// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018, Intel Corporation. */

#include "ice_common.h"
#include "ice_lib.h"
#include "ice_sched.h"
#include "ice_adminq_cmd.h"
#include "ice_flow.h"

#define ICE_PF_RESET_WAIT_COUNT 300

/**
 * ice_set_mac_type - Sets MAC type
 * @hw: pointer to the HW structure
 *
 * This function sets the MAC type of the adapter based on the
 * vendor ID and device ID stored in the HW structure.
 */
static enum ice_status ice_set_mac_type(struct ice_hw *hw)
{
        if (hw->vendor_id != PCI_VENDOR_ID_INTEL)
                return ICE_ERR_DEVICE_NOT_SUPPORTED;

        switch (hw->device_id) {
        case ICE_DEV_ID_E810C_BACKPLANE:
        case ICE_DEV_ID_E810C_QSFP:
        case ICE_DEV_ID_E810C_SFP:
        case ICE_DEV_ID_E810_XXV_SFP:
                hw->mac_type = ICE_MAC_E810;
                break;
        case ICE_DEV_ID_E823C_10G_BASE_T:
        case ICE_DEV_ID_E823C_BACKPLANE:
        case ICE_DEV_ID_E823C_QSFP:
        case ICE_DEV_ID_E823C_SFP:
        case ICE_DEV_ID_E823C_SGMII:
        case ICE_DEV_ID_E822C_10G_BASE_T:
        case ICE_DEV_ID_E822C_BACKPLANE:
        case ICE_DEV_ID_E822C_QSFP:
        case ICE_DEV_ID_E822C_SFP:
        case ICE_DEV_ID_E822C_SGMII:
        case ICE_DEV_ID_E822L_10G_BASE_T:
        case ICE_DEV_ID_E822L_BACKPLANE:
        case ICE_DEV_ID_E822L_SFP:
        case ICE_DEV_ID_E822L_SGMII:
        case ICE_DEV_ID_E823L_10G_BASE_T:
        case ICE_DEV_ID_E823L_1GBE:
        case ICE_DEV_ID_E823L_BACKPLANE:
        case ICE_DEV_ID_E823L_QSFP:
        case ICE_DEV_ID_E823L_SFP:
                hw->mac_type = ICE_MAC_GENERIC;
                break;
        default:
                hw->mac_type = ICE_MAC_UNKNOWN;
                break;
        }

        ice_debug(hw, ICE_DBG_INIT, "mac_type: %d\n", hw->mac_type);
        return 0;
}

/**
 * ice_is_e810
 * @hw: pointer to the hardware structure
 *
 * returns true if the device is E810 based, false if not.
 */
bool ice_is_e810(struct ice_hw *hw)
{
        return hw->mac_type == ICE_MAC_E810;
}

/**
 * ice_clear_pf_cfg - Clear PF configuration
 * @hw: pointer to the hardware structure
 *
 * Clears any existing PF configuration (VSIs, VSI lists, switch rules, port
 * configuration, flow director filters, etc.).
 */
enum ice_status ice_clear_pf_cfg(struct ice_hw *hw)
{
        struct ice_aq_desc desc;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_clear_pf_cfg);

        return ice_aq_send_cmd(hw, &desc, NULL, 0, NULL);
}

/**
 * ice_aq_manage_mac_read - manage MAC address read command
 * @hw: pointer to the HW struct
 * @buf: a virtual buffer to hold the manage MAC read response
 * @buf_size: Size of the virtual buffer
 * @cd: pointer to command details structure or NULL
 *
 * This function is used to return per PF station MAC address (0x0107).
 * NOTE: Upon successful completion of this command, MAC address information
 * is returned in user specified buffer. Please interpret user specified
 * buffer as "manage_mac_read" response.
 * Response such as various MAC addresses are stored in HW struct (port.mac)
 * ice_discover_dev_caps is expected to be called before this function is
 * called.
 */
static enum ice_status
ice_aq_manage_mac_read(struct ice_hw *hw, void *buf, u16 buf_size,
                       struct ice_sq_cd *cd)
{
        struct ice_aqc_manage_mac_read_resp *resp;
        struct ice_aqc_manage_mac_read *cmd;
        struct ice_aq_desc desc;
        enum ice_status status;
        u16 flags;
        u8 i;

        cmd = &desc.params.mac_read;

        if (buf_size < sizeof(*resp))
                return ICE_ERR_BUF_TOO_SHORT;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_manage_mac_read);

        status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
        if (status)
                return status;

        resp = buf;
        flags = le16_to_cpu(cmd->flags) & ICE_AQC_MAN_MAC_READ_M;

        if (!(flags & ICE_AQC_MAN_MAC_LAN_ADDR_VALID)) {
                ice_debug(hw, ICE_DBG_LAN, "got invalid MAC address\n");
                return ICE_ERR_CFG;
        }

        /* A single port can report up to two (LAN and WoL) addresses */
        for (i = 0; i < cmd->num_addr; i++)
                if (resp[i].addr_type == ICE_AQC_MAN_MAC_ADDR_TYPE_LAN) {
                        ether_addr_copy(hw->port_info->mac.lan_addr,
                                        resp[i].mac_addr);
                        ether_addr_copy(hw->port_info->mac.perm_addr,
                                        resp[i].mac_addr);
                        break;
                }

        return 0;
}

/**
 * ice_aq_get_phy_caps - returns PHY capabilities
 * @pi: port information structure
 * @qual_mods: report qualified modules
 * @report_mode: report mode capabilities
 * @pcaps: structure for PHY capabilities to be filled
 * @cd: pointer to command details structure or NULL
 *
 * Returns the various PHY capabilities supported on the Port (0x0600)
 */
enum ice_status
ice_aq_get_phy_caps(struct ice_port_info *pi, bool qual_mods, u8 report_mode,
                    struct ice_aqc_get_phy_caps_data *pcaps,
                    struct ice_sq_cd *cd)
{
        struct ice_aqc_get_phy_caps *cmd;
        u16 pcaps_size = sizeof(*pcaps);
        struct ice_aq_desc desc;
        enum ice_status status;
        struct ice_hw *hw;

        cmd = &desc.params.get_phy;

        if (!pcaps || (report_mode & ~ICE_AQC_REPORT_MODE_M) || !pi)
                return ICE_ERR_PARAM;
        hw = pi->hw;

        if (report_mode == ICE_AQC_REPORT_DFLT_CFG &&
            !ice_fw_supports_report_dflt_cfg(hw))
                return ICE_ERR_PARAM;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_phy_caps);

        if (qual_mods)
                cmd->param0 |= cpu_to_le16(ICE_AQC_GET_PHY_RQM);

        cmd->param0 |= cpu_to_le16(report_mode);
        status = ice_aq_send_cmd(hw, &desc, pcaps, pcaps_size, cd);

        ice_debug(hw, ICE_DBG_LINK, "get phy caps - report_mode = 0x%x\n",
                  report_mode);
        ice_debug(hw, ICE_DBG_LINK, "   phy_type_low = 0x%llx\n",
                  (unsigned long long)le64_to_cpu(pcaps->phy_type_low));
        ice_debug(hw, ICE_DBG_LINK, "   phy_type_high = 0x%llx\n",
                  (unsigned long long)le64_to_cpu(pcaps->phy_type_high));
        ice_debug(hw, ICE_DBG_LINK, "   caps = 0x%x\n", pcaps->caps);
        ice_debug(hw, ICE_DBG_LINK, "   low_power_ctrl_an = 0x%x\n",
                  pcaps->low_power_ctrl_an);
        ice_debug(hw, ICE_DBG_LINK, "   eee_cap = 0x%x\n", pcaps->eee_cap);
        ice_debug(hw, ICE_DBG_LINK, "   eeer_value = 0x%x\n",
                  pcaps->eeer_value);
        ice_debug(hw, ICE_DBG_LINK, "   link_fec_options = 0x%x\n",
                  pcaps->link_fec_options);
        ice_debug(hw, ICE_DBG_LINK, "   module_compliance_enforcement = 0x%x\n",
                  pcaps->module_compliance_enforcement);
        ice_debug(hw, ICE_DBG_LINK, "   extended_compliance_code = 0x%x\n",
                  pcaps->extended_compliance_code);
        ice_debug(hw, ICE_DBG_LINK, "   module_type[0] = 0x%x\n",
                  pcaps->module_type[0]);
        ice_debug(hw, ICE_DBG_LINK, "   module_type[1] = 0x%x\n",
                  pcaps->module_type[1]);
        ice_debug(hw, ICE_DBG_LINK, "   module_type[2] = 0x%x\n",
                  pcaps->module_type[2]);

        if (!status && report_mode == ICE_AQC_REPORT_TOPO_CAP_MEDIA) {
                pi->phy.phy_type_low = le64_to_cpu(pcaps->phy_type_low);
                pi->phy.phy_type_high = le64_to_cpu(pcaps->phy_type_high);
                memcpy(pi->phy.link_info.module_type, &pcaps->module_type,
                       sizeof(pi->phy.link_info.module_type));
        }

        return status;
}

/**
 * ice_aq_get_link_topo_handle - get link topology node return status
 * @pi: port information structure
 * @node_type: requested node type
 * @cd: pointer to command details structure or NULL
 *
 * Get link topology node return status for specified node type (0x06E0)
 *
 * Node type cage can be used to determine if cage is present. If AQC
 * returns error (ENOENT), then no cage present. If no cage present, then
 * connection type is backplane or BASE-T.
 */
static enum ice_status
ice_aq_get_link_topo_handle(struct ice_port_info *pi, u8 node_type,
                            struct ice_sq_cd *cd)
{
        struct ice_aqc_get_link_topo *cmd;
        struct ice_aq_desc desc;

        cmd = &desc.params.get_link_topo;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_link_topo);

        cmd->addr.node_type_ctx = (ICE_AQC_LINK_TOPO_NODE_CTX_PORT <<
                                   ICE_AQC_LINK_TOPO_NODE_CTX_S);

        /* set node type */
        cmd->addr.node_type_ctx |= (ICE_AQC_LINK_TOPO_NODE_TYPE_M & node_type);

        return ice_aq_send_cmd(pi->hw, &desc, NULL, 0, cd);
}

/**
 * ice_is_media_cage_present
 * @pi: port information structure
 *
 * Returns true if media cage is present, else false. If no cage, then
 * media type is backplane or BASE-T.
 */
static bool ice_is_media_cage_present(struct ice_port_info *pi)
{
        /* Node type cage can be used to determine if cage is present. If AQC
         * returns error (ENOENT), then no cage present. If no cage present then
         * connection type is backplane or BASE-T.
         */
        return !ice_aq_get_link_topo_handle(pi,
                                            ICE_AQC_LINK_TOPO_NODE_TYPE_CAGE,
                                            NULL);
}

/**
 * ice_get_media_type - Gets media type
 * @pi: port information structure
 */
static enum ice_media_type ice_get_media_type(struct ice_port_info *pi)
{
        struct ice_link_status *hw_link_info;

        if (!pi)
                return ICE_MEDIA_UNKNOWN;

        hw_link_info = &pi->phy.link_info;
        if (hw_link_info->phy_type_low && hw_link_info->phy_type_high)
                /* If more than one media type is selected, report unknown */
                return ICE_MEDIA_UNKNOWN;

        if (hw_link_info->phy_type_low) {
                /* 1G SGMII is a special case where some DA cable PHYs
                 * may show this as an option when it really shouldn't
                 * be since SGMII is meant to be between a MAC and a PHY
                 * in a backplane. Try to detect this case and handle it
                 */
                if (hw_link_info->phy_type_low == ICE_PHY_TYPE_LOW_1G_SGMII &&
                    (hw_link_info->module_type[ICE_AQC_MOD_TYPE_IDENT] ==
                    ICE_AQC_MOD_TYPE_BYTE1_SFP_PLUS_CU_ACTIVE ||
                    hw_link_info->module_type[ICE_AQC_MOD_TYPE_IDENT] ==
                    ICE_AQC_MOD_TYPE_BYTE1_SFP_PLUS_CU_PASSIVE))
                        return ICE_MEDIA_DA;

                switch (hw_link_info->phy_type_low) {
                case ICE_PHY_TYPE_LOW_1000BASE_SX:
                case ICE_PHY_TYPE_LOW_1000BASE_LX:
                case ICE_PHY_TYPE_LOW_10GBASE_SR:
                case ICE_PHY_TYPE_LOW_10GBASE_LR:
                case ICE_PHY_TYPE_LOW_10G_SFI_C2C:
                case ICE_PHY_TYPE_LOW_25GBASE_SR:
                case ICE_PHY_TYPE_LOW_25GBASE_LR:
                case ICE_PHY_TYPE_LOW_40GBASE_SR4:
                case ICE_PHY_TYPE_LOW_40GBASE_LR4:
                case ICE_PHY_TYPE_LOW_50GBASE_SR2:
                case ICE_PHY_TYPE_LOW_50GBASE_LR2:
                case ICE_PHY_TYPE_LOW_50GBASE_SR:
                case ICE_PHY_TYPE_LOW_50GBASE_FR:
                case ICE_PHY_TYPE_LOW_50GBASE_LR:
                case ICE_PHY_TYPE_LOW_100GBASE_SR4:
                case ICE_PHY_TYPE_LOW_100GBASE_LR4:
                case ICE_PHY_TYPE_LOW_100GBASE_SR2:
                case ICE_PHY_TYPE_LOW_100GBASE_DR:
                case ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC:
                case ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC:
                case ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC:
                case ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC:
                case ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC:
                case ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC:
                case ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC:
                case ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC:
                        return ICE_MEDIA_FIBER;
                case ICE_PHY_TYPE_LOW_100BASE_TX:
                case ICE_PHY_TYPE_LOW_1000BASE_T:
                case ICE_PHY_TYPE_LOW_2500BASE_T:
                case ICE_PHY_TYPE_LOW_5GBASE_T:
                case ICE_PHY_TYPE_LOW_10GBASE_T:
                case ICE_PHY_TYPE_LOW_25GBASE_T:
                        return ICE_MEDIA_BASET;
                case ICE_PHY_TYPE_LOW_10G_SFI_DA:
                case ICE_PHY_TYPE_LOW_25GBASE_CR:
                case ICE_PHY_TYPE_LOW_25GBASE_CR_S:
                case ICE_PHY_TYPE_LOW_25GBASE_CR1:
                case ICE_PHY_TYPE_LOW_40GBASE_CR4:
                case ICE_PHY_TYPE_LOW_50GBASE_CR2:
                case ICE_PHY_TYPE_LOW_50GBASE_CP:
                case ICE_PHY_TYPE_LOW_100GBASE_CR4:
                case ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4:
                case ICE_PHY_TYPE_LOW_100GBASE_CP2:
                        return ICE_MEDIA_DA;
                case ICE_PHY_TYPE_LOW_25G_AUI_C2C:
                case ICE_PHY_TYPE_LOW_40G_XLAUI:
                case ICE_PHY_TYPE_LOW_50G_LAUI2:
                case ICE_PHY_TYPE_LOW_50G_AUI2:
                case ICE_PHY_TYPE_LOW_50G_AUI1:
                case ICE_PHY_TYPE_LOW_100G_AUI4:
                case ICE_PHY_TYPE_LOW_100G_CAUI4:
                        if (ice_is_media_cage_present(pi))
                                return ICE_MEDIA_DA;
                        fallthrough;
                case ICE_PHY_TYPE_LOW_1000BASE_KX:
                case ICE_PHY_TYPE_LOW_2500BASE_KX:
                case ICE_PHY_TYPE_LOW_2500BASE_X:
                case ICE_PHY_TYPE_LOW_5GBASE_KR:
                case ICE_PHY_TYPE_LOW_10GBASE_KR_CR1:
                case ICE_PHY_TYPE_LOW_25GBASE_KR:
                case ICE_PHY_TYPE_LOW_25GBASE_KR1:
                case ICE_PHY_TYPE_LOW_25GBASE_KR_S:
                case ICE_PHY_TYPE_LOW_40GBASE_KR4:
                case ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4:
                case ICE_PHY_TYPE_LOW_50GBASE_KR2:
                case ICE_PHY_TYPE_LOW_100GBASE_KR4:
                case ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4:
                        return ICE_MEDIA_BACKPLANE;
                }
        } else {
                switch (hw_link_info->phy_type_high) {
                case ICE_PHY_TYPE_HIGH_100G_AUI2:
                case ICE_PHY_TYPE_HIGH_100G_CAUI2:
                        if (ice_is_media_cage_present(pi))
                                return ICE_MEDIA_DA;
                        fallthrough;
                case ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4:
                        return ICE_MEDIA_BACKPLANE;
                case ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC:
                case ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC:
                        return ICE_MEDIA_FIBER;
                }
        }
        return ICE_MEDIA_UNKNOWN;
}

/**
 * ice_aq_get_link_info
 * @pi: port information structure
 * @ena_lse: enable/disable LinkStatusEvent reporting
 * @link: pointer to link status structure - optional
 * @cd: pointer to command details structure or NULL
 *
 * Get Link Status (0x607). Returns the link status of the adapter.
 */
enum ice_status
ice_aq_get_link_info(struct ice_port_info *pi, bool ena_lse,
                     struct ice_link_status *link, struct ice_sq_cd *cd)
{
        struct ice_aqc_get_link_status_data link_data = { 0 };
        struct ice_aqc_get_link_status *resp;
        struct ice_link_status *li_old, *li;
        enum ice_media_type *hw_media_type;
        struct ice_fc_info *hw_fc_info;
        bool tx_pause, rx_pause;
        struct ice_aq_desc desc;
        enum ice_status status;
        struct ice_hw *hw;
        u16 cmd_flags;

        if (!pi)
                return ICE_ERR_PARAM;
        hw = pi->hw;
        li_old = &pi->phy.link_info_old;
        hw_media_type = &pi->phy.media_type;
        li = &pi->phy.link_info;
        hw_fc_info = &pi->fc;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_link_status);
        cmd_flags = (ena_lse) ? ICE_AQ_LSE_ENA : ICE_AQ_LSE_DIS;
        resp = &desc.params.get_link_status;
        resp->cmd_flags = cpu_to_le16(cmd_flags);
        resp->lport_num = pi->lport;

        status = ice_aq_send_cmd(hw, &desc, &link_data, sizeof(link_data), cd);

        if (status)
                return status;

        /* save off old link status information */
        *li_old = *li;

        /* update current link status information */
        li->link_speed = le16_to_cpu(link_data.link_speed);
        li->phy_type_low = le64_to_cpu(link_data.phy_type_low);
        li->phy_type_high = le64_to_cpu(link_data.phy_type_high);
        *hw_media_type = ice_get_media_type(pi);
        li->link_info = link_data.link_info;
        li->link_cfg_err = link_data.link_cfg_err;
        li->an_info = link_data.an_info;
        li->ext_info = link_data.ext_info;
        li->max_frame_size = le16_to_cpu(link_data.max_frame_size);
        li->fec_info = link_data.cfg & ICE_AQ_FEC_MASK;
        li->topo_media_conflict = link_data.topo_media_conflict;
        li->pacing = link_data.cfg & (ICE_AQ_CFG_PACING_M |
                                      ICE_AQ_CFG_PACING_TYPE_M);

        /* update fc info */
        tx_pause = !!(link_data.an_info & ICE_AQ_LINK_PAUSE_TX);
        rx_pause = !!(link_data.an_info & ICE_AQ_LINK_PAUSE_RX);
        if (tx_pause && rx_pause)
                hw_fc_info->current_mode = ICE_FC_FULL;
        else if (tx_pause)
                hw_fc_info->current_mode = ICE_FC_TX_PAUSE;
        else if (rx_pause)
                hw_fc_info->current_mode = ICE_FC_RX_PAUSE;
        else
                hw_fc_info->current_mode = ICE_FC_NONE;

        li->lse_ena = !!(resp->cmd_flags & cpu_to_le16(ICE_AQ_LSE_IS_ENABLED));

        ice_debug(hw, ICE_DBG_LINK, "get link info\n");
        ice_debug(hw, ICE_DBG_LINK, "   link_speed = 0x%x\n", li->link_speed);
        ice_debug(hw, ICE_DBG_LINK, "   phy_type_low = 0x%llx\n",
                  (unsigned long long)li->phy_type_low);
        ice_debug(hw, ICE_DBG_LINK, "   phy_type_high = 0x%llx\n",
                  (unsigned long long)li->phy_type_high);
        ice_debug(hw, ICE_DBG_LINK, "   media_type = 0x%x\n", *hw_media_type);
        ice_debug(hw, ICE_DBG_LINK, "   link_info = 0x%x\n", li->link_info);
        ice_debug(hw, ICE_DBG_LINK, "   link_cfg_err = 0x%x\n", li->link_cfg_err);
        ice_debug(hw, ICE_DBG_LINK, "   an_info = 0x%x\n", li->an_info);
        ice_debug(hw, ICE_DBG_LINK, "   ext_info = 0x%x\n", li->ext_info);
        ice_debug(hw, ICE_DBG_LINK, "   fec_info = 0x%x\n", li->fec_info);
        ice_debug(hw, ICE_DBG_LINK, "   lse_ena = 0x%x\n", li->lse_ena);
        ice_debug(hw, ICE_DBG_LINK, "   max_frame = 0x%x\n",
                  li->max_frame_size);
        ice_debug(hw, ICE_DBG_LINK, "   pacing = 0x%x\n", li->pacing);

        /* save link status information */
        if (link)
                *link = *li;

        /* flag cleared so calling functions don't call AQ again */
        pi->phy.get_link_info = false;

        return 0;
}

/**
 * ice_fill_tx_timer_and_fc_thresh
 * @hw: pointer to the HW struct
 * @cmd: pointer to MAC cfg structure
 *
 * Add Tx timer and FC refresh threshold info to Set MAC Config AQ command
 * descriptor
 */
static void
ice_fill_tx_timer_and_fc_thresh(struct ice_hw *hw,
                                struct ice_aqc_set_mac_cfg *cmd)
{
        u16 fc_thres_val, tx_timer_val;
        u32 val;

        /* We read back the transmit timer and FC threshold value of
         * LFC. Thus, we will use index =
         * PRTMAC_HSEC_CTL_TX_PAUSE_QUANTA_MAX_INDEX.
         *
         * Also, because we are operating on transmit timer and FC
         * threshold of LFC, we don't turn on any bit in tx_tmr_priority
         */
#define IDX_OF_LFC PRTMAC_HSEC_CTL_TX_PAUSE_QUANTA_MAX_INDEX

        /* Retrieve the transmit timer */
        val = rd32(hw, PRTMAC_HSEC_CTL_TX_PAUSE_QUANTA(IDX_OF_LFC));
        tx_timer_val = val &
                PRTMAC_HSEC_CTL_TX_PAUSE_QUANTA_HSEC_CTL_TX_PAUSE_QUANTA_M;
        cmd->tx_tmr_value = cpu_to_le16(tx_timer_val);

        /* Retrieve the FC threshold */
        val = rd32(hw, PRTMAC_HSEC_CTL_TX_PAUSE_REFRESH_TIMER(IDX_OF_LFC));
        fc_thres_val = val & PRTMAC_HSEC_CTL_TX_PAUSE_REFRESH_TIMER_M;

        cmd->fc_refresh_threshold = cpu_to_le16(fc_thres_val);
}

/**
 * ice_aq_set_mac_cfg
 * @hw: pointer to the HW struct
 * @max_frame_size: Maximum Frame Size to be supported
 * @cd: pointer to command details structure or NULL
 *
 * Set MAC configuration (0x0603)
 */
enum ice_status
ice_aq_set_mac_cfg(struct ice_hw *hw, u16 max_frame_size, struct ice_sq_cd *cd)
{
        struct ice_aqc_set_mac_cfg *cmd;
        struct ice_aq_desc desc;

        cmd = &desc.params.set_mac_cfg;

        if (max_frame_size == 0)
                return ICE_ERR_PARAM;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_mac_cfg);

        cmd->max_frame_size = cpu_to_le16(max_frame_size);

        ice_fill_tx_timer_and_fc_thresh(hw, cmd);

        return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
}

/**
 * ice_init_fltr_mgmt_struct - initializes filter management list and locks
 * @hw: pointer to the HW struct
 */
static enum ice_status ice_init_fltr_mgmt_struct(struct ice_hw *hw)
{
        struct ice_switch_info *sw;
        enum ice_status status;

        hw->switch_info = devm_kzalloc(ice_hw_to_dev(hw),
                                       sizeof(*hw->switch_info), GFP_KERNEL);
        sw = hw->switch_info;

        if (!sw)
                return ICE_ERR_NO_MEMORY;

        INIT_LIST_HEAD(&sw->vsi_list_map_head);

        status = ice_init_def_sw_recp(hw);
        if (status) {
                devm_kfree(ice_hw_to_dev(hw), hw->switch_info);
                return status;
        }
        return 0;
}

/**
 * ice_cleanup_fltr_mgmt_struct - cleanup filter management list and locks
 * @hw: pointer to the HW struct
 */
static void ice_cleanup_fltr_mgmt_struct(struct ice_hw *hw)
{
        struct ice_switch_info *sw = hw->switch_info;
        struct ice_vsi_list_map_info *v_pos_map;
        struct ice_vsi_list_map_info *v_tmp_map;
        struct ice_sw_recipe *recps;
        u8 i;

        list_for_each_entry_safe(v_pos_map, v_tmp_map, &sw->vsi_list_map_head,
                                 list_entry) {
                list_del(&v_pos_map->list_entry);
                devm_kfree(ice_hw_to_dev(hw), v_pos_map);
        }
        recps = hw->switch_info->recp_list;
        for (i = 0; i < ICE_SW_LKUP_LAST; i++) {
                struct ice_fltr_mgmt_list_entry *lst_itr, *tmp_entry;

                recps[i].root_rid = i;
                mutex_destroy(&recps[i].filt_rule_lock);
                list_for_each_entry_safe(lst_itr, tmp_entry,
                                         &recps[i].filt_rules, list_entry) {
                        list_del(&lst_itr->list_entry);
                        devm_kfree(ice_hw_to_dev(hw), lst_itr);
                }
        }
        ice_rm_all_sw_replay_rule_info(hw);
        devm_kfree(ice_hw_to_dev(hw), sw->recp_list);
        devm_kfree(ice_hw_to_dev(hw), sw);
}

/**
 * ice_get_fw_log_cfg - get FW logging configuration
 * @hw: pointer to the HW struct
 */
static enum ice_status ice_get_fw_log_cfg(struct ice_hw *hw)
{
        struct ice_aq_desc desc;
        enum ice_status status;
        __le16 *config;
        u16 size;

        size = sizeof(*config) * ICE_AQC_FW_LOG_ID_MAX;
        config = devm_kzalloc(ice_hw_to_dev(hw), size, GFP_KERNEL);
        if (!config)
                return ICE_ERR_NO_MEMORY;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_fw_logging_info);

        status = ice_aq_send_cmd(hw, &desc, config, size, NULL);
        if (!status) {
                u16 i;

                /* Save FW logging information into the HW structure */
                for (i = 0; i < ICE_AQC_FW_LOG_ID_MAX; i++) {
                        u16 v, m, flgs;

                        v = le16_to_cpu(config[i]);
                        m = (v & ICE_AQC_FW_LOG_ID_M) >> ICE_AQC_FW_LOG_ID_S;
                        flgs = (v & ICE_AQC_FW_LOG_EN_M) >> ICE_AQC_FW_LOG_EN_S;

                        if (m < ICE_AQC_FW_LOG_ID_MAX)
                                hw->fw_log.evnts[m].cur = flgs;
                }
        }

        devm_kfree(ice_hw_to_dev(hw), config);

        return status;
}

/**
 * ice_cfg_fw_log - configure FW logging
 * @hw: pointer to the HW struct
 * @enable: enable certain FW logging events if true, disable all if false
 *
 * This function enables/disables the FW logging via Rx CQ events and a UART
 * port based on predetermined configurations. FW logging via the Rx CQ can be
 * enabled/disabled for individual PF's. However, FW logging via the UART can
 * only be enabled/disabled for all PFs on the same device.
 *
 * To enable overall FW logging, the "cq_en" and "uart_en" enable bits in
 * hw->fw_log need to be set accordingly, e.g. based on user-provided input,
 * before initializing the device.
 *
 * When re/configuring FW logging, callers need to update the "cfg" elements of
 * the hw->fw_log.evnts array with the desired logging event configurations for
 * modules of interest. When disabling FW logging completely, the callers can
 * just pass false in the "enable" parameter. On completion, the function will
 * update the "cur" element of the hw->fw_log.evnts array with the resulting
 * logging event configurations of the modules that are being re/configured. FW
 * logging modules that are not part of a reconfiguration operation retain their
 * previous states.
 *
 * Before resetting the device, it is recommended that the driver disables FW
 * logging before shutting down the control queue. When disabling FW logging
 * ("enable" = false), the latest configurations of FW logging events stored in
 * hw->fw_log.evnts[] are not overridden to allow them to be reconfigured after
 * a device reset.
 *
 * When enabling FW logging to emit log messages via the Rx CQ during the
 * device's initialization phase, a mechanism alternative to interrupt handlers
 * needs to be used to extract FW log messages from the Rx CQ periodically and
 * to prevent the Rx CQ from being full and stalling other types of control
 * messages from FW to SW. Interrupts are typically disabled during the device's
 * initialization phase.
 */
static enum ice_status ice_cfg_fw_log(struct ice_hw *hw, bool enable)
{
        struct ice_aqc_fw_logging *cmd;
        enum ice_status status = 0;
        u16 i, chgs = 0, len = 0;
        struct ice_aq_desc desc;
        __le16 *data = NULL;
        u8 actv_evnts = 0;
        void *buf = NULL;

        if (!hw->fw_log.cq_en && !hw->fw_log.uart_en)
                return 0;

        /* Disable FW logging only when the control queue is still responsive */
        if (!enable &&
            (!hw->fw_log.actv_evnts || !ice_check_sq_alive(hw, &hw->adminq)))
                return 0;

        /* Get current FW log settings */
        status = ice_get_fw_log_cfg(hw);
        if (status)
                return status;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_fw_logging);
        cmd = &desc.params.fw_logging;

        /* Indicate which controls are valid */
        if (hw->fw_log.cq_en)
                cmd->log_ctrl_valid |= ICE_AQC_FW_LOG_AQ_VALID;

        if (hw->fw_log.uart_en)
                cmd->log_ctrl_valid |= ICE_AQC_FW_LOG_UART_VALID;

        if (enable) {
                /* Fill in an array of entries with FW logging modules and
                 * logging events being reconfigured.
                 */
                for (i = 0; i < ICE_AQC_FW_LOG_ID_MAX; i++) {
                        u16 val;

                        /* Keep track of enabled event types */
                        actv_evnts |= hw->fw_log.evnts[i].cfg;

                        if (hw->fw_log.evnts[i].cfg == hw->fw_log.evnts[i].cur)
                                continue;

                        if (!data) {
                                data = devm_kcalloc(ice_hw_to_dev(hw),
                                                    ICE_AQC_FW_LOG_ID_MAX,
                                                    sizeof(*data),
                                                    GFP_KERNEL);
                                if (!data)
                                        return ICE_ERR_NO_MEMORY;
                        }

                        val = i << ICE_AQC_FW_LOG_ID_S;
                        val |= hw->fw_log.evnts[i].cfg << ICE_AQC_FW_LOG_EN_S;
                        data[chgs++] = cpu_to_le16(val);
                }

                /* Only enable FW logging if at least one module is specified.
                 * If FW logging is currently enabled but all modules are not
                 * enabled to emit log messages, disable FW logging altogether.
                 */
                if (actv_evnts) {
                        /* Leave if there is effectively no change */
                        if (!chgs)
                                goto out;

                        if (hw->fw_log.cq_en)
                                cmd->log_ctrl |= ICE_AQC_FW_LOG_AQ_EN;

                        if (hw->fw_log.uart_en)
                                cmd->log_ctrl |= ICE_AQC_FW_LOG_UART_EN;

                        buf = data;
                        len = sizeof(*data) * chgs;
                        desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
                }
        }

        status = ice_aq_send_cmd(hw, &desc, buf, len, NULL);
        if (!status) {
                /* Update the current configuration to reflect events enabled.
                 * hw->fw_log.cq_en and hw->fw_log.uart_en indicate if the FW
                 * logging mode is enabled for the device. They do not reflect
                 * actual modules being enabled to emit log messages. So, their
                 * values remain unchanged even when all modules are disabled.
                 */
                u16 cnt = enable ? chgs : (u16)ICE_AQC_FW_LOG_ID_MAX;

                hw->fw_log.actv_evnts = actv_evnts;
                for (i = 0; i < cnt; i++) {
                        u16 v, m;

                        if (!enable) {
                                /* When disabling all FW logging events as part
                                 * of device's de-initialization, the original
                                 * configurations are retained, and can be used
                                 * to reconfigure FW logging later if the device
                                 * is re-initialized.
                                 */
                                hw->fw_log.evnts[i].cur = 0;
                                continue;
                        }

                        v = le16_to_cpu(data[i]);
                        m = (v & ICE_AQC_FW_LOG_ID_M) >> ICE_AQC_FW_LOG_ID_S;
                        hw->fw_log.evnts[m].cur = hw->fw_log.evnts[m].cfg;
                }
        }

out:
        if (data)
                devm_kfree(ice_hw_to_dev(hw), data);

        return status;
}

/**
 * ice_output_fw_log
 * @hw: pointer to the HW struct
 * @desc: pointer to the AQ message descriptor
 * @buf: pointer to the buffer accompanying the AQ message
 *
 * Formats a FW Log message and outputs it via the standard driver logs.
 */
void ice_output_fw_log(struct ice_hw *hw, struct ice_aq_desc *desc, void *buf)
{
        ice_debug(hw, ICE_DBG_FW_LOG, "[ FW Log Msg Start ]\n");
        ice_debug_array(hw, ICE_DBG_FW_LOG, 16, 1, (u8 *)buf,
                        le16_to_cpu(desc->datalen));
        ice_debug(hw, ICE_DBG_FW_LOG, "[ FW Log Msg End ]\n");
}

/**
 * ice_get_itr_intrl_gran
 * @hw: pointer to the HW struct
 *
 * Determines the ITR/INTRL granularities based on the maximum aggregate
 * bandwidth according to the device's configuration during power-on.
 */
static void ice_get_itr_intrl_gran(struct ice_hw *hw)
{
        u8 max_agg_bw = (rd32(hw, GL_PWR_MODE_CTL) &
                         GL_PWR_MODE_CTL_CAR_MAX_BW_M) >>
                        GL_PWR_MODE_CTL_CAR_MAX_BW_S;

        switch (max_agg_bw) {
        case ICE_MAX_AGG_BW_200G:
        case ICE_MAX_AGG_BW_100G:
        case ICE_MAX_AGG_BW_50G:
                hw->itr_gran = ICE_ITR_GRAN_ABOVE_25;
                hw->intrl_gran = ICE_INTRL_GRAN_ABOVE_25;
                break;
        case ICE_MAX_AGG_BW_25G:
                hw->itr_gran = ICE_ITR_GRAN_MAX_25;
                hw->intrl_gran = ICE_INTRL_GRAN_MAX_25;
                break;
        }
}

/**
 * ice_init_hw - main hardware initialization routine
 * @hw: pointer to the hardware structure
 */
enum ice_status ice_init_hw(struct ice_hw *hw)
{
        struct ice_aqc_get_phy_caps_data *pcaps;
        enum ice_status status;
        u16 mac_buf_len;
        void *mac_buf;

        /* Set MAC type based on DeviceID */
        status = ice_set_mac_type(hw);
        if (status)
                return status;

        hw->pf_id = (u8)(rd32(hw, PF_FUNC_RID) &
                         PF_FUNC_RID_FUNC_NUM_M) >>
                PF_FUNC_RID_FUNC_NUM_S;

        status = ice_reset(hw, ICE_RESET_PFR);
        if (status)
                return status;

        ice_get_itr_intrl_gran(hw);

        status = ice_create_all_ctrlq(hw);
        if (status)
                goto err_unroll_cqinit;

        /* Enable FW logging. Not fatal if this fails. */
        status = ice_cfg_fw_log(hw, true);
        if (status)
                ice_debug(hw, ICE_DBG_INIT, "Failed to enable FW logging.\n");

        status = ice_clear_pf_cfg(hw);
        if (status)
                goto err_unroll_cqinit;

        /* Set bit to enable Flow Director filters */
        wr32(hw, PFQF_FD_ENA, PFQF_FD_ENA_FD_ENA_M);
        INIT_LIST_HEAD(&hw->fdir_list_head);

        ice_clear_pxe_mode(hw);

        status = ice_init_nvm(hw);
        if (status)
                goto err_unroll_cqinit;

        status = ice_get_caps(hw);
        if (status)
                goto err_unroll_cqinit;

        hw->port_info = devm_kzalloc(ice_hw_to_dev(hw),
                                     sizeof(*hw->port_info), GFP_KERNEL);
        if (!hw->port_info) {
                status = ICE_ERR_NO_MEMORY;
                goto err_unroll_cqinit;
        }

        /* set the back pointer to HW */
        hw->port_info->hw = hw;

        /* Initialize port_info struct with switch configuration data */
        status = ice_get_initial_sw_cfg(hw);
        if (status)
                goto err_unroll_alloc;

        hw->evb_veb = true;

        /* Query the allocated resources for Tx scheduler */
        status = ice_sched_query_res_alloc(hw);
        if (status) {
                ice_debug(hw, ICE_DBG_SCHED, "Failed to get scheduler allocated resources\n");
                goto err_unroll_alloc;
        }
        ice_sched_get_psm_clk_freq(hw);

        /* Initialize port_info struct with scheduler data */
        status = ice_sched_init_port(hw->port_info);
        if (status)
                goto err_unroll_sched;

        pcaps = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*pcaps), GFP_KERNEL);
        if (!pcaps) {
                status = ICE_ERR_NO_MEMORY;
                goto err_unroll_sched;
        }

        /* Initialize port_info struct with PHY capabilities */
        status = ice_aq_get_phy_caps(hw->port_info, false,
                                     ICE_AQC_REPORT_TOPO_CAP_MEDIA, pcaps,
                                     NULL);
        devm_kfree(ice_hw_to_dev(hw), pcaps);
        if (status)
                dev_warn(ice_hw_to_dev(hw), "Get PHY capabilities failed status = %d, continuing anyway\n",
                         status);

        /* Initialize port_info struct with link information */
        status = ice_aq_get_link_info(hw->port_info, false, NULL, NULL);
        if (status)
                goto err_unroll_sched;

        /* need a valid SW entry point to build a Tx tree */
        if (!hw->sw_entry_point_layer) {
                ice_debug(hw, ICE_DBG_SCHED, "invalid sw entry point\n");
                status = ICE_ERR_CFG;
                goto err_unroll_sched;
        }
        INIT_LIST_HEAD(&hw->agg_list);
        /* Initialize max burst size */
        if (!hw->max_burst_size)
                ice_cfg_rl_burst_size(hw, ICE_SCHED_DFLT_BURST_SIZE);

        status = ice_init_fltr_mgmt_struct(hw);
        if (status)
                goto err_unroll_sched;

        /* Get MAC information */
        /* A single port can report up to two (LAN and WoL) addresses */
        mac_buf = devm_kcalloc(ice_hw_to_dev(hw), 2,
                               sizeof(struct ice_aqc_manage_mac_read_resp),
                               GFP_KERNEL);
        mac_buf_len = 2 * sizeof(struct ice_aqc_manage_mac_read_resp);

        if (!mac_buf) {
                status = ICE_ERR_NO_MEMORY;
                goto err_unroll_fltr_mgmt_struct;
        }

        status = ice_aq_manage_mac_read(hw, mac_buf, mac_buf_len, NULL);
        devm_kfree(ice_hw_to_dev(hw), mac_buf);

        if (status)
                goto err_unroll_fltr_mgmt_struct;
        /* enable jumbo frame support at MAC level */
        status = ice_aq_set_mac_cfg(hw, ICE_AQ_SET_MAC_FRAME_SIZE_MAX, NULL);
        if (status)
                goto err_unroll_fltr_mgmt_struct;
        /* Obtain counter base index which would be used by flow director */
        status = ice_alloc_fd_res_cntr(hw, &hw->fd_ctr_base);
        if (status)
                goto err_unroll_fltr_mgmt_struct;
        status = ice_init_hw_tbls(hw);
        if (status)
                goto err_unroll_fltr_mgmt_struct;
        mutex_init(&hw->tnl_lock);
        return 0;

err_unroll_fltr_mgmt_struct:
        ice_cleanup_fltr_mgmt_struct(hw);
err_unroll_sched:
        ice_sched_cleanup_all(hw);
err_unroll_alloc:
        devm_kfree(ice_hw_to_dev(hw), hw->port_info);
err_unroll_cqinit:
        ice_destroy_all_ctrlq(hw);
        return status;
}

/**
 * ice_deinit_hw - unroll initialization operations done by ice_init_hw
 * @hw: pointer to the hardware structure
 *
 * This should be called only during nominal operation, not as a result of
 * ice_init_hw() failing since ice_init_hw() will take care of unrolling
 * applicable initializations if it fails for any reason.
 */
void ice_deinit_hw(struct ice_hw *hw)
{
        ice_free_fd_res_cntr(hw, hw->fd_ctr_base);
        ice_cleanup_fltr_mgmt_struct(hw);

        ice_sched_cleanup_all(hw);
        ice_sched_clear_agg(hw);
        ice_free_seg(hw);
        ice_free_hw_tbls(hw);
        mutex_destroy(&hw->tnl_lock);

        if (hw->port_info) {
                devm_kfree(ice_hw_to_dev(hw), hw->port_info);
                hw->port_info = NULL;
        }

        /* Attempt to disable FW logging before shutting down control queues */
        ice_cfg_fw_log(hw, false);
        ice_destroy_all_ctrlq(hw);

        /* Clear VSI contexts if not already cleared */
        ice_clear_all_vsi_ctx(hw);
}

/**
 * ice_check_reset - Check to see if a global reset is complete
 * @hw: pointer to the hardware structure
 */
enum ice_status ice_check_reset(struct ice_hw *hw)
{
        u32 cnt, reg = 0, grst_timeout, uld_mask;

        /* Poll for Device Active state in case a recent CORER, GLOBR,
         * or EMPR has occurred. The grst delay value is in 100ms units.
         * Add 1sec for outstanding AQ commands that can take a long time.
         */
        grst_timeout = ((rd32(hw, GLGEN_RSTCTL) & GLGEN_RSTCTL_GRSTDEL_M) >>
                        GLGEN_RSTCTL_GRSTDEL_S) + 10;

        for (cnt = 0; cnt < grst_timeout; cnt++) {
                mdelay(100);
                reg = rd32(hw, GLGEN_RSTAT);
                if (!(reg & GLGEN_RSTAT_DEVSTATE_M))
                        break;
        }

        if (cnt == grst_timeout) {
                ice_debug(hw, ICE_DBG_INIT, "Global reset polling failed to complete.\n");
                return ICE_ERR_RESET_FAILED;
        }

#define ICE_RESET_DONE_MASK     (GLNVM_ULD_PCIER_DONE_M |\
                                 GLNVM_ULD_PCIER_DONE_1_M |\
                                 GLNVM_ULD_CORER_DONE_M |\
                                 GLNVM_ULD_GLOBR_DONE_M |\
                                 GLNVM_ULD_POR_DONE_M |\
                                 GLNVM_ULD_POR_DONE_1_M |\
                                 GLNVM_ULD_PCIER_DONE_2_M)

        uld_mask = ICE_RESET_DONE_MASK | (hw->func_caps.common_cap.rdma ?
                                          GLNVM_ULD_PE_DONE_M : 0);

        /* Device is Active; check Global Reset processes are done */
        for (cnt = 0; cnt < ICE_PF_RESET_WAIT_COUNT; cnt++) {
                reg = rd32(hw, GLNVM_ULD) & uld_mask;
                if (reg == uld_mask) {
                        ice_debug(hw, ICE_DBG_INIT, "Global reset processes done. %d\n", cnt);
                        break;
                }
                mdelay(10);
        }

        if (cnt == ICE_PF_RESET_WAIT_COUNT) {
                ice_debug(hw, ICE_DBG_INIT, "Wait for Reset Done timed out. GLNVM_ULD = 0x%x\n",
                          reg);
                return ICE_ERR_RESET_FAILED;
        }

        return 0;
}

/**
 * ice_pf_reset - Reset the PF
 * @hw: pointer to the hardware structure
 *
 * If a global reset has been triggered, this function checks
 * for its completion and then issues the PF reset
 */
static enum ice_status ice_pf_reset(struct ice_hw *hw)
{
        u32 cnt, reg;

        /* If at function entry a global reset was already in progress, i.e.
         * state is not 'device active' or any of the reset done bits are not
         * set in GLNVM_ULD, there is no need for a PF Reset; poll until the
         * global reset is done.
         */
        if ((rd32(hw, GLGEN_RSTAT) & GLGEN_RSTAT_DEVSTATE_M) ||
            (rd32(hw, GLNVM_ULD) & ICE_RESET_DONE_MASK) ^ ICE_RESET_DONE_MASK) {
                /* poll on global reset currently in progress until done */
                if (ice_check_reset(hw))
                        return ICE_ERR_RESET_FAILED;

                return 0;
        }

        /* Reset the PF */
        reg = rd32(hw, PFGEN_CTRL);

        wr32(hw, PFGEN_CTRL, (reg | PFGEN_CTRL_PFSWR_M));

        /* Wait for the PFR to complete. The wait time is the global config lock
         * timeout plus the PFR timeout which will account for a possible reset
         * that is occurring during a download package operation.
         */
        for (cnt = 0; cnt < ICE_GLOBAL_CFG_LOCK_TIMEOUT +
             ICE_PF_RESET_WAIT_COUNT; cnt++) {
                reg = rd32(hw, PFGEN_CTRL);
                if (!(reg & PFGEN_CTRL_PFSWR_M))
                        break;

                mdelay(1);
        }

        if (cnt == ICE_PF_RESET_WAIT_COUNT) {
                ice_debug(hw, ICE_DBG_INIT, "PF reset polling failed to complete.\n");
                return ICE_ERR_RESET_FAILED;
        }

        return 0;
}

/**
 * ice_reset - Perform different types of reset
 * @hw: pointer to the hardware structure
 * @req: reset request
 *
 * This function triggers a reset as specified by the req parameter.
 *
 * Note:
 * If anything other than a PF reset is triggered, PXE mode is restored.
 * This has to be cleared using ice_clear_pxe_mode again, once the AQ
 * interface has been restored in the rebuild flow.
 */
enum ice_status ice_reset(struct ice_hw *hw, enum ice_reset_req req)
{
        u32 val = 0;

        switch (req) {
        case ICE_RESET_PFR:
                return ice_pf_reset(hw);
        case ICE_RESET_CORER:
                ice_debug(hw, ICE_DBG_INIT, "CoreR requested\n");
                val = GLGEN_RTRIG_CORER_M;
                break;
        case ICE_RESET_GLOBR:
                ice_debug(hw, ICE_DBG_INIT, "GlobalR requested\n");
                val = GLGEN_RTRIG_GLOBR_M;
                break;
        default:
                return ICE_ERR_PARAM;
        }

        val |= rd32(hw, GLGEN_RTRIG);
        wr32(hw, GLGEN_RTRIG, val);
        ice_flush(hw);

        /* wait for the FW to be ready */
        return ice_check_reset(hw);
}

/**
 * ice_copy_rxq_ctx_to_hw
 * @hw: pointer to the hardware structure
 * @ice_rxq_ctx: pointer to the rxq context
 * @rxq_index: the index of the Rx queue
 *
 * Copies rxq context from dense structure to HW register space
 */
static enum ice_status
ice_copy_rxq_ctx_to_hw(struct ice_hw *hw, u8 *ice_rxq_ctx, u32 rxq_index)
{
        u8 i;

        if (!ice_rxq_ctx)
                return ICE_ERR_BAD_PTR;

        if (rxq_index > QRX_CTRL_MAX_INDEX)
                return ICE_ERR_PARAM;

        /* Copy each dword separately to HW */
        for (i = 0; i < ICE_RXQ_CTX_SIZE_DWORDS; i++) {
                wr32(hw, QRX_CONTEXT(i, rxq_index),
                     *((u32 *)(ice_rxq_ctx + (i * sizeof(u32)))));

                ice_debug(hw, ICE_DBG_QCTX, "qrxdata[%d]: %08X\n", i,
                          *((u32 *)(ice_rxq_ctx + (i * sizeof(u32)))));
        }

        return 0;
}

/* LAN Rx Queue Context */
static const struct ice_ctx_ele ice_rlan_ctx_info[] = {
        /* Field                Width   LSB */
        ICE_CTX_STORE(ice_rlan_ctx, head,               13,     0),
        ICE_CTX_STORE(ice_rlan_ctx, cpuid,              8,      13),
        ICE_CTX_STORE(ice_rlan_ctx, base,               57,     32),
        ICE_CTX_STORE(ice_rlan_ctx, qlen,               13,     89),
        ICE_CTX_STORE(ice_rlan_ctx, dbuf,               7,      102),
        ICE_CTX_STORE(ice_rlan_ctx, hbuf,               5,      109),
        ICE_CTX_STORE(ice_rlan_ctx, dtype,              2,      114),
        ICE_CTX_STORE(ice_rlan_ctx, dsize,              1,      116),
        ICE_CTX_STORE(ice_rlan_ctx, crcstrip,           1,      117),
        ICE_CTX_STORE(ice_rlan_ctx, l2tsel,             1,      119),
        ICE_CTX_STORE(ice_rlan_ctx, hsplit_0,           4,      120),
        ICE_CTX_STORE(ice_rlan_ctx, hsplit_1,           2,      124),
        ICE_CTX_STORE(ice_rlan_ctx, showiv,             1,      127),
        ICE_CTX_STORE(ice_rlan_ctx, rxmax,              14,     174),
        ICE_CTX_STORE(ice_rlan_ctx, tphrdesc_ena,       1,      193),
        ICE_CTX_STORE(ice_rlan_ctx, tphwdesc_ena,       1,      194),
        ICE_CTX_STORE(ice_rlan_ctx, tphdata_ena,        1,      195),
        ICE_CTX_STORE(ice_rlan_ctx, tphhead_ena,        1,      196),
        ICE_CTX_STORE(ice_rlan_ctx, lrxqthresh,         3,      198),
        ICE_CTX_STORE(ice_rlan_ctx, prefena,            1,      201),
        { 0 }
};

/**
 * ice_write_rxq_ctx
 * @hw: pointer to the hardware structure
 * @rlan_ctx: pointer to the rxq context
 * @rxq_index: the index of the Rx queue
 *
 * Converts rxq context from sparse to dense structure and then writes
 * it to HW register space and enables the hardware to prefetch descriptors
 * instead of only fetching them on demand
 */
enum ice_status
ice_write_rxq_ctx(struct ice_hw *hw, struct ice_rlan_ctx *rlan_ctx,
                  u32 rxq_index)
{
        u8 ctx_buf[ICE_RXQ_CTX_SZ] = { 0 };

        if (!rlan_ctx)
                return ICE_ERR_BAD_PTR;

        rlan_ctx->prefena = 1;

        ice_set_ctx(hw, (u8 *)rlan_ctx, ctx_buf, ice_rlan_ctx_info);
        return ice_copy_rxq_ctx_to_hw(hw, ctx_buf, rxq_index);
}

/* LAN Tx Queue Context */
const struct ice_ctx_ele ice_tlan_ctx_info[] = {
                                    /* Field                    Width   LSB */
        ICE_CTX_STORE(ice_tlan_ctx, base,                       57,     0),
        ICE_CTX_STORE(ice_tlan_ctx, port_num,                   3,      57),
        ICE_CTX_STORE(ice_tlan_ctx, cgd_num,                    5,      60),
        ICE_CTX_STORE(ice_tlan_ctx, pf_num,                     3,      65),
        ICE_CTX_STORE(ice_tlan_ctx, vmvf_num,                   10,     68),
        ICE_CTX_STORE(ice_tlan_ctx, vmvf_type,                  2,      78),
        ICE_CTX_STORE(ice_tlan_ctx, src_vsi,                    10,     80),
        ICE_CTX_STORE(ice_tlan_ctx, tsyn_ena,                   1,      90),
        ICE_CTX_STORE(ice_tlan_ctx, internal_usage_flag,        1,      91),
        ICE_CTX_STORE(ice_tlan_ctx, alt_vlan,                   1,      92),
        ICE_CTX_STORE(ice_tlan_ctx, cpuid,                      8,      93),
        ICE_CTX_STORE(ice_tlan_ctx, wb_mode,                    1,      101),
        ICE_CTX_STORE(ice_tlan_ctx, tphrd_desc,                 1,      102),
        ICE_CTX_STORE(ice_tlan_ctx, tphrd,                      1,      103),
        ICE_CTX_STORE(ice_tlan_ctx, tphwr_desc,                 1,      104),
        ICE_CTX_STORE(ice_tlan_ctx, cmpq_id,                    9,      105),
        ICE_CTX_STORE(ice_tlan_ctx, qnum_in_func,               14,     114),
        ICE_CTX_STORE(ice_tlan_ctx, itr_notification_mode,      1,      128),
        ICE_CTX_STORE(ice_tlan_ctx, adjust_prof_id,             6,      129),
        ICE_CTX_STORE(ice_tlan_ctx, qlen,                       13,     135),
        ICE_CTX_STORE(ice_tlan_ctx, quanta_prof_idx,            4,      148),
        ICE_CTX_STORE(ice_tlan_ctx, tso_ena,                    1,      152),
        ICE_CTX_STORE(ice_tlan_ctx, tso_qnum,                   11,     153),
        ICE_CTX_STORE(ice_tlan_ctx, legacy_int,                 1,      164),
        ICE_CTX_STORE(ice_tlan_ctx, drop_ena,                   1,      165),
        ICE_CTX_STORE(ice_tlan_ctx, cache_prof_idx,             2,      166),
        ICE_CTX_STORE(ice_tlan_ctx, pkt_shaper_prof_idx,        3,      168),
        ICE_CTX_STORE(ice_tlan_ctx, int_q_state,                122,    171),
        { 0 }
};

/* Sideband Queue command wrappers */

/**
 * ice_sbq_send_cmd - send Sideband Queue command to Sideband Queue
 * @hw: pointer to the HW struct
 * @desc: descriptor describing the command
 * @buf: buffer to use for indirect commands (NULL for direct commands)
 * @buf_size: size of buffer for indirect commands (0 for direct commands)
 * @cd: pointer to command details structure
 */
static int
ice_sbq_send_cmd(struct ice_hw *hw, struct ice_sbq_cmd_desc *desc,
                 void *buf, u16 buf_size, struct ice_sq_cd *cd)
{
        return ice_status_to_errno(ice_sq_send_cmd(hw, ice_get_sbq(hw),
                                                   (struct ice_aq_desc *)desc,
                                                   buf, buf_size, cd));
}

/**
 * ice_sbq_rw_reg - Fill Sideband Queue command
 * @hw: pointer to the HW struct
 * @in: message info to be filled in descriptor
 */
int ice_sbq_rw_reg(struct ice_hw *hw, struct ice_sbq_msg_input *in)
{
        struct ice_sbq_cmd_desc desc = {0};
        struct ice_sbq_msg_req msg = {0};
        u16 msg_len;
        int status;

        msg_len = sizeof(msg);

        msg.dest_dev = in->dest_dev;
        msg.opcode = in->opcode;
        msg.flags = ICE_SBQ_MSG_FLAGS;
        msg.sbe_fbe = ICE_SBQ_MSG_SBE_FBE;
        msg.msg_addr_low = cpu_to_le16(in->msg_addr_low);
        msg.msg_addr_high = cpu_to_le32(in->msg_addr_high);

        if (in->opcode)
                msg.data = cpu_to_le32(in->data);
        else
                /* data read comes back in completion, so shorten the struct by
                 * sizeof(msg.data)
                 */
                msg_len -= sizeof(msg.data);

        desc.flags = cpu_to_le16(ICE_AQ_FLAG_RD);
        desc.opcode = cpu_to_le16(ice_sbq_opc_neigh_dev_req);
        desc.param0.cmd_len = cpu_to_le16(msg_len);
        status = ice_sbq_send_cmd(hw, &desc, &msg, msg_len, NULL);
        if (!status && !in->opcode)
                in->data = le32_to_cpu
                        (((struct ice_sbq_msg_cmpl *)&msg)->data);
        return status;
}

/* FW Admin Queue command wrappers */

/* Software lock/mutex that is meant to be held while the Global Config Lock
 * in firmware is acquired by the software to prevent most (but not all) types
 * of AQ commands from being sent to FW
 */
DEFINE_MUTEX(ice_global_cfg_lock_sw);

/**
 * ice_should_retry_sq_send_cmd
 * @opcode: AQ opcode
 *
 * Decide if we should retry the send command routine for the ATQ, depending
 * on the opcode.
 */
static bool ice_should_retry_sq_send_cmd(u16 opcode)
{
        switch (opcode) {
        case ice_aqc_opc_get_link_topo:
        case ice_aqc_opc_lldp_stop:
        case ice_aqc_opc_lldp_start:
        case ice_aqc_opc_lldp_filter_ctrl:
                return true;
        }

        return false;
}

/**
 * ice_sq_send_cmd_retry - send command to Control Queue (ATQ)
 * @hw: pointer to the HW struct
 * @cq: pointer to the specific Control queue
 * @desc: prefilled descriptor describing the command
 * @buf: buffer to use for indirect commands (or NULL for direct commands)
 * @buf_size: size of buffer for indirect commands (or 0 for direct commands)
 * @cd: pointer to command details structure
 *
 * Retry sending the FW Admin Queue command, multiple times, to the FW Admin
 * Queue if the EBUSY AQ error is returned.
 */
static enum ice_status
ice_sq_send_cmd_retry(struct ice_hw *hw, struct ice_ctl_q_info *cq,
                      struct ice_aq_desc *desc, void *buf, u16 buf_size,
                      struct ice_sq_cd *cd)
{
        struct ice_aq_desc desc_cpy;
        enum ice_status status;
        bool is_cmd_for_retry;
        u8 *buf_cpy = NULL;
        u8 idx = 0;
        u16 opcode;

        opcode = le16_to_cpu(desc->opcode);
        is_cmd_for_retry = ice_should_retry_sq_send_cmd(opcode);
        memset(&desc_cpy, 0, sizeof(desc_cpy));

        if (is_cmd_for_retry) {
                if (buf) {
                        buf_cpy = kzalloc(buf_size, GFP_KERNEL);
                        if (!buf_cpy)
                                return ICE_ERR_NO_MEMORY;
                }

                memcpy(&desc_cpy, desc, sizeof(desc_cpy));
        }

        do {
                status = ice_sq_send_cmd(hw, cq, desc, buf, buf_size, cd);

                if (!is_cmd_for_retry || !status ||
                    hw->adminq.sq_last_status != ICE_AQ_RC_EBUSY)
                        break;

                if (buf_cpy)
                        memcpy(buf, buf_cpy, buf_size);

                memcpy(desc, &desc_cpy, sizeof(desc_cpy));

                mdelay(ICE_SQ_SEND_DELAY_TIME_MS);

        } while (++idx < ICE_SQ_SEND_MAX_EXECUTE);

        kfree(buf_cpy);

        return status;
}

/**
 * ice_aq_send_cmd - send FW Admin Queue command to FW Admin Queue
 * @hw: pointer to the HW struct
 * @desc: descriptor describing the command
 * @buf: buffer to use for indirect commands (NULL for direct commands)
 * @buf_size: size of buffer for indirect commands (0 for direct commands)
 * @cd: pointer to command details structure
 *
 * Helper function to send FW Admin Queue commands to the FW Admin Queue.
 */
enum ice_status
ice_aq_send_cmd(struct ice_hw *hw, struct ice_aq_desc *desc, void *buf,
                u16 buf_size, struct ice_sq_cd *cd)
{
        struct ice_aqc_req_res *cmd = &desc->params.res_owner;
        bool lock_acquired = false;
        enum ice_status status;

        /* When a package download is in process (i.e. when the firmware's
         * Global Configuration Lock resource is held), only the Download
         * Package, Get Version, Get Package Info List and Release Resource
         * (with resource ID set to Global Config Lock) AdminQ commands are
         * allowed; all others must block until the package download completes
         * and the Global Config Lock is released.  See also
         * ice_acquire_global_cfg_lock().
         */
        switch (le16_to_cpu(desc->opcode)) {
        case ice_aqc_opc_download_pkg:
        case ice_aqc_opc_get_pkg_info_list:
        case ice_aqc_opc_get_ver:
                break;
        case ice_aqc_opc_release_res:
                if (le16_to_cpu(cmd->res_id) == ICE_AQC_RES_ID_GLBL_LOCK)
                        break;
                fallthrough;
        default:
                mutex_lock(&ice_global_cfg_lock_sw);
                lock_acquired = true;
                break;
        }

        status = ice_sq_send_cmd_retry(hw, &hw->adminq, desc, buf, buf_size, cd);
        if (lock_acquired)
                mutex_unlock(&ice_global_cfg_lock_sw);

        return status;
}

/**
 * ice_aq_get_fw_ver
 * @hw: pointer to the HW struct
 * @cd: pointer to command details structure or NULL
 *
 * Get the firmware version (0x0001) from the admin queue commands
 */
enum ice_status ice_aq_get_fw_ver(struct ice_hw *hw, struct ice_sq_cd *cd)
{
        struct ice_aqc_get_ver *resp;
        struct ice_aq_desc desc;
        enum ice_status status;

        resp = &desc.params.get_ver;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_ver);

        status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);

        if (!status) {
                hw->fw_branch = resp->fw_branch;
                hw->fw_maj_ver = resp->fw_major;
                hw->fw_min_ver = resp->fw_minor;
                hw->fw_patch = resp->fw_patch;
                hw->fw_build = le32_to_cpu(resp->fw_build);
                hw->api_branch = resp->api_branch;
                hw->api_maj_ver = resp->api_major;
                hw->api_min_ver = resp->api_minor;
                hw->api_patch = resp->api_patch;
        }

        return status;
}

/**
 * ice_aq_send_driver_ver
 * @hw: pointer to the HW struct
 * @dv: driver's major, minor version
 * @cd: pointer to command details structure or NULL
 *
 * Send the driver version (0x0002) to the firmware
 */
enum ice_status
ice_aq_send_driver_ver(struct ice_hw *hw, struct ice_driver_ver *dv,
                       struct ice_sq_cd *cd)
{
        struct ice_aqc_driver_ver *cmd;
        struct ice_aq_desc desc;
        u16 len;

        cmd = &desc.params.driver_ver;

        if (!dv)
                return ICE_ERR_PARAM;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_driver_ver);

        desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
        cmd->major_ver = dv->major_ver;
        cmd->minor_ver = dv->minor_ver;
        cmd->build_ver = dv->build_ver;
        cmd->subbuild_ver = dv->subbuild_ver;

        len = 0;
        while (len < sizeof(dv->driver_string) &&
               isascii(dv->driver_string[len]) && dv->driver_string[len])
                len++;

        return ice_aq_send_cmd(hw, &desc, dv->driver_string, len, cd);
}

/**
 * ice_aq_q_shutdown
 * @hw: pointer to the HW struct
 * @unloading: is the driver unloading itself
 *
 * Tell the Firmware that we're shutting down the AdminQ and whether
 * or not the driver is unloading as well (0x0003).
 */
enum ice_status ice_aq_q_shutdown(struct ice_hw *hw, bool unloading)
{
        struct ice_aqc_q_shutdown *cmd;
        struct ice_aq_desc desc;

        cmd = &desc.params.q_shutdown;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_q_shutdown);

        if (unloading)
                cmd->driver_unloading = ICE_AQC_DRIVER_UNLOADING;

        return ice_aq_send_cmd(hw, &desc, NULL, 0, NULL);
}

/**
 * ice_aq_req_res
 * @hw: pointer to the HW struct
 * @res: resource ID
 * @access: access type
 * @sdp_number: resource number
 * @timeout: the maximum time in ms that the driver may hold the resource
 * @cd: pointer to command details structure or NULL
 *
 * Requests common resource using the admin queue commands (0x0008).
 * When attempting to acquire the Global Config Lock, the driver can
 * learn of three states:
 *  1) ICE_SUCCESS -        acquired lock, and can perform download package
 *  2) ICE_ERR_AQ_ERROR -   did not get lock, driver should fail to load
 *  3) ICE_ERR_AQ_NO_WORK - did not get lock, but another driver has
 *                          successfully downloaded the package; the driver does
 *                          not have to download the package and can continue
 *                          loading
 *
 * Note that if the caller is in an acquire lock, perform action, release lock
 * phase of operation, it is possible that the FW may detect a timeout and issue
 * a CORER. In this case, the driver will receive a CORER interrupt and will
 * have to determine its cause. The calling thread that is handling this flow
 * will likely get an error propagated back to it indicating the Download
 * Package, Update Package or the Release Resource AQ commands timed out.
 */
static enum ice_status
ice_aq_req_res(struct ice_hw *hw, enum ice_aq_res_ids res,
               enum ice_aq_res_access_type access, u8 sdp_number, u32 *timeout,
               struct ice_sq_cd *cd)
{
        struct ice_aqc_req_res *cmd_resp;
        struct ice_aq_desc desc;
        enum ice_status status;

        cmd_resp = &desc.params.res_owner;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_req_res);

        cmd_resp->res_id = cpu_to_le16(res);
        cmd_resp->access_type = cpu_to_le16(access);
        cmd_resp->res_number = cpu_to_le32(sdp_number);
        cmd_resp->timeout = cpu_to_le32(*timeout);
        *timeout = 0;

        status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);

        /* The completion specifies the maximum time in ms that the driver
         * may hold the resource in the Timeout field.
         */

        /* Global config lock response utilizes an additional status field.
         *
         * If the Global config lock resource is held by some other driver, the
         * command completes with ICE_AQ_RES_GLBL_IN_PROG in the status field
         * and the timeout field indicates the maximum time the current owner
         * of the resource has to free it.
         */
        if (res == ICE_GLOBAL_CFG_LOCK_RES_ID) {
                if (le16_to_cpu(cmd_resp->status) == ICE_AQ_RES_GLBL_SUCCESS) {
                        *timeout = le32_to_cpu(cmd_resp->timeout);
                        return 0;
                } else if (le16_to_cpu(cmd_resp->status) ==
                           ICE_AQ_RES_GLBL_IN_PROG) {
                        *timeout = le32_to_cpu(cmd_resp->timeout);
                        return ICE_ERR_AQ_ERROR;
                } else if (le16_to_cpu(cmd_resp->status) ==
                           ICE_AQ_RES_GLBL_DONE) {
                        return ICE_ERR_AQ_NO_WORK;
                }

                /* invalid FW response, force a timeout immediately */
                *timeout = 0;
                return ICE_ERR_AQ_ERROR;
        }

        /* If the resource is held by some other driver, the command completes
         * with a busy return value and the timeout field indicates the maximum
         * time the current owner of the resource has to free it.
         */
        if (!status || hw->adminq.sq_last_status == ICE_AQ_RC_EBUSY)
                *timeout = le32_to_cpu(cmd_resp->timeout);

        return status;
}

/**
 * ice_aq_release_res
 * @hw: pointer to the HW struct
 * @res: resource ID
 * @sdp_number: resource number
 * @cd: pointer to command details structure or NULL
 *
 * release common resource using the admin queue commands (0x0009)
 */
static enum ice_status
ice_aq_release_res(struct ice_hw *hw, enum ice_aq_res_ids res, u8 sdp_number,
                   struct ice_sq_cd *cd)
{
        struct ice_aqc_req_res *cmd;
        struct ice_aq_desc desc;

        cmd = &desc.params.res_owner;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_release_res);

        cmd->res_id = cpu_to_le16(res);
        cmd->res_number = cpu_to_le32(sdp_number);

        return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
}

/**
 * ice_acquire_res
 * @hw: pointer to the HW structure
 * @res: resource ID
 * @access: access type (read or write)
 * @timeout: timeout in milliseconds
 *
 * This function will attempt to acquire the ownership of a resource.
 */
enum ice_status
ice_acquire_res(struct ice_hw *hw, enum ice_aq_res_ids res,
                enum ice_aq_res_access_type access, u32 timeout)
{
#define ICE_RES_POLLING_DELAY_MS        10
        u32 delay = ICE_RES_POLLING_DELAY_MS;
        u32 time_left = timeout;
        enum ice_status status;

        status = ice_aq_req_res(hw, res, access, 0, &time_left, NULL);

        /* A return code of ICE_ERR_AQ_NO_WORK means that another driver has
         * previously acquired the resource and performed any necessary updates;
         * in this case the caller does not obtain the resource and has no
         * further work to do.
         */
        if (status == ICE_ERR_AQ_NO_WORK)
                goto ice_acquire_res_exit;

        if (status)
                ice_debug(hw, ICE_DBG_RES, "resource %d acquire type %d failed.\n", res, access);

        /* If necessary, poll until the current lock owner timeouts */
        timeout = time_left;
        while (status && timeout && time_left) {
                mdelay(delay);
                timeout = (timeout > delay) ? timeout - delay : 0;
                status = ice_aq_req_res(hw, res, access, 0, &time_left, NULL);

                if (status == ICE_ERR_AQ_NO_WORK)
                        /* lock free, but no work to do */
                        break;

                if (!status)
                        /* lock acquired */
                        break;
        }
        if (status && status != ICE_ERR_AQ_NO_WORK)
                ice_debug(hw, ICE_DBG_RES, "resource acquire timed out.\n");

ice_acquire_res_exit:
        if (status == ICE_ERR_AQ_NO_WORK) {
                if (access == ICE_RES_WRITE)
                        ice_debug(hw, ICE_DBG_RES, "resource indicates no work to do.\n");
                else
                        ice_debug(hw, ICE_DBG_RES, "Warning: ICE_ERR_AQ_NO_WORK not expected\n");
        }
        return status;
}

/**
 * ice_release_res
 * @hw: pointer to the HW structure
 * @res: resource ID
 *
 * This function will release a resource using the proper Admin Command.
 */
void ice_release_res(struct ice_hw *hw, enum ice_aq_res_ids res)
{
        enum ice_status status;
        u32 total_delay = 0;

        status = ice_aq_release_res(hw, res, 0, NULL);

        /* there are some rare cases when trying to release the resource
         * results in an admin queue timeout, so handle them correctly
         */
        while ((status == ICE_ERR_AQ_TIMEOUT) &&
               (total_delay < hw->adminq.sq_cmd_timeout)) {
                mdelay(1);
                status = ice_aq_release_res(hw, res, 0, NULL);
                total_delay++;
        }
}

/**
 * ice_aq_alloc_free_res - command to allocate/free resources
 * @hw: pointer to the HW struct
 * @num_entries: number of resource entries in buffer
 * @buf: Indirect buffer to hold data parameters and response
 * @buf_size: size of buffer for indirect commands
 * @opc: pass in the command opcode
 * @cd: pointer to command details structure or NULL
 *
 * Helper function to allocate/free resources using the admin queue commands
 */
enum ice_status
ice_aq_alloc_free_res(struct ice_hw *hw, u16 num_entries,
                      struct ice_aqc_alloc_free_res_elem *buf, u16 buf_size,
                      enum ice_adminq_opc opc, struct ice_sq_cd *cd)
{
        struct ice_aqc_alloc_free_res_cmd *cmd;
        struct ice_aq_desc desc;

        cmd = &desc.params.sw_res_ctrl;

        if (!buf)
                return ICE_ERR_PARAM;

        if (buf_size < flex_array_size(buf, elem, num_entries))
                return ICE_ERR_PARAM;

        ice_fill_dflt_direct_cmd_desc(&desc, opc);

        desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);

        cmd->num_entries = cpu_to_le16(num_entries);

        return ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
}

/**
 * ice_alloc_hw_res - allocate resource
 * @hw: pointer to the HW struct
 * @type: type of resource
 * @num: number of resources to allocate
 * @btm: allocate from bottom
 * @res: pointer to array that will receive the resources
 */
enum ice_status
ice_alloc_hw_res(struct ice_hw *hw, u16 type, u16 num, bool btm, u16 *res)
{
        struct ice_aqc_alloc_free_res_elem *buf;
        enum ice_status status;
        u16 buf_len;

        buf_len = struct_size(buf, elem, num);
        buf = kzalloc(buf_len, GFP_KERNEL);
        if (!buf)
                return ICE_ERR_NO_MEMORY;

        /* Prepare buffer to allocate resource. */
        buf->num_elems = cpu_to_le16(num);
        buf->res_type = cpu_to_le16(type | ICE_AQC_RES_TYPE_FLAG_DEDICATED |
                                    ICE_AQC_RES_TYPE_FLAG_IGNORE_INDEX);
        if (btm)
                buf->res_type |= cpu_to_le16(ICE_AQC_RES_TYPE_FLAG_SCAN_BOTTOM);

        status = ice_aq_alloc_free_res(hw, 1, buf, buf_len,
                                       ice_aqc_opc_alloc_res, NULL);
        if (status)
                goto ice_alloc_res_exit;

        memcpy(res, buf->elem, sizeof(*buf->elem) * num);

ice_alloc_res_exit:
        kfree(buf);
        return status;
}

/**
 * ice_free_hw_res - free allocated HW resource
 * @hw: pointer to the HW struct
 * @type: type of resource to free
 * @num: number of resources
 * @res: pointer to array that contains the resources to free
 */
enum ice_status ice_free_hw_res(struct ice_hw *hw, u16 type, u16 num, u16 *res)
{
        struct ice_aqc_alloc_free_res_elem *buf;
        enum ice_status status;
        u16 buf_len;

        buf_len = struct_size(buf, elem, num);
        buf = kzalloc(buf_len, GFP_KERNEL);
        if (!buf)
                return ICE_ERR_NO_MEMORY;

        /* Prepare buffer to free resource. */
        buf->num_elems = cpu_to_le16(num);
        buf->res_type = cpu_to_le16(type);
        memcpy(buf->elem, res, sizeof(*buf->elem) * num);

        status = ice_aq_alloc_free_res(hw, num, buf, buf_len,
                                       ice_aqc_opc_free_res, NULL);
        if (status)
                ice_debug(hw, ICE_DBG_SW, "CQ CMD Buffer:\n");

        kfree(buf);
        return status;
}

/**
 * ice_get_num_per_func - determine number of resources per PF
 * @hw: pointer to the HW structure
 * @max: value to be evenly split between each PF
 *
 * Determine the number of valid functions by going through the bitmap returned
 * from parsing capabilities and use this to calculate the number of resources
 * per PF based on the max value passed in.
 */
static u32 ice_get_num_per_func(struct ice_hw *hw, u32 max)
{
        u8 funcs;

#define ICE_CAPS_VALID_FUNCS_M  0xFF
        funcs = hweight8(hw->dev_caps.common_cap.valid_functions &
                         ICE_CAPS_VALID_FUNCS_M);

        if (!funcs)
                return 0;

        return max / funcs;
}

/**
 * ice_parse_common_caps - parse common device/function capabilities
 * @hw: pointer to the HW struct
 * @caps: pointer to common capabilities structure
 * @elem: the capability element to parse
 * @prefix: message prefix for tracing capabilities
 *
 * Given a capability element, extract relevant details into the common
 * capability structure.
 *
 * Returns: true if the capability matches one of the common capability ids,
 * false otherwise.
 */
static bool
ice_parse_common_caps(struct ice_hw *hw, struct ice_hw_common_caps *caps,
                      struct ice_aqc_list_caps_elem *elem, const char *prefix)
{
        u32 logical_id = le32_to_cpu(elem->logical_id);
        u32 phys_id = le32_to_cpu(elem->phys_id);
        u32 number = le32_to_cpu(elem->number);
        u16 cap = le16_to_cpu(elem->cap);
        bool found = true;

        switch (cap) {
        case ICE_AQC_CAPS_VALID_FUNCTIONS:
                caps->valid_functions = number;
                ice_debug(hw, ICE_DBG_INIT, "%s: valid_functions (bitmap) = %d\n", prefix,
                          caps->valid_functions);
                break;
        case ICE_AQC_CAPS_SRIOV:
                caps->sr_iov_1_1 = (number == 1);
                ice_debug(hw, ICE_DBG_INIT, "%s: sr_iov_1_1 = %d\n", prefix,
                          caps->sr_iov_1_1);
                break;
        case ICE_AQC_CAPS_DCB:
                caps->dcb = (number == 1);
                caps->active_tc_bitmap = logical_id;
                caps->maxtc = phys_id;
                ice_debug(hw, ICE_DBG_INIT, "%s: dcb = %d\n", prefix, caps->dcb);
                ice_debug(hw, ICE_DBG_INIT, "%s: active_tc_bitmap = %d\n", prefix,
                          caps->active_tc_bitmap);
                ice_debug(hw, ICE_DBG_INIT, "%s: maxtc = %d\n", prefix, caps->maxtc);
                break;
        case ICE_AQC_CAPS_RSS:
                caps->rss_table_size = number;
                caps->rss_table_entry_width = logical_id;
                ice_debug(hw, ICE_DBG_INIT, "%s: rss_table_size = %d\n", prefix,
                          caps->rss_table_size);
                ice_debug(hw, ICE_DBG_INIT, "%s: rss_table_entry_width = %d\n", prefix,
                          caps->rss_table_entry_width);
                break;
        case ICE_AQC_CAPS_RXQS:
                caps->num_rxq = number;
                caps->rxq_first_id = phys_id;
                ice_debug(hw, ICE_DBG_INIT, "%s: num_rxq = %d\n", prefix,
                          caps->num_rxq);
                ice_debug(hw, ICE_DBG_INIT, "%s: rxq_first_id = %d\n", prefix,
                          caps->rxq_first_id);
                break;
        case ICE_AQC_CAPS_TXQS:
                caps->num_txq = number;
                caps->txq_first_id = phys_id;
                ice_debug(hw, ICE_DBG_INIT, "%s: num_txq = %d\n", prefix,
                          caps->num_txq);
                ice_debug(hw, ICE_DBG_INIT, "%s: txq_first_id = %d\n", prefix,
                          caps->txq_first_id);
                break;
        case ICE_AQC_CAPS_MSIX:
                caps->num_msix_vectors = number;
                caps->msix_vector_first_id = phys_id;
                ice_debug(hw, ICE_DBG_INIT, "%s: num_msix_vectors = %d\n", prefix,
                          caps->num_msix_vectors);
                ice_debug(hw, ICE_DBG_INIT, "%s: msix_vector_first_id = %d\n", prefix,
                          caps->msix_vector_first_id);
                break;
        case ICE_AQC_CAPS_PENDING_NVM_VER:
                caps->nvm_update_pending_nvm = true;
                ice_debug(hw, ICE_DBG_INIT, "%s: update_pending_nvm\n", prefix);
                break;
        case ICE_AQC_CAPS_PENDING_OROM_VER:
                caps->nvm_update_pending_orom = true;

                ice_debug(hw, ICE_DBG_INIT, "%s: update_pending_orom\n", prefix);
                break;
        case ICE_AQC_CAPS_PENDING_NET_VER:
                caps->nvm_update_pending_netlist = true;
                ice_debug(hw, ICE_DBG_INIT, "%s: update_pending_netlist\n", prefix);
                break;
        case ICE_AQC_CAPS_NVM_MGMT:
                caps->nvm_unified_update =
                        (number & ICE_NVM_MGMT_UNIFIED_UPD_SUPPORT) ?
                        true : false;
                ice_debug(hw, ICE_DBG_INIT, "%s: nvm_unified_update = %d\n", prefix,
                          caps->nvm_unified_update);
                break;
        case ICE_AQC_CAPS_RDMA:
                caps->rdma = (number == 1);
                ice_debug(hw, ICE_DBG_INIT, "%s: rdma = %d\n", prefix, caps->rdma);
                break;
        case ICE_AQC_CAPS_MAX_MTU:
                caps->max_mtu = number;
                ice_debug(hw, ICE_DBG_INIT, "%s: max_mtu = %d\n",
                          prefix, caps->max_mtu);
                break;
        default:
                /* Not one of the recognized common capabilities */
                found = false;
        }

        return found;
}

/**
 * ice_recalc_port_limited_caps - Recalculate port limited capabilities
 * @hw: pointer to the HW structure
 * @caps: pointer to capabilities structure to fix
 *
 * Re-calculate the capabilities that are dependent on the number of physical
 * ports; i.e. some features are not supported or function differently on
 * devices with more than 4 ports.
 */
static void
ice_recalc_port_limited_caps(struct ice_hw *hw, struct ice_hw_common_caps *caps)
{
        /* This assumes device capabilities are always scanned before function
         * capabilities during the initialization flow.
         */
        if (hw->dev_caps.num_funcs > 4) {
                /* Max 4 TCs per port */
                caps->maxtc = 4;
                ice_debug(hw, ICE_DBG_INIT, "reducing maxtc to %d (based on #ports)\n",
                          caps->maxtc);
                if (caps->rdma) {
                        ice_debug(hw, ICE_DBG_INIT, "forcing RDMA off\n");
                        caps->rdma = 0;
                }

                /* print message only when processing device capabilities
                 * during initialization.
                 */
                if (caps == &hw->dev_caps.common_cap)
                        dev_info(ice_hw_to_dev(hw), "RDMA functionality is not available with the current device configuration.\n");
        }
}

/**
 * ice_parse_vf_func_caps - Parse ICE_AQC_CAPS_VF function caps
 * @hw: pointer to the HW struct
 * @func_p: pointer to function capabilities structure
 * @cap: pointer to the capability element to parse
 *
 * Extract function capabilities for ICE_AQC_CAPS_VF.
 */
static void
ice_parse_vf_func_caps(struct ice_hw *hw, struct ice_hw_func_caps *func_p,
                       struct ice_aqc_list_caps_elem *cap)
{
        u32 logical_id = le32_to_cpu(cap->logical_id);
        u32 number = le32_to_cpu(cap->number);

        func_p->num_allocd_vfs = number;
        func_p->vf_base_id = logical_id;
        ice_debug(hw, ICE_DBG_INIT, "func caps: num_allocd_vfs = %d\n",
                  func_p->num_allocd_vfs);
        ice_debug(hw, ICE_DBG_INIT, "func caps: vf_base_id = %d\n",
                  func_p->vf_base_id);
}

/**
 * ice_parse_vsi_func_caps - Parse ICE_AQC_CAPS_VSI function caps
 * @hw: pointer to the HW struct
 * @func_p: pointer to function capabilities structure
 * @cap: pointer to the capability element to parse
 *
 * Extract function capabilities for ICE_AQC_CAPS_VSI.
 */
static void
ice_parse_vsi_func_caps(struct ice_hw *hw, struct ice_hw_func_caps *func_p,
                        struct ice_aqc_list_caps_elem *cap)
{
        func_p->guar_num_vsi = ice_get_num_per_func(hw, ICE_MAX_VSI);
        ice_debug(hw, ICE_DBG_INIT, "func caps: guar_num_vsi (fw) = %d\n",
                  le32_to_cpu(cap->number));
        ice_debug(hw, ICE_DBG_INIT, "func caps: guar_num_vsi = %d\n",
                  func_p->guar_num_vsi);
}

/**
 * ice_parse_1588_func_caps - Parse ICE_AQC_CAPS_1588 function caps
 * @hw: pointer to the HW struct
 * @func_p: pointer to function capabilities structure
 * @cap: pointer to the capability element to parse
 *
 * Extract function capabilities for ICE_AQC_CAPS_1588.
 */
static void
ice_parse_1588_func_caps(struct ice_hw *hw, struct ice_hw_func_caps *func_p,
                         struct ice_aqc_list_caps_elem *cap)
{
        struct ice_ts_func_info *info = &func_p->ts_func_info;
        u32 number = le32_to_cpu(cap->number);

        info->ena = ((number & ICE_TS_FUNC_ENA_M) != 0);
        func_p->common_cap.ieee_1588 = info->ena;

        info->src_tmr_owned = ((number & ICE_TS_SRC_TMR_OWND_M) != 0);
        info->tmr_ena = ((number & ICE_TS_TMR_ENA_M) != 0);
        info->tmr_index_owned = ((number & ICE_TS_TMR_IDX_OWND_M) != 0);
        info->tmr_index_assoc = ((number & ICE_TS_TMR_IDX_ASSOC_M) != 0);

        info->clk_freq = (number & ICE_TS_CLK_FREQ_M) >> ICE_TS_CLK_FREQ_S;
        info->clk_src = ((number & ICE_TS_CLK_SRC_M) != 0);

        ice_debug(hw, ICE_DBG_INIT, "func caps: ieee_1588 = %u\n",
                  func_p->common_cap.ieee_1588);
        ice_debug(hw, ICE_DBG_INIT, "func caps: src_tmr_owned = %u\n",
                  info->src_tmr_owned);
        ice_debug(hw, ICE_DBG_INIT, "func caps: tmr_ena = %u\n",
                  info->tmr_ena);
        ice_debug(hw, ICE_DBG_INIT, "func caps: tmr_index_owned = %u\n",
                  info->tmr_index_owned);
        ice_debug(hw, ICE_DBG_INIT, "func caps: tmr_index_assoc = %u\n",
                  info->tmr_index_assoc);
        ice_debug(hw, ICE_DBG_INIT, "func caps: clk_freq = %u\n",
                  info->clk_freq);
        ice_debug(hw, ICE_DBG_INIT, "func caps: clk_src = %u\n",
                  info->clk_src);
}

/**
 * ice_parse_fdir_func_caps - Parse ICE_AQC_CAPS_FD function caps
 * @hw: pointer to the HW struct
 * @func_p: pointer to function capabilities structure
 *
 * Extract function capabilities for ICE_AQC_CAPS_FD.
 */
static void
ice_parse_fdir_func_caps(struct ice_hw *hw, struct ice_hw_func_caps *func_p)
{
        u32 reg_val, val;

        reg_val = rd32(hw, GLQF_FD_SIZE);
        val = (reg_val & GLQF_FD_SIZE_FD_GSIZE_M) >>
                GLQF_FD_SIZE_FD_GSIZE_S;
        func_p->fd_fltr_guar =
                ice_get_num_per_func(hw, val);
        val = (reg_val & GLQF_FD_SIZE_FD_BSIZE_M) >>
                GLQF_FD_SIZE_FD_BSIZE_S;
        func_p->fd_fltr_best_effort = val;

        ice_debug(hw, ICE_DBG_INIT, "func caps: fd_fltr_guar = %d\n",
                  func_p->fd_fltr_guar);
        ice_debug(hw, ICE_DBG_INIT, "func caps: fd_fltr_best_effort = %d\n",
                  func_p->fd_fltr_best_effort);
}

/**
 * ice_parse_func_caps - Parse function capabilities
 * @hw: pointer to the HW struct
 * @func_p: pointer to function capabilities structure
 * @buf: buffer containing the function capability records
 * @cap_count: the number of capabilities
 *
 * Helper function to parse function (0x000A) capabilities list. For
 * capabilities shared between device and function, this relies on
 * ice_parse_common_caps.
 *
 * Loop through the list of provided capabilities and extract the relevant
 * data into the function capabilities structured.
 */
static void
ice_parse_func_caps(struct ice_hw *hw, struct ice_hw_func_caps *func_p,
                    void *buf, u32 cap_count)
{
        struct ice_aqc_list_caps_elem *cap_resp;
        u32 i;

        cap_resp = buf;

        memset(func_p, 0, sizeof(*func_p));

        for (i = 0; i < cap_count; i++) {
                u16 cap = le16_to_cpu(cap_resp[i].cap);
                bool found;

                found = ice_parse_common_caps(hw, &func_p->common_cap,
                                              &cap_resp[i], "func caps");

                switch (cap) {
                case ICE_AQC_CAPS_VF:
                        ice_parse_vf_func_caps(hw, func_p, &cap_resp[i]);
                        break;
                case ICE_AQC_CAPS_VSI:
                        ice_parse_vsi_func_caps(hw, func_p, &cap_resp[i]);
                        break;
                case ICE_AQC_CAPS_1588:
                        ice_parse_1588_func_caps(hw, func_p, &cap_resp[i]);
                        break;
                case ICE_AQC_CAPS_FD:
                        ice_parse_fdir_func_caps(hw, func_p);
                        break;
                default:
                        /* Don't list common capabilities as unknown */
                        if (!found)
                                ice_debug(hw, ICE_DBG_INIT, "func caps: unknown capability[%d]: 0x%x\n",
                                          i, cap);
                        break;
                }
        }

        ice_recalc_port_limited_caps(hw, &func_p->common_cap);
}

/**
 * ice_parse_valid_functions_cap - Parse ICE_AQC_CAPS_VALID_FUNCTIONS caps
 * @hw: pointer to the HW struct
 * @dev_p: pointer to device capabilities structure
 * @cap: capability element to parse
 *
 * Parse ICE_AQC_CAPS_VALID_FUNCTIONS for device capabilities.
 */
static void
ice_parse_valid_functions_cap(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
                              struct ice_aqc_list_caps_elem *cap)
{
        u32 number = le32_to_cpu(cap->number);

        dev_p->num_funcs = hweight32(number);
        ice_debug(hw, ICE_DBG_INIT, "dev caps: num_funcs = %d\n",
                  dev_p->num_funcs);
}

/**
 * ice_parse_vf_dev_caps - Parse ICE_AQC_CAPS_VF device caps
 * @hw: pointer to the HW struct
 * @dev_p: pointer to device capabilities structure
 * @cap: capability element to parse
 *
 * Parse ICE_AQC_CAPS_VF for device capabilities.
 */
static void
ice_parse_vf_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
                      struct ice_aqc_list_caps_elem *cap)
{
        u32 number = le32_to_cpu(cap->number);

        dev_p->num_vfs_exposed = number;
        ice_debug(hw, ICE_DBG_INIT, "dev_caps: num_vfs_exposed = %d\n",
                  dev_p->num_vfs_exposed);
}

/**
 * ice_parse_vsi_dev_caps - Parse ICE_AQC_CAPS_VSI device caps
 * @hw: pointer to the HW struct
 * @dev_p: pointer to device capabilities structure
 * @cap: capability element to parse
 *
 * Parse ICE_AQC_CAPS_VSI for device capabilities.
 */
static void
ice_parse_vsi_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
                       struct ice_aqc_list_caps_elem *cap)
{
        u32 number = le32_to_cpu(cap->number);

        dev_p->num_vsi_allocd_to_host = number;
        ice_debug(hw, ICE_DBG_INIT, "dev caps: num_vsi_allocd_to_host = %d\n",
                  dev_p->num_vsi_allocd_to_host);
}

/**
 * ice_parse_1588_dev_caps - Parse ICE_AQC_CAPS_1588 device caps
 * @hw: pointer to the HW struct
 * @dev_p: pointer to device capabilities structure
 * @cap: capability element to parse
 *
 * Parse ICE_AQC_CAPS_1588 for device capabilities.
 */
static void
ice_parse_1588_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
                        struct ice_aqc_list_caps_elem *cap)
{
        struct ice_ts_dev_info *info = &dev_p->ts_dev_info;
        u32 logical_id = le32_to_cpu(cap->logical_id);
        u32 phys_id = le32_to_cpu(cap->phys_id);
        u32 number = le32_to_cpu(cap->number);

        info->ena = ((number & ICE_TS_DEV_ENA_M) != 0);
        dev_p->common_cap.ieee_1588 = info->ena;

        info->tmr0_owner = number & ICE_TS_TMR0_OWNR_M;
        info->tmr0_owned = ((number & ICE_TS_TMR0_OWND_M) != 0);
        info->tmr0_ena = ((number & ICE_TS_TMR0_ENA_M) != 0);

        info->tmr1_owner = (number & ICE_TS_TMR1_OWNR_M) >> ICE_TS_TMR1_OWNR_S;
        info->tmr1_owned = ((number & ICE_TS_TMR1_OWND_M) != 0);
        info->tmr1_ena = ((number & ICE_TS_TMR1_ENA_M) != 0);

        info->ena_ports = logical_id;
        info->tmr_own_map = phys_id;

        ice_debug(hw, ICE_DBG_INIT, "dev caps: ieee_1588 = %u\n",
                  dev_p->common_cap.ieee_1588);
        ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr0_owner = %u\n",
                  info->tmr0_owner);
        ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr0_owned = %u\n",
                  info->tmr0_owned);
        ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr0_ena = %u\n",
                  info->tmr0_ena);
        ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr1_owner = %u\n",
                  info->tmr1_owner);
        ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr1_owned = %u\n",
                  info->tmr1_owned);
        ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr1_ena = %u\n",
                  info->tmr1_ena);
        ice_debug(hw, ICE_DBG_INIT, "dev caps: ieee_1588 ena_ports = %u\n",
                  info->ena_ports);
        ice_debug(hw, ICE_DBG_INIT, "dev caps: tmr_own_map = %u\n",
                  info->tmr_own_map);
}

/**
 * ice_parse_fdir_dev_caps - Parse ICE_AQC_CAPS_FD device caps
 * @hw: pointer to the HW struct
 * @dev_p: pointer to device capabilities structure
 * @cap: capability element to parse
 *
 * Parse ICE_AQC_CAPS_FD for device capabilities.
 */
static void
ice_parse_fdir_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
                        struct ice_aqc_list_caps_elem *cap)
{
        u32 number = le32_to_cpu(cap->number);

        dev_p->num_flow_director_fltr = number;
        ice_debug(hw, ICE_DBG_INIT, "dev caps: num_flow_director_fltr = %d\n",
                  dev_p->num_flow_director_fltr);
}

/**
 * ice_parse_dev_caps - Parse device capabilities
 * @hw: pointer to the HW struct
 * @dev_p: pointer to device capabilities structure
 * @buf: buffer containing the device capability records
 * @cap_count: the number of capabilities
 *
 * Helper device to parse device (0x000B) capabilities list. For
 * capabilities shared between device and function, this relies on
 * ice_parse_common_caps.
 *
 * Loop through the list of provided capabilities and extract the relevant
 * data into the device capabilities structured.
 */
static void
ice_parse_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_p,
                   void *buf, u32 cap_count)
{
        struct ice_aqc_list_caps_elem *cap_resp;
        u32 i;

        cap_resp = buf;

        memset(dev_p, 0, sizeof(*dev_p));

        for (i = 0; i < cap_count; i++) {
                u16 cap = le16_to_cpu(cap_resp[i].cap);
                bool found;

                found = ice_parse_common_caps(hw, &dev_p->common_cap,
                                              &cap_resp[i], "dev caps");

                switch (cap) {
                case ICE_AQC_CAPS_VALID_FUNCTIONS:
                        ice_parse_valid_functions_cap(hw, dev_p, &cap_resp[i]);
                        break;
                case ICE_AQC_CAPS_VF:
                        ice_parse_vf_dev_caps(hw, dev_p, &cap_resp[i]);
                        break;
                case ICE_AQC_CAPS_VSI:
                        ice_parse_vsi_dev_caps(hw, dev_p, &cap_resp[i]);
                        break;
                case ICE_AQC_CAPS_1588:
                        ice_parse_1588_dev_caps(hw, dev_p, &cap_resp[i]);
                        break;
                case  ICE_AQC_CAPS_FD:
                        ice_parse_fdir_dev_caps(hw, dev_p, &cap_resp[i]);
                        break;
                default:
                        /* Don't list common capabilities as unknown */
                        if (!found)
                                ice_debug(hw, ICE_DBG_INIT, "dev caps: unknown capability[%d]: 0x%x\n",
                                          i, cap);
                        break;
                }
        }

        ice_recalc_port_limited_caps(hw, &dev_p->common_cap);
}

/**
 * ice_aq_list_caps - query function/device capabilities
 * @hw: pointer to the HW struct
 * @buf: a buffer to hold the capabilities
 * @buf_size: size of the buffer
 * @cap_count: if not NULL, set to the number of capabilities reported
 * @opc: capabilities type to discover, device or function
 * @cd: pointer to command details structure or NULL
 *
 * Get the function (0x000A) or device (0x000B) capabilities description from
 * firmware and store it in the buffer.
 *
 * If the cap_count pointer is not NULL, then it is set to the number of
 * capabilities firmware will report. Note that if the buffer size is too
 * small, it is possible the command will return ICE_AQ_ERR_ENOMEM. The
 * cap_count will still be updated in this case. It is recommended that the
 * buffer size be set to ICE_AQ_MAX_BUF_LEN (the largest possible buffer that
 * firmware could return) to avoid this.
 */
enum ice_status
ice_aq_list_caps(struct ice_hw *hw, void *buf, u16 buf_size, u32 *cap_count,
                 enum ice_adminq_opc opc, struct ice_sq_cd *cd)
{
        struct ice_aqc_list_caps *cmd;
        struct ice_aq_desc desc;
        enum ice_status status;

        cmd = &desc.params.get_cap;

        if (opc != ice_aqc_opc_list_func_caps &&
            opc != ice_aqc_opc_list_dev_caps)
                return ICE_ERR_PARAM;

        ice_fill_dflt_direct_cmd_desc(&desc, opc);
        status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);

        if (cap_count)
                *cap_count = le32_to_cpu(cmd->count);

        return status;
}

/**
 * ice_discover_dev_caps - Read and extract device capabilities
 * @hw: pointer to the hardware structure
 * @dev_caps: pointer to device capabilities structure
 *
 * Read the device capabilities and extract them into the dev_caps structure
 * for later use.
 */
enum ice_status
ice_discover_dev_caps(struct ice_hw *hw, struct ice_hw_dev_caps *dev_caps)
{
        enum ice_status status;
        u32 cap_count = 0;
        void *cbuf;

        cbuf = kzalloc(ICE_AQ_MAX_BUF_LEN, GFP_KERNEL);
        if (!cbuf)
                return ICE_ERR_NO_MEMORY;

        /* Although the driver doesn't know the number of capabilities the
         * device will return, we can simply send a 4KB buffer, the maximum
         * possible size that firmware can return.
         */
        cap_count = ICE_AQ_MAX_BUF_LEN / sizeof(struct ice_aqc_list_caps_elem);

        status = ice_aq_list_caps(hw, cbuf, ICE_AQ_MAX_BUF_LEN, &cap_count,
                                  ice_aqc_opc_list_dev_caps, NULL);
        if (!status)
                ice_parse_dev_caps(hw, dev_caps, cbuf, cap_count);
        kfree(cbuf);

        return status;
}

/**
 * ice_discover_func_caps - Read and extract function capabilities
 * @hw: pointer to the hardware structure
 * @func_caps: pointer to function capabilities structure
 *
 * Read the function capabilities and extract them into the func_caps structure
 * for later use.
 */
static enum ice_status
ice_discover_func_caps(struct ice_hw *hw, struct ice_hw_func_caps *func_caps)
{
        enum ice_status status;
        u32 cap_count = 0;
        void *cbuf;

        cbuf = kzalloc(ICE_AQ_MAX_BUF_LEN, GFP_KERNEL);
        if (!cbuf)
                return ICE_ERR_NO_MEMORY;

        /* Although the driver doesn't know the number of capabilities the
         * device will return, we can simply send a 4KB buffer, the maximum
         * possible size that firmware can return.
         */
        cap_count = ICE_AQ_MAX_BUF_LEN / sizeof(struct ice_aqc_list_caps_elem);

        status = ice_aq_list_caps(hw, cbuf, ICE_AQ_MAX_BUF_LEN, &cap_count,
                                  ice_aqc_opc_list_func_caps, NULL);
        if (!status)
                ice_parse_func_caps(hw, func_caps, cbuf, cap_count);
        kfree(cbuf);

        return status;
}

/**
 * ice_set_safe_mode_caps - Override dev/func capabilities when in safe mode
 * @hw: pointer to the hardware structure
 */
void ice_set_safe_mode_caps(struct ice_hw *hw)
{
        struct ice_hw_func_caps *func_caps = &hw->func_caps;
        struct ice_hw_dev_caps *dev_caps = &hw->dev_caps;
        struct ice_hw_common_caps cached_caps;
        u32 num_funcs;

        /* cache some func_caps values that should be restored after memset */
        cached_caps = func_caps->common_cap;

        /* unset func capabilities */
        memset(func_caps, 0, sizeof(*func_caps));

#define ICE_RESTORE_FUNC_CAP(name) \
        func_caps->common_cap.name = cached_caps.name

        /* restore cached values */
        ICE_RESTORE_FUNC_CAP(valid_functions);
        ICE_RESTORE_FUNC_CAP(txq_first_id);
        ICE_RESTORE_FUNC_CAP(rxq_first_id);
        ICE_RESTORE_FUNC_CAP(msix_vector_first_id);
        ICE_RESTORE_FUNC_CAP(max_mtu);
        ICE_RESTORE_FUNC_CAP(nvm_unified_update);
        ICE_RESTORE_FUNC_CAP(nvm_update_pending_nvm);
        ICE_RESTORE_FUNC_CAP(nvm_update_pending_orom);
        ICE_RESTORE_FUNC_CAP(nvm_update_pending_netlist);

        /* one Tx and one Rx queue in safe mode */
        func_caps->common_cap.num_rxq = 1;
        func_caps->common_cap.num_txq = 1;

        /* two MSIX vectors, one for traffic and one for misc causes */
        func_caps->common_cap.num_msix_vectors = 2;
        func_caps->guar_num_vsi = 1;

        /* cache some dev_caps values that should be restored after memset */
        cached_caps = dev_caps->common_cap;
        num_funcs = dev_caps->num_funcs;

        /* unset dev capabilities */
        memset(dev_caps, 0, sizeof(*dev_caps));

#define ICE_RESTORE_DEV_CAP(name) \
        dev_caps->common_cap.name = cached_caps.name

        /* restore cached values */
        ICE_RESTORE_DEV_CAP(valid_functions);
        ICE_RESTORE_DEV_CAP(txq_first_id);
        ICE_RESTORE_DEV_CAP(rxq_first_id);
        ICE_RESTORE_DEV_CAP(msix_vector_first_id);
        ICE_RESTORE_DEV_CAP(max_mtu);
        ICE_RESTORE_DEV_CAP(nvm_unified_update);
        ICE_RESTORE_DEV_CAP(nvm_update_pending_nvm);
        ICE_RESTORE_DEV_CAP(nvm_update_pending_orom);
        ICE_RESTORE_DEV_CAP(nvm_update_pending_netlist);
        dev_caps->num_funcs = num_funcs;

        /* one Tx and one Rx queue per function in safe mode */
        dev_caps->common_cap.num_rxq = num_funcs;
        dev_caps->common_cap.num_txq = num_funcs;

        /* two MSIX vectors per function */
        dev_caps->common_cap.num_msix_vectors = 2 * num_funcs;
}

/**
 * ice_get_caps - get info about the HW
 * @hw: pointer to the hardware structure
 */
enum ice_status ice_get_caps(struct ice_hw *hw)
{
        enum ice_status status;

        status = ice_discover_dev_caps(hw, &hw->dev_caps);
        if (status)
                return status;

        return ice_discover_func_caps(hw, &hw->func_caps);
}

/**
 * ice_aq_manage_mac_write - manage MAC address write command
 * @hw: pointer to the HW struct
 * @mac_addr: MAC address to be written as LAA/LAA+WoL/Port address
 * @flags: flags to control write behavior
 * @cd: pointer to command details structure or NULL
 *
 * This function is used to write MAC address to the NVM (0x0108).
 */
enum ice_status
ice_aq_manage_mac_write(struct ice_hw *hw, const u8 *mac_addr, u8 flags,
                        struct ice_sq_cd *cd)
{
        struct ice_aqc_manage_mac_write *cmd;
        struct ice_aq_desc desc;

        cmd = &desc.params.mac_write;
        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_manage_mac_write);

        cmd->flags = flags;
        ether_addr_copy(cmd->mac_addr, mac_addr);

        return ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
}

/**
 * ice_aq_clear_pxe_mode
 * @hw: pointer to the HW struct
 *
 * Tell the firmware that the driver is taking over from PXE (0x0110).
 */
static enum ice_status ice_aq_clear_pxe_mode(struct ice_hw *hw)
{
        struct ice_aq_desc desc;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_clear_pxe_mode);
        desc.params.clear_pxe.rx_cnt = ICE_AQC_CLEAR_PXE_RX_CNT;

        return ice_aq_send_cmd(hw, &desc, NULL, 0, NULL);
}

/**
 * ice_clear_pxe_mode - clear pxe operations mode
 * @hw: pointer to the HW struct
 *
 * Make sure all PXE mode settings are cleared, including things
 * like descriptor fetch/write-back mode.
 */
void ice_clear_pxe_mode(struct ice_hw *hw)
{
        if (ice_check_sq_alive(hw, &hw->adminq))
                ice_aq_clear_pxe_mode(hw);
}

/**
 * ice_get_link_speed_based_on_phy_type - returns link speed
 * @phy_type_low: lower part of phy_type
 * @phy_type_high: higher part of phy_type
 *
 * This helper function will convert an entry in PHY type structure
 * [phy_type_low, phy_type_high] to its corresponding link speed.
 * Note: In the structure of [phy_type_low, phy_type_high], there should
 * be one bit set, as this function will convert one PHY type to its
 * speed.
 * If no bit gets set, ICE_LINK_SPEED_UNKNOWN will be returned
 * If more than one bit gets set, ICE_LINK_SPEED_UNKNOWN will be returned
 */
static u16
ice_get_link_speed_based_on_phy_type(u64 phy_type_low, u64 phy_type_high)
{
        u16 speed_phy_type_high = ICE_AQ_LINK_SPEED_UNKNOWN;
        u16 speed_phy_type_low = ICE_AQ_LINK_SPEED_UNKNOWN;

        switch (phy_type_low) {
        case ICE_PHY_TYPE_LOW_100BASE_TX:
        case ICE_PHY_TYPE_LOW_100M_SGMII:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_100MB;
                break;
        case ICE_PHY_TYPE_LOW_1000BASE_T:
        case ICE_PHY_TYPE_LOW_1000BASE_SX:
        case ICE_PHY_TYPE_LOW_1000BASE_LX:
        case ICE_PHY_TYPE_LOW_1000BASE_KX:
        case ICE_PHY_TYPE_LOW_1G_SGMII:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_1000MB;
                break;
        case ICE_PHY_TYPE_LOW_2500BASE_T:
        case ICE_PHY_TYPE_LOW_2500BASE_X:
        case ICE_PHY_TYPE_LOW_2500BASE_KX:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_2500MB;
                break;
        case ICE_PHY_TYPE_LOW_5GBASE_T:
        case ICE_PHY_TYPE_LOW_5GBASE_KR:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_5GB;
                break;
        case ICE_PHY_TYPE_LOW_10GBASE_T:
        case ICE_PHY_TYPE_LOW_10G_SFI_DA:
        case ICE_PHY_TYPE_LOW_10GBASE_SR:
        case ICE_PHY_TYPE_LOW_10GBASE_LR:
        case ICE_PHY_TYPE_LOW_10GBASE_KR_CR1:
        case ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC:
        case ICE_PHY_TYPE_LOW_10G_SFI_C2C:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_10GB;
                break;
        case ICE_PHY_TYPE_LOW_25GBASE_T:
        case ICE_PHY_TYPE_LOW_25GBASE_CR:
        case ICE_PHY_TYPE_LOW_25GBASE_CR_S:
        case ICE_PHY_TYPE_LOW_25GBASE_CR1:
        case ICE_PHY_TYPE_LOW_25GBASE_SR:
        case ICE_PHY_TYPE_LOW_25GBASE_LR:
        case ICE_PHY_TYPE_LOW_25GBASE_KR:
        case ICE_PHY_TYPE_LOW_25GBASE_KR_S:
        case ICE_PHY_TYPE_LOW_25GBASE_KR1:
        case ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC:
        case ICE_PHY_TYPE_LOW_25G_AUI_C2C:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_25GB;
                break;
        case ICE_PHY_TYPE_LOW_40GBASE_CR4:
        case ICE_PHY_TYPE_LOW_40GBASE_SR4:
        case ICE_PHY_TYPE_LOW_40GBASE_LR4:
        case ICE_PHY_TYPE_LOW_40GBASE_KR4:
        case ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC:
        case ICE_PHY_TYPE_LOW_40G_XLAUI:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_40GB;
                break;
        case ICE_PHY_TYPE_LOW_50GBASE_CR2:
        case ICE_PHY_TYPE_LOW_50GBASE_SR2:
        case ICE_PHY_TYPE_LOW_50GBASE_LR2:
        case ICE_PHY_TYPE_LOW_50GBASE_KR2:
        case ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC:
        case ICE_PHY_TYPE_LOW_50G_LAUI2:
        case ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC:
        case ICE_PHY_TYPE_LOW_50G_AUI2:
        case ICE_PHY_TYPE_LOW_50GBASE_CP:
        case ICE_PHY_TYPE_LOW_50GBASE_SR:
        case ICE_PHY_TYPE_LOW_50GBASE_FR:
        case ICE_PHY_TYPE_LOW_50GBASE_LR:
        case ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4:
        case ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC:
        case ICE_PHY_TYPE_LOW_50G_AUI1:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_50GB;
                break;
        case ICE_PHY_TYPE_LOW_100GBASE_CR4:
        case ICE_PHY_TYPE_LOW_100GBASE_SR4:
        case ICE_PHY_TYPE_LOW_100GBASE_LR4:
        case ICE_PHY_TYPE_LOW_100GBASE_KR4:
        case ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC:
        case ICE_PHY_TYPE_LOW_100G_CAUI4:
        case ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC:
        case ICE_PHY_TYPE_LOW_100G_AUI4:
        case ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4:
        case ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4:
        case ICE_PHY_TYPE_LOW_100GBASE_CP2:
        case ICE_PHY_TYPE_LOW_100GBASE_SR2:
        case ICE_PHY_TYPE_LOW_100GBASE_DR:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_100GB;
                break;
        default:
                speed_phy_type_low = ICE_AQ_LINK_SPEED_UNKNOWN;
                break;
        }

        switch (phy_type_high) {
        case ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4:
        case ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC:
        case ICE_PHY_TYPE_HIGH_100G_CAUI2:
        case ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC:
        case ICE_PHY_TYPE_HIGH_100G_AUI2:
                speed_phy_type_high = ICE_AQ_LINK_SPEED_100GB;
                break;
        default:
                speed_phy_type_high = ICE_AQ_LINK_SPEED_UNKNOWN;
                break;
        }

        if (speed_phy_type_low == ICE_AQ_LINK_SPEED_UNKNOWN &&
            speed_phy_type_high == ICE_AQ_LINK_SPEED_UNKNOWN)
                return ICE_AQ_LINK_SPEED_UNKNOWN;
        else if (speed_phy_type_low != ICE_AQ_LINK_SPEED_UNKNOWN &&
                 speed_phy_type_high != ICE_AQ_LINK_SPEED_UNKNOWN)
                return ICE_AQ_LINK_SPEED_UNKNOWN;
        else if (speed_phy_type_low != ICE_AQ_LINK_SPEED_UNKNOWN &&
                 speed_phy_type_high == ICE_AQ_LINK_SPEED_UNKNOWN)
                return speed_phy_type_low;
        else
                return speed_phy_type_high;
}

/**
 * ice_update_phy_type
 * @phy_type_low: pointer to the lower part of phy_type
 * @phy_type_high: pointer to the higher part of phy_type
 * @link_speeds_bitmap: targeted link speeds bitmap
 *
 * Note: For the link_speeds_bitmap structure, you can check it at
 * [ice_aqc_get_link_status->link_speed]. Caller can pass in
 * link_speeds_bitmap include multiple speeds.
 *
 * Each entry in this [phy_type_low, phy_type_high] structure will
 * present a certain link speed. This helper function will turn on bits
 * in [phy_type_low, phy_type_high] structure based on the value of
 * link_speeds_bitmap input parameter.
 */
void
ice_update_phy_type(u64 *phy_type_low, u64 *phy_type_high,
                    u16 link_speeds_bitmap)
{
        u64 pt_high;
        u64 pt_low;
        int index;
        u16 speed;

        /* We first check with low part of phy_type */
        for (index = 0; index <= ICE_PHY_TYPE_LOW_MAX_INDEX; index++) {
                pt_low = BIT_ULL(index);
                speed = ice_get_link_speed_based_on_phy_type(pt_low, 0);

                if (link_speeds_bitmap & speed)
                        *phy_type_low |= BIT_ULL(index);
        }

        /* We then check with high part of phy_type */
        for (index = 0; index <= ICE_PHY_TYPE_HIGH_MAX_INDEX; index++) {
                pt_high = BIT_ULL(index);
                speed = ice_get_link_speed_based_on_phy_type(0, pt_high);

                if (link_speeds_bitmap & speed)
                        *phy_type_high |= BIT_ULL(index);
        }
}

/**
 * ice_aq_set_phy_cfg
 * @hw: pointer to the HW struct
 * @pi: port info structure of the interested logical port
 * @cfg: structure with PHY configuration data to be set
 * @cd: pointer to command details structure or NULL
 *
 * Set the various PHY configuration parameters supported on the Port.
 * One or more of the Set PHY config parameters may be ignored in an MFP
 * mode as the PF may not have the privilege to set some of the PHY Config
 * parameters. This status will be indicated by the command response (0x0601).
 */
enum ice_status
ice_aq_set_phy_cfg(struct ice_hw *hw, struct ice_port_info *pi,
                   struct ice_aqc_set_phy_cfg_data *cfg, struct ice_sq_cd *cd)
{
        struct ice_aq_desc desc;
        enum ice_status status;

        if (!cfg)
                return ICE_ERR_PARAM;

        /* Ensure that only valid bits of cfg->caps can be turned on. */
        if (cfg->caps & ~ICE_AQ_PHY_ENA_VALID_MASK) {
                ice_debug(hw, ICE_DBG_PHY, "Invalid bit is set in ice_aqc_set_phy_cfg_data->caps : 0x%x\n",
                          cfg->caps);

                cfg->caps &= ICE_AQ_PHY_ENA_VALID_MASK;
        }

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_phy_cfg);
        desc.params.set_phy.lport_num = pi->lport;
        desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);

        ice_debug(hw, ICE_DBG_LINK, "set phy cfg\n");
        ice_debug(hw, ICE_DBG_LINK, "   phy_type_low = 0x%llx\n",
                  (unsigned long long)le64_to_cpu(cfg->phy_type_low));
        ice_debug(hw, ICE_DBG_LINK, "   phy_type_high = 0x%llx\n",
                  (unsigned long long)le64_to_cpu(cfg->phy_type_high));
        ice_debug(hw, ICE_DBG_LINK, "   caps = 0x%x\n", cfg->caps);
        ice_debug(hw, ICE_DBG_LINK, "   low_power_ctrl_an = 0x%x\n",
                  cfg->low_power_ctrl_an);
        ice_debug(hw, ICE_DBG_LINK, "   eee_cap = 0x%x\n", cfg->eee_cap);
        ice_debug(hw, ICE_DBG_LINK, "   eeer_value = 0x%x\n", cfg->eeer_value);
        ice_debug(hw, ICE_DBG_LINK, "   link_fec_opt = 0x%x\n",
                  cfg->link_fec_opt);

        status = ice_aq_send_cmd(hw, &desc, cfg, sizeof(*cfg), cd);
        if (hw->adminq.sq_last_status == ICE_AQ_RC_EMODE)
                status = 0;

        if (!status)
                pi->phy.curr_user_phy_cfg = *cfg;

        return status;
}

/**
 * ice_update_link_info - update status of the HW network link
 * @pi: port info structure of the interested logical port
 */
enum ice_status ice_update_link_info(struct ice_port_info *pi)
{
        struct ice_link_status *li;
        enum ice_status status;

        if (!pi)
                return ICE_ERR_PARAM;

        li = &pi->phy.link_info;

        status = ice_aq_get_link_info(pi, true, NULL, NULL);
        if (status)
                return status;

        if (li->link_info & ICE_AQ_MEDIA_AVAILABLE) {
                struct ice_aqc_get_phy_caps_data *pcaps;
                struct ice_hw *hw;

                hw = pi->hw;
                pcaps = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*pcaps),
                                     GFP_KERNEL);
                if (!pcaps)
                        return ICE_ERR_NO_MEMORY;

                status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA,
                                             pcaps, NULL);

                devm_kfree(ice_hw_to_dev(hw), pcaps);
        }

        return status;
}

/**
 * ice_cache_phy_user_req
 * @pi: port information structure
 * @cache_data: PHY logging data
 * @cache_mode: PHY logging mode
 *
 * Log the user request on (FC, FEC, SPEED) for later use.
 */
static void
ice_cache_phy_user_req(struct ice_port_info *pi,
                       struct ice_phy_cache_mode_data cache_data,
                       enum ice_phy_cache_mode cache_mode)
{
        if (!pi)
                return;

        switch (cache_mode) {
        case ICE_FC_MODE:
                pi->phy.curr_user_fc_req = cache_data.data.curr_user_fc_req;
                break;
        case ICE_SPEED_MODE:
                pi->phy.curr_user_speed_req =
                        cache_data.data.curr_user_speed_req;
                break;
        case ICE_FEC_MODE:
                pi->phy.curr_user_fec_req = cache_data.data.curr_user_fec_req;
                break;
        default:
                break;
        }
}

/**
 * ice_caps_to_fc_mode
 * @caps: PHY capabilities
 *
 * Convert PHY FC capabilities to ice FC mode
 */
enum ice_fc_mode ice_caps_to_fc_mode(u8 caps)
{
        if (caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE &&
            caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)
                return ICE_FC_FULL;

        if (caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE)
                return ICE_FC_TX_PAUSE;

        if (caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)
                return ICE_FC_RX_PAUSE;

        return ICE_FC_NONE;
}

/**
 * ice_caps_to_fec_mode
 * @caps: PHY capabilities
 * @fec_options: Link FEC options
 *
 * Convert PHY FEC capabilities to ice FEC mode
 */
enum ice_fec_mode ice_caps_to_fec_mode(u8 caps, u8 fec_options)
{
        if (caps & ICE_AQC_PHY_EN_AUTO_FEC)
                return ICE_FEC_AUTO;