blob: 1279c1ffe31c3976065178b69da74614b914b2b3 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2019-2021, Intel Corporation. */
#include "ice_common.h"
/**
* ice_pkg_get_supported_vlan_mode - determine if DDP supports Double VLAN mode
* @hw: pointer to the HW struct
* @dvm: output variable to determine if DDP supports DVM(true) or SVM(false)
*/
static int
ice_pkg_get_supported_vlan_mode(struct ice_hw *hw, bool *dvm)
{
u16 meta_init_size = sizeof(struct ice_meta_init_section);
struct ice_meta_init_section *sect;
struct ice_buf_build *bld;
int status;
/* if anything fails, we assume there is no DVM support */
*dvm = false;
bld = ice_pkg_buf_alloc_single_section(hw,
ICE_SID_RXPARSER_METADATA_INIT,
meta_init_size, (void **)&sect);
if (!bld)
return -ENOMEM;
/* only need to read a single section */
sect->count = cpu_to_le16(1);
sect->offset = cpu_to_le16(ICE_META_VLAN_MODE_ENTRY);
status = ice_aq_upload_section(hw,
(struct ice_buf_hdr *)ice_pkg_buf(bld),
ICE_PKG_BUF_SIZE, NULL);
if (!status) {
DECLARE_BITMAP(entry, ICE_META_INIT_BITS);
u32 arr[ICE_META_INIT_DW_CNT];
u16 i;
/* convert to host bitmap format */
for (i = 0; i < ICE_META_INIT_DW_CNT; i++)
arr[i] = le32_to_cpu(sect->entry.bm[i]);
bitmap_from_arr32(entry, arr, (u16)ICE_META_INIT_BITS);
/* check if DVM is supported */
*dvm = test_bit(ICE_META_VLAN_MODE_BIT, entry);
}
ice_pkg_buf_free(hw, bld);
return status;
}
/**
* ice_aq_get_vlan_mode - get the VLAN mode of the device
* @hw: pointer to the HW structure
* @get_params: structure FW fills in based on the current VLAN mode config
*
* Get VLAN Mode Parameters (0x020D)
*/
static int
ice_aq_get_vlan_mode(struct ice_hw *hw,
struct ice_aqc_get_vlan_mode *get_params)
{
struct ice_aq_desc desc;
if (!get_params)
return -EINVAL;
ice_fill_dflt_direct_cmd_desc(&desc,
ice_aqc_opc_get_vlan_mode_parameters);
return ice_aq_send_cmd(hw, &desc, get_params, sizeof(*get_params),
NULL);
}
/**
* ice_aq_is_dvm_ena - query FW to check if double VLAN mode is enabled
* @hw: pointer to the HW structure
*
* Returns true if the hardware/firmware is configured in double VLAN mode,
* else return false signaling that the hardware/firmware is configured in
* single VLAN mode.
*
* Also, return false if this call fails for any reason (i.e. firmware doesn't
* support this AQ call).
*/
static bool ice_aq_is_dvm_ena(struct ice_hw *hw)
{
struct ice_aqc_get_vlan_mode get_params = { 0 };
int status;
status = ice_aq_get_vlan_mode(hw, &get_params);
if (status) {
ice_debug(hw, ICE_DBG_AQ, "Failed to get VLAN mode, status %d\n",
status);
return false;
}
return (get_params.vlan_mode & ICE_AQ_VLAN_MODE_DVM_ENA);
}
/**
* ice_is_dvm_ena - check if double VLAN mode is enabled
* @hw: pointer to the HW structure
*
* The device is configured in single or double VLAN mode on initialization and
* this cannot be dynamically changed during runtime. Based on this there is no
* need to make an AQ call every time the driver needs to know the VLAN mode.
* Instead, use the cached VLAN mode.
*/
bool ice_is_dvm_ena(struct ice_hw *hw)
{
return hw->dvm_ena;
}
/**
* ice_cache_vlan_mode - cache VLAN mode after DDP is downloaded
* @hw: pointer to the HW structure
*
* This is only called after downloading the DDP and after the global
* configuration lock has been released because all ports on a device need to
* cache the VLAN mode.
*/
static void ice_cache_vlan_mode(struct ice_hw *hw)
{
hw->dvm_ena = ice_aq_is_dvm_ena(hw) ? true : false;
}
/**
* ice_pkg_supports_dvm - find out if DDP supports DVM
* @hw: pointer to the HW structure
*/
static bool ice_pkg_supports_dvm(struct ice_hw *hw)
{
bool pkg_supports_dvm;
int status;
status = ice_pkg_get_supported_vlan_mode(hw, &pkg_supports_dvm);
if (status) {
ice_debug(hw, ICE_DBG_PKG, "Failed to get supported VLAN mode, status %d\n",
status);
return false;
}
return pkg_supports_dvm;
}
/**
* ice_fw_supports_dvm - find out if FW supports DVM
* @hw: pointer to the HW structure
*/
static bool ice_fw_supports_dvm(struct ice_hw *hw)
{
struct ice_aqc_get_vlan_mode get_vlan_mode = { 0 };
int status;
/* If firmware returns success, then it supports DVM, else it only
* supports SVM
*/
status = ice_aq_get_vlan_mode(hw, &get_vlan_mode);
if (status) {
ice_debug(hw, ICE_DBG_NVM, "Failed to get VLAN mode, status %d\n",
status);
return false;
}
return true;
}
/**
* ice_is_dvm_supported - check if Double VLAN Mode is supported
* @hw: pointer to the hardware structure
*
* Returns true if Double VLAN Mode (DVM) is supported and false if only Single
* VLAN Mode (SVM) is supported. In order for DVM to be supported the DDP and
* firmware must support it, otherwise only SVM is supported. This function
* should only be called while the global config lock is held and after the
* package has been successfully downloaded.
*/
static bool ice_is_dvm_supported(struct ice_hw *hw)
{
if (!ice_pkg_supports_dvm(hw)) {
ice_debug(hw, ICE_DBG_PKG, "DDP doesn't support DVM\n");
return false;
}
if (!ice_fw_supports_dvm(hw)) {
ice_debug(hw, ICE_DBG_PKG, "FW doesn't support DVM\n");
return false;
}
return true;
}
#define ICE_EXTERNAL_VLAN_ID_FV_IDX 11
#define ICE_SW_LKUP_VLAN_LOC_LKUP_IDX 1
#define ICE_SW_LKUP_VLAN_PKT_FLAGS_LKUP_IDX 2
#define ICE_SW_LKUP_PROMISC_VLAN_LOC_LKUP_IDX 2
#define ICE_PKT_FLAGS_0_TO_15_FV_IDX 1
static struct ice_update_recipe_lkup_idx_params ice_dvm_dflt_recipes[] = {
{
/* Update recipe ICE_SW_LKUP_VLAN to filter based on the
* outer/single VLAN in DVM
*/
.rid = ICE_SW_LKUP_VLAN,
.fv_idx = ICE_EXTERNAL_VLAN_ID_FV_IDX,
.ignore_valid = true,
.mask = 0,
.mask_valid = false, /* use pre-existing mask */
.lkup_idx = ICE_SW_LKUP_VLAN_LOC_LKUP_IDX,
},
{
/* Update recipe ICE_SW_LKUP_VLAN to filter based on the VLAN
* packet flags to support VLAN filtering on multiple VLAN
* ethertypes (i.e. 0x8100 and 0x88a8) in DVM
*/
.rid = ICE_SW_LKUP_VLAN,
.fv_idx = ICE_PKT_FLAGS_0_TO_15_FV_IDX,
.ignore_valid = false,
.mask = ICE_PKT_VLAN_MASK,
.mask_valid = true,
.lkup_idx = ICE_SW_LKUP_VLAN_PKT_FLAGS_LKUP_IDX,
},
{
/* Update recipe ICE_SW_LKUP_PROMISC_VLAN to filter based on the
* outer/single VLAN in DVM
*/
.rid = ICE_SW_LKUP_PROMISC_VLAN,
.fv_idx = ICE_EXTERNAL_VLAN_ID_FV_IDX,
.ignore_valid = true,
.mask = 0,
.mask_valid = false, /* use pre-existing mask */
.lkup_idx = ICE_SW_LKUP_PROMISC_VLAN_LOC_LKUP_IDX,
},
};
/**
* ice_dvm_update_dflt_recipes - update default switch recipes in DVM
* @hw: hardware structure used to update the recipes
*/
static int ice_dvm_update_dflt_recipes(struct ice_hw *hw)
{
unsigned long i;
for (i = 0; i < ARRAY_SIZE(ice_dvm_dflt_recipes); i++) {
struct ice_update_recipe_lkup_idx_params *params;
int status;
params = &ice_dvm_dflt_recipes[i];
status = ice_update_recipe_lkup_idx(hw, params);
if (status) {
ice_debug(hw, ICE_DBG_INIT, "Failed to update RID %d lkup_idx %d fv_idx %d mask_valid %s mask 0x%04x\n",
params->rid, params->lkup_idx, params->fv_idx,
params->mask_valid ? "true" : "false",
params->mask);
return status;
}
}
return 0;
}
/**
* ice_aq_set_vlan_mode - set the VLAN mode of the device
* @hw: pointer to the HW structure
* @set_params: requested VLAN mode configuration
*
* Set VLAN Mode Parameters (0x020C)
*/
static int
ice_aq_set_vlan_mode(struct ice_hw *hw,
struct ice_aqc_set_vlan_mode *set_params)
{
u8 rdma_packet, mng_vlan_prot_id;
struct ice_aq_desc desc;
if (!set_params)
return -EINVAL;
if (set_params->l2tag_prio_tagging > ICE_AQ_VLAN_PRIO_TAG_MAX)
return -EINVAL;
rdma_packet = set_params->rdma_packet;
if (rdma_packet != ICE_AQ_SVM_VLAN_RDMA_PKT_FLAG_SETTING &&
rdma_packet != ICE_AQ_DVM_VLAN_RDMA_PKT_FLAG_SETTING)
return -EINVAL;
mng_vlan_prot_id = set_params->mng_vlan_prot_id;
if (mng_vlan_prot_id != ICE_AQ_VLAN_MNG_PROTOCOL_ID_OUTER &&
mng_vlan_prot_id != ICE_AQ_VLAN_MNG_PROTOCOL_ID_INNER)
return -EINVAL;
ice_fill_dflt_direct_cmd_desc(&desc,
ice_aqc_opc_set_vlan_mode_parameters);
desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
return ice_aq_send_cmd(hw, &desc, set_params, sizeof(*set_params),
NULL);
}
/**
* ice_set_dvm - sets up software and hardware for double VLAN mode
* @hw: pointer to the hardware structure
*/
static int ice_set_dvm(struct ice_hw *hw)
{
struct ice_aqc_set_vlan_mode params = { 0 };
int status;
params.l2tag_prio_tagging = ICE_AQ_VLAN_PRIO_TAG_OUTER_CTAG;
params.rdma_packet = ICE_AQ_DVM_VLAN_RDMA_PKT_FLAG_SETTING;
params.mng_vlan_prot_id = ICE_AQ_VLAN_MNG_PROTOCOL_ID_OUTER;
status = ice_aq_set_vlan_mode(hw, &params);
if (status) {
ice_debug(hw, ICE_DBG_INIT, "Failed to set double VLAN mode parameters, status %d\n",
status);
return status;
}
status = ice_dvm_update_dflt_recipes(hw);
if (status) {
ice_debug(hw, ICE_DBG_INIT, "Failed to update default recipes for double VLAN mode, status %d\n",
status);
return status;
}
status = ice_aq_set_port_params(hw->port_info, true, NULL);
if (status) {
ice_debug(hw, ICE_DBG_INIT, "Failed to set port in double VLAN mode, status %d\n",
status);
return status;
}
status = ice_set_dvm_boost_entries(hw);
if (status) {
ice_debug(hw, ICE_DBG_INIT, "Failed to set boost TCAM entries for double VLAN mode, status %d\n",
status);
return status;
}
return 0;
}
/**
* ice_set_svm - set single VLAN mode
* @hw: pointer to the HW structure
*/
static int ice_set_svm(struct ice_hw *hw)
{
struct ice_aqc_set_vlan_mode *set_params;
int status;
status = ice_aq_set_port_params(hw->port_info, false, NULL);
if (status) {
ice_debug(hw, ICE_DBG_INIT, "Failed to set port parameters for single VLAN mode\n");
return status;
}
set_params = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*set_params),
GFP_KERNEL);
if (!set_params)
return -ENOMEM;
/* default configuration for SVM configurations */
set_params->l2tag_prio_tagging = ICE_AQ_VLAN_PRIO_TAG_INNER_CTAG;
set_params->rdma_packet = ICE_AQ_SVM_VLAN_RDMA_PKT_FLAG_SETTING;
set_params->mng_vlan_prot_id = ICE_AQ_VLAN_MNG_PROTOCOL_ID_INNER;
status = ice_aq_set_vlan_mode(hw, set_params);
if (status)
ice_debug(hw, ICE_DBG_INIT, "Failed to configure port in single VLAN mode\n");
devm_kfree(ice_hw_to_dev(hw), set_params);
return status;
}
/**
* ice_set_vlan_mode
* @hw: pointer to the HW structure
*/
int ice_set_vlan_mode(struct ice_hw *hw)
{
if (!ice_is_dvm_supported(hw))
return 0;
if (!ice_set_dvm(hw))
return 0;
return ice_set_svm(hw);
}
/**
* ice_print_dvm_not_supported - print if DDP and/or FW doesn't support DVM
* @hw: pointer to the HW structure
*
* The purpose of this function is to print that QinQ is not supported due to
* incompatibilty from the DDP and/or FW. This will give a hint to the user to
* update one and/or both components if they expect QinQ functionality.
*/
static void ice_print_dvm_not_supported(struct ice_hw *hw)
{
bool pkg_supports_dvm = ice_pkg_supports_dvm(hw);
bool fw_supports_dvm = ice_fw_supports_dvm(hw);
if (!fw_supports_dvm && !pkg_supports_dvm)
dev_info(ice_hw_to_dev(hw), "QinQ functionality cannot be enabled on this device. Update your DDP package and NVM to versions that support QinQ.\n");
else if (!pkg_supports_dvm)
dev_info(ice_hw_to_dev(hw), "QinQ functionality cannot be enabled on this device. Update your DDP package to a version that supports QinQ.\n");
else if (!fw_supports_dvm)
dev_info(ice_hw_to_dev(hw), "QinQ functionality cannot be enabled on this device. Update your NVM to a version that supports QinQ.\n");
}
/**
* ice_post_pkg_dwnld_vlan_mode_cfg - configure VLAN mode after DDP download
* @hw: pointer to the HW structure
*
* This function is meant to configure any VLAN mode specific functionality
* after the global configuration lock has been released and the DDP has been
* downloaded.
*
* Since only one PF downloads the DDP and configures the VLAN mode there needs
* to be a way to configure the other PFs after the DDP has been downloaded and
* the global configuration lock has been released. All such code should go in
* this function.
*/
void ice_post_pkg_dwnld_vlan_mode_cfg(struct ice_hw *hw)
{
ice_cache_vlan_mode(hw);
if (ice_is_dvm_ena(hw))
ice_change_proto_id_to_dvm();
else
ice_print_dvm_not_supported(hw);
}