diff options
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.h | 151 |
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) |