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authorLinus Torvalds <torvalds@linux-foundation.org>2021-07-01 01:51:09 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-07-01 01:51:09 +0300
commitdbe69e43372212527abf48609aba7fc39a6daa27 (patch)
tree96cfafdf70f5325ceeac1054daf7deca339c9730 /drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
parenta6eaf3850cb171c328a8b0db6d3c79286a1eba9d (diff)
parentb6df00789e2831fff7a2c65aa7164b2a4dcbe599 (diff)
downloadlinux-dbe69e43372212527abf48609aba7fc39a6daa27.tar.xz
Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "Core: - BPF: - add syscall program type and libbpf support for generating instructions and bindings for in-kernel BPF loaders (BPF loaders for BPF), this is a stepping stone for signed BPF programs - infrastructure to migrate TCP child sockets from one listener to another in the same reuseport group/map to improve flexibility of service hand-off/restart - add broadcast support to XDP redirect - allow bypass of the lockless qdisc to improving performance (for pktgen: +23% with one thread, +44% with 2 threads) - add a simpler version of "DO_ONCE()" which does not require jump labels, intended for slow-path usage - virtio/vsock: introduce SOCK_SEQPACKET support - add getsocketopt to retrieve netns cookie - ip: treat lowest address of a IPv4 subnet as ordinary unicast address allowing reclaiming of precious IPv4 addresses - ipv6: use prandom_u32() for ID generation - ip: add support for more flexible field selection for hashing across multi-path routes (w/ offload to mlxsw) - icmp: add support for extended RFC 8335 PROBE (ping) - seg6: add support for SRv6 End.DT46 behavior - mptcp: - DSS checksum support (RFC 8684) to detect middlebox meddling - support Connection-time 'C' flag - time stamping support - sctp: packetization Layer Path MTU Discovery (RFC 8899) - xfrm: speed up state addition with seq set - WiFi: - hidden AP discovery on 6 GHz and other HE 6 GHz improvements - aggregation handling improvements for some drivers - minstrel improvements for no-ack frames - deferred rate control for TXQs to improve reaction times - switch from round robin to virtual time-based airtime scheduler - add trace points: - tcp checksum errors - openvswitch - action execution, upcalls - socket errors via sk_error_report Device APIs: - devlink: add rate API for hierarchical control of max egress rate of virtual devices (VFs, SFs etc.) - don't require RCU read lock to be held around BPF hooks in NAPI context - page_pool: generic buffer recycling New hardware/drivers: - mobile: - iosm: PCIe Driver for Intel M.2 Modem - support for Qualcomm MSM8998 (ipa) - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU) - NXP SJA1110 Automotive Ethernet 10-port switch - Qualcomm QCA8327 switch support (qca8k) - Mikrotik 10/25G NIC (atl1c) Driver changes: - ACPI support for some MDIO, MAC and PHY devices from Marvell and NXP (our first foray into MAC/PHY description via ACPI) - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx - Mellanox/Nvidia NIC (mlx5) - NIC VF offload of L2 bridging - support IRQ distribution to Sub-functions - Marvell (prestera): - add flower and match all - devlink trap - link aggregation - Netronome (nfp): connection tracking offload - Intel 1GE (igc): add AF_XDP support - Marvell DPU (octeontx2): ingress ratelimit offload - Google vNIC (gve): new ring/descriptor format support - Qualcomm mobile (rmnet & ipa): inline checksum offload support - MediaTek WiFi (mt76) - mt7915 MSI support - mt7915 Tx status reporting - mt7915 thermal sensors support - mt7921 decapsulation offload - mt7921 enable runtime pm and deep sleep - Realtek WiFi (rtw88) - beacon filter support - Tx antenna path diversity support - firmware crash information via devcoredump - Qualcomm WiFi (wcn36xx) - Wake-on-WLAN support with magic packets and GTK rekeying - Micrel PHY (ksz886x/ksz8081): add cable test support" * tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits) tcp: change ICSK_CA_PRIV_SIZE definition tcp_yeah: check struct yeah size at compile time gve: DQO: Fix off by one in gve_rx_dqo() stmmac: intel: set PCI_D3hot in suspend stmmac: intel: Enable PHY WOL option in EHL net: stmmac: option to enable PHY WOL with PMT enabled net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del} net: use netdev_info in ndo_dflt_fdb_{add,del} ptp: Set lookup cookie when creating a PTP PPS source. net: sock: add trace for socket errors net: sock: introduce sk_error_report net: dsa: replay the local bridge FDB entries pointing to the bridge dev too net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev net: dsa: include fdb entries pointing to bridge in the host fdb list net: dsa: include bridge addresses which are local in the host fdb list net: dsa: sync static FDB entries on foreign interfaces to hardware net: dsa: install the host MDB and FDB entries in the master's RX filter net: dsa: reference count the FDB addresses at the cross-chip notifier level net: dsa: introduce a separate cross-chip notifier type for host FDBs net: dsa: reference count the MDB entries at the cross-chip notifier level ...
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h')
-rw-r--r--drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h151
1 files changed, 31 insertions, 120 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
index 21329ed3087e..80736e0ec0dc 100644
--- a/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
+++ b/drivers/net/ethernet/intel/ice/ice_lan_tx_rx.h
@@ -161,7 +161,6 @@ struct ice_fltr_desc {
#define ICE_FXD_FLTR_WB_QW1_FAIL_PROF_YES 0x1ULL
struct ice_rx_ptype_decoded {
- u32 ptype:10;
u32 known:1;
u32 outer_ip:1;
u32 outer_ip_ver:2;
@@ -606,9 +605,32 @@ struct ice_tlan_ctx {
u8 int_q_state; /* width not needed - internal - DO NOT WRITE!!! */
};
-/* macro to make the table lines short */
+/* The ice_ptype_lkup table is used to convert from the 10-bit ptype in the
+ * hardware to a bit-field that can be used by SW to more easily determine the
+ * packet type.
+ *
+ * Macros are used to shorten the table lines and make this table human
+ * readable.
+ *
+ * We store the PTYPE in the top byte of the bit field - this is just so that
+ * we can check that the table doesn't have a row missing, as the index into
+ * the table should be the PTYPE.
+ *
+ * Typical work flow:
+ *
+ * IF NOT ice_ptype_lkup[ptype].known
+ * THEN
+ * Packet is unknown
+ * ELSE IF ice_ptype_lkup[ptype].outer_ip == ICE_RX_PTYPE_OUTER_IP
+ * Use the rest of the fields to look at the tunnels, inner protocols, etc
+ * ELSE
+ * Use the enum ice_rx_l2_ptype to decode the packet type
+ * ENDIF
+ */
+
+/* macro to make the table lines short, use explicit indexing with [PTYPE] */
#define ICE_PTT(PTYPE, OUTER_IP, OUTER_IP_VER, OUTER_FRAG, T, TE, TEF, I, PL)\
- { PTYPE, \
+ [PTYPE] = { \
1, \
ICE_RX_PTYPE_OUTER_##OUTER_IP, \
ICE_RX_PTYPE_OUTER_##OUTER_IP_VER, \
@@ -619,18 +641,18 @@ struct ice_tlan_ctx {
ICE_RX_PTYPE_INNER_PROT_##I, \
ICE_RX_PTYPE_PAYLOAD_LAYER_##PL }
-#define ICE_PTT_UNUSED_ENTRY(PTYPE) { PTYPE, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+#define ICE_PTT_UNUSED_ENTRY(PTYPE) [PTYPE] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
/* shorter macros makes the table fit but are terse */
#define ICE_RX_PTYPE_NOF ICE_RX_PTYPE_NOT_FRAG
#define ICE_RX_PTYPE_FRG ICE_RX_PTYPE_FRAG
-/* Lookup table mapping the HW PTYPE to the bit field for decoding */
-static const struct ice_rx_ptype_decoded ice_ptype_lkup[] = {
+/* Lookup table mapping in the 10-bit HW PTYPE to the bit field for decoding */
+static const struct ice_rx_ptype_decoded ice_ptype_lkup[BIT(10)] = {
/* L2 Packet types */
ICE_PTT_UNUSED_ENTRY(0),
ICE_PTT(1, L2, NONE, NOF, NONE, NONE, NOF, NONE, PAY2),
- ICE_PTT(2, L2, NONE, NOF, NONE, NONE, NOF, NONE, NONE),
+ ICE_PTT_UNUSED_ENTRY(2),
ICE_PTT_UNUSED_ENTRY(3),
ICE_PTT_UNUSED_ENTRY(4),
ICE_PTT_UNUSED_ENTRY(5),
@@ -744,7 +766,7 @@ static const struct ice_rx_ptype_decoded ice_ptype_lkup[] = {
/* Non Tunneled IPv6 */
ICE_PTT(88, IP, IPV6, FRG, NONE, NONE, NOF, NONE, PAY3),
ICE_PTT(89, IP, IPV6, NOF, NONE, NONE, NOF, NONE, PAY3),
- ICE_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY3),
+ ICE_PTT(90, IP, IPV6, NOF, NONE, NONE, NOF, UDP, PAY4),
ICE_PTT_UNUSED_ENTRY(91),
ICE_PTT(92, IP, IPV6, NOF, NONE, NONE, NOF, TCP, PAY4),
ICE_PTT(93, IP, IPV6, NOF, NONE, NONE, NOF, SCTP, PAY4),
@@ -832,118 +854,7 @@ static const struct ice_rx_ptype_decoded ice_ptype_lkup[] = {
ICE_PTT(153, IP, IPV6, NOF, IP_GRENAT_MAC_VLAN, IPV6, NOF, ICMP, PAY4),
/* unused entries */
- ICE_PTT_UNUSED_ENTRY(154),
- ICE_PTT_UNUSED_ENTRY(155),
- ICE_PTT_UNUSED_ENTRY(156),
- ICE_PTT_UNUSED_ENTRY(157),
- ICE_PTT_UNUSED_ENTRY(158),
- ICE_PTT_UNUSED_ENTRY(159),
-
- ICE_PTT_UNUSED_ENTRY(160),
- ICE_PTT_UNUSED_ENTRY(161),
- ICE_PTT_UNUSED_ENTRY(162),
- ICE_PTT_UNUSED_ENTRY(163),
- ICE_PTT_UNUSED_ENTRY(164),
- ICE_PTT_UNUSED_ENTRY(165),
- ICE_PTT_UNUSED_ENTRY(166),
- ICE_PTT_UNUSED_ENTRY(167),
- ICE_PTT_UNUSED_ENTRY(168),
- ICE_PTT_UNUSED_ENTRY(169),
-
- ICE_PTT_UNUSED_ENTRY(170),
- ICE_PTT_UNUSED_ENTRY(171),
- ICE_PTT_UNUSED_ENTRY(172),
- ICE_PTT_UNUSED_ENTRY(173),
- ICE_PTT_UNUSED_ENTRY(174),
- ICE_PTT_UNUSED_ENTRY(175),
- ICE_PTT_UNUSED_ENTRY(176),
- ICE_PTT_UNUSED_ENTRY(177),
- ICE_PTT_UNUSED_ENTRY(178),
- ICE_PTT_UNUSED_ENTRY(179),
-
- ICE_PTT_UNUSED_ENTRY(180),
- ICE_PTT_UNUSED_ENTRY(181),
- ICE_PTT_UNUSED_ENTRY(182),
- ICE_PTT_UNUSED_ENTRY(183),
- ICE_PTT_UNUSED_ENTRY(184),
- ICE_PTT_UNUSED_ENTRY(185),
- ICE_PTT_UNUSED_ENTRY(186),
- ICE_PTT_UNUSED_ENTRY(187),
- ICE_PTT_UNUSED_ENTRY(188),
- ICE_PTT_UNUSED_ENTRY(189),
-
- ICE_PTT_UNUSED_ENTRY(190),
- ICE_PTT_UNUSED_ENTRY(191),
- ICE_PTT_UNUSED_ENTRY(192),
- ICE_PTT_UNUSED_ENTRY(193),
- ICE_PTT_UNUSED_ENTRY(194),
- ICE_PTT_UNUSED_ENTRY(195),
- ICE_PTT_UNUSED_ENTRY(196),
- ICE_PTT_UNUSED_ENTRY(197),
- ICE_PTT_UNUSED_ENTRY(198),
- ICE_PTT_UNUSED_ENTRY(199),
-
- ICE_PTT_UNUSED_ENTRY(200),
- ICE_PTT_UNUSED_ENTRY(201),
- ICE_PTT_UNUSED_ENTRY(202),
- ICE_PTT_UNUSED_ENTRY(203),
- ICE_PTT_UNUSED_ENTRY(204),
- ICE_PTT_UNUSED_ENTRY(205),
- ICE_PTT_UNUSED_ENTRY(206),
- ICE_PTT_UNUSED_ENTRY(207),
- ICE_PTT_UNUSED_ENTRY(208),
- ICE_PTT_UNUSED_ENTRY(209),
-
- ICE_PTT_UNUSED_ENTRY(210),
- ICE_PTT_UNUSED_ENTRY(211),
- ICE_PTT_UNUSED_ENTRY(212),
- ICE_PTT_UNUSED_ENTRY(213),
- ICE_PTT_UNUSED_ENTRY(214),
- ICE_PTT_UNUSED_ENTRY(215),
- ICE_PTT_UNUSED_ENTRY(216),
- ICE_PTT_UNUSED_ENTRY(217),
- ICE_PTT_UNUSED_ENTRY(218),
- ICE_PTT_UNUSED_ENTRY(219),
-
- ICE_PTT_UNUSED_ENTRY(220),
- ICE_PTT_UNUSED_ENTRY(221),
- ICE_PTT_UNUSED_ENTRY(222),
- ICE_PTT_UNUSED_ENTRY(223),
- ICE_PTT_UNUSED_ENTRY(224),
- ICE_PTT_UNUSED_ENTRY(225),
- ICE_PTT_UNUSED_ENTRY(226),
- ICE_PTT_UNUSED_ENTRY(227),
- ICE_PTT_UNUSED_ENTRY(228),
- ICE_PTT_UNUSED_ENTRY(229),
-
- ICE_PTT_UNUSED_ENTRY(230),
- ICE_PTT_UNUSED_ENTRY(231),
- ICE_PTT_UNUSED_ENTRY(232),
- ICE_PTT_UNUSED_ENTRY(233),
- ICE_PTT_UNUSED_ENTRY(234),
- ICE_PTT_UNUSED_ENTRY(235),
- ICE_PTT_UNUSED_ENTRY(236),
- ICE_PTT_UNUSED_ENTRY(237),
- ICE_PTT_UNUSED_ENTRY(238),
- ICE_PTT_UNUSED_ENTRY(239),
-
- ICE_PTT_UNUSED_ENTRY(240),
- ICE_PTT_UNUSED_ENTRY(241),
- ICE_PTT_UNUSED_ENTRY(242),
- ICE_PTT_UNUSED_ENTRY(243),
- ICE_PTT_UNUSED_ENTRY(244),
- ICE_PTT_UNUSED_ENTRY(245),
- ICE_PTT_UNUSED_ENTRY(246),
- ICE_PTT_UNUSED_ENTRY(247),
- ICE_PTT_UNUSED_ENTRY(248),
- ICE_PTT_UNUSED_ENTRY(249),
-
- ICE_PTT_UNUSED_ENTRY(250),
- ICE_PTT_UNUSED_ENTRY(251),
- ICE_PTT_UNUSED_ENTRY(252),
- ICE_PTT_UNUSED_ENTRY(253),
- ICE_PTT_UNUSED_ENTRY(254),
- ICE_PTT_UNUSED_ENTRY(255),
+ [154 ... 1023] = { 0, 0, 0, 0, 0, 0, 0, 0, 0 }
};
static inline struct ice_rx_ptype_decoded ice_decode_rx_desc_ptype(u16 ptype)