filter_i40e.lua

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---------------------------------
--- @file filter_i40e.lua
--- @brief Filter for I40E ...
--- @todo TODO docu
---------------------------------

local mod = {}

local dpdkc     = require "dpdkc"
local device    = require "device"
local ffi       = require "ffi"
local dpdk      = require "dpdk"
local dpdkc     = require "dpdkc"

ffi.cdef[[
enum i40e_status_code {
    I40E_SUCCESS                = 0,
    I40E_ERR_NVM                = -1,
    I40E_ERR_NVM_CHECKSUM           = -2,
    I40E_ERR_PHY                = -3,
    I40E_ERR_CONFIG             = -4,
    I40E_ERR_PARAM              = -5,
    I40E_ERR_MAC_TYPE           = -6,
    I40E_ERR_UNKNOWN_PHY            = -7,
    I40E_ERR_LINK_SETUP         = -8,
    I40E_ERR_ADAPTER_STOPPED        = -9,
    I40E_ERR_INVALID_MAC_ADDR       = -10,
    I40E_ERR_DEVICE_NOT_SUPPORTED       = -11,
    I40E_ERR_MASTER_REQUESTS_PENDING    = -12,
    I40E_ERR_INVALID_LINK_SETTINGS      = -13,
    I40E_ERR_AUTONEG_NOT_COMPLETE       = -14,
    I40E_ERR_RESET_FAILED           = -15,
    I40E_ERR_SWFW_SYNC          = -16,
    I40E_ERR_NO_AVAILABLE_VSI       = -17,
    I40E_ERR_NO_MEMORY          = -18,
    I40E_ERR_BAD_PTR            = -19,
    I40E_ERR_RING_FULL          = -20,
    I40E_ERR_INVALID_PD_ID          = -21,
    I40E_ERR_INVALID_QP_ID          = -22,
    I40E_ERR_INVALID_CQ_ID          = -23,
    I40E_ERR_INVALID_CEQ_ID         = -24,
    I40E_ERR_INVALID_AEQ_ID         = -25,
    I40E_ERR_INVALID_SIZE           = -26,
    I40E_ERR_INVALID_ARP_INDEX      = -27,
    I40E_ERR_INVALID_FPM_FUNC_ID        = -28,
    I40E_ERR_QP_INVALID_MSG_SIZE        = -29,
    I40E_ERR_QP_TOOMANY_WRS_POSTED      = -30,
    I40E_ERR_INVALID_FRAG_COUNT     = -31,
    I40E_ERR_QUEUE_EMPTY            = -32,
    I40E_ERR_INVALID_ALIGNMENT      = -33,
    I40E_ERR_FLUSHED_QUEUE          = -34,
    I40E_ERR_INVALID_PUSH_PAGE_INDEX    = -35,
    I40E_ERR_INVALID_IMM_DATA_SIZE      = -36,
    I40E_ERR_TIMEOUT            = -37,
    I40E_ERR_OPCODE_MISMATCH        = -38,
    I40E_ERR_CQP_COMPL_ERROR        = -39,
    I40E_ERR_INVALID_VF_ID          = -40,
    I40E_ERR_INVALID_HMCFN_ID       = -41,
    I40E_ERR_BACKING_PAGE_ERROR     = -42,
    I40E_ERR_NO_PBLCHUNKS_AVAILABLE     = -43,
    I40E_ERR_INVALID_PBLE_INDEX     = -44,
    I40E_ERR_INVALID_SD_INDEX       = -45,
    I40E_ERR_INVALID_PAGE_DESC_INDEX    = -46,
    I40E_ERR_INVALID_SD_TYPE        = -47,
    I40E_ERR_MEMCPY_FAILED          = -48,
    I40E_ERR_INVALID_HMC_OBJ_INDEX      = -49,
    I40E_ERR_INVALID_HMC_OBJ_COUNT      = -50,
    I40E_ERR_INVALID_SRQ_ARM_LIMIT      = -51,
    I40E_ERR_SRQ_ENABLED            = -52,
    I40E_ERR_ADMIN_QUEUE_ERROR      = -53,
    I40E_ERR_ADMIN_QUEUE_TIMEOUT        = -54,
    I40E_ERR_BUF_TOO_SHORT          = -55,
    I40E_ERR_ADMIN_QUEUE_FULL       = -56,
    I40E_ERR_ADMIN_QUEUE_NO_WORK        = -57,
    I40E_ERR_BAD_IWARP_CQE          = -58,
    I40E_ERR_NVM_BLANK_MODE         = -59,
    I40E_ERR_NOT_IMPLEMENTED        = -60,
    I40E_ERR_PE_DOORBELL_NOT_ENABLED    = -61,
    I40E_ERR_DIAG_TEST_FAILED       = -62,
    I40E_ERR_NOT_READY          = -63,
    I40E_NOT_SUPPORTED          = -64,
    I40E_ERR_FIRMWARE_API_VERSION       = -65,
};

struct i40e_control_filter_stats {
    uint16_t mac_etype_used;   /* Used perfect match MAC/EtherType filters */
    uint16_t etype_used;       /* Used perfect EtherType filters */
    uint16_t mac_etype_free;   /* Un-used perfect match MAC/EtherType filters */
    uint16_t etype_free;       /* Un-used perfect EtherType filters */
};

enum i40e_status_code i40e_aq_add_rem_control_packet_filter(void *hw,
    uint8_t *mac_addr, uint16_t ethtype, uint16_t flags,
    uint16_t vsi_seid, uint16_t queue, bool is_add,
    struct i40e_control_filter_stats *stats,
    struct i40e_asq_cmd_details *cmd_details);
]]

local C = ffi.C

-- FIXME: use DPDK 2.0 filters here
function mod.l2Filter(dev, etype, queue)
    if queue == -1 then
        queue = 511
    end
    local i40eDev = dpdkc.get_i40e_dev(dev.id)
    local vsiSeid = dpdkc.get_i40e_vsi_seid(dev.id)
    assert(C.i40e_aq_add_rem_control_packet_filter(i40eDev, nil, etype, 1 + 4, vsiSeid, queue, true, null, null) == 0)
end

return mod