#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;
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, \
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(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)