Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

[linux.git] / drivers / net / ethernet / intel / ice / ice_ddp.c

// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2022, Intel Corporation. */

#include "ice_common.h"
#include "ice.h"
#include "ice_ddp.h"

/* For supporting double VLAN mode, it is necessary to enable or disable certain
 * boost tcam entries. The metadata labels names that match the following
 * prefixes will be saved to allow enabling double VLAN mode.
 */
#define ICE_DVM_PRE "BOOST_MAC_VLAN_DVM" /* enable these entries */
#define ICE_SVM_PRE "BOOST_MAC_VLAN_SVM" /* disable these entries */

/* To support tunneling entries by PF, the package will append the PF number to
 * the label; for example TNL_VXLAN_PF0, TNL_VXLAN_PF1, TNL_VXLAN_PF2, etc.
 */
#define ICE_TNL_PRE "TNL_"
static const struct ice_tunnel_type_scan tnls[] = {
        { TNL_VXLAN, "TNL_VXLAN_PF" },
        { TNL_GENEVE, "TNL_GENEVE_PF" },
        { TNL_LAST, "" }
};

/**
 * ice_verify_pkg - verify package
 * @pkg: pointer to the package buffer
 * @len: size of the package buffer
 *
 * Verifies various attributes of the package file, including length, format
 * version, and the requirement of at least one segment.
 */
static enum ice_ddp_state ice_verify_pkg(struct ice_pkg_hdr *pkg, u32 len)
{
        u32 seg_count;
        u32 i;

        if (len < struct_size(pkg, seg_offset, 1))
                return ICE_DDP_PKG_INVALID_FILE;

        if (pkg->pkg_format_ver.major != ICE_PKG_FMT_VER_MAJ ||
            pkg->pkg_format_ver.minor != ICE_PKG_FMT_VER_MNR ||
            pkg->pkg_format_ver.update != ICE_PKG_FMT_VER_UPD ||
            pkg->pkg_format_ver.draft != ICE_PKG_FMT_VER_DFT)
                return ICE_DDP_PKG_INVALID_FILE;

        /* pkg must have at least one segment */
        seg_count = le32_to_cpu(pkg->seg_count);
        if (seg_count < 1)
                return ICE_DDP_PKG_INVALID_FILE;

        /* make sure segment array fits in package length */
        if (len < struct_size(pkg, seg_offset, seg_count))
                return ICE_DDP_PKG_INVALID_FILE;

        /* all segments must fit within length */
        for (i = 0; i < seg_count; i++) {
                u32 off = le32_to_cpu(pkg->seg_offset[i]);
                struct ice_generic_seg_hdr *seg;

                /* segment header must fit */
                if (len < off + sizeof(*seg))
                        return ICE_DDP_PKG_INVALID_FILE;

                seg = (struct ice_generic_seg_hdr *)((u8 *)pkg + off);

                /* segment body must fit */
                if (len < off + le32_to_cpu(seg->seg_size))
                        return ICE_DDP_PKG_INVALID_FILE;
        }

        return ICE_DDP_PKG_SUCCESS;
}

/**
 * ice_free_seg - free package segment pointer
 * @hw: pointer to the hardware structure
 *
 * Frees the package segment pointer in the proper manner, depending on if the
 * segment was allocated or just the passed in pointer was stored.
 */
void ice_free_seg(struct ice_hw *hw)
{
        if (hw->pkg_copy) {
                devm_kfree(ice_hw_to_dev(hw), hw->pkg_copy);
                hw->pkg_copy = NULL;
                hw->pkg_size = 0;
        }
        hw->seg = NULL;
}

/**
 * ice_chk_pkg_version - check package version for compatibility with driver
 * @pkg_ver: pointer to a version structure to check
 *
 * Check to make sure that the package about to be downloaded is compatible with
 * the driver. To be compatible, the major and minor components of the package
 * version must match our ICE_PKG_SUPP_VER_MAJ and ICE_PKG_SUPP_VER_MNR
 * definitions.
 */
static enum ice_ddp_state ice_chk_pkg_version(struct ice_pkg_ver *pkg_ver)
{
        if (pkg_ver->major > ICE_PKG_SUPP_VER_MAJ ||
            (pkg_ver->major == ICE_PKG_SUPP_VER_MAJ &&
             pkg_ver->minor > ICE_PKG_SUPP_VER_MNR))
                return ICE_DDP_PKG_FILE_VERSION_TOO_HIGH;
        else if (pkg_ver->major < ICE_PKG_SUPP_VER_MAJ ||
                 (pkg_ver->major == ICE_PKG_SUPP_VER_MAJ &&
                  pkg_ver->minor < ICE_PKG_SUPP_VER_MNR))
                return ICE_DDP_PKG_FILE_VERSION_TOO_LOW;

        return ICE_DDP_PKG_SUCCESS;
}

/**
 * ice_pkg_val_buf
 * @buf: pointer to the ice buffer
 *
 * This helper function validates a buffer's header.
 */
static struct ice_buf_hdr *ice_pkg_val_buf(struct ice_buf *buf)
{
        struct ice_buf_hdr *hdr;
        u16 section_count;
        u16 data_end;

        hdr = (struct ice_buf_hdr *)buf->buf;
        /* verify data */
        section_count = le16_to_cpu(hdr->section_count);
        if (section_count < ICE_MIN_S_COUNT || section_count > ICE_MAX_S_COUNT)
                return NULL;

        data_end = le16_to_cpu(hdr->data_end);
        if (data_end < ICE_MIN_S_DATA_END || data_end > ICE_MAX_S_DATA_END)
                return NULL;

        return hdr;
}

/**
 * ice_find_buf_table
 * @ice_seg: pointer to the ice segment
 *
 * Returns the address of the buffer table within the ice segment.
 */
static struct ice_buf_table *ice_find_buf_table(struct ice_seg *ice_seg)
{
        struct ice_nvm_table *nvms = (struct ice_nvm_table *)
                (ice_seg->device_table + le32_to_cpu(ice_seg->device_table_count));

        return (__force struct ice_buf_table *)(nvms->vers +
                                                le32_to_cpu(nvms->table_count));
}

/**
 * ice_pkg_enum_buf
 * @ice_seg: pointer to the ice segment (or NULL on subsequent calls)
 * @state: pointer to the enum state
 *
 * This function will enumerate all the buffers in the ice segment. The first
 * call is made with the ice_seg parameter non-NULL; on subsequent calls,
 * ice_seg is set to NULL which continues the enumeration. When the function
 * returns a NULL pointer, then the end of the buffers has been reached, or an
 * unexpected value has been detected (for example an invalid section count or
 * an invalid buffer end value).
 */
static struct ice_buf_hdr *ice_pkg_enum_buf(struct ice_seg *ice_seg,
                                            struct ice_pkg_enum *state)
{
        if (ice_seg) {
                state->buf_table = ice_find_buf_table(ice_seg);
                if (!state->buf_table)
                        return NULL;

                state->buf_idx = 0;
                return ice_pkg_val_buf(state->buf_table->buf_array);
        }

        if (++state->buf_idx < le32_to_cpu(state->buf_table->buf_count))
                return ice_pkg_val_buf(state->buf_table->buf_array +
                                       state->buf_idx);
        else
                return NULL;
}

/**
 * ice_pkg_advance_sect
 * @ice_seg: pointer to the ice segment (or NULL on subsequent calls)
 * @state: pointer to the enum state
 *
 * This helper function will advance the section within the ice segment,
 * also advancing the buffer if needed.
 */
static bool ice_pkg_advance_sect(struct ice_seg *ice_seg,
                                 struct ice_pkg_enum *state)
{
        if (!ice_seg && !state->buf)
                return false;

        if (!ice_seg && state->buf)
                if (++state->sect_idx < le16_to_cpu(state->buf->section_count))
                        return true;

        state->buf = ice_pkg_enum_buf(ice_seg, state);
        if (!state->buf)
                return false;

        /* start of new buffer, reset section index */
        state->sect_idx = 0;
        return true;
}

/**
 * ice_pkg_enum_section
 * @ice_seg: pointer to the ice segment (or NULL on subsequent calls)
 * @state: pointer to the enum state
 * @sect_type: section type to enumerate
 *
 * This function will enumerate all the sections of a particular type in the
 * ice segment. The first call is made with the ice_seg parameter non-NULL;
 * on subsequent calls, ice_seg is set to NULL which continues the enumeration.
 * When the function returns a NULL pointer, then the end of the matching
 * sections has been reached.
 */
void *ice_pkg_enum_section(struct ice_seg *ice_seg, struct ice_pkg_enum *state,
                           u32 sect_type)
{
        u16 offset, size;

        if (ice_seg)
                state->type = sect_type;

        if (!ice_pkg_advance_sect(ice_seg, state))
                return NULL;

        /* scan for next matching section */
        while (state->buf->section_entry[state->sect_idx].type !=
               cpu_to_le32(state->type))
                if (!ice_pkg_advance_sect(NULL, state))
                        return NULL;

        /* validate section */
        offset = le16_to_cpu(state->buf->section_entry[state->sect_idx].offset);
        if (offset < ICE_MIN_S_OFF || offset > ICE_MAX_S_OFF)
                return NULL;

        size = le16_to_cpu(state->buf->section_entry[state->sect_idx].size);
        if (size < ICE_MIN_S_SZ || size > ICE_MAX_S_SZ)
                return NULL;

        /* make sure the section fits in the buffer */
        if (offset + size > ICE_PKG_BUF_SIZE)
                return NULL;

        state->sect_type =
                le32_to_cpu(state->buf->section_entry[state->sect_idx].type);

        /* calc pointer to this section */
        state->sect =
                ((u8 *)state->buf) +
                le16_to_cpu(state->buf->section_entry[state->sect_idx].offset);

        return state->sect;
}

/**
 * ice_pkg_enum_entry
 * @ice_seg: pointer to the ice segment (or NULL on subsequent calls)
 * @state: pointer to the enum state
 * @sect_type: section type to enumerate
 * @offset: pointer to variable that receives the offset in the table (optional)
 * @handler: function that handles access to the entries into the section type
 *
 * This function will enumerate all the entries in particular section type in
 * the ice segment. The first call is made with the ice_seg parameter non-NULL;
 * on subsequent calls, ice_seg is set to NULL which continues the enumeration.
 * When the function returns a NULL pointer, then the end of the entries has
 * been reached.
 *
 * Since each section may have a different header and entry size, the handler
 * function is needed to determine the number and location entries in each
 * section.
 *
 * The offset parameter is optional, but should be used for sections that
 * contain an offset for each section table. For such cases, the section handler
 * function must return the appropriate offset + index to give the absolution
 * offset for each entry. For example, if the base for a section's header
 * indicates a base offset of 10, and the index for the entry is 2, then
 * section handler function should set the offset to 10 + 2 = 12.
 */
static void *ice_pkg_enum_entry(struct ice_seg *ice_seg,
                                struct ice_pkg_enum *state, u32 sect_type,
                                u32 *offset,
                                void *(*handler)(u32 sect_type, void *section,
                                                 u32 index, u32 *offset))
{
        void *entry;

        if (ice_seg) {
                if (!handler)
                        return NULL;

                if (!ice_pkg_enum_section(ice_seg, state, sect_type))
                        return NULL;

                state->entry_idx = 0;
                state->handler = handler;
        } else {
                state->entry_idx++;
        }

        if (!state->handler)
                return NULL;

        /* get entry */
        entry = state->handler(state->sect_type, state->sect, state->entry_idx,
                               offset);
        if (!entry) {
                /* end of a section, look for another section of this type */
                if (!ice_pkg_enum_section(NULL, state, 0))
                        return NULL;

                state->entry_idx = 0;
                entry = state->handler(state->sect_type, state->sect,
                                       state->entry_idx, offset);
        }

        return entry;
}

/**
 * ice_sw_fv_handler
 * @sect_type: section type
 * @section: pointer to section
 * @index: index of the field vector entry to be returned
 * @offset: ptr to variable that receives the offset in the field vector table
 *
 * This is a callback function that can be passed to ice_pkg_enum_entry.
 * This function treats the given section as of type ice_sw_fv_section and
 * enumerates offset field. "offset" is an index into the field vector table.
 */
static void *ice_sw_fv_handler(u32 sect_type, void *section, u32 index,
                               u32 *offset)
{
        struct ice_sw_fv_section *fv_section = section;

        if (!section || sect_type != ICE_SID_FLD_VEC_SW)
                return NULL;
        if (index >= le16_to_cpu(fv_section->count))
                return NULL;
        if (offset)
                /* "index" passed in to this function is relative to a given
                 * 4k block. To get to the true index into the field vector
                 * table need to add the relative index to the base_offset
                 * field of this section
                 */
                *offset = le16_to_cpu(fv_section->base_offset) + index;
        return fv_section->fv + index;
}

/**
 * ice_get_prof_index_max - get the max profile index for used profile
 * @hw: pointer to the HW struct
 *
 * Calling this function will get the max profile index for used profile
 * and store the index number in struct ice_switch_info *switch_info
 * in HW for following use.
 */
static int ice_get_prof_index_max(struct ice_hw *hw)
{
        u16 prof_index = 0, j, max_prof_index = 0;
        struct ice_pkg_enum state;
        struct ice_seg *ice_seg;
        bool flag = false;
        struct ice_fv *fv;
        u32 offset;

        memset(&state, 0, sizeof(state));

        if (!hw->seg)
                return -EINVAL;

        ice_seg = hw->seg;

        do {
                fv = ice_pkg_enum_entry(ice_seg, &state, ICE_SID_FLD_VEC_SW,
                                        &offset, ice_sw_fv_handler);
                if (!fv)
                        break;
                ice_seg = NULL;

                /* in the profile that not be used, the prot_id is set to 0xff
                 * and the off is set to 0x1ff for all the field vectors.
                 */
                for (j = 0; j < hw->blk[ICE_BLK_SW].es.fvw; j++)
                        if (fv->ew[j].prot_id != ICE_PROT_INVALID ||
                            fv->ew[j].off != ICE_FV_OFFSET_INVAL)
                                flag = true;
                if (flag && prof_index > max_prof_index)
                        max_prof_index = prof_index;

                prof_index++;
                flag = false;
        } while (fv);

        hw->switch_info->max_used_prof_index = max_prof_index;

        return 0;
}

/**
 * ice_get_ddp_pkg_state - get DDP pkg state after download
 * @hw: pointer to the HW struct
 * @already_loaded: indicates if pkg was already loaded onto the device
 */
static enum ice_ddp_state ice_get_ddp_pkg_state(struct ice_hw *hw,
                                                bool already_loaded)
{
        if (hw->pkg_ver.major == hw->active_pkg_ver.major &&
            hw->pkg_ver.minor == hw->active_pkg_ver.minor &&
            hw->pkg_ver.update == hw->active_pkg_ver.update &&
            hw->pkg_ver.draft == hw->active_pkg_ver.draft &&
            !memcmp(hw->pkg_name, hw->active_pkg_name, sizeof(hw->pkg_name))) {
                if (already_loaded)
                        return ICE_DDP_PKG_SAME_VERSION_ALREADY_LOADED;
                else
                        return ICE_DDP_PKG_SUCCESS;
        } else if (hw->active_pkg_ver.major != ICE_PKG_SUPP_VER_MAJ ||
                   hw->active_pkg_ver.minor != ICE_PKG_SUPP_VER_MNR) {
                return ICE_DDP_PKG_ALREADY_LOADED_NOT_SUPPORTED;
        } else if (hw->active_pkg_ver.major == ICE_PKG_SUPP_VER_MAJ &&
                   hw->active_pkg_ver.minor == ICE_PKG_SUPP_VER_MNR) {
                return ICE_DDP_PKG_COMPATIBLE_ALREADY_LOADED;
        } else {
                return ICE_DDP_PKG_ERR;
        }
}

/**
 * ice_init_pkg_regs - initialize additional package registers
 * @hw: pointer to the hardware structure
 */
static void ice_init_pkg_regs(struct ice_hw *hw)
{
#define ICE_SW_BLK_INP_MASK_L 0xFFFFFFFF
#define ICE_SW_BLK_INP_MASK_H 0x0000FFFF
#define ICE_SW_BLK_IDX 0

        /* setup Switch block input mask, which is 48-bits in two parts */
        wr32(hw, GL_PREEXT_L2_PMASK0(ICE_SW_BLK_IDX), ICE_SW_BLK_INP_MASK_L);
        wr32(hw, GL_PREEXT_L2_PMASK1(ICE_SW_BLK_IDX), ICE_SW_BLK_INP_MASK_H);
}

/**
 * ice_marker_ptype_tcam_handler
 * @sect_type: section type
 * @section: pointer to section
 * @index: index of the Marker PType TCAM entry to be returned
 * @offset: pointer to receive absolute offset, always 0 for ptype TCAM sections
 *
 * This is a callback function that can be passed to ice_pkg_enum_entry.
 * Handles enumeration of individual Marker PType TCAM entries.
 */
static void *ice_marker_ptype_tcam_handler(u32 sect_type, void *section,
                                           u32 index, u32 *offset)
{
        struct ice_marker_ptype_tcam_section *marker_ptype;

        if (sect_type != ICE_SID_RXPARSER_MARKER_PTYPE)
                return NULL;

        if (index > ICE_MAX_MARKER_PTYPE_TCAMS_IN_BUF)
                return NULL;

        if (offset)
                *offset = 0;

        marker_ptype = section;
        if (index >= le16_to_cpu(marker_ptype->count))
                return NULL;

        return marker_ptype->tcam + index;
}

/**
 * ice_add_dvm_hint
 * @hw: pointer to the HW structure
 * @val: value of the boost entry
 * @enable: true if entry needs to be enabled, or false if needs to be disabled
 */
static void ice_add_dvm_hint(struct ice_hw *hw, u16 val, bool enable)
{
        if (hw->dvm_upd.count < ICE_DVM_MAX_ENTRIES) {
                hw->dvm_upd.tbl[hw->dvm_upd.count].boost_addr = val;
                hw->dvm_upd.tbl[hw->dvm_upd.count].enable = enable;
                hw->dvm_upd.count++;
        }
}

/**
 * ice_add_tunnel_hint
 * @hw: pointer to the HW structure
 * @label_name: label text
 * @val: value of the tunnel port boost entry
 */
static void ice_add_tunnel_hint(struct ice_hw *hw, char *label_name, u16 val)
{
        if (hw->tnl.count < ICE_TUNNEL_MAX_ENTRIES) {
                u16 i;

                for (i = 0; tnls[i].type != TNL_LAST; i++) {
                        size_t len = strlen(tnls[i].label_prefix);

                        /* Look for matching label start, before continuing */
                        if (strncmp(label_name, tnls[i].label_prefix, len))
                                continue;

                        /* Make sure this label matches our PF. Note that the PF
                         * character ('0' - '7') will be located where our
                         * prefix string's null terminator is located.
                         */
                        if ((label_name[len] - '0') == hw->pf_id) {
                                hw->tnl.tbl[hw->tnl.count].type = tnls[i].type;
                                hw->tnl.tbl[hw->tnl.count].valid = false;
                                hw->tnl.tbl[hw->tnl.count].boost_addr = val;
                                hw->tnl.tbl[hw->tnl.count].port = 0;
                                hw->tnl.count++;
                                break;
                        }
                }
        }
}

/**
 * ice_label_enum_handler
 * @sect_type: section type
 * @section: pointer to section
 * @index: index of the label entry to be returned
 * @offset: pointer to receive absolute offset, always zero for label sections
 *
 * This is a callback function that can be passed to ice_pkg_enum_entry.
 * Handles enumeration of individual label entries.
 */
static void *ice_label_enum_handler(u32 __always_unused sect_type,
                                    void *section, u32 index, u32 *offset)
{
        struct ice_label_section *labels;

        if (!section)
                return NULL;

        if (index > ICE_MAX_LABELS_IN_BUF)
                return NULL;

        if (offset)
                *offset = 0;

        labels = section;
        if (index >= le16_to_cpu(labels->count))
                return NULL;

        return labels->label + index;
}

/**
 * ice_enum_labels
 * @ice_seg: pointer to the ice segment (NULL on subsequent calls)
 * @type: the section type that will contain the label (0 on subsequent calls)
 * @state: ice_pkg_enum structure that will hold the state of the enumeration
 * @value: pointer to a value that will return the label's value if found
 *
 * Enumerates a list of labels in the package. The caller will call
 * ice_enum_labels(ice_seg, type, ...) to start the enumeration, then call
 * ice_enum_labels(NULL, 0, ...) to continue. When the function returns a NULL
 * the end of the list has been reached.
 */
static char *ice_enum_labels(struct ice_seg *ice_seg, u32 type,
                             struct ice_pkg_enum *state, u16 *value)
{
        struct ice_label *label;

        /* Check for valid label section on first call */
        if (type && !(type >= ICE_SID_LBL_FIRST && type <= ICE_SID_LBL_LAST))
                return NULL;

        label = ice_pkg_enum_entry(ice_seg, state, type, NULL,
                                   ice_label_enum_handler);
        if (!label)
                return NULL;

        *value = le16_to_cpu(label->value);
        return label->name;
}

/**
 * ice_boost_tcam_handler
 * @sect_type: section type
 * @section: pointer to section
 * @index: index of the boost TCAM entry to be returned
 * @offset: pointer to receive absolute offset, always 0 for boost TCAM sections
 *
 * This is a callback function that can be passed to ice_pkg_enum_entry.
 * Handles enumeration of individual boost TCAM entries.
 */
static void *ice_boost_tcam_handler(u32 sect_type, void *section, u32 index,
                                    u32 *offset)
{
        struct ice_boost_tcam_section *boost;

        if (!section)
                return NULL;

        if (sect_type != ICE_SID_RXPARSER_BOOST_TCAM)
                return NULL;

        if (index > ICE_MAX_BST_TCAMS_IN_BUF)
                return NULL;

        if (offset)
                *offset = 0;

        boost = section;
        if (index >= le16_to_cpu(boost->count))
                return NULL;

        return boost->tcam + index;
}

/**
 * ice_find_boost_entry
 * @ice_seg: pointer to the ice segment (non-NULL)
 * @addr: Boost TCAM address of entry to search for
 * @entry: returns pointer to the entry
 *
 * Finds a particular Boost TCAM entry and returns a pointer to that entry
 * if it is found. The ice_seg parameter must not be NULL since the first call
 * to ice_pkg_enum_entry requires a pointer to an actual ice_segment structure.
 */
static int ice_find_boost_entry(struct ice_seg *ice_seg, u16 addr,
                                struct ice_boost_tcam_entry **entry)
{
        struct ice_boost_tcam_entry *tcam;
        struct ice_pkg_enum state;

        memset(&state, 0, sizeof(state));

        if (!ice_seg)
                return -EINVAL;

        do {
                tcam = ice_pkg_enum_entry(ice_seg, &state,
                                          ICE_SID_RXPARSER_BOOST_TCAM, NULL,
                                          ice_boost_tcam_handler);
                if (tcam && le16_to_cpu(tcam->addr) == addr) {
                        *entry = tcam;
                        return 0;
                }

                ice_seg = NULL;
        } while (tcam);

        *entry = NULL;
        return -EIO;
}

/**
 * ice_is_init_pkg_successful - check if DDP init was successful
 * @state: state of the DDP pkg after download
 */
bool ice_is_init_pkg_successful(enum ice_ddp_state state)
{
        switch (state) {
        case ICE_DDP_PKG_SUCCESS:
        case ICE_DDP_PKG_SAME_VERSION_ALREADY_LOADED:
        case ICE_DDP_PKG_COMPATIBLE_ALREADY_LOADED:
                return true;
        default:
                return false;
        }
}

/**
 * ice_pkg_buf_alloc
 * @hw: pointer to the HW structure
 *
 * Allocates a package buffer and returns a pointer to the buffer header.
 * Note: all package contents must be in Little Endian form.
 */
struct ice_buf_build *ice_pkg_buf_alloc(struct ice_hw *hw)
{
        struct ice_buf_build *bld;
        struct ice_buf_hdr *buf;

        bld = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*bld), GFP_KERNEL);
        if (!bld)
                return NULL;

        buf = (struct ice_buf_hdr *)bld;
        buf->data_end =
                cpu_to_le16(offsetof(struct ice_buf_hdr, section_entry));
        return bld;
}

static bool ice_is_gtp_u_profile(u16 prof_idx)
{
        return (prof_idx >= ICE_PROFID_IPV6_GTPU_TEID &&
                prof_idx <= ICE_PROFID_IPV6_GTPU_IPV6_TCP_INNER) ||
               prof_idx == ICE_PROFID_IPV4_GTPU_TEID;
}

static bool ice_is_gtp_c_profile(u16 prof_idx)
{
        switch (prof_idx) {
        case ICE_PROFID_IPV4_GTPC_TEID:
        case ICE_PROFID_IPV4_GTPC_NO_TEID:
        case ICE_PROFID_IPV6_GTPC_TEID:
        case ICE_PROFID_IPV6_GTPC_NO_TEID:
                return true;
        default:
                return false;
        }
}

/**
 * ice_get_sw_prof_type - determine switch profile type
 * @hw: pointer to the HW structure
 * @fv: pointer to the switch field vector
 * @prof_idx: profile index to check
 */
static enum ice_prof_type ice_get_sw_prof_type(struct ice_hw *hw,
                                               struct ice_fv *fv, u32 prof_idx)
{
        u16 i;

        if (ice_is_gtp_c_profile(prof_idx))
                return ICE_PROF_TUN_GTPC;

        if (ice_is_gtp_u_profile(prof_idx))
                return ICE_PROF_TUN_GTPU;

        for (i = 0; i < hw->blk[ICE_BLK_SW].es.fvw; i++) {
                /* UDP tunnel will have UDP_OF protocol ID and VNI offset */
                if (fv->ew[i].prot_id == (u8)ICE_PROT_UDP_OF &&
                    fv->ew[i].off == ICE_VNI_OFFSET)
                        return ICE_PROF_TUN_UDP;

                /* GRE tunnel will have GRE protocol */
                if (fv->ew[i].prot_id == (u8)ICE_PROT_GRE_OF)
                        return ICE_PROF_TUN_GRE;
        }

        return ICE_PROF_NON_TUN;
}

/**
 * ice_get_sw_fv_bitmap - Get switch field vector bitmap based on profile type
 * @hw: pointer to hardware structure
 * @req_profs: type of profiles requested
 * @bm: pointer to memory for returning the bitmap of field vectors
 */
void ice_get_sw_fv_bitmap(struct ice_hw *hw, enum ice_prof_type req_profs,
                          unsigned long *bm)
{
        struct ice_pkg_enum state;
        struct ice_seg *ice_seg;
        struct ice_fv *fv;

        if (req_profs == ICE_PROF_ALL) {
                bitmap_set(bm, 0, ICE_MAX_NUM_PROFILES);
                return;
        }

        memset(&state, 0, sizeof(state));
        bitmap_zero(bm, ICE_MAX_NUM_PROFILES);
        ice_seg = hw->seg;
        do {
                enum ice_prof_type prof_type;
                u32 offset;

                fv = ice_pkg_enum_entry(ice_seg, &state, ICE_SID_FLD_VEC_SW,
                                        &offset, ice_sw_fv_handler);
                ice_seg = NULL;

                if (fv) {
                        /* Determine field vector type */
                        prof_type = ice_get_sw_prof_type(hw, fv, offset);

                        if (req_profs & prof_type)
                                set_bit((u16)offset, bm);
                }
        } while (fv);
}

/**
 * ice_get_sw_fv_list
 * @hw: pointer to the HW structure
 * @lkups: list of protocol types
 * @bm: bitmap of field vectors to consider
 * @fv_list: Head of a list
 *
 * Finds all the field vector entries from switch block that contain
 * a given protocol ID and offset and returns a list of structures of type
 * "ice_sw_fv_list_entry". Every structure in the list has a field vector
 * definition and profile ID information
 * NOTE: The caller of the function is responsible for freeing the memory
 * allocated for every list entry.
 */
int ice_get_sw_fv_list(struct ice_hw *hw, struct ice_prot_lkup_ext *lkups,
                       unsigned long *bm, struct list_head *fv_list)
{
        struct ice_sw_fv_list_entry *fvl;
        struct ice_sw_fv_list_entry *tmp;
        struct ice_pkg_enum state;
        struct ice_seg *ice_seg;
        struct ice_fv *fv;
        u32 offset;

        memset(&state, 0, sizeof(state));

        if (!lkups->n_val_words || !hw->seg)
                return -EINVAL;

        ice_seg = hw->seg;
        do {
                u16 i;

                fv = ice_pkg_enum_entry(ice_seg, &state, ICE_SID_FLD_VEC_SW,
                                        &offset, ice_sw_fv_handler);
                if (!fv)
                        break;
                ice_seg = NULL;

                /* If field vector is not in the bitmap list, then skip this
                 * profile.
                 */
                if (!test_bit((u16)offset, bm))
                        continue;

                for (i = 0; i < lkups->n_val_words; i++) {
                        int j;

                        for (j = 0; j < hw->blk[ICE_BLK_SW].es.fvw; j++)
                                if (fv->ew[j].prot_id ==
                                            lkups->fv_words[i].prot_id &&
                                    fv->ew[j].off == lkups->fv_words[i].off)
                                        break;
                        if (j >= hw->blk[ICE_BLK_SW].es.fvw)
                                break;
                        if (i + 1 == lkups->n_val_words) {
                                fvl = devm_kzalloc(ice_hw_to_dev(hw),
                                                   sizeof(*fvl), GFP_KERNEL);
                                if (!fvl)
                                        goto err;
                                fvl->fv_ptr = fv;
                                fvl->profile_id = offset;
                                list_add(&fvl->list_entry, fv_list);
                                break;
                        }
                }
        } while (fv);
        if (list_empty(fv_list)) {
                dev_warn(ice_hw_to_dev(hw),
                         "Required profiles not found in currently loaded DDP package");
                return -EIO;
        }

        return 0;

err:
        list_for_each_entry_safe(fvl, tmp, fv_list, list_entry) {
                list_del(&fvl->list_entry);
                devm_kfree(ice_hw_to_dev(hw), fvl);
        }

        return -ENOMEM;
}

/**
 * ice_init_prof_result_bm - Initialize the profile result index bitmap
 * @hw: pointer to hardware structure
 */
void ice_init_prof_result_bm(struct ice_hw *hw)
{
        struct ice_pkg_enum state;
        struct ice_seg *ice_seg;
        struct ice_fv *fv;

        memset(&state, 0, sizeof(state));

        if (!hw->seg)
                return;

        ice_seg = hw->seg;
        do {
                u32 off;
                u16 i;

                fv = ice_pkg_enum_entry(ice_seg, &state, ICE_SID_FLD_VEC_SW,
                                        &off, ice_sw_fv_handler);
                ice_seg = NULL;
                if (!fv)
                        break;

                bitmap_zero(hw->switch_info->prof_res_bm[off],
                            ICE_MAX_FV_WORDS);

                /* Determine empty field vector indices, these can be
                 * used for recipe results. Skip index 0, since it is
                 * always used for Switch ID.
                 */
                for (i = 1; i < ICE_MAX_FV_WORDS; i++)
                        if (fv->ew[i].prot_id == ICE_PROT_INVALID &&
                            fv->ew[i].off == ICE_FV_OFFSET_INVAL)
                                set_bit(i, hw->switch_info->prof_res_bm[off]);
        } while (fv);
}

/**
 * ice_pkg_buf_free
 * @hw: pointer to the HW structure
 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc())
 *
 * Frees a package buffer
 */
void ice_pkg_buf_free(struct ice_hw *hw, struct ice_buf_build *bld)
{
        devm_kfree(ice_hw_to_dev(hw), bld);
}

/**
 * ice_pkg_buf_reserve_section
 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc())
 * @count: the number of sections to reserve
 *
 * Reserves one or more section table entries in a package buffer. This routine
 * can be called multiple times as long as they are made before calling
 * ice_pkg_buf_alloc_section(). Once ice_pkg_buf_alloc_section()
 * is called once, the number of sections that can be allocated will not be able
 * to be increased; not using all reserved sections is fine, but this will
 * result in some wasted space in the buffer.
 * Note: all package contents must be in Little Endian form.
 */
int ice_pkg_buf_reserve_section(struct ice_buf_build *bld, u16 count)
{
        struct ice_buf_hdr *buf;
        u16 section_count;
        u16 data_end;

        if (!bld)
                return -EINVAL;

        buf = (struct ice_buf_hdr *)&bld->buf;

        /* already an active section, can't increase table size */
        section_count = le16_to_cpu(buf->section_count);
        if (section_count > 0)
                return -EIO;

        if (bld->reserved_section_table_entries + count > ICE_MAX_S_COUNT)
                return -EIO;
        bld->reserved_section_table_entries += count;

        data_end = le16_to_cpu(buf->data_end) +
                   flex_array_size(buf, section_entry, count);
        buf->data_end = cpu_to_le16(data_end);

        return 0;
}

/**
 * ice_pkg_buf_alloc_section
 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc())
 * @type: the section type value
 * @size: the size of the section to reserve (in bytes)
 *
 * Reserves memory in the buffer for a section's content and updates the
 * buffers' status accordingly. This routine returns a pointer to the first
 * byte of the section start within the buffer, which is used to fill in the
 * section contents.
 * Note: all package contents must be in Little Endian form.
 */
void *ice_pkg_buf_alloc_section(struct ice_buf_build *bld, u32 type, u16 size)
{
        struct ice_buf_hdr *buf;
        u16 sect_count;
        u16 data_end;

        if (!bld || !type || !size)
                return NULL;

        buf = (struct ice_buf_hdr *)&bld->buf;

        /* check for enough space left in buffer */
        data_end = le16_to_cpu(buf->data_end);

        /* section start must align on 4 byte boundary */
        data_end = ALIGN(data_end, 4);

        if ((data_end + size) > ICE_MAX_S_DATA_END)
                return NULL;

        /* check for more available section table entries */
        sect_count = le16_to_cpu(buf->section_count);
        if (sect_count < bld->reserved_section_table_entries) {
                void *section_ptr = ((u8 *)buf) + data_end;

                buf->section_entry[sect_count].offset = cpu_to_le16(data_end);
                buf->section_entry[sect_count].size = cpu_to_le16(size);
                buf->section_entry[sect_count].type = cpu_to_le32(type);

                data_end += size;
                buf->data_end = cpu_to_le16(data_end);

                buf->section_count = cpu_to_le16(sect_count + 1);
                return section_ptr;
        }

        /* no free section table entries */
        return NULL;
}

/**
 * ice_pkg_buf_alloc_single_section
 * @hw: pointer to the HW structure
 * @type: the section type value
 * @size: the size of the section to reserve (in bytes)
 * @section: returns pointer to the section
 *
 * Allocates a package buffer with a single section.
 * Note: all package contents must be in Little Endian form.
 */
struct ice_buf_build *ice_pkg_buf_alloc_single_section(struct ice_hw *hw,
                                                       u32 type, u16 size,
                                                       void **section)
{
        struct ice_buf_build *buf;

        if (!section)
                return NULL;

        buf = ice_pkg_buf_alloc(hw);
        if (!buf)
                return NULL;

        if (ice_pkg_buf_reserve_section(buf, 1))
                goto ice_pkg_buf_alloc_single_section_err;

        *section = ice_pkg_buf_alloc_section(buf, type, size);
        if (!*section)
                goto ice_pkg_buf_alloc_single_section_err;

        return buf;

ice_pkg_buf_alloc_single_section_err:
        ice_pkg_buf_free(hw, buf);
        return NULL;
}

/**
 * ice_pkg_buf_get_active_sections
 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc())
 *
 * Returns the number of active sections. Before using the package buffer
 * in an update package command, the caller should make sure that there is at
 * least one active section - otherwise, the buffer is not legal and should
 * not be used.
 * Note: all package contents must be in Little Endian form.
 */
u16 ice_pkg_buf_get_active_sections(struct ice_buf_build *bld)
{
        struct ice_buf_hdr *buf;

        if (!bld)
                return 0;

        buf = (struct ice_buf_hdr *)&bld->buf;
        return le16_to_cpu(buf->section_count);
}

/**
 * ice_pkg_buf
 * @bld: pointer to pkg build (allocated by ice_pkg_buf_alloc())
 *
 * Return a pointer to the buffer's header
 */
struct ice_buf *ice_pkg_buf(struct ice_buf_build *bld)
{
        if (!bld)
                return NULL;

        return &bld->buf;
}

static enum ice_ddp_state ice_map_aq_err_to_ddp_state(enum ice_aq_err aq_err)
{
        switch (aq_err) {
        case ICE_AQ_RC_ENOSEC:
        case ICE_AQ_RC_EBADSIG:
                return ICE_DDP_PKG_FILE_SIGNATURE_INVALID;
        case ICE_AQ_RC_ESVN:
                return ICE_DDP_PKG_FILE_REVISION_TOO_LOW;
        case ICE_AQ_RC_EBADMAN:
        case ICE_AQ_RC_EBADBUF:
                return ICE_DDP_PKG_LOAD_ERROR;
        default:
                return ICE_DDP_PKG_ERR;
        }
}

/**
 * ice_acquire_global_cfg_lock
 * @hw: pointer to the HW structure
 * @access: access type (read or write)
 *
 * This function will request ownership of the global config lock for reading
 * or writing of the package. When attempting to obtain write access, the
 * caller must check for the following two return values:
 *
 * 0         -  Means the caller has acquired the global config lock
 *              and can perform writing of the package.
 * -EALREADY - Indicates another driver has already written the
 *             package or has found that no update was necessary; in
 *             this case, the caller can just skip performing any
 *             update of the package.
 */
static int ice_acquire_global_cfg_lock(struct ice_hw *hw,
                                       enum ice_aq_res_access_type access)
{
        int status;

        status = ice_acquire_res(hw, ICE_GLOBAL_CFG_LOCK_RES_ID, access,
                                 ICE_GLOBAL_CFG_LOCK_TIMEOUT);

        if (!status)
                mutex_lock(&ice_global_cfg_lock_sw);
        else if (status == -EALREADY)
                ice_debug(hw, ICE_DBG_PKG,
                          "Global config lock: No work to do\n");

        return status;
}

/**
 * ice_release_global_cfg_lock
 * @hw: pointer to the HW structure
 *
 * This function will release the global config lock.
 */
static void ice_release_global_cfg_lock(struct ice_hw *hw)
{
        mutex_unlock(&ice_global_cfg_lock_sw);
        ice_release_res(hw, ICE_GLOBAL_CFG_LOCK_RES_ID);
}

/**
 * ice_aq_download_pkg
 * @hw: pointer to the hardware structure
 * @pkg_buf: the package buffer to transfer
 * @buf_size: the size of the package buffer
 * @last_buf: last buffer indicator
 * @error_offset: returns error offset
 * @error_info: returns error information
 * @cd: pointer to command details structure or NULL
 *
 * Download Package (0x0C40)
 */
static int
ice_aq_download_pkg(struct ice_hw *hw, struct ice_buf_hdr *pkg_buf,
                    u16 buf_size, bool last_buf, u32 *error_offset,
                    u32 *error_info, struct ice_sq_cd *cd)
{
        struct ice_aqc_download_pkg *cmd;
        struct ice_aq_desc desc;
        int status;

        if (error_offset)
                *error_offset = 0;
        if (error_info)
                *error_info = 0;

        cmd = &desc.params.download_pkg;
        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_download_pkg);
        desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);

        if (last_buf)
                cmd->flags |= ICE_AQC_DOWNLOAD_PKG_LAST_BUF;

        status = ice_aq_send_cmd(hw, &desc, pkg_buf, buf_size, cd);
        if (status == -EIO) {
                /* Read error from buffer only when the FW returned an error */
                struct ice_aqc_download_pkg_resp *resp;

                resp = (struct ice_aqc_download_pkg_resp *)pkg_buf;
                if (error_offset)
                        *error_offset = le32_to_cpu(resp->error_offset);
                if (error_info)
                        *error_info = le32_to_cpu(resp->error_info);
        }

        return status;
}

/**
 * ice_dwnld_cfg_bufs
 * @hw: pointer to the hardware structure
 * @bufs: pointer to an array of buffers
 * @count: the number of buffers in the array
 *
 * Obtains global config lock and downloads the package configuration buffers
 * to the firmware. Metadata buffers are skipped, and the first metadata buffer
 * found indicates that the rest of the buffers are all metadata buffers.
 */
static enum ice_ddp_state ice_dwnld_cfg_bufs(struct ice_hw *hw,
                                             struct ice_buf *bufs, u32 count)
{
        enum ice_ddp_state state = ICE_DDP_PKG_SUCCESS;
        struct ice_buf_hdr *bh;
        enum ice_aq_err err;
        u32 offset, info, i;
        int status;

        if (!bufs || !count)
                return ICE_DDP_PKG_ERR;

        /* If the first buffer's first section has its metadata bit set
         * then there are no buffers to be downloaded, and the operation is
         * considered a success.
         */
        bh = (struct ice_buf_hdr *)bufs;
        if (le32_to_cpu(bh->section_entry[0].type) & ICE_METADATA_BUF)
                return ICE_DDP_PKG_SUCCESS;

        status = ice_acquire_global_cfg_lock(hw, ICE_RES_WRITE);
        if (status) {
                if (status == -EALREADY)
                        return ICE_DDP_PKG_ALREADY_LOADED;
                return ice_map_aq_err_to_ddp_state(hw->adminq.sq_last_status);
        }

        for (i = 0; i < count; i++) {
                bool last = ((i + 1) == count);

                if (!last) {
                        /* check next buffer for metadata flag */
                        bh = (struct ice_buf_hdr *)(bufs + i + 1);

                        /* A set metadata flag in the next buffer will signal
                         * that the current buffer will be the last buffer
                         * downloaded
                         */
                        if (le16_to_cpu(bh->section_count))
                                if (le32_to_cpu(bh->section_entry[0].type) &
                                    ICE_METADATA_BUF)
                                        last = true;
                }

                bh = (struct ice_buf_hdr *)(bufs + i);

                status = ice_aq_download_pkg(hw, bh, ICE_PKG_BUF_SIZE, last,
                                             &offset, &info, NULL);

                /* Save AQ status from download package */
                if (status) {
                        ice_debug(hw, ICE_DBG_PKG,
                                  "Pkg download failed: err %d off %d inf %d\n",
                                  status, offset, info);
                        err = hw->adminq.sq_last_status;
                        state = ice_map_aq_err_to_ddp_state(err);
                        break;
                }

                if (last)
                        break;
        }

        if (!status) {
                status = ice_set_vlan_mode(hw);
                if (status)
                        ice_debug(hw, ICE_DBG_PKG,
                                  "Failed to set VLAN mode: err %d\n", status);
        }

        ice_release_global_cfg_lock(hw);

        return state;
}

/**
 * ice_aq_get_pkg_info_list
 * @hw: pointer to the hardware structure
 * @pkg_info: the buffer which will receive the information list
 * @buf_size: the size of the pkg_info information buffer
 * @cd: pointer to command details structure or NULL
 *
 * Get Package Info List (0x0C43)
 */
static int ice_aq_get_pkg_info_list(struct ice_hw *hw,
                                    struct ice_aqc_get_pkg_info_resp *pkg_info,
                                    u16 buf_size, struct ice_sq_cd *cd)
{
        struct ice_aq_desc desc;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_pkg_info_list);

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

/**
 * ice_download_pkg
 * @hw: pointer to the hardware structure
 * @ice_seg: pointer to the segment of the package to be downloaded
 *
 * Handles the download of a complete package.
 */
static enum ice_ddp_state ice_download_pkg(struct ice_hw *hw,
                                           struct ice_seg *ice_seg)
{
        struct ice_buf_table *ice_buf_tbl;
        int status;

        ice_debug(hw, ICE_DBG_PKG, "Segment format version: %d.%d.%d.%d\n",
                  ice_seg->hdr.seg_format_ver.major,
                  ice_seg->hdr.seg_format_ver.minor,
                  ice_seg->hdr.seg_format_ver.update,
                  ice_seg->hdr.seg_format_ver.draft);

        ice_debug(hw, ICE_DBG_PKG, "Seg: type 0x%X, size %d, name %s\n",
                  le32_to_cpu(ice_seg->hdr.seg_type),
                  le32_to_cpu(ice_seg->hdr.seg_size), ice_seg->hdr.seg_id);

        ice_buf_tbl = ice_find_buf_table(ice_seg);

        ice_debug(hw, ICE_DBG_PKG, "Seg buf count: %d\n",
                  le32_to_cpu(ice_buf_tbl->buf_count));

        status = ice_dwnld_cfg_bufs(hw, ice_buf_tbl->buf_array,
                                    le32_to_cpu(ice_buf_tbl->buf_count));

        ice_post_pkg_dwnld_vlan_mode_cfg(hw);

        return status;
}

/**
 * ice_aq_update_pkg
 * @hw: pointer to the hardware structure
 * @pkg_buf: the package cmd buffer
 * @buf_size: the size of the package cmd buffer
 * @last_buf: last buffer indicator
 * @error_offset: returns error offset
 * @error_info: returns error information
 * @cd: pointer to command details structure or NULL
 *
 * Update Package (0x0C42)
 */
static int ice_aq_update_pkg(struct ice_hw *hw, struct ice_buf_hdr *pkg_buf,
                             u16 buf_size, bool last_buf, u32 *error_offset,
                             u32 *error_info, struct ice_sq_cd *cd)
{
        struct ice_aqc_download_pkg *cmd;
        struct ice_aq_desc desc;
        int status;

        if (error_offset)
                *error_offset = 0;
        if (error_info)
                *error_info = 0;

        cmd = &desc.params.download_pkg;
        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_update_pkg);
        desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);

        if (last_buf)
                cmd->flags |= ICE_AQC_DOWNLOAD_PKG_LAST_BUF;

        status = ice_aq_send_cmd(hw, &desc, pkg_buf, buf_size, cd);
        if (status == -EIO) {
                /* Read error from buffer only when the FW returned an error */
                struct ice_aqc_download_pkg_resp *resp;

                resp = (struct ice_aqc_download_pkg_resp *)pkg_buf;
                if (error_offset)
                        *error_offset = le32_to_cpu(resp->error_offset);
                if (error_info)
                        *error_info = le32_to_cpu(resp->error_info);
        }

        return status;
}

/**
 * ice_aq_upload_section
 * @hw: pointer to the hardware structure
 * @pkg_buf: the package buffer which will receive the section
 * @buf_size: the size of the package buffer
 * @cd: pointer to command details structure or NULL
 *
 * Upload Section (0x0C41)
 */
int ice_aq_upload_section(struct ice_hw *hw, struct ice_buf_hdr *pkg_buf,
                          u16 buf_size, struct ice_sq_cd *cd)
{
        struct ice_aq_desc desc;

        ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_upload_section);
        desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);

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

/**
 * ice_update_pkg_no_lock
 * @hw: pointer to the hardware structure
 * @bufs: pointer to an array of buffers
 * @count: the number of buffers in the array
 */
int ice_update_pkg_no_lock(struct ice_hw *hw, struct ice_buf *bufs, u32 count)
{
        int status = 0;
        u32 i;

        for (i = 0; i < count; i++) {
                struct ice_buf_hdr *bh = (struct ice_buf_hdr *)(bufs + i);
                bool last = ((i + 1) == count);
                u32 offset, info;

                status = ice_aq_update_pkg(hw, bh, le16_to_cpu(bh->data_end),
                                           last, &offset, &info, NULL);

                if (status) {
                        ice_debug(hw, ICE_DBG_PKG,
                                  "Update pkg failed: err %d off %d inf %d\n",
                                  status, offset, info);
                        break;
                }
        }

        return status;
}

/**
 * ice_update_pkg
 * @hw: pointer to the hardware structure
 * @bufs: pointer to an array of buffers
 * @count: the number of buffers in the array
 *
 * Obtains change lock and updates package.
 */
int ice_update_pkg(struct ice_hw *hw, struct ice_buf *bufs, u32 count)
{
        int status;

        status = ice_acquire_change_lock(hw, ICE_RES_WRITE);
        if (status)
                return status;

        status = ice_update_pkg_no_lock(hw, bufs, count);

        ice_release_change_lock(hw);

        return status;
}

/**
 * ice_find_seg_in_pkg
 * @hw: pointer to the hardware structure
 * @seg_type: the segment type to search for (i.e., SEGMENT_TYPE_CPK)
 * @pkg_hdr: pointer to the package header to be searched
 *
 * This function searches a package file for a particular segment type. On
 * success it returns a pointer to the segment header, otherwise it will
 * return NULL.
 */
static struct ice_generic_seg_hdr *
ice_find_seg_in_pkg(struct ice_hw *hw, u32 seg_type,
                    struct ice_pkg_hdr *pkg_hdr)
{
        u32 i;

        ice_debug(hw, ICE_DBG_PKG, "Package format version: %d.%d.%d.%d\n",
                  pkg_hdr->pkg_format_ver.major, pkg_hdr->pkg_format_ver.minor,
                  pkg_hdr->pkg_format_ver.update,
                  pkg_hdr->pkg_format_ver.draft);

        /* Search all package segments for the requested segment type */
        for (i = 0; i < le32_to_cpu(pkg_hdr->seg_count); i++) {
                struct ice_generic_seg_hdr *seg;

                seg = (struct ice_generic_seg_hdr
                               *)((u8 *)pkg_hdr +
                                  le32_to_cpu(pkg_hdr->seg_offset[i]));

                if (le32_to_cpu(seg->seg_type) == seg_type)
                        return seg;
        }

        return NULL;
}

/**
 * ice_init_pkg_info
 * @hw: pointer to the hardware structure
 * @pkg_hdr: pointer to the driver's package hdr
 *
 * Saves off the package details into the HW structure.
 */
static enum ice_ddp_state ice_init_pkg_info(struct ice_hw *hw,
                                            struct ice_pkg_hdr *pkg_hdr)
{
        struct ice_generic_seg_hdr *seg_hdr;

        if (!pkg_hdr)
                return ICE_DDP_PKG_ERR;

        seg_hdr = ice_find_seg_in_pkg(hw, SEGMENT_TYPE_ICE, pkg_hdr);
        if (seg_hdr) {
                struct ice_meta_sect *meta;
                struct ice_pkg_enum state;

                memset(&state, 0, sizeof(state));

                /* Get package information from the Metadata Section */
                meta = ice_pkg_enum_section((struct ice_seg *)seg_hdr, &state,
                                            ICE_SID_METADATA);
                if (!meta) {
                        ice_debug(hw, ICE_DBG_INIT,
                                  "Did not find ice metadata section in package\n");
                        return ICE_DDP_PKG_INVALID_FILE;
                }

                hw->pkg_ver = meta->ver;
                memcpy(hw->pkg_name, meta->name, sizeof(meta->name));

                ice_debug(hw, ICE_DBG_PKG, "Pkg: %d.%d.%d.%d, %s\n",
                          meta->ver.major, meta->ver.minor, meta->ver.update,
                          meta->ver.draft, meta->name);

                hw->ice_seg_fmt_ver = seg_hdr->seg_format_ver;
                memcpy(hw->ice_seg_id, seg_hdr->seg_id, sizeof(hw->ice_seg_id));

                ice_debug(hw, ICE_DBG_PKG, "Ice Seg: %d.%d.%d.%d, %s\n",
                          seg_hdr->seg_format_ver.major,
                          seg_hdr->seg_format_ver.minor,
                          seg_hdr->seg_format_ver.update,
                          seg_hdr->seg_format_ver.draft, seg_hdr->seg_id);
        } else {
                ice_debug(hw, ICE_DBG_INIT,
                          "Did not find ice segment in driver package\n");
                return ICE_DDP_PKG_INVALID_FILE;
        }

        return ICE_DDP_PKG_SUCCESS;
}

/**
 * ice_get_pkg_info
 * @hw: pointer to the hardware structure
 *
 * Store details of the package currently loaded in HW into the HW structure.
 */
static enum ice_ddp_state ice_get_pkg_info(struct ice_hw *hw)
{
        DEFINE_FLEX(struct ice_aqc_get_pkg_info_resp, pkg_info, pkg_info,
                    ICE_PKG_CNT);
        u16 size = __struct_size(pkg_info);
        u32 i;

        if (ice_aq_get_pkg_info_list(hw, pkg_info, size, NULL))
                return ICE_DDP_PKG_ERR;

        for (i = 0; i < le32_to_cpu(pkg_info->count); i++) {
#define ICE_PKG_FLAG_COUNT 4
                char flags[ICE_PKG_FLAG_COUNT + 1] = { 0 };
                u8 place = 0;

                if (pkg_info->pkg_info[i].is_active) {
                        flags[place++] = 'A';
                        hw->active_pkg_ver = pkg_info->pkg_info[i].ver;
                        hw->active_track_id =
                                le32_to_cpu(pkg_info->pkg_info[i].track_id);
                        memcpy(hw->active_pkg_name, pkg_info->pkg_info[i].name,
                               sizeof(pkg_info->pkg_info[i].name));
                        hw->active_pkg_in_nvm = pkg_info->pkg_info[i].is_in_nvm;
                }
                if (pkg_info->pkg_info[i].is_active_at_boot)
                        flags[place++] = 'B';
                if (pkg_info->pkg_info[i].is_modified)
                        flags[place++] = 'M';
                if (pkg_info->pkg_info[i].is_in_nvm)
                        flags[place++] = 'N';

                ice_debug(hw, ICE_DBG_PKG, "Pkg[%d]: %d.%d.%d.%d,%s,%s\n", i,
                          pkg_info->pkg_info[i].ver.major,
                          pkg_info->pkg_info[i].ver.minor,
                          pkg_info->pkg_info[i].ver.update,
                          pkg_info->pkg_info[i].ver.draft,
                          pkg_info->pkg_info[i].name, flags);
        }

        return ICE_DDP_PKG_SUCCESS;
}

/**
 * ice_chk_pkg_compat
 * @hw: pointer to the hardware structure
 * @ospkg: pointer to the package hdr
 * @seg: pointer to the package segment hdr
 *
 * This function checks the package version compatibility with driver and NVM
 */
static enum ice_ddp_state ice_chk_pkg_compat(struct ice_hw *hw,
                                             struct ice_pkg_hdr *ospkg,
                                             struct ice_seg **seg)
{
        DEFINE_FLEX(struct ice_aqc_get_pkg_info_resp, pkg, pkg_info,
                    ICE_PKG_CNT);
        u16 size = __struct_size(pkg);
        enum ice_ddp_state state;
        u32 i;

        /* Check package version compatibility */
        state = ice_chk_pkg_version(&hw->pkg_ver);
        if (state) {
                ice_debug(hw, ICE_DBG_INIT, "Package version check failed.\n");
                return state;
        }

        /* find ICE segment in given package */
        *seg = (struct ice_seg *)ice_find_seg_in_pkg(hw, SEGMENT_TYPE_ICE,
                                                     ospkg);
        if (!*seg) {
                ice_debug(hw, ICE_DBG_INIT, "no ice segment in package.\n");
                return ICE_DDP_PKG_INVALID_FILE;
        }

        /* Check if FW is compatible with the OS package */
        if (ice_aq_get_pkg_info_list(hw, pkg, size, NULL))
                return ICE_DDP_PKG_LOAD_ERROR;

        for (i = 0; i < le32_to_cpu(pkg->count); i++) {
                /* loop till we find the NVM package */
                if (!pkg->pkg_info[i].is_in_nvm)
                        continue;
                if ((*seg)->hdr.seg_format_ver.major !=
                            pkg->pkg_info[i].ver.major ||
                    (*seg)->hdr.seg_format_ver.minor >
                            pkg->pkg_info[i].ver.minor) {
                        state = ICE_DDP_PKG_FW_MISMATCH;
                        ice_debug(hw, ICE_DBG_INIT,
                                  "OS package is not compatible with NVM.\n");
                }
                /* done processing NVM package so break */
                break;
        }

        return state;
}

/**
 * ice_init_pkg_hints
 * @hw: pointer to the HW structure
 * @ice_seg: pointer to the segment of the package scan (non-NULL)
 *
 * This function will scan the package and save off relevant information
 * (hints or metadata) for driver use. The ice_seg parameter must not be NULL
 * since the first call to ice_enum_labels requires a pointer to an actual
 * ice_seg structure.
 */
static void ice_init_pkg_hints(struct ice_hw *hw, struct ice_seg *ice_seg)
{
        struct ice_pkg_enum state;
        char *label_name;
        u16 val;
        int i;

        memset(&hw->tnl, 0, sizeof(hw->tnl));
        memset(&state, 0, sizeof(state));

        if (!ice_seg)
                return;

        label_name = ice_enum_labels(ice_seg, ICE_SID_LBL_RXPARSER_TMEM, &state,
                                     &val);

        while (label_name) {
                if (!strncmp(label_name, ICE_TNL_PRE, strlen(ICE_TNL_PRE)))
                        /* check for a tunnel entry */
                        ice_add_tunnel_hint(hw, label_name, val);

                /* check for a dvm mode entry */
                else if (!strncmp(label_name, ICE_DVM_PRE, strlen(ICE_DVM_PRE)))
                        ice_add_dvm_hint(hw, val, true);

                /* check for a svm mode entry */
                else if (!strncmp(label_name, ICE_SVM_PRE, strlen(ICE_SVM_PRE)))
                        ice_add_dvm_hint(hw, val, false);

                label_name = ice_enum_labels(NULL, 0, &state, &val);
        }

        /* Cache the appropriate boost TCAM entry pointers for tunnels */
        for (i = 0; i < hw->tnl.count; i++) {
                ice_find_boost_entry(ice_seg, hw->tnl.tbl[i].boost_addr,
                                     &hw->tnl.tbl[i].boost_entry);
                if (hw->tnl.tbl[i].boost_entry) {
                        hw->tnl.tbl[i].valid = true;
                        if (hw->tnl.tbl[i].type < __TNL_TYPE_CNT)
                                hw->tnl.valid_count[hw->tnl.tbl[i].type]++;
                }
        }

        /* Cache the appropriate boost TCAM entry pointers for DVM and SVM */
        for (i = 0; i < hw->dvm_upd.count; i++)
                ice_find_boost_entry(ice_seg, hw->dvm_upd.tbl[i].boost_addr,
                                     &hw->dvm_upd.tbl[i].boost_entry);
}

/**
 * ice_fill_hw_ptype - fill the enabled PTYPE bit information
 * @hw: pointer to the HW structure
 */
static void ice_fill_hw_ptype(struct ice_hw *hw)
{
        struct ice_marker_ptype_tcam_entry *tcam;
        struct ice_seg *seg = hw->seg;
        struct ice_pkg_enum state;

        bitmap_zero(hw->hw_ptype, ICE_FLOW_PTYPE_MAX);
        if (!seg)
                return;

        memset(&state, 0, sizeof(state));

        do {
                tcam = ice_pkg_enum_entry(seg, &state,
                                          ICE_SID_RXPARSER_MARKER_PTYPE, NULL,
                                          ice_marker_ptype_tcam_handler);
                if (tcam &&
                    le16_to_cpu(tcam->addr) < ICE_MARKER_PTYPE_TCAM_ADDR_MAX &&
                    le16_to_cpu(tcam->ptype) < ICE_FLOW_PTYPE_MAX)
                        set_bit(le16_to_cpu(tcam->ptype), hw->hw_ptype);

                seg = NULL;
        } while (tcam);
}

/**
 * ice_init_pkg - initialize/download package
 * @hw: pointer to the hardware structure
 * @buf: pointer to the package buffer
 * @len: size of the package buffer
 *
 * This function initializes a package. The package contains HW tables
 * required to do packet processing. First, the function extracts package
 * information such as version. Then it finds the ice configuration segment
 * within the package; this function then saves a copy of the segment pointer
 * within the supplied package buffer. Next, the function will cache any hints
 * from the package, followed by downloading the package itself. Note, that if
 * a previous PF driver has already downloaded the package successfully, then
 * the current driver will not have to download the package again.
 *
 * The local package contents will be used to query default behavior and to
 * update specific sections of the HW's version of the package (e.g. to update
 * the parse graph to understand new protocols).
 *
 * This function stores a pointer to the package buffer memory, and it is
 * expected that the supplied buffer will not be freed immediately. If the
 * package buffer needs to be freed, such as when read from a file, use
 * ice_copy_and_init_pkg() instead of directly calling ice_init_pkg() in this
 * case.
 */
enum ice_ddp_state ice_init_pkg(struct ice_hw *hw, u8 *buf, u32 len)
{
        bool already_loaded = false;
        enum ice_ddp_state state;
        struct ice_pkg_hdr *pkg;
        struct ice_seg *seg;

        if (!buf || !len)
                return ICE_DDP_PKG_ERR;

        pkg = (struct ice_pkg_hdr *)buf;
        state = ice_verify_pkg(pkg, len);
        if (state) {
                ice_debug(hw, ICE_DBG_INIT, "failed to verify pkg (err: %d)\n",
                          state);
                return state;
        }

        /* initialize package info */
        state = ice_init_pkg_info(hw, pkg);
        if (state)
                return state;

        /* before downloading the package, check package version for
         * compatibility with driver
         */
        state = ice_chk_pkg_compat(hw, pkg, &seg);
        if (state)
                return state;

        /* initialize package hints and then download package */
        ice_init_pkg_hints(hw, seg);
        state = ice_download_pkg(hw, seg);
        if (state == ICE_DDP_PKG_ALREADY_LOADED) {
                ice_debug(hw, ICE_DBG_INIT,
                          "package previously loaded - no work.\n");
                already_loaded = true;
        }

        /* Get information on the package currently loaded in HW, then make sure
         * the driver is compatible with this version.
         */
        if (!state || state == ICE_DDP_PKG_ALREADY_LOADED) {
                state = ice_get_pkg_info(hw);
                if (!state)
                        state = ice_get_ddp_pkg_state(hw, already_loaded);
        }

        if (ice_is_init_pkg_successful(state)) {
                hw->seg = seg;
                /* on successful package download update other required
                 * registers to support the package and fill HW tables
                 * with package content.
                 */
                ice_init_pkg_regs(hw);
                ice_fill_blk_tbls(hw);
                ice_fill_hw_ptype(hw);
                ice_get_prof_index_max(hw);
        } else {
                ice_debug(hw, ICE_DBG_INIT, "package load failed, %d\n", state);
        }

        return state;
}

/**
 * ice_copy_and_init_pkg - initialize/download a copy of the package
 * @hw: pointer to the hardware structure
 * @buf: pointer to the package buffer
 * @len: size of the package buffer
 *
 * This function copies the package buffer, and then calls ice_init_pkg() to
 * initialize the copied package contents.
 *
 * The copying is necessary if the package buffer supplied is constant, or if
 * the memory may disappear shortly after calling this function.
 *
 * If the package buffer resides in the data segment and can be modified, the
 * caller is free to use ice_init_pkg() instead of ice_copy_and_init_pkg().
 *
 * However, if the package buffer needs to be copied first, such as when being
 * read from a file, the caller should use ice_copy_and_init_pkg().
 *
 * This function will first copy the package buffer, before calling
 * ice_init_pkg(). The caller is free to immediately destroy the original
 * package buffer, as the new copy will be managed by this function and
 * related routines.
 */
enum ice_ddp_state ice_copy_and_init_pkg(struct ice_hw *hw, const u8 *buf,
                                         u32 len)
{
        enum ice_ddp_state state;
        u8 *buf_copy;

        if (!buf || !len)
                return ICE_DDP_PKG_ERR;

        buf_copy = devm_kmemdup(ice_hw_to_dev(hw), buf, len, GFP_KERNEL);

        state = ice_init_pkg(hw, buf_copy, len);
        if (!ice_is_init_pkg_successful(state)) {
                /* Free the copy, since we failed to initialize the package */
                devm_kfree(ice_hw_to_dev(hw), buf_copy);
        } else {
                /* Track the copied pkg so we can free it later */
                hw->pkg_copy = buf_copy;
                hw->pkg_size = len;
        }

        return state;
}