/* SPDX-License-Identifier: BSD-3-Clause */ /* Copyright (c) 2024, Intel Corporation * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * 3. Neither the name of the Intel Corporation nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "ice_common.h" #include "ice_ddp_common.h" /** * ice_pkg_get_supported_vlan_mode - chk if DDP supports Double VLAN mode (DVM) * @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 **)§); if (!bld) return ICE_ERR_NO_MEMORY; /* 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) { ice_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[0].bm[i]); ice_bitmap_from_array32(entry, arr, (u16)ICE_META_INIT_BITS); /* check if DVM is supported */ *dvm = ice_is_bit_set(entry, ICE_META_VLAN_MODE_BIT); } 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 ICE_ERR_PARAM; 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) { int status; bool pkg_supports_dvm; 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; } /** * 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 ICE_ERR_PARAM; if (set_params->l2tag_prio_tagging > ICE_AQ_VLAN_PRIO_TAG_MAX) return ICE_ERR_PARAM; 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 ICE_ERR_PARAM; 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 ICE_ERR_PARAM; 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_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, 0, false, false, false, NULL); if (status) { ice_debug(hw, ICE_DBG_INIT, "Failed to set port parameters for single VLAN mode\n"); return status; } set_params = (struct ice_aqc_set_vlan_mode *) ice_malloc(hw, sizeof(*set_params)); if (!set_params) return ICE_ERR_NO_MEMORY; /* 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"); ice_free(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; return ice_set_svm(hw); } /** * 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); }
