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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-04 00:04:18 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-04 00:04:18 +0300 |
commit | 5bb053bef82523a8fd78d650bca81c9f114fa276 (patch) | |
tree | 58c2fe47f60bb69230bb05d57a6c9e3f47f7b1fe /drivers/net/ethernet/ti/cpsw.c | |
parent | bb2407a7219760926760f0448fddf00d625e5aec (diff) | |
parent | 159f02977b2feb18a4bece5e586c838a6d26d44b (diff) | |
download | linux-5bb053bef82523a8fd78d650bca81c9f114fa276.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) Support offloading wireless authentication to userspace via
NL80211_CMD_EXTERNAL_AUTH, from Srinivas Dasari.
2) A lot of work on network namespace setup/teardown from Kirill Tkhai.
Setup and cleanup of namespaces now all run asynchronously and thus
performance is significantly increased.
3) Add rx/tx timestamping support to mv88e6xxx driver, from Brandon
Streiff.
4) Support zerocopy on RDS sockets, from Sowmini Varadhan.
5) Use denser instruction encoding in x86 eBPF JIT, from Daniel
Borkmann.
6) Support hw offload of vlan filtering in mvpp2 dreiver, from Maxime
Chevallier.
7) Support grafting of child qdiscs in mlxsw driver, from Nogah
Frankel.
8) Add packet forwarding tests to selftests, from Ido Schimmel.
9) Deal with sub-optimal GSO packets better in BBR congestion control,
from Eric Dumazet.
10) Support 5-tuple hashing in ipv6 multipath routing, from David Ahern.
11) Add path MTU tests to selftests, from Stefano Brivio.
12) Various bits of IPSEC offloading support for mlx5, from Aviad
Yehezkel, Yossi Kuperman, and Saeed Mahameed.
13) Support RSS spreading on ntuple filters in SFC driver, from Edward
Cree.
14) Lots of sockmap work from John Fastabend. Applications can use eBPF
to filter sendmsg and sendpage operations.
15) In-kernel receive TLS support, from Dave Watson.
16) Add XDP support to ixgbevf, this is significant because it should
allow optimized XDP usage in various cloud environments. From Tony
Nguyen.
17) Add new Intel E800 series "ice" ethernet driver, from Anirudh
Venkataramanan et al.
18) IP fragmentation match offload support in nfp driver, from Pieter
Jansen van Vuuren.
19) Support XDP redirect in i40e driver, from Björn Töpel.
20) Add BPF_RAW_TRACEPOINT program type for accessing the arguments of
tracepoints in their raw form, from Alexei Starovoitov.
21) Lots of striding RQ improvements to mlx5 driver with many
performance improvements, from Tariq Toukan.
22) Use rhashtable for inet frag reassembly, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1678 commits)
net: mvneta: improve suspend/resume
net: mvneta: split rxq/txq init and txq deinit into SW and HW parts
ipv6: frags: fix /proc/sys/net/ipv6/ip6frag_low_thresh
net: bgmac: Fix endian access in bgmac_dma_tx_ring_free()
net: bgmac: Correctly annotate register space
route: check sysctl_fib_multipath_use_neigh earlier than hash
fix typo in command value in drivers/net/phy/mdio-bitbang.
sky2: Increase D3 delay to sky2 stops working after suspend
net/mlx5e: Set EQE based as default TX interrupt moderation mode
ibmvnic: Disable irqs before exiting reset from closed state
net: sched: do not emit messages while holding spinlock
vlan: also check phy_driver ts_info for vlan's real device
Bluetooth: Mark expected switch fall-throughs
Bluetooth: Set HCI_QUIRK_SIMULTANEOUS_DISCOVERY for BTUSB_QCA_ROME
Bluetooth: btrsi: remove unused including <linux/version.h>
Bluetooth: hci_bcm: Remove DMI quirk for the MINIX Z83-4
sh_eth: kill useless check in __sh_eth_get_regs()
sh_eth: add sh_eth_cpu_data::no_xdfar flag
ipv6: factorize sk_wmem_alloc updates done by __ip6_append_data()
ipv4: factorize sk_wmem_alloc updates done by __ip_append_data()
...
Diffstat (limited to 'drivers/net/ethernet/ti/cpsw.c')
-rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 67 |
1 files changed, 64 insertions, 3 deletions
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index b2b30c9df037..1b4af54a4968 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -120,14 +120,18 @@ do { \ #define CPDMA_RXCP 0x60 #define CPSW_POLL_WEIGHT 64 +#define CPSW_RX_VLAN_ENCAP_HDR_SIZE 4 #define CPSW_MIN_PACKET_SIZE (VLAN_ETH_ZLEN) -#define CPSW_MAX_PACKET_SIZE (VLAN_ETH_FRAME_LEN + ETH_FCS_LEN) +#define CPSW_MAX_PACKET_SIZE (VLAN_ETH_FRAME_LEN +\ + ETH_FCS_LEN +\ + CPSW_RX_VLAN_ENCAP_HDR_SIZE) #define RX_PRIORITY_MAPPING 0x76543210 #define TX_PRIORITY_MAPPING 0x33221100 #define CPDMA_TX_PRIORITY_MAP 0x01234567 #define CPSW_VLAN_AWARE BIT(1) +#define CPSW_RX_VLAN_ENCAP BIT(2) #define CPSW_ALE_VLAN_AWARE 1 #define CPSW_FIFO_NORMAL_MODE (0 << 16) @@ -148,6 +152,18 @@ do { \ #define CPSW_MAX_QUEUES 8 #define CPSW_CPDMA_DESCS_POOL_SIZE_DEFAULT 256 +#define CPSW_RX_VLAN_ENCAP_HDR_PRIO_SHIFT 29 +#define CPSW_RX_VLAN_ENCAP_HDR_PRIO_MSK GENMASK(2, 0) +#define CPSW_RX_VLAN_ENCAP_HDR_VID_SHIFT 16 +#define CPSW_RX_VLAN_ENCAP_HDR_PKT_TYPE_SHIFT 8 +#define CPSW_RX_VLAN_ENCAP_HDR_PKT_TYPE_MSK GENMASK(1, 0) +enum { + CPSW_RX_VLAN_ENCAP_HDR_PKT_VLAN_TAG = 0, + CPSW_RX_VLAN_ENCAP_HDR_PKT_RESERV, + CPSW_RX_VLAN_ENCAP_HDR_PKT_PRIO_TAG, + CPSW_RX_VLAN_ENCAP_HDR_PKT_UNTAG, +}; + static int debug_level; module_param(debug_level, int, 0); MODULE_PARM_DESC(debug_level, "cpsw debug level (NETIF_MSG bits)"); @@ -718,6 +734,49 @@ static void cpsw_tx_handler(void *token, int len, int status) dev_kfree_skb_any(skb); } +static void cpsw_rx_vlan_encap(struct sk_buff *skb) +{ + struct cpsw_priv *priv = netdev_priv(skb->dev); + struct cpsw_common *cpsw = priv->cpsw; + u32 rx_vlan_encap_hdr = *((u32 *)skb->data); + u16 vtag, vid, prio, pkt_type; + + /* Remove VLAN header encapsulation word */ + skb_pull(skb, CPSW_RX_VLAN_ENCAP_HDR_SIZE); + + pkt_type = (rx_vlan_encap_hdr >> + CPSW_RX_VLAN_ENCAP_HDR_PKT_TYPE_SHIFT) & + CPSW_RX_VLAN_ENCAP_HDR_PKT_TYPE_MSK; + /* Ignore unknown & Priority-tagged packets*/ + if (pkt_type == CPSW_RX_VLAN_ENCAP_HDR_PKT_RESERV || + pkt_type == CPSW_RX_VLAN_ENCAP_HDR_PKT_PRIO_TAG) + return; + + vid = (rx_vlan_encap_hdr >> + CPSW_RX_VLAN_ENCAP_HDR_VID_SHIFT) & + VLAN_VID_MASK; + /* Ignore vid 0 and pass packet as is */ + if (!vid) + return; + /* Ignore default vlans in dual mac mode */ + if (cpsw->data.dual_emac && + vid == cpsw->slaves[priv->emac_port].port_vlan) + return; + + prio = (rx_vlan_encap_hdr >> + CPSW_RX_VLAN_ENCAP_HDR_PRIO_SHIFT) & + CPSW_RX_VLAN_ENCAP_HDR_PRIO_MSK; + + vtag = (prio << VLAN_PRIO_SHIFT) | vid; + __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vtag); + + /* strip vlan tag for VLAN-tagged packet */ + if (pkt_type == CPSW_RX_VLAN_ENCAP_HDR_PKT_VLAN_TAG) { + memmove(skb->data + VLAN_HLEN, skb->data, 2 * ETH_ALEN); + skb_pull(skb, VLAN_HLEN); + } +} + static void cpsw_rx_handler(void *token, int len, int status) { struct cpdma_chan *ch; @@ -752,6 +811,8 @@ static void cpsw_rx_handler(void *token, int len, int status) if (new_skb) { skb_copy_queue_mapping(new_skb, skb); skb_put(skb, len); + if (status & CPDMA_RX_VLAN_ENCAP) + cpsw_rx_vlan_encap(skb); cpts_rx_timestamp(cpsw->cpts, skb); skb->protocol = eth_type_trans(skb, ndev); netif_receive_skb(skb); @@ -1407,7 +1468,7 @@ static void cpsw_init_host_port(struct cpsw_priv *priv) cpsw_ale_control_set(cpsw->ale, HOST_PORT_NUM, ALE_VLAN_AWARE, CPSW_ALE_VLAN_AWARE); control_reg = readl(&cpsw->regs->control); - control_reg |= CPSW_VLAN_AWARE; + control_reg |= CPSW_VLAN_AWARE | CPSW_RX_VLAN_ENCAP; writel(control_reg, &cpsw->regs->control); fifo_mode = (cpsw->data.dual_emac) ? CPSW_FIFO_DUAL_MAC_MODE : CPSW_FIFO_NORMAL_MODE; @@ -3123,7 +3184,7 @@ static int cpsw_probe(struct platform_device *pdev) cpsw->quirk_irq = true; } - ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; + ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_RX; ndev->netdev_ops = &cpsw_netdev_ops; ndev->ethtool_ops = &cpsw_ethtool_ops; |