

5
net/ethernet/eth.c
View File

@ -119,13 +119,14 @@ EXPORT_SYMBOL(eth_header);
/**
* eth_get_headlen - determine the length of header for an ethernet frame
* @dev: pointer to network device
* @data: pointer to start of frame
* @len: total length of frame
*
* Make a best effort attempt to pull the length for all of the headers for
* a given frame in a linear buffer.
*/
u32 eth_get_headlen(void *data, unsigned int len)
u32 eth_get_headlen(const struct net_device *dev, void *data, unsigned int len)
{
const unsigned int flags = FLOW_DISSECTOR_F_PARSE_1ST_FRAG;
const struct ethhdr *eth = (const struct ethhdr *)data;
@ -136,7 +137,7 @@ u32 eth_get_headlen(void *data, unsigned int len)
return len;
/* parse any remaining L2/L3 headers, check for L4 */
if (!skb_flow_dissect_flow_keys_basic(NULL, NULL, &keys, data,
if (!skb_flow_dissect_flow_keys_basic(dev_net(dev), NULL, &keys, data,
eth->h_proto, sizeof(*eth),
len, flags))
return max_t(u32, keys.control.thoff, sizeof(*eth));