diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_common.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_common.c | 2233 |
1 files changed, 2233 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c new file mode 100644 index 000000000000..385f5d425d19 --- /dev/null +++ b/drivers/net/ethernet/intel/ice/ice_common.c @@ -0,0 +1,2233 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2018, Intel Corporation. */ + +#include "ice_common.h" +#include "ice_sched.h" +#include "ice_adminq_cmd.h" + +#define ICE_PF_RESET_WAIT_COUNT 200 + +#define ICE_NIC_FLX_ENTRY(hw, mdid, idx) \ + wr32((hw), GLFLXP_RXDID_FLX_WRD_##idx(ICE_RXDID_FLEX_NIC), \ + ((ICE_RX_OPC_MDID << \ + GLFLXP_RXDID_FLX_WRD_##idx##_RXDID_OPCODE_S) & \ + GLFLXP_RXDID_FLX_WRD_##idx##_RXDID_OPCODE_M) | \ + (((mdid) << GLFLXP_RXDID_FLX_WRD_##idx##_PROT_MDID_S) & \ + GLFLXP_RXDID_FLX_WRD_##idx##_PROT_MDID_M)) + +#define ICE_NIC_FLX_FLG_ENTRY(hw, flg_0, flg_1, flg_2, flg_3, idx) \ + wr32((hw), GLFLXP_RXDID_FLAGS(ICE_RXDID_FLEX_NIC, idx), \ + (((flg_0) << GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_S) & \ + GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_M) | \ + (((flg_1) << GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_1_S) & \ + GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_1_M) | \ + (((flg_2) << GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_2_S) & \ + GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_2_M) | \ + (((flg_3) << GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_3_S) & \ + GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_3_M)) + +/** + * 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; + + hw->mac_type = ICE_MAC_GENERIC; + return 0; +} + +/** + * ice_clear_pf_cfg - Clear PF configuration + * @hw: pointer to the hardware structure + */ +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_aq_discover_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; + + 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 = (struct ice_aqc_manage_mac_read_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; + } + + ether_addr_copy(hw->port_info->mac.lan_addr, resp->mac_addr); + ether_addr_copy(hw->port_info->mac.perm_addr, resp->mac_addr); + 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) + */ +static 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; + + cmd = &desc.params.get_phy; + + if (!pcaps || (report_mode & ~ICE_AQC_REPORT_MODE_M) || !pi) + 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(pi->hw, &desc, pcaps, pcaps_size, cd); + + if (!status && report_mode == ICE_AQC_REPORT_TOPO_CAP) + pi->phy.phy_type_low = le64_to_cpu(pcaps->phy_type_low); + + return status; +} + +/** + * 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) { + 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_25G_AUI_C2C: + case ICE_PHY_TYPE_LOW_40GBASE_SR4: + case ICE_PHY_TYPE_LOW_40GBASE_LR4: + 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: + return ICE_MEDIA_DA; + 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: + return ICE_MEDIA_BACKPLANE; + } + } + + 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_link_status *hw_link_info_old, *hw_link_info; + struct ice_aqc_get_link_status_data link_data = { 0 }; + struct ice_aqc_get_link_status *resp; + 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; + u16 cmd_flags; + + if (!pi) + return ICE_ERR_PARAM; + hw_link_info_old = &pi->phy.link_info_old; + hw_media_type = &pi->phy.media_type; + hw_link_info = &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(pi->hw, &desc, &link_data, sizeof(link_data), + cd); + + if (status) + return status; + + /* save off old link status information */ + *hw_link_info_old = *hw_link_info; + + /* update current link status information */ + hw_link_info->link_speed = le16_to_cpu(link_data.link_speed); + hw_link_info->phy_type_low = le64_to_cpu(link_data.phy_type_low); + *hw_media_type = ice_get_media_type(pi); + hw_link_info->link_info = link_data.link_info; + hw_link_info->an_info = link_data.an_info; + hw_link_info->ext_info = link_data.ext_info; + hw_link_info->max_frame_size = le16_to_cpu(link_data.max_frame_size); + hw_link_info->pacing = link_data.cfg & ICE_AQ_CFG_PACING_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; + + hw_link_info->lse_ena = + !!(resp->cmd_flags & cpu_to_le16(ICE_AQ_LSE_IS_ENABLED)); + + /* save link status information */ + if (link) + *link = *hw_link_info; + + /* flag cleared so calling functions don't call AQ again */ + pi->phy.get_link_info = false; + + return status; +} + +/** + * ice_init_flex_parser - initialize rx flex parser + * @hw: pointer to the hardware structure + * + * Function to initialize flex descriptors + */ +static void ice_init_flex_parser(struct ice_hw *hw) +{ + u8 idx = 0; + + ICE_NIC_FLX_ENTRY(hw, ICE_RX_MDID_HASH_LOW, 0); + ICE_NIC_FLX_ENTRY(hw, ICE_RX_MDID_HASH_HIGH, 1); + ICE_NIC_FLX_ENTRY(hw, ICE_RX_MDID_FLOW_ID_LOWER, 2); + ICE_NIC_FLX_ENTRY(hw, ICE_RX_MDID_FLOW_ID_HIGH, 3); + ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_PKT_FRG, ICE_RXFLG_UDP_GRE, + ICE_RXFLG_PKT_DSI, ICE_RXFLG_FIN, idx++); + ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_SYN, ICE_RXFLG_RST, + ICE_RXFLG_PKT_DSI, ICE_RXFLG_PKT_DSI, idx++); + ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_PKT_DSI, ICE_RXFLG_PKT_DSI, + ICE_RXFLG_EVLAN_x8100, ICE_RXFLG_EVLAN_x9100, + idx++); + ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_VLAN_x8100, ICE_RXFLG_TNL_VLAN, + ICE_RXFLG_TNL_MAC, ICE_RXFLG_TNL0, idx++); + ICE_NIC_FLX_FLG_ENTRY(hw, ICE_RXFLG_TNL1, ICE_RXFLG_TNL2, + ICE_RXFLG_PKT_DSI, ICE_RXFLG_PKT_DSI, idx); +} + +/** + * 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; + + 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); + + mutex_init(&sw->mac_list_lock); + INIT_LIST_HEAD(&sw->mac_list_head); + + mutex_init(&sw->vlan_list_lock); + INIT_LIST_HEAD(&sw->vlan_list_head); + + mutex_init(&sw->eth_m_list_lock); + INIT_LIST_HEAD(&sw->eth_m_list_head); + + mutex_init(&sw->promisc_list_lock); + INIT_LIST_HEAD(&sw->promisc_list_head); + + mutex_init(&sw->mac_vlan_list_lock); + INIT_LIST_HEAD(&sw->mac_vlan_list_head); + + 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; + + 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); + } + + mutex_destroy(&sw->mac_list_lock); + mutex_destroy(&sw->vlan_list_lock); + mutex_destroy(&sw->eth_m_list_lock); + mutex_destroy(&sw->promisc_list_lock); + mutex_destroy(&sw->mac_vlan_list_lock); + + devm_kfree(ice_hw_to_dev(hw), sw); +} + +/** + * 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; + + /* set these values to minimum allowed */ + hw->itr_gran_200 = ICE_ITR_GRAN_MIN_200; + hw->itr_gran_100 = ICE_ITR_GRAN_MIN_100; + hw->itr_gran_50 = ICE_ITR_GRAN_MIN_50; + hw->itr_gran_25 = ICE_ITR_GRAN_MIN_25; + + status = ice_init_all_ctrlq(hw); + if (status) + goto err_unroll_cqinit; + + status = ice_clear_pf_cfg(hw); + if (status) + goto err_unroll_cqinit; + + 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; + } + + /* 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, pcaps, NULL); + devm_kfree(ice_hw_to_dev(hw), pcaps); + if (status) + goto err_unroll_sched; + + /* 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; + + status = ice_init_fltr_mgmt_struct(hw); + if (status) + goto err_unroll_sched; + + /* Get port MAC information */ + mac_buf_len = sizeof(struct ice_aqc_manage_mac_read_resp); + mac_buf = devm_kzalloc(ice_hw_to_dev(hw), mac_buf_len, GFP_KERNEL); + + if (!mac_buf) + 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; + + ice_init_flex_parser(hw); + + 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_shutdown_all_ctrlq(hw); + return status; +} + +/** + * ice_deinit_hw - unroll initialization operations done by ice_init_hw + * @hw: pointer to the hardware structure + */ +void ice_deinit_hw(struct ice_hw *hw) +{ + ice_sched_cleanup_all(hw); + ice_shutdown_all_ctrlq(hw); + + if (hw->port_info) { + devm_kfree(ice_hw_to_dev(hw), hw->port_info); + hw->port_info = NULL; + } + + ice_cleanup_fltr_mgmt_struct(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_delay; + + /* 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_delay = ((rd32(hw, GLGEN_RSTCTL) & GLGEN_RSTCTL_GRSTDEL_M) >> + GLGEN_RSTCTL_GRSTDEL_S) + 10; + + for (cnt = 0; cnt < grst_delay; cnt++) { + mdelay(100); + reg = rd32(hw, GLGEN_RSTAT); + if (!(reg & GLGEN_RSTAT_DEVSTATE_M)) + break; + } + + if (cnt == grst_delay) { + 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_CORER_DONE_M | \ + GLNVM_ULD_GLOBR_DONE_M) + + /* Device is Active; check Global Reset processes are done */ + for (cnt = 0; cnt < ICE_PF_RESET_WAIT_COUNT; cnt++) { + reg = rd32(hw, GLNVM_ULD) & ICE_RESET_DONE_MASK; + if (reg == ICE_RESET_DONE_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)); + + for (cnt = 0; cnt < 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; + } + + 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), + { 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 + */ +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 }; + + ice_set_ctx((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, 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, 110, 171), + { 0 } +}; + +/** + * ice_debug_cq + * @hw: pointer to the hardware structure + * @mask: debug mask + * @desc: pointer to control queue descriptor + * @buf: pointer to command buffer + * @buf_len: max length of buf + * + * Dumps debug log about control command with descriptor contents. + */ +void ice_debug_cq(struct ice_hw *hw, u32 __maybe_unused mask, void *desc, + void *buf, u16 buf_len) +{ + struct ice_aq_desc *cq_desc = (struct ice_aq_desc *)desc; + u16 len; + +#ifndef CONFIG_DYNAMIC_DEBUG + if (!(mask & hw->debug_mask)) + return; +#endif + + if (!desc) + return; + + len = le16_to_cpu(cq_desc->datalen); + + ice_debug(hw, mask, + "CQ CMD: opcode 0x%04X, flags 0x%04X, datalen 0x%04X, retval 0x%04X\n", + le16_to_cpu(cq_desc->opcode), + le16_to_cpu(cq_desc->flags), + le16_to_cpu(cq_desc->datalen), le16_to_cpu(cq_desc->retval)); + ice_debug(hw, mask, "\tcookie (h,l) 0x%08X 0x%08X\n", + le32_to_cpu(cq_desc->cookie_high), + le32_to_cpu(cq_desc->cookie_low)); + ice_debug(hw, mask, "\tparam (0,1) 0x%08X 0x%08X\n", + le32_to_cpu(cq_desc->params.generic.param0), + le32_to_cpu(cq_desc->params.generic.param1)); + ice_debug(hw, mask, "\taddr (h,l) 0x%08X 0x%08X\n", + le32_to_cpu(cq_desc->params.generic.addr_high), + le32_to_cpu(cq_desc->params.generic.addr_low)); + if (buf && cq_desc->datalen != 0) { + ice_debug(hw, mask, "Buffer:\n"); + if (buf_len < len) + len = buf_len; + + ice_debug_array(hw, mask, 16, 1, (u8 *)buf, len); + } +} + +/* FW Admin Queue command wrappers */ + +/** + * 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) +{ + return ice_sq_send_cmd(hw, &hw->adminq, desc, buf, buf_size, cd); +} + +/** + * 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_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 = cpu_to_le32(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) + */ +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); + + 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. + * If the resource is held by someone else, the command completes with + * 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) + * + * 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) +{ +#define ICE_RES_POLLING_DELAY_MS 10 + u32 delay = ICE_RES_POLLING_DELAY_MS; + enum ice_status status; + u32 time_left = 0; + u32 timeout; + + status = ice_aq_req_res(hw, res, access, 0, &time_left, NULL); + + /* An admin queue return code of ICE_AQ_RC_EEXIST 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 (hw->adminq.sq_last_status == ICE_AQ_RC_EEXIST) { + 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 (hw->adminq.sq_last_status == ICE_AQ_RC_EEXIST) { + /* lock free, but no work to do */ + status = ICE_ERR_AQ_NO_WORK; + 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 Q 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_parse_caps - parse function/device capabilities + * @hw: pointer to the hw struct + * @buf: pointer to a buffer containing function/device capability records + * @cap_count: number of capability records in the list + * @opc: type of capabilities list to parse + * + * Helper function to parse function(0x000a)/device(0x000b) capabilities list. + */ +static void +ice_parse_caps(struct ice_hw *hw, void *buf, u32 cap_count, + enum ice_adminq_opc opc) +{ + struct ice_aqc_list_caps_elem *cap_resp; + struct ice_hw_func_caps *func_p = NULL; + struct ice_hw_dev_caps *dev_p = NULL; + struct ice_hw_common_caps *caps; + u32 i; + + if (!buf) + return; + + cap_resp = (struct ice_aqc_list_caps_elem *)buf; + + if (opc == ice_aqc_opc_list_dev_caps) { + dev_p = &hw->dev_caps; + caps = &dev_p->common_cap; + } else if (opc == ice_aqc_opc_list_func_caps) { + func_p = &hw->func_caps; + caps = &func_p->common_cap; + } else { + ice_debug(hw, ICE_DBG_INIT, "wrong opcode\n"); + return; + } + + for (i = 0; caps && i < cap_count; i++, cap_resp++) { + u32 logical_id = le32_to_cpu(cap_resp->logical_id); + u32 phys_id = le32_to_cpu(cap_resp->phys_id); + u32 number = le32_to_cpu(cap_resp->number); + u16 cap = le16_to_cpu(cap_resp->cap); + + switch (cap) { + case ICE_AQC_CAPS_VSI: + if (dev_p) { + dev_p->num_vsi_allocd_to_host = number; + ice_debug(hw, ICE_DBG_INIT, + "HW caps: Dev.VSI cnt = %d\n", + dev_p->num_vsi_allocd_to_host); + } else if (func_p) { + func_p->guaranteed_num_vsi = number; + ice_debug(hw, ICE_DBG_INIT, + "HW caps: Func.VSI cnt = %d\n", + func_p->guaranteed_num_vsi); + } + break; + case ICE_AQC_CAPS_RSS: + caps->rss_table_size = number; + caps->rss_table_entry_width = logical_id; + ice_debug(hw, ICE_DBG_INIT, + "HW caps: RSS table size = %d\n", + caps->rss_table_size); + ice_debug(hw, ICE_DBG_INIT, + "HW caps: RSS table width = %d\n", + 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, + "HW caps: Num Rx Qs = %d\n", caps->num_rxq); + ice_debug(hw, ICE_DBG_INIT, + "HW caps: Rx first queue ID = %d\n", + 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, + "HW caps: Num Tx Qs = %d\n", caps->num_txq); + ice_debug(hw, ICE_DBG_INIT, + "HW caps: Tx first queue ID = %d\n", + 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, + "HW caps: MSIX vector count = %d\n", + caps->num_msix_vectors); + ice_debug(hw, ICE_DBG_INIT, + "HW caps: MSIX first vector index = %d\n", + caps->msix_vector_first_id); + break; + case ICE_AQC_CAPS_MAX_MTU: + caps->max_mtu = number; + if (dev_p) + ice_debug(hw, ICE_DBG_INIT, + "HW caps: Dev.MaxMTU = %d\n", + caps->max_mtu); + else if (func_p) + ice_debug(hw, ICE_DBG_INIT, + "HW caps: func.MaxMTU = %d\n", + caps->max_mtu); + break; + default: + ice_debug(hw, ICE_DBG_INIT, + "HW caps: Unknown capability[%d]: 0x%x\n", i, + cap); + break; + } + } +} + +/** + * ice_aq_discover_caps - query function/device capabilities + * @hw: pointer to the hw struct + * @buf: a virtual buffer to hold the capabilities + * @buf_size: Size of the virtual buffer + * @data_size: Size of the returned data, or buf size needed if AQ err==ENOMEM + * @opc: capabilities type to discover - pass in the command opcode + * @cd: pointer to command details structure or NULL + * + * Get the function(0x000a)/device(0x000b) capabilities description from + * the firmware. + */ +static enum ice_status +ice_aq_discover_caps(struct ice_hw *hw, void *buf, u16 buf_size, u16 *data_size, + 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 (!status) + ice_parse_caps(hw, buf, le32_to_cpu(cmd->count), opc); + *data_size = le16_to_cpu(desc.datalen); + + return status; +} + +/** + * 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; + u16 data_size = 0; + u16 cbuf_len; + u8 retries; + + /* The driver doesn't know how many capabilities the device will return + * so the buffer size required isn't known ahead of time. The driver + * starts with cbuf_len and if this turns out to be insufficient, the + * device returns ICE_AQ_RC_ENOMEM and also the buffer size it needs. + * The driver then allocates the buffer of this size and retries the + * operation. So it follows that the retry count is 2. + */ +#define ICE_GET_CAP_BUF_COUNT 40 +#define ICE_GET_CAP_RETRY_COUNT 2 + + cbuf_len = ICE_GET_CAP_BUF_COUNT * + sizeof(struct ice_aqc_list_caps_elem); + + retries = ICE_GET_CAP_RETRY_COUNT; + + do { + void *cbuf; + + cbuf = devm_kzalloc(ice_hw_to_dev(hw), cbuf_len, GFP_KERNEL); + if (!cbuf) + return ICE_ERR_NO_MEMORY; + + status = ice_aq_discover_caps(hw, cbuf, cbuf_len, &data_size, + ice_aqc_opc_list_func_caps, NULL); + devm_kfree(ice_hw_to_dev(hw), cbuf); + + if (!status || hw->adminq.sq_last_status != ICE_AQ_RC_ENOMEM) + break; + + /* If ENOMEM is returned, try again with bigger buffer */ + cbuf_len = data_size; + } while (--retries); + + return status; +} + +/** + * 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, 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; + + /* Prep values for flags, sah, sal */ + cmd->sah = htons(*((u16 *)mac_addr)); + cmd->sal = htonl(*((u32 *)(mac_addr + 2))); + + 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_aq_set_phy_cfg + * @hw: pointer to the hw struct + * @lport: logical port number + * @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). + */ +static enum ice_status +ice_aq_set_phy_cfg(struct ice_hw *hw, u8 lport, + struct ice_aqc_set_phy_cfg_data *cfg, struct ice_sq_cd *cd) +{ + struct ice_aqc_set_phy_cfg *cmd; + struct ice_aq_desc desc; + + if (!cfg) + return ICE_ERR_PARAM; + + cmd = &desc.params.set_phy; + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_phy_cfg); + cmd->lport_num = lport; + + return ice_aq_send_cmd(hw, &desc, cfg, sizeof(*cfg), cd); +} + +/** + * ice_update_link_info - update status of the HW network link + * @pi: port info structure of the interested logical port + */ +static enum ice_status +ice_update_link_info(struct ice_port_info *pi) +{ + struct ice_aqc_get_phy_caps_data *pcaps; + struct ice_phy_info *phy_info; + enum ice_status status; + struct ice_hw *hw; + + if (!pi) + return ICE_ERR_PARAM; + + hw = pi->hw; + + pcaps = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*pcaps), GFP_KERNEL); + if (!pcaps) + return ICE_ERR_NO_MEMORY; + + phy_info = &pi->phy; + status = ice_aq_get_link_info(pi, true, NULL, NULL); + if (status) + goto out; + + if (phy_info->link_info.link_info & ICE_AQ_MEDIA_AVAILABLE) { + status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, + pcaps, NULL); + if (status) + goto out; + + memcpy(phy_info->link_info.module_type, &pcaps->module_type, + sizeof(phy_info->link_info.module_type)); + } +out: + devm_kfree(ice_hw_to_dev(hw), pcaps); + return status; +} + +/** + * ice_set_fc + * @pi: port information structure + * @aq_failures: pointer to status code, specific to ice_set_fc routine + * @atomic_restart: enable automatic link update + * + * Set the requested flow control mode. + */ +enum ice_status +ice_set_fc(struct ice_port_info *pi, u8 *aq_failures, bool atomic_restart) +{ + struct ice_aqc_set_phy_cfg_data cfg = { 0 }; + struct ice_aqc_get_phy_caps_data *pcaps; + enum ice_status status; + u8 pause_mask = 0x0; + struct ice_hw *hw; + + if (!pi) + return ICE_ERR_PARAM; + hw = pi->hw; + *aq_failures = ICE_SET_FC_AQ_FAIL_NONE; + + switch (pi->fc.req_mode) { + case ICE_FC_FULL: + pause_mask |= ICE_AQC_PHY_EN_TX_LINK_PAUSE; + pause_mask |= ICE_AQC_PHY_EN_RX_LINK_PAUSE; + break; + case ICE_FC_RX_PAUSE: + pause_mask |= ICE_AQC_PHY_EN_RX_LINK_PAUSE; + break; + case ICE_FC_TX_PAUSE: + pause_mask |= ICE_AQC_PHY_EN_TX_LINK_PAUSE; + break; + default: + break; + } + + pcaps = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*pcaps), GFP_KERNEL); + if (!pcaps) + return ICE_ERR_NO_MEMORY; + + /* Get the current phy config */ + status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps, + NULL); + if (status) { + *aq_failures = ICE_SET_FC_AQ_FAIL_GET; + goto out; + } + + /* clear the old pause settings */ + cfg.caps = pcaps->caps & ~(ICE_AQC_PHY_EN_TX_LINK_PAUSE | + ICE_AQC_PHY_EN_RX_LINK_PAUSE); + /* set the new capabilities */ + cfg.caps |= pause_mask; + /* If the capabilities have changed, then set the new config */ + if (cfg.caps != pcaps->caps) { + int retry_count, retry_max = 10; + + /* Auto restart link so settings take effect */ + if (atomic_restart) + cfg.caps |= ICE_AQ_PHY_ENA_ATOMIC_LINK; + /* Copy over all the old settings */ + cfg.phy_type_low = pcaps->phy_type_low; + cfg.low_power_ctrl = pcaps->low_power_ctrl; + cfg.eee_cap = pcaps->eee_cap; + cfg.eeer_value = pcaps->eeer_value; + cfg.link_fec_opt = pcaps->link_fec_options; + + status = ice_aq_set_phy_cfg(hw, pi->lport, &cfg, NULL); + if (status) { + *aq_failures = ICE_SET_FC_AQ_FAIL_SET; + goto out; + } + + /* Update the link info + * It sometimes takes a really long time for link to + * come back from the atomic reset. Thus, we wait a + * little bit. + */ + for (retry_count = 0; retry_count < retry_max; retry_count++) { + status = ice_update_link_info(pi); + + if (!status) + break; + + mdelay(100); + } + + if (status) + *aq_failures = ICE_SET_FC_AQ_FAIL_UPDATE; + } + +out: + devm_kfree(ice_hw_to_dev(hw), pcaps); + return status; +} + +/** + * ice_get_link_status - get status of the HW network link + * @pi: port information structure + * @link_up: pointer to bool (true/false = linkup/linkdown) + * + * Variable link_up is true if link is up, false if link is down. + * The variable link_up is invalid if status is non zero. As a + * result of this call, link status reporting becomes enabled + */ +enum ice_status ice_get_link_status(struct ice_port_info *pi, bool *link_up) +{ + struct ice_phy_info *phy_info; + enum ice_status status = 0; + + if (!pi) + return ICE_ERR_PARAM; + + phy_info = &pi->phy; + + if (phy_info->get_link_info) { + status = ice_update_link_info(pi); + + if (status) + ice_debug(pi->hw, ICE_DBG_LINK, + "get link status error, status = %d\n", + status); + } + + *link_up = phy_info->link_info.link_info & ICE_AQ_LINK_UP; + + return status; +} + +/** + * ice_aq_set_link_restart_an + * @pi: pointer to the port information structure + * @ena_link: if true: enable link, if false: disable link + * @cd: pointer to command details structure or NULL + * + * Sets up the link and restarts the Auto-Negotiation over the link. + */ +enum ice_status +ice_aq_set_link_restart_an(struct ice_port_info *pi, bool ena_link, + struct ice_sq_cd *cd) +{ + struct ice_aqc_restart_an *cmd; + struct ice_aq_desc desc; + + cmd = &desc.params.restart_an; + + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_restart_an); + + cmd->cmd_flags = ICE_AQC_RESTART_AN_LINK_RESTART; + cmd->lport_num = pi->lport; + if (ena_link) + cmd->cmd_flags |= ICE_AQC_RESTART_AN_LINK_ENABLE; + else + cmd->cmd_flags &= ~ICE_AQC_RESTART_AN_LINK_ENABLE; + + return ice_aq_send_cmd(pi->hw, &desc, NULL, 0, cd); +} + +/** + * ice_aq_set_event_mask + * @hw: pointer to the hw struct + * @port_num: port number of the physical function + * @mask: event mask to be set + * @cd: pointer to command details structure or NULL + * + * Set event mask (0x0613) + */ +enum ice_status +ice_aq_set_event_mask(struct ice_hw *hw, u8 port_num, u16 mask, + struct ice_sq_cd *cd) +{ + struct ice_aqc_set_event_mask *cmd; + struct ice_aq_desc desc; + + cmd = &desc.params.set_event_mask; + + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_event_mask); + + cmd->lport_num = port_num; + + cmd->event_mask = cpu_to_le16(mask); + + return ice_aq_send_cmd(hw, &desc, NULL, 0, cd); +} + +/** + * __ice_aq_get_set_rss_lut + * @hw: pointer to the hardware structure + * @vsi_id: VSI FW index + * @lut_type: LUT table type + * @lut: pointer to the LUT buffer provided by the caller + * @lut_size: size of the LUT buffer + * @glob_lut_idx: global LUT index + * @set: set true to set the table, false to get the table + * + * Internal function to get (0x0B05) or set (0x0B03) RSS look up table + */ +static enum ice_status +__ice_aq_get_set_rss_lut(struct ice_hw *hw, u16 vsi_id, u8 lut_type, u8 *lut, + u16 lut_size, u8 glob_lut_idx, bool set) +{ + struct ice_aqc_get_set_rss_lut *cmd_resp; + struct ice_aq_desc desc; + enum ice_status status; + u16 flags = 0; + + cmd_resp = &desc.params.get_set_rss_lut; + + if (set) { + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_rss_lut); + desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); + } else { + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_rss_lut); + } + + cmd_resp->vsi_id = cpu_to_le16(((vsi_id << + ICE_AQC_GSET_RSS_LUT_VSI_ID_S) & + ICE_AQC_GSET_RSS_LUT_VSI_ID_M) | + ICE_AQC_GSET_RSS_LUT_VSI_VALID); + + switch (lut_type) { + case ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_VSI: + case ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF: + case ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_GLOBAL: + flags |= ((lut_type << ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_S) & + ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_M); + break; + default: + status = ICE_ERR_PARAM; + goto ice_aq_get_set_rss_lut_exit; + } + + if (lut_type == ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_GLOBAL) { + flags |= ((glob_lut_idx << ICE_AQC_GSET_RSS_LUT_GLOBAL_IDX_S) & + ICE_AQC_GSET_RSS_LUT_GLOBAL_IDX_M); + + if (!set) + goto ice_aq_get_set_rss_lut_send; + } else if (lut_type == ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF) { + if (!set) + goto ice_aq_get_set_rss_lut_send; + } else { + goto ice_aq_get_set_rss_lut_send; + } + + /* LUT size is only valid for Global and PF table types */ + if (lut_size == ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128) { + flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_128_FLAG << + ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) & + ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M; + } else if (lut_size == ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_512) { + flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_512_FLAG << + ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) & + ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M; + } else if ((lut_size == ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K) && + (lut_type == ICE_AQC_GSET_RSS_LUT_TABLE_TYPE_PF)) { + flags |= (ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_2K_FLAG << + ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_S) & + ICE_AQC_GSET_RSS_LUT_TABLE_SIZE_M; + } else { + status = ICE_ERR_PARAM; + goto ice_aq_get_set_rss_lut_exit; + } + +ice_aq_get_set_rss_lut_send: + cmd_resp->flags = cpu_to_le16(flags); + status = ice_aq_send_cmd(hw, &desc, lut, lut_size, NULL); + +ice_aq_get_set_rss_lut_exit: + return status; +} + +/** + * ice_aq_get_rss_lut + * @hw: pointer to the hardware structure + * @vsi_id: VSI FW index + * @lut_type: LUT table type + * @lut: pointer to the LUT buffer provided by the caller + * @lut_size: size of the LUT buffer + * + * get the RSS lookup table, PF or VSI type + */ +enum ice_status +ice_aq_get_rss_lut(struct ice_hw *hw, u16 vsi_id, u8 lut_type, u8 *lut, + u16 lut_size) +{ + return __ice_aq_get_set_rss_lut(hw, vsi_id, lut_type, lut, lut_size, 0, + false); +} + +/** + * ice_aq_set_rss_lut + * @hw: pointer to the hardware structure + * @vsi_id: VSI FW index + * @lut_type: LUT table type + * @lut: pointer to the LUT buffer provided by the caller + * @lut_size: size of the LUT buffer + * + * set the RSS lookup table, PF or VSI type + */ +enum ice_status +ice_aq_set_rss_lut(struct ice_hw *hw, u16 vsi_id, u8 lut_type, u8 *lut, + u16 lut_size) +{ + return __ice_aq_get_set_rss_lut(hw, vsi_id, lut_type, lut, lut_size, 0, + true); +} + +/** + * __ice_aq_get_set_rss_key + * @hw: pointer to the hw struct + * @vsi_id: VSI FW index + * @key: pointer to key info struct + * @set: set true to set the key, false to get the key + * + * get (0x0B04) or set (0x0B02) the RSS key per VSI + */ +static enum +ice_status __ice_aq_get_set_rss_key(struct ice_hw *hw, u16 vsi_id, + struct ice_aqc_get_set_rss_keys *key, + bool set) +{ + struct ice_aqc_get_set_rss_key *cmd_resp; + u16 key_size = sizeof(*key); + struct ice_aq_desc desc; + + cmd_resp = &desc.params.get_set_rss_key; + + if (set) { + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_set_rss_key); + desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); + } else { + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_rss_key); + } + + cmd_resp->vsi_id = cpu_to_le16(((vsi_id << + ICE_AQC_GSET_RSS_KEY_VSI_ID_S) & + ICE_AQC_GSET_RSS_KEY_VSI_ID_M) | + ICE_AQC_GSET_RSS_KEY_VSI_VALID); + + return ice_aq_send_cmd(hw, &desc, key, key_size, NULL); +} + +/** + * ice_aq_get_rss_key + * @hw: pointer to the hw struct + * @vsi_id: VSI FW index + * @key: pointer to key info struct + * + * get the RSS key per VSI + */ +enum ice_status +ice_aq_get_rss_key(struct ice_hw *hw, u16 vsi_id, + struct ice_aqc_get_set_rss_keys *key) +{ + return __ice_aq_get_set_rss_key(hw, vsi_id, key, false); +} + +/** + * ice_aq_set_rss_key + * @hw: pointer to the hw struct + * @vsi_id: VSI FW index + * @keys: pointer to key info struct + * + * set the RSS key per VSI + */ +enum ice_status +ice_aq_set_rss_key(struct ice_hw *hw, u16 vsi_id, + struct ice_aqc_get_set_rss_keys *keys) +{ + return __ice_aq_get_set_rss_key(hw, vsi_id, keys, true); +} + +/** + * ice_aq_add_lan_txq + * @hw: pointer to the hardware structure + * @num_qgrps: Number of added queue groups + * @qg_list: list of queue groups to be added + * @buf_size: size of buffer for indirect command + * @cd: pointer to command details structure or NULL + * + * Add Tx LAN queue (0x0C30) + * + * NOTE: + * Prior to calling add Tx LAN queue: + * Initialize the following as part of the Tx queue context: + * Completion queue ID if the queue uses Completion queue, Quanta profile, + * Cache profile and Packet shaper profile. + * + * After add Tx LAN queue AQ command is completed: + * Interrupts should be associated with specific queues, + * Association of Tx queue to Doorbell queue is not part of Add LAN Tx queue + * flow. + */ +static enum ice_status +ice_aq_add_lan_txq(struct ice_hw *hw, u8 num_qgrps, + struct ice_aqc_add_tx_qgrp *qg_list, u16 buf_size, + struct ice_sq_cd *cd) +{ + u16 i, sum_header_size, sum_q_size = 0; + struct ice_aqc_add_tx_qgrp *list; + struct ice_aqc_add_txqs *cmd; + struct ice_aq_desc desc; + + cmd = &desc.params.add_txqs; + + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_add_txqs); + + if (!qg_list) + return ICE_ERR_PARAM; + + if (num_qgrps > ICE_LAN_TXQ_MAX_QGRPS) + return ICE_ERR_PARAM; + + sum_header_size = num_qgrps * + (sizeof(*qg_list) - sizeof(*qg_list->txqs)); + + list = qg_list; + for (i = 0; i < num_qgrps; i++) { + struct ice_aqc_add_txqs_perq *q = list->txqs; + + sum_q_size += list->num_txqs * sizeof(*q); + list = (struct ice_aqc_add_tx_qgrp *)(q + list->num_txqs); + } + + if (buf_size != (sum_header_size + sum_q_size)) + return ICE_ERR_PARAM; + + desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); + + cmd->num_qgrps = num_qgrps; + + return ice_aq_send_cmd(hw, &desc, qg_list, buf_size, cd); +} + +/** + * ice_aq_dis_lan_txq + * @hw: pointer to the hardware structure + * @num_qgrps: number of groups in the list + * @qg_list: the list of groups to disable + * @buf_size: the total size of the qg_list buffer in bytes + * @cd: pointer to command details structure or NULL + * + * Disable LAN Tx queue (0x0C31) + */ +static enum ice_status +ice_aq_dis_lan_txq(struct ice_hw *hw, u8 num_qgrps, + struct ice_aqc_dis_txq_item *qg_list, u16 buf_size, + struct ice_sq_cd *cd) +{ + struct ice_aqc_dis_txqs *cmd; + struct ice_aq_desc desc; + u16 i, sz = 0; + + cmd = &desc.params.dis_txqs; + ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_dis_txqs); + + if (!qg_list) + return ICE_ERR_PARAM; + + if (num_qgrps > ICE_LAN_TXQ_MAX_QGRPS) + return ICE_ERR_PARAM; + desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD); + cmd->num_entries = num_qgrps; + + for (i = 0; i < num_qgrps; ++i) { + /* Calculate the size taken up by the queue IDs in this group */ + sz += qg_list[i].num_qs * sizeof(qg_list[i].q_id); + + /* Add the size of the group header */ + sz += sizeof(qg_list[i]) - sizeof(qg_list[i].q_id); + + /* If the num of queues is even, add 2 bytes of padding */ + if ((qg_list[i].num_qs % 2) == 0) + sz += 2; + } + + if (buf_size != sz) + return ICE_ERR_PARAM; + + return ice_aq_send_cmd(hw, &desc, qg_list, buf_size, cd); +} + +/* End of FW Admin Queue command wrappers */ + +/** + * ice_write_byte - write a byte to a packed context structure + * @src_ctx: the context structure to read from + * @dest_ctx: the context to be written to + * @ce_info: a description of the struct to be filled + */ +static void ice_write_byte(u8 *src_ctx, u8 *dest_ctx, + const struct ice_ctx_ele *ce_info) +{ + u8 src_byte, dest_byte, mask; + u8 *from, *dest; + u16 shift_width; + + /* copy from the next struct field */ + from = src_ctx + ce_info->offset; + + /* prepare the bits and mask */ + shift_width = ce_info->lsb % 8; + mask = (u8)(BIT(ce_info->width) - 1); + + src_byte = *from; + src_byte &= mask; + + /* shift to correct alignment */ + mask <<= shift_width; + src_byte <<= shift_width; + + /* get the current bits from the target bit string */ + dest = dest_ctx + (ce_info->lsb / 8); + + memcpy(&dest_byte, dest, sizeof(dest_byte)); + + dest_byte &= ~mask; /* get the bits not changing */ + dest_byte |= src_byte; /* add in the new bits */ + + /* put it all back */ + memcpy(dest, &dest_byte, sizeof(dest_byte)); +} + +/** + * ice_write_word - write a word to a packed context structure + * @src_ctx: the context structure to read from + * @dest_ctx: the context to be written to + * @ce_info: a description of the struct to be filled + */ +static void ice_write_word(u8 *src_ctx, u8 *dest_ctx, + const struct ice_ctx_ele *ce_info) +{ + u16 src_word, mask; + __le16 dest_word; + u8 *from, *dest; + u16 shift_width; + + /* copy from the next struct field */ + from = src_ctx + ce_info->offset; + + /* prepare the bits and mask */ + shift_width = ce_info->lsb % 8; + mask = BIT(ce_info->width) - 1; + + /* don't swizzle the bits until after the mask because the mask bits + * will be in a different bit position on big endian machines + */ + src_word = *(u16 *)from; + src_word &= mask; + + /* shift to correct alignment */ + mask <<= shift_width; + src_word <<= shift_width; + + /* get the current bits from the target bit string */ + dest = dest_ctx + (ce_info->lsb / 8); + + memcpy(&dest_word, dest, sizeof(dest_word)); + + dest_word &= ~(cpu_to_le16(mask)); /* get the bits not changing */ + dest_word |= cpu_to_le16(src_word); /* add in the new bits */ + + /* put it all back */ + memcpy(dest, &dest_word, sizeof(dest_word)); +} + +/** + * ice_write_dword - write a dword to a packed context structure + * @src_ctx: the context structure to read from + * @dest_ctx: the context to be written to + * @ce_info: a description of the struct to be filled + */ +static void ice_write_dword(u8 *src_ctx, u8 *dest_ctx, + const struct ice_ctx_ele *ce_info) +{ + u32 src_dword, mask; + __le32 dest_dword; + u8 *from, *dest; + u16 shift_width; + + /* copy from the next struct field */ + from = src_ctx + ce_info->offset; + + /* prepare the bits and mask */ + shift_width = ce_info->lsb % 8; + + /* if the field width is exactly 32 on an x86 machine, then the shift + * operation will not work because the SHL instructions count is masked + * to 5 bits so the shift will do nothing + */ + if (ce_info->width < 32) + mask = BIT(ce_info->width) - 1; + else + mask = (u32)~0; + + /* don't swizzle the bits until after the mask because the mask bits + * will be in a different bit position on big endian machines + */ + src_dword = *(u32 *)from; + src_dword &= mask; + + /* shift to correct alignment */ + mask <<= shift_width; + src_dword <<= shift_width; + + /* get the current bits from the target bit string */ + dest = dest_ctx + (ce_info->lsb / 8); + + memcpy(&dest_dword, dest, sizeof(dest_dword)); + + dest_dword &= ~(cpu_to_le32(mask)); /* get the bits not changing */ + dest_dword |= cpu_to_le32(src_dword); /* add in the new bits */ + + /* put it all back */ + memcpy(dest, &dest_dword, sizeof(dest_dword)); +} + +/** + * ice_write_qword - write a qword to a packed context structure + * @src_ctx: the context structure to read from + * @dest_ctx: the context to be written to + * @ce_info: a description of the struct to be filled + */ +static void ice_write_qword(u8 *src_ctx, u8 *dest_ctx, + const struct ice_ctx_ele *ce_info) +{ + u64 src_qword, mask; + __le64 dest_qword; + u8 *from, *dest; + u16 shift_width; + + /* copy from the next struct field */ + from = src_ctx + ce_info->offset; + + /* prepare the bits and mask */ + shift_width = ce_info->lsb % 8; + + /* if the field width is exactly 64 on an x86 machine, then the shift + * operation will not work because the SHL instructions count is masked + * to 6 bits so the shift will do nothing + */ + if (ce_info->width < 64) + mask = BIT_ULL(ce_info->width) - 1; + else + mask = (u64)~0; + + /* don't swizzle the bits until after the mask because the mask bits + * will be in a different bit position on big endian machines + */ + src_qword = *(u64 *)from; + src_qword &= mask; + + /* shift to correct alignment */ + mask <<= shift_width; + src_qword <<= shift_width; + + /* get the current bits from the target bit string */ + dest = dest_ctx + (ce_info->lsb / 8); + + memcpy(&dest_qword, dest, sizeof(dest_qword)); + + dest_qword &= ~(cpu_to_le64(mask)); /* get the bits not changing */ + dest_qword |= cpu_to_le64(src_qword); /* add in the new bits */ + + /* put it all back */ + memcpy(dest, &dest_qword, sizeof(dest_qword)); +} + +/** + * ice_set_ctx - set context bits in packed structure + * @src_ctx: pointer to a generic non-packed context structure + * @dest_ctx: pointer to memory for the packed structure + * @ce_info: a description of the structure to be transformed + */ +enum ice_status +ice_set_ctx(u8 *src_ctx, u8 *dest_ctx, const struct ice_ctx_ele *ce_info) +{ + int f; + + for (f = 0; ce_info[f].width; f++) { + /* We have to deal with each element of the FW response + * using the correct size so that we are correct regardless + * of the endianness of the machine. + */ + switch (ce_info[f].size_of) { + case sizeof(u8): + ice_write_byte(src_ctx, dest_ctx, &ce_info[f]); + break; + case sizeof(u16): + ice_write_word(src_ctx, dest_ctx, &ce_info[f]); + break; + case sizeof(u32): + ice_write_dword(src_ctx, dest_ctx, &ce_info[f]); + break; + case sizeof(u64): + ice_write_qword(src_ctx, dest_ctx, &ce_info[f]); + break; + default: + return ICE_ERR_INVAL_SIZE; + } + } + + return 0; +} + +/** + * ice_ena_vsi_txq + * @pi: port information structure + * @vsi_id: VSI id + * @tc: tc number + * @num_qgrps: Number of added queue groups + * @buf: list of queue groups to be added + * @buf_size: size of buffer for indirect command + * @cd: pointer to command details structure or NULL + * + * This function adds one lan q + */ +enum ice_status +ice_ena_vsi_txq(struct ice_port_info *pi, u16 vsi_id, u8 tc, u8 num_qgrps, + struct ice_aqc_add_tx_qgrp *buf, u16 buf_size, + struct ice_sq_cd *cd) +{ + struct ice_aqc_txsched_elem_data node = { 0 }; + struct ice_sched_node *parent; + enum ice_status status; + struct ice_hw *hw; + + if (!pi || pi->port_state != ICE_SCHED_PORT_STATE_READY) + return ICE_ERR_CFG; + + if (num_qgrps > 1 || buf->num_txqs > 1) + return ICE_ERR_MAX_LIMIT; + + hw = pi->hw; + + mutex_lock(&pi->sched_lock); + + /* find a parent node */ + parent = ice_sched_get_free_qparent(pi, vsi_id, tc, + ICE_SCHED_NODE_OWNER_LAN); + if (!parent) { + status = ICE_ERR_PARAM; + goto ena_txq_exit; + } + buf->parent_teid = parent->info.node_teid; + node.parent_teid = parent->info.node_teid; + /* Mark that the values in the "generic" section as valid. The default + * value in the "generic" section is zero. This means that : + * - Scheduling mode is Bytes Per Second (BPS), indicated by Bit 0. + * - 0 priority among siblings, indicated by Bit 1-3. + * - WFQ, indicated by Bit 4. + * - 0 Adjustment value is used in PSM credit update flow, indicated by + * Bit 5-6. + * - Bit 7 is reserved. + * Without setting the generic section as valid in valid_sections, the + * Admin Q command will fail with error code ICE_AQ_RC_EINVAL. + */ + buf->txqs[0].info.valid_sections = ICE_AQC_ELEM_VALID_GENERIC; + + /* add the lan q */ + status = ice_aq_add_lan_txq(hw, num_qgrps, buf, buf_size, cd); + if (status) + goto ena_txq_exit; + + node.node_teid = buf->txqs[0].q_teid; + node.data.elem_type = ICE_AQC_ELEM_TYPE_LEAF; + + /* add a leaf node into schduler tree q layer */ + status = ice_sched_add_node(pi, hw->num_tx_sched_layers - 1, &node); + +ena_txq_exit: + mutex_unlock(&pi->sched_lock); + return status; +} + +/** + * ice_dis_vsi_txq + * @pi: port information structure + * @num_queues: number of queues + * @q_ids: pointer to the q_id array + * @q_teids: pointer to queue node teids + * @cd: pointer to command details structure or NULL + * + * This function removes queues and their corresponding nodes in SW DB + */ +enum ice_status +ice_dis_vsi_txq(struct ice_port_info *pi, u8 num_queues, u16 *q_ids, + u32 *q_teids, struct ice_sq_cd *cd) +{ + enum ice_status status = ICE_ERR_DOES_NOT_EXIST; + struct ice_aqc_dis_txq_item qg_list; + u16 i; + + if (!pi || pi->port_state != ICE_SCHED_PORT_STATE_READY) + return ICE_ERR_CFG; + + mutex_lock(&pi->sched_lock); + + for (i = 0; i < num_queues; i++) { + struct ice_sched_node *node; + + node = ice_sched_find_node_by_teid(pi->root, q_teids[i]); + if (!node) + continue; + qg_list.parent_teid = node->info.parent_teid; + qg_list.num_qs = 1; + qg_list.q_id[0] = cpu_to_le16(q_ids[i]); + status = ice_aq_dis_lan_txq(pi->hw, 1, &qg_list, + sizeof(qg_list), cd); + + if (status) + break; + ice_free_sched_node(pi, node); + } + mutex_unlock(&pi->sched_lock); + return status; +} + +/** + * ice_cfg_vsi_qs - configure the new/exisiting VSI queues + * @pi: port information structure + * @vsi_id: VSI Id + * @tc_bitmap: TC bitmap + * @maxqs: max queues array per TC + * @owner: lan or rdma + * + * This function adds/updates the VSI queues per TC. + */ +static enum ice_status +ice_cfg_vsi_qs(struct ice_port_info *pi, u16 vsi_id, u8 tc_bitmap, + u16 *maxqs, u8 owner) +{ + enum ice_status status = 0; + u8 i; + + if (!pi || pi->port_state != ICE_SCHED_PORT_STATE_READY) + return ICE_ERR_CFG; + + mutex_lock(&pi->sched_lock); + + for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) { + /* configuration is possible only if TC node is present */ + if (!ice_sched_get_tc_node(pi, i)) + continue; + + status = ice_sched_cfg_vsi(pi, vsi_id, i, maxqs[i], owner, + ice_is_tc_ena(tc_bitmap, i)); + if (status) + break; + } + + mutex_unlock(&pi->sched_lock); + return status; +} + +/** + * ice_cfg_vsi_lan - configure VSI lan queues + * @pi: port information structure + * @vsi_id: VSI Id + * @tc_bitmap: TC bitmap + * @max_lanqs: max lan queues array per TC + * + * This function adds/updates the VSI lan queues per TC. + */ +enum ice_status +ice_cfg_vsi_lan(struct ice_port_info *pi, u16 vsi_id, u8 tc_bitmap, + u16 *max_lanqs) +{ + return ice_cfg_vsi_qs(pi, vsi_id, tc_bitmap, max_lanqs, + ICE_SCHED_NODE_OWNER_LAN); +} |