diff options
Diffstat (limited to 'src/dpdk22/drivers/net/ixgbe/base/ixgbe_common.c')
| -rw-r--r-- | src/dpdk22/drivers/net/ixgbe/base/ixgbe_common.c | 5143 |
1 files changed, 0 insertions, 5143 deletions
diff --git a/src/dpdk22/drivers/net/ixgbe/base/ixgbe_common.c b/src/dpdk22/drivers/net/ixgbe/base/ixgbe_common.c deleted file mode 100644 index 08754c83..00000000 --- a/src/dpdk22/drivers/net/ixgbe/base/ixgbe_common.c +++ /dev/null @@ -1,5143 +0,0 @@ -/******************************************************************************* - -Copyright (c) 2001-2015, 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 "ixgbe_common.h" -#include "ixgbe_phy.h" -#include "ixgbe_dcb.h" -#include "ixgbe_dcb_82599.h" -#include "ixgbe_api.h" - -STATIC s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw); -STATIC s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw); -STATIC void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw); -STATIC s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw); -STATIC void ixgbe_standby_eeprom(struct ixgbe_hw *hw); -STATIC void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data, - u16 count); -STATIC u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count); -STATIC void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec); -STATIC void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec); -STATIC void ixgbe_release_eeprom(struct ixgbe_hw *hw); - -STATIC s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr); -STATIC s32 ixgbe_get_san_mac_addr_offset(struct ixgbe_hw *hw, - u16 *san_mac_offset); -STATIC s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset, - u16 words, u16 *data); -STATIC s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset, - u16 words, u16 *data); -STATIC s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw, - u16 offset); - -/** - * ixgbe_init_ops_generic - Inits function ptrs - * @hw: pointer to the hardware structure - * - * Initialize the function pointers. - **/ -s32 ixgbe_init_ops_generic(struct ixgbe_hw *hw) -{ - struct ixgbe_eeprom_info *eeprom = &hw->eeprom; - struct ixgbe_mac_info *mac = &hw->mac; - u32 eec = IXGBE_READ_REG(hw, IXGBE_EEC); - - DEBUGFUNC("ixgbe_init_ops_generic"); - - /* EEPROM */ - eeprom->ops.init_params = ixgbe_init_eeprom_params_generic; - /* If EEPROM is valid (bit 8 = 1), use EERD otherwise use bit bang */ - if (eec & IXGBE_EEC_PRES) { - eeprom->ops.read = ixgbe_read_eerd_generic; - eeprom->ops.read_buffer = ixgbe_read_eerd_buffer_generic; - } else { - eeprom->ops.read = ixgbe_read_eeprom_bit_bang_generic; - eeprom->ops.read_buffer = - ixgbe_read_eeprom_buffer_bit_bang_generic; - } - eeprom->ops.write = ixgbe_write_eeprom_generic; - eeprom->ops.write_buffer = ixgbe_write_eeprom_buffer_bit_bang_generic; - eeprom->ops.validate_checksum = - ixgbe_validate_eeprom_checksum_generic; - eeprom->ops.update_checksum = ixgbe_update_eeprom_checksum_generic; - eeprom->ops.calc_checksum = ixgbe_calc_eeprom_checksum_generic; - - /* MAC */ - mac->ops.init_hw = ixgbe_init_hw_generic; - mac->ops.reset_hw = NULL; - mac->ops.start_hw = ixgbe_start_hw_generic; - mac->ops.clear_hw_cntrs = ixgbe_clear_hw_cntrs_generic; - mac->ops.get_media_type = NULL; - mac->ops.get_supported_physical_layer = NULL; - mac->ops.enable_rx_dma = ixgbe_enable_rx_dma_generic; - mac->ops.get_mac_addr = ixgbe_get_mac_addr_generic; - mac->ops.stop_adapter = ixgbe_stop_adapter_generic; - mac->ops.get_bus_info = ixgbe_get_bus_info_generic; - mac->ops.set_lan_id = ixgbe_set_lan_id_multi_port_pcie; - mac->ops.acquire_swfw_sync = ixgbe_acquire_swfw_sync; - mac->ops.release_swfw_sync = ixgbe_release_swfw_sync; - mac->ops.prot_autoc_read = prot_autoc_read_generic; - mac->ops.prot_autoc_write = prot_autoc_write_generic; - - /* LEDs */ - mac->ops.led_on = ixgbe_led_on_generic; - mac->ops.led_off = ixgbe_led_off_generic; - mac->ops.blink_led_start = ixgbe_blink_led_start_generic; - mac->ops.blink_led_stop = ixgbe_blink_led_stop_generic; - - /* RAR, Multicast, VLAN */ - mac->ops.set_rar = ixgbe_set_rar_generic; - mac->ops.clear_rar = ixgbe_clear_rar_generic; - mac->ops.insert_mac_addr = NULL; - mac->ops.set_vmdq = NULL; - mac->ops.clear_vmdq = NULL; - mac->ops.init_rx_addrs = ixgbe_init_rx_addrs_generic; - mac->ops.update_uc_addr_list = ixgbe_update_uc_addr_list_generic; - mac->ops.update_mc_addr_list = ixgbe_update_mc_addr_list_generic; - mac->ops.enable_mc = ixgbe_enable_mc_generic; - mac->ops.disable_mc = ixgbe_disable_mc_generic; - mac->ops.clear_vfta = NULL; - mac->ops.set_vfta = NULL; - mac->ops.set_vlvf = NULL; - mac->ops.init_uta_tables = NULL; - mac->ops.enable_rx = ixgbe_enable_rx_generic; - mac->ops.disable_rx = ixgbe_disable_rx_generic; - - /* Flow Control */ - mac->ops.fc_enable = ixgbe_fc_enable_generic; - mac->ops.setup_fc = ixgbe_setup_fc_generic; - - /* Link */ - mac->ops.get_link_capabilities = NULL; - mac->ops.setup_link = NULL; - mac->ops.check_link = NULL; - mac->ops.dmac_config = NULL; - mac->ops.dmac_update_tcs = NULL; - mac->ops.dmac_config_tcs = NULL; - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_device_supports_autoneg_fc - Check if device supports autonegotiation - * of flow control - * @hw: pointer to hardware structure - * - * This function returns true if the device supports flow control - * autonegotiation, and false if it does not. - * - **/ -bool ixgbe_device_supports_autoneg_fc(struct ixgbe_hw *hw) -{ - bool supported = false; - ixgbe_link_speed speed; - bool link_up; - - DEBUGFUNC("ixgbe_device_supports_autoneg_fc"); - - switch (hw->phy.media_type) { - case ixgbe_media_type_fiber_qsfp: - case ixgbe_media_type_fiber: - hw->mac.ops.check_link(hw, &speed, &link_up, false); - /* if link is down, assume supported */ - if (link_up) - supported = speed == IXGBE_LINK_SPEED_1GB_FULL ? - true : false; - else - supported = true; - break; - case ixgbe_media_type_backplane: - supported = true; - break; - case ixgbe_media_type_copper: - /* only some copper devices support flow control autoneg */ - switch (hw->device_id) { - case IXGBE_DEV_ID_82599_T3_LOM: - case IXGBE_DEV_ID_X540T: - case IXGBE_DEV_ID_X540T1: - case IXGBE_DEV_ID_X550T: - case IXGBE_DEV_ID_X550EM_X_10G_T: - supported = true; - break; - default: - supported = false; - } - default: - break; - } - - ERROR_REPORT2(IXGBE_ERROR_UNSUPPORTED, - "Device %x does not support flow control autoneg", - hw->device_id); - return supported; -} - -/** - * ixgbe_setup_fc_generic - Set up flow control - * @hw: pointer to hardware structure - * - * Called at init time to set up flow control. - **/ -s32 ixgbe_setup_fc_generic(struct ixgbe_hw *hw) -{ - s32 ret_val = IXGBE_SUCCESS; - u32 reg = 0, reg_bp = 0; - u16 reg_cu = 0; - bool locked = false; - - DEBUGFUNC("ixgbe_setup_fc_generic"); - - /* Validate the requested mode */ - if (hw->fc.strict_ieee && hw->fc.requested_mode == ixgbe_fc_rx_pause) { - ERROR_REPORT1(IXGBE_ERROR_UNSUPPORTED, - "ixgbe_fc_rx_pause not valid in strict IEEE mode\n"); - ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS; - goto out; - } - - /* - * 10gig parts do not have a word in the EEPROM to determine the - * default flow control setting, so we explicitly set it to full. - */ - if (hw->fc.requested_mode == ixgbe_fc_default) - hw->fc.requested_mode = ixgbe_fc_full; - - /* - * Set up the 1G and 10G flow control advertisement registers so the - * HW will be able to do fc autoneg once the cable is plugged in. If - * we link at 10G, the 1G advertisement is harmless and vice versa. - */ - switch (hw->phy.media_type) { - case ixgbe_media_type_backplane: - /* some MAC's need RMW protection on AUTOC */ - ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, ®_bp); - if (ret_val != IXGBE_SUCCESS) - goto out; - - /* only backplane uses autoc so fall though */ - case ixgbe_media_type_fiber_qsfp: - case ixgbe_media_type_fiber: - reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA); - - break; - case ixgbe_media_type_copper: - hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_ADVT, - IXGBE_MDIO_AUTO_NEG_DEV_TYPE, ®_cu); - break; - default: - break; - } - - /* - * The possible values of fc.requested_mode are: - * 0: Flow control is completely disabled - * 1: Rx flow control is enabled (we can receive pause frames, - * but not send pause frames). - * 2: Tx flow control is enabled (we can send pause frames but - * we do not support receiving pause frames). - * 3: Both Rx and Tx flow control (symmetric) are enabled. - * other: Invalid. - */ - switch (hw->fc.requested_mode) { - case ixgbe_fc_none: - /* Flow control completely disabled by software override. */ - reg &= ~(IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE); - if (hw->phy.media_type == ixgbe_media_type_backplane) - reg_bp &= ~(IXGBE_AUTOC_SYM_PAUSE | - IXGBE_AUTOC_ASM_PAUSE); - else if (hw->phy.media_type == ixgbe_media_type_copper) - reg_cu &= ~(IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE); - break; - case ixgbe_fc_tx_pause: - /* - * Tx Flow control is enabled, and Rx Flow control is - * disabled by software override. - */ - reg |= IXGBE_PCS1GANA_ASM_PAUSE; - reg &= ~IXGBE_PCS1GANA_SYM_PAUSE; - if (hw->phy.media_type == ixgbe_media_type_backplane) { - reg_bp |= IXGBE_AUTOC_ASM_PAUSE; - reg_bp &= ~IXGBE_AUTOC_SYM_PAUSE; - } else if (hw->phy.media_type == ixgbe_media_type_copper) { - reg_cu |= IXGBE_TAF_ASM_PAUSE; - reg_cu &= ~IXGBE_TAF_SYM_PAUSE; - } - break; - case ixgbe_fc_rx_pause: - /* - * Rx Flow control is enabled and Tx Flow control is - * disabled by software override. Since there really - * isn't a way to advertise that we are capable of RX - * Pause ONLY, we will advertise that we support both - * symmetric and asymmetric Rx PAUSE, as such we fall - * through to the fc_full statement. Later, we will - * disable the adapter's ability to send PAUSE frames. - */ - case ixgbe_fc_full: - /* Flow control (both Rx and Tx) is enabled by SW override. */ - reg |= IXGBE_PCS1GANA_SYM_PAUSE | IXGBE_PCS1GANA_ASM_PAUSE; - if (hw->phy.media_type == ixgbe_media_type_backplane) - reg_bp |= IXGBE_AUTOC_SYM_PAUSE | - IXGBE_AUTOC_ASM_PAUSE; - else if (hw->phy.media_type == ixgbe_media_type_copper) - reg_cu |= IXGBE_TAF_SYM_PAUSE | IXGBE_TAF_ASM_PAUSE; - break; - default: - ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, - "Flow control param set incorrectly\n"); - ret_val = IXGBE_ERR_CONFIG; - goto out; - break; - } - - if (hw->mac.type < ixgbe_mac_X540) { - /* - * Enable auto-negotiation between the MAC & PHY; - * the MAC will advertise clause 37 flow control. - */ - IXGBE_WRITE_REG(hw, IXGBE_PCS1GANA, reg); - reg = IXGBE_READ_REG(hw, IXGBE_PCS1GLCTL); - - /* Disable AN timeout */ - if (hw->fc.strict_ieee) - reg &= ~IXGBE_PCS1GLCTL_AN_1G_TIMEOUT_EN; - - IXGBE_WRITE_REG(hw, IXGBE_PCS1GLCTL, reg); - DEBUGOUT1("Set up FC; PCS1GLCTL = 0x%08X\n", reg); - } - - /* - * AUTOC restart handles negotiation of 1G and 10G on backplane - * and copper. There is no need to set the PCS1GCTL register. - * - */ - if (hw->phy.media_type == ixgbe_media_type_backplane) { - reg_bp |= IXGBE_AUTOC_AN_RESTART; - ret_val = hw->mac.ops.prot_autoc_write(hw, reg_bp, locked); - if (ret_val) - goto out; - } else if ((hw->phy.media_type == ixgbe_media_type_copper) && - (ixgbe_device_supports_autoneg_fc(hw))) { - hw->phy.ops.write_reg(hw, IXGBE_MDIO_AUTO_NEG_ADVT, - IXGBE_MDIO_AUTO_NEG_DEV_TYPE, reg_cu); - } - - DEBUGOUT1("Set up FC; PCS1GLCTL = 0x%08X\n", reg); -out: - return ret_val; -} - -/** - * ixgbe_start_hw_generic - Prepare hardware for Tx/Rx - * @hw: pointer to hardware structure - * - * Starts the hardware by filling the bus info structure and media type, clears - * all on chip counters, initializes receive address registers, multicast - * table, VLAN filter table, calls routine to set up link and flow control - * settings, and leaves transmit and receive units disabled and uninitialized - **/ -s32 ixgbe_start_hw_generic(struct ixgbe_hw *hw) -{ - s32 ret_val; - u32 ctrl_ext; - - DEBUGFUNC("ixgbe_start_hw_generic"); - - /* Set the media type */ - hw->phy.media_type = hw->mac.ops.get_media_type(hw); - - /* PHY ops initialization must be done in reset_hw() */ - - /* Clear the VLAN filter table */ - hw->mac.ops.clear_vfta(hw); - - /* Clear statistics registers */ - hw->mac.ops.clear_hw_cntrs(hw); - - /* Set No Snoop Disable */ - ctrl_ext = IXGBE_READ_REG(hw, IXGBE_CTRL_EXT); - ctrl_ext |= IXGBE_CTRL_EXT_NS_DIS; - IXGBE_WRITE_REG(hw, IXGBE_CTRL_EXT, ctrl_ext); - IXGBE_WRITE_FLUSH(hw); - - /* Setup flow control */ - ret_val = ixgbe_setup_fc(hw); - if (ret_val != IXGBE_SUCCESS) - goto out; - - /* Clear adapter stopped flag */ - hw->adapter_stopped = false; - -out: - return ret_val; -} - -/** - * ixgbe_start_hw_gen2 - Init sequence for common device family - * @hw: pointer to hw structure - * - * Performs the init sequence common to the second generation - * of 10 GbE devices. - * Devices in the second generation: - * 82599 - * X540 - **/ -s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw) -{ - u32 i; - u32 regval; - - /* Clear the rate limiters */ - for (i = 0; i < hw->mac.max_tx_queues; i++) { - IXGBE_WRITE_REG(hw, IXGBE_RTTDQSEL, i); - IXGBE_WRITE_REG(hw, IXGBE_RTTBCNRC, 0); - } - IXGBE_WRITE_FLUSH(hw); - - /* Disable relaxed ordering */ - for (i = 0; i < hw->mac.max_tx_queues; i++) { - regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i)); - regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN; - IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), regval); - } - - for (i = 0; i < hw->mac.max_rx_queues; i++) { - regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); - regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN | - IXGBE_DCA_RXCTRL_HEAD_WRO_EN); - IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval); - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_init_hw_generic - Generic hardware initialization - * @hw: pointer to hardware structure - * - * Initialize the hardware by resetting the hardware, filling the bus info - * structure and media type, clears all on chip counters, initializes receive - * address registers, multicast table, VLAN filter table, calls routine to set - * up link and flow control settings, and leaves transmit and receive units - * disabled and uninitialized - **/ -s32 ixgbe_init_hw_generic(struct ixgbe_hw *hw) -{ - s32 status; - - DEBUGFUNC("ixgbe_init_hw_generic"); - - /* Reset the hardware */ - status = hw->mac.ops.reset_hw(hw); - - if (status == IXGBE_SUCCESS) { - /* Start the HW */ - status = hw->mac.ops.start_hw(hw); - } - - return status; -} - -/** - * ixgbe_clear_hw_cntrs_generic - Generic clear hardware counters - * @hw: pointer to hardware structure - * - * Clears all hardware statistics counters by reading them from the hardware - * Statistics counters are clear on read. - **/ -s32 ixgbe_clear_hw_cntrs_generic(struct ixgbe_hw *hw) -{ - u16 i = 0; - - DEBUGFUNC("ixgbe_clear_hw_cntrs_generic"); - - IXGBE_READ_REG(hw, IXGBE_CRCERRS); - IXGBE_READ_REG(hw, IXGBE_ILLERRC); - IXGBE_READ_REG(hw, IXGBE_ERRBC); - IXGBE_READ_REG(hw, IXGBE_MSPDC); - for (i = 0; i < 8; i++) - IXGBE_READ_REG(hw, IXGBE_MPC(i)); - - IXGBE_READ_REG(hw, IXGBE_MLFC); - IXGBE_READ_REG(hw, IXGBE_MRFC); - IXGBE_READ_REG(hw, IXGBE_RLEC); - IXGBE_READ_REG(hw, IXGBE_LXONTXC); - IXGBE_READ_REG(hw, IXGBE_LXOFFTXC); - if (hw->mac.type >= ixgbe_mac_82599EB) { - IXGBE_READ_REG(hw, IXGBE_LXONRXCNT); - IXGBE_READ_REG(hw, IXGBE_LXOFFRXCNT); - } else { - IXGBE_READ_REG(hw, IXGBE_LXONRXC); - IXGBE_READ_REG(hw, IXGBE_LXOFFRXC); - } - - for (i = 0; i < 8; i++) { - IXGBE_READ_REG(hw, IXGBE_PXONTXC(i)); - IXGBE_READ_REG(hw, IXGBE_PXOFFTXC(i)); - if (hw->mac.type >= ixgbe_mac_82599EB) { - IXGBE_READ_REG(hw, IXGBE_PXONRXCNT(i)); - IXGBE_READ_REG(hw, IXGBE_PXOFFRXCNT(i)); - } else { - IXGBE_READ_REG(hw, IXGBE_PXONRXC(i)); - IXGBE_READ_REG(hw, IXGBE_PXOFFRXC(i)); - } - } - if (hw->mac.type >= ixgbe_mac_82599EB) - for (i = 0; i < 8; i++) - IXGBE_READ_REG(hw, IXGBE_PXON2OFFCNT(i)); - IXGBE_READ_REG(hw, IXGBE_PRC64); - IXGBE_READ_REG(hw, IXGBE_PRC127); - IXGBE_READ_REG(hw, IXGBE_PRC255); - IXGBE_READ_REG(hw, IXGBE_PRC511); - IXGBE_READ_REG(hw, IXGBE_PRC1023); - IXGBE_READ_REG(hw, IXGBE_PRC1522); - IXGBE_READ_REG(hw, IXGBE_GPRC); - IXGBE_READ_REG(hw, IXGBE_BPRC); - IXGBE_READ_REG(hw, IXGBE_MPRC); - IXGBE_READ_REG(hw, IXGBE_GPTC); - IXGBE_READ_REG(hw, IXGBE_GORCL); - IXGBE_READ_REG(hw, IXGBE_GORCH); - IXGBE_READ_REG(hw, IXGBE_GOTCL); - IXGBE_READ_REG(hw, IXGBE_GOTCH); - if (hw->mac.type == ixgbe_mac_82598EB) - for (i = 0; i < 8; i++) - IXGBE_READ_REG(hw, IXGBE_RNBC(i)); - IXGBE_READ_REG(hw, IXGBE_RUC); - IXGBE_READ_REG(hw, IXGBE_RFC); - IXGBE_READ_REG(hw, IXGBE_ROC); - IXGBE_READ_REG(hw, IXGBE_RJC); - IXGBE_READ_REG(hw, IXGBE_MNGPRC); - IXGBE_READ_REG(hw, IXGBE_MNGPDC); - IXGBE_READ_REG(hw, IXGBE_MNGPTC); - IXGBE_READ_REG(hw, IXGBE_TORL); - IXGBE_READ_REG(hw, IXGBE_TORH); - IXGBE_READ_REG(hw, IXGBE_TPR); - IXGBE_READ_REG(hw, IXGBE_TPT); - IXGBE_READ_REG(hw, IXGBE_PTC64); - IXGBE_READ_REG(hw, IXGBE_PTC127); - IXGBE_READ_REG(hw, IXGBE_PTC255); - IXGBE_READ_REG(hw, IXGBE_PTC511); - IXGBE_READ_REG(hw, IXGBE_PTC1023); - IXGBE_READ_REG(hw, IXGBE_PTC1522); - IXGBE_READ_REG(hw, IXGBE_MPTC); - IXGBE_READ_REG(hw, IXGBE_BPTC); - for (i = 0; i < 16; i++) { - IXGBE_READ_REG(hw, IXGBE_QPRC(i)); - IXGBE_READ_REG(hw, IXGBE_QPTC(i)); - if (hw->mac.type >= ixgbe_mac_82599EB) { - IXGBE_READ_REG(hw, IXGBE_QBRC_L(i)); - IXGBE_READ_REG(hw, IXGBE_QBRC_H(i)); - IXGBE_READ_REG(hw, IXGBE_QBTC_L(i)); - IXGBE_READ_REG(hw, IXGBE_QBTC_H(i)); - IXGBE_READ_REG(hw, IXGBE_QPRDC(i)); - } else { - IXGBE_READ_REG(hw, IXGBE_QBRC(i)); - IXGBE_READ_REG(hw, IXGBE_QBTC(i)); - } - } - - if (hw->mac.type == ixgbe_mac_X550 || hw->mac.type == ixgbe_mac_X540) { - if (hw->phy.id == 0) - ixgbe_identify_phy(hw); - hw->phy.ops.read_reg(hw, IXGBE_PCRC8ECL, - IXGBE_MDIO_PCS_DEV_TYPE, &i); - hw->phy.ops.read_reg(hw, IXGBE_PCRC8ECH, - IXGBE_MDIO_PCS_DEV_TYPE, &i); - hw->phy.ops.read_reg(hw, IXGBE_LDPCECL, - IXGBE_MDIO_PCS_DEV_TYPE, &i); - hw->phy.ops.read_reg(hw, IXGBE_LDPCECH, - IXGBE_MDIO_PCS_DEV_TYPE, &i); - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_read_pba_string_generic - Reads part number string from EEPROM - * @hw: pointer to hardware structure - * @pba_num: stores the part number string from the EEPROM - * @pba_num_size: part number string buffer length - * - * Reads the part number string from the EEPROM. - **/ -s32 ixgbe_read_pba_string_generic(struct ixgbe_hw *hw, u8 *pba_num, - u32 pba_num_size) -{ - s32 ret_val; - u16 data; - u16 pba_ptr; - u16 offset; - u16 length; - - DEBUGFUNC("ixgbe_read_pba_string_generic"); - - if (pba_num == NULL) { - DEBUGOUT("PBA string buffer was null\n"); - return IXGBE_ERR_INVALID_ARGUMENT; - } - - ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data); - if (ret_val) { - DEBUGOUT("NVM Read Error\n"); - return ret_val; - } - - ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &pba_ptr); - if (ret_val) { - DEBUGOUT("NVM Read Error\n"); - return ret_val; - } - - /* - * if data is not ptr guard the PBA must be in legacy format which - * means pba_ptr is actually our second data word for the PBA number - * and we can decode it into an ascii string - */ - if (data != IXGBE_PBANUM_PTR_GUARD) { - DEBUGOUT("NVM PBA number is not stored as string\n"); - - /* we will need 11 characters to store the PBA */ - if (pba_num_size < 11) { - DEBUGOUT("PBA string buffer too small\n"); - return IXGBE_ERR_NO_SPACE; - } - - /* extract hex string from data and pba_ptr */ - pba_num[0] = (data >> 12) & 0xF; - pba_num[1] = (data >> 8) & 0xF; - pba_num[2] = (data >> 4) & 0xF; - pba_num[3] = data & 0xF; - pba_num[4] = (pba_ptr >> 12) & 0xF; - pba_num[5] = (pba_ptr >> 8) & 0xF; - pba_num[6] = '-'; - pba_num[7] = 0; - pba_num[8] = (pba_ptr >> 4) & 0xF; - pba_num[9] = pba_ptr & 0xF; - - /* put a null character on the end of our string */ - pba_num[10] = '\0'; - - /* switch all the data but the '-' to hex char */ - for (offset = 0; offset < 10; offset++) { - if (pba_num[offset] < 0xA) - pba_num[offset] += '0'; - else if (pba_num[offset] < 0x10) - pba_num[offset] += 'A' - 0xA; - } - - return IXGBE_SUCCESS; - } - - ret_val = hw->eeprom.ops.read(hw, pba_ptr, &length); - if (ret_val) { - DEBUGOUT("NVM Read Error\n"); - return ret_val; - } - - if (length == 0xFFFF || length == 0) { - DEBUGOUT("NVM PBA number section invalid length\n"); - return IXGBE_ERR_PBA_SECTION; - } - - /* check if pba_num buffer is big enough */ - if (pba_num_size < (((u32)length * 2) - 1)) { - DEBUGOUT("PBA string buffer too small\n"); - return IXGBE_ERR_NO_SPACE; - } - - /* trim pba length from start of string */ - pba_ptr++; - length--; - - for (offset = 0; offset < length; offset++) { - ret_val = hw->eeprom.ops.read(hw, pba_ptr + offset, &data); - if (ret_val) { - DEBUGOUT("NVM Read Error\n"); - return ret_val; - } - pba_num[offset * 2] = (u8)(data >> 8); - pba_num[(offset * 2) + 1] = (u8)(data & 0xFF); - } - pba_num[offset * 2] = '\0'; - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_read_pba_num_generic - Reads part number from EEPROM - * @hw: pointer to hardware structure - * @pba_num: stores the part number from the EEPROM - * - * Reads the part number from the EEPROM. - **/ -s32 ixgbe_read_pba_num_generic(struct ixgbe_hw *hw, u32 *pba_num) -{ - s32 ret_val; - u16 data; - - DEBUGFUNC("ixgbe_read_pba_num_generic"); - - ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM0_PTR, &data); - if (ret_val) { - DEBUGOUT("NVM Read Error\n"); - return ret_val; - } else if (data == IXGBE_PBANUM_PTR_GUARD) { - DEBUGOUT("NVM Not supported\n"); - return IXGBE_NOT_IMPLEMENTED; - } - *pba_num = (u32)(data << 16); - - ret_val = hw->eeprom.ops.read(hw, IXGBE_PBANUM1_PTR, &data); - if (ret_val) { - DEBUGOUT("NVM Read Error\n"); - return ret_val; - } - *pba_num |= data; - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_read_pba_raw - * @hw: pointer to the HW structure - * @eeprom_buf: optional pointer to EEPROM image - * @eeprom_buf_size: size of EEPROM image in words - * @max_pba_block_size: PBA block size limit - * @pba: pointer to output PBA structure - * - * Reads PBA from EEPROM image when eeprom_buf is not NULL. - * Reads PBA from physical EEPROM device when eeprom_buf is NULL. - * - **/ -s32 ixgbe_read_pba_raw(struct ixgbe_hw *hw, u16 *eeprom_buf, - u32 eeprom_buf_size, u16 max_pba_block_size, - struct ixgbe_pba *pba) -{ - s32 ret_val; - u16 pba_block_size; - - if (pba == NULL) - return IXGBE_ERR_PARAM; - - if (eeprom_buf == NULL) { - ret_val = hw->eeprom.ops.read_buffer(hw, IXGBE_PBANUM0_PTR, 2, - &pba->word[0]); - if (ret_val) - return ret_val; - } else { - if (eeprom_buf_size > IXGBE_PBANUM1_PTR) { - pba->word[0] = eeprom_buf[IXGBE_PBANUM0_PTR]; - pba->word[1] = eeprom_buf[IXGBE_PBANUM1_PTR]; - } else { - return IXGBE_ERR_PARAM; - } - } - - if (pba->word[0] == IXGBE_PBANUM_PTR_GUARD) { - if (pba->pba_block == NULL) - return IXGBE_ERR_PARAM; - - ret_val = ixgbe_get_pba_block_size(hw, eeprom_buf, - eeprom_buf_size, - &pba_block_size); - if (ret_val) - return ret_val; - - if (pba_block_size > max_pba_block_size) - return IXGBE_ERR_PARAM; - - if (eeprom_buf == NULL) { - ret_val = hw->eeprom.ops.read_buffer(hw, pba->word[1], - pba_block_size, - pba->pba_block); - if (ret_val) - return ret_val; - } else { - if (eeprom_buf_size > (u32)(pba->word[1] + - pba_block_size)) { - memcpy(pba->pba_block, - &eeprom_buf[pba->word[1]], - pba_block_size * sizeof(u16)); - } else { - return IXGBE_ERR_PARAM; - } - } - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_write_pba_raw - * @hw: pointer to the HW structure - * @eeprom_buf: optional pointer to EEPROM image - * @eeprom_buf_size: size of EEPROM image in words - * @pba: pointer to PBA structure - * - * Writes PBA to EEPROM image when eeprom_buf is not NULL. - * Writes PBA to physical EEPROM device when eeprom_buf is NULL. - * - **/ -s32 ixgbe_write_pba_raw(struct ixgbe_hw *hw, u16 *eeprom_buf, - u32 eeprom_buf_size, struct ixgbe_pba *pba) -{ - s32 ret_val; - - if (pba == NULL) - return IXGBE_ERR_PARAM; - - if (eeprom_buf == NULL) { - ret_val = hw->eeprom.ops.write_buffer(hw, IXGBE_PBANUM0_PTR, 2, - &pba->word[0]); - if (ret_val) - return ret_val; - } else { - if (eeprom_buf_size > IXGBE_PBANUM1_PTR) { - eeprom_buf[IXGBE_PBANUM0_PTR] = pba->word[0]; - eeprom_buf[IXGBE_PBANUM1_PTR] = pba->word[1]; - } else { - return IXGBE_ERR_PARAM; - } - } - - if (pba->word[0] == IXGBE_PBANUM_PTR_GUARD) { - if (pba->pba_block == NULL) - return IXGBE_ERR_PARAM; - - if (eeprom_buf == NULL) { - ret_val = hw->eeprom.ops.write_buffer(hw, pba->word[1], - pba->pba_block[0], - pba->pba_block); - if (ret_val) - return ret_val; - } else { - if (eeprom_buf_size > (u32)(pba->word[1] + - pba->pba_block[0])) { - memcpy(&eeprom_buf[pba->word[1]], - pba->pba_block, - pba->pba_block[0] * sizeof(u16)); - } else { - return IXGBE_ERR_PARAM; - } - } - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_get_pba_block_size - * @hw: pointer to the HW structure - * @eeprom_buf: optional pointer to EEPROM image - * @eeprom_buf_size: size of EEPROM image in words - * @pba_data_size: pointer to output variable - * - * Returns the size of the PBA block in words. Function operates on EEPROM - * image if the eeprom_buf pointer is not NULL otherwise it accesses physical - * EEPROM device. - * - **/ -s32 ixgbe_get_pba_block_size(struct ixgbe_hw *hw, u16 *eeprom_buf, - u32 eeprom_buf_size, u16 *pba_block_size) -{ - s32 ret_val; - u16 pba_word[2]; - u16 length; - - DEBUGFUNC("ixgbe_get_pba_block_size"); - - if (eeprom_buf == NULL) { - ret_val = hw->eeprom.ops.read_buffer(hw, IXGBE_PBANUM0_PTR, 2, - &pba_word[0]); - if (ret_val) - return ret_val; - } else { - if (eeprom_buf_size > IXGBE_PBANUM1_PTR) { - pba_word[0] = eeprom_buf[IXGBE_PBANUM0_PTR]; - pba_word[1] = eeprom_buf[IXGBE_PBANUM1_PTR]; - } else { - return IXGBE_ERR_PARAM; - } - } - - if (pba_word[0] == IXGBE_PBANUM_PTR_GUARD) { - if (eeprom_buf == NULL) { - ret_val = hw->eeprom.ops.read(hw, pba_word[1] + 0, - &length); - if (ret_val) - return ret_val; - } else { - if (eeprom_buf_size > pba_word[1]) - length = eeprom_buf[pba_word[1] + 0]; - else - return IXGBE_ERR_PARAM; - } - - if (length == 0xFFFF || length == 0) - return IXGBE_ERR_PBA_SECTION; - } else { - /* PBA number in legacy format, there is no PBA Block. */ - length = 0; - } - - if (pba_block_size != NULL) - *pba_block_size = length; - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_get_mac_addr_generic - Generic get MAC address - * @hw: pointer to hardware structure - * @mac_addr: Adapter MAC address - * - * Reads the adapter's MAC address from first Receive Address Register (RAR0) - * A reset of the adapter must be performed prior to calling this function - * in order for the MAC address to have been loaded from the EEPROM into RAR0 - **/ -s32 ixgbe_get_mac_addr_generic(struct ixgbe_hw *hw, u8 *mac_addr) -{ - u32 rar_high; - u32 rar_low; - u16 i; - - DEBUGFUNC("ixgbe_get_mac_addr_generic"); - - rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(0)); - rar_low = IXGBE_READ_REG(hw, IXGBE_RAL(0)); - - for (i = 0; i < 4; i++) - mac_addr[i] = (u8)(rar_low >> (i*8)); - - for (i = 0; i < 2; i++) - mac_addr[i+4] = (u8)(rar_high >> (i*8)); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_set_pci_config_data_generic - Generic store PCI bus info - * @hw: pointer to hardware structure - * @link_status: the link status returned by the PCI config space - * - * Stores the PCI bus info (speed, width, type) within the ixgbe_hw structure - **/ -void ixgbe_set_pci_config_data_generic(struct ixgbe_hw *hw, u16 link_status) -{ - struct ixgbe_mac_info *mac = &hw->mac; - - if (hw->bus.type == ixgbe_bus_type_unknown) - hw->bus.type = ixgbe_bus_type_pci_express; - - switch (link_status & IXGBE_PCI_LINK_WIDTH) { - case IXGBE_PCI_LINK_WIDTH_1: - hw->bus.width = ixgbe_bus_width_pcie_x1; - break; - case IXGBE_PCI_LINK_WIDTH_2: - hw->bus.width = ixgbe_bus_width_pcie_x2; - break; - case IXGBE_PCI_LINK_WIDTH_4: - hw->bus.width = ixgbe_bus_width_pcie_x4; - break; - case IXGBE_PCI_LINK_WIDTH_8: - hw->bus.width = ixgbe_bus_width_pcie_x8; - break; - default: - hw->bus.width = ixgbe_bus_width_unknown; - break; - } - - switch (link_status & IXGBE_PCI_LINK_SPEED) { - case IXGBE_PCI_LINK_SPEED_2500: - hw->bus.speed = ixgbe_bus_speed_2500; - break; - case IXGBE_PCI_LINK_SPEED_5000: - hw->bus.speed = ixgbe_bus_speed_5000; - break; - case IXGBE_PCI_LINK_SPEED_8000: - hw->bus.speed = ixgbe_bus_speed_8000; - break; - default: - hw->bus.speed = ixgbe_bus_speed_unknown; - break; - } - - mac->ops.set_lan_id(hw); -} - -/** - * ixgbe_get_bus_info_generic - Generic set PCI bus info - * @hw: pointer to hardware structure - * - * Gets the PCI bus info (speed, width, type) then calls helper function to - * store this data within the ixgbe_hw structure. - **/ -s32 ixgbe_get_bus_info_generic(struct ixgbe_hw *hw) -{ - u16 link_status; - - DEBUGFUNC("ixgbe_get_bus_info_generic"); - - /* Get the negotiated link width and speed from PCI config space */ - link_status = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_LINK_STATUS); - - ixgbe_set_pci_config_data_generic(hw, link_status); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_set_lan_id_multi_port_pcie - Set LAN id for PCIe multiple port devices - * @hw: pointer to the HW structure - * - * Determines the LAN function id by reading memory-mapped registers - * and swaps the port value if requested. - **/ -void ixgbe_set_lan_id_multi_port_pcie(struct ixgbe_hw *hw) -{ - struct ixgbe_bus_info *bus = &hw->bus; - u32 reg; - - DEBUGFUNC("ixgbe_set_lan_id_multi_port_pcie"); - - reg = IXGBE_READ_REG(hw, IXGBE_STATUS); - bus->func = (reg & IXGBE_STATUS_LAN_ID) >> IXGBE_STATUS_LAN_ID_SHIFT; - bus->lan_id = bus->func; - - /* check for a port swap */ - reg = IXGBE_READ_REG(hw, IXGBE_FACTPS); - if (reg & IXGBE_FACTPS_LFS) - bus->func ^= 0x1; -} - -/** - * ixgbe_stop_adapter_generic - Generic stop Tx/Rx units - * @hw: pointer to hardware structure - * - * Sets the adapter_stopped flag within ixgbe_hw struct. Clears interrupts, - * disables transmit and receive units. The adapter_stopped flag is used by - * the shared code and drivers to determine if the adapter is in a stopped - * state and should not touch the hardware. - **/ -s32 ixgbe_stop_adapter_generic(struct ixgbe_hw *hw) -{ - u32 reg_val; - u16 i; - - DEBUGFUNC("ixgbe_stop_adapter_generic"); - - /* - * Set the adapter_stopped flag so other driver functions stop touching - * the hardware - */ - hw->adapter_stopped = true; - - /* Disable the receive unit */ - ixgbe_disable_rx(hw); - - /* Clear interrupt mask to stop interrupts from being generated */ - IXGBE_WRITE_REG(hw, IXGBE_EIMC, IXGBE_IRQ_CLEAR_MASK); - - /* Clear any pending interrupts, flush previous writes */ - IXGBE_READ_REG(hw, IXGBE_EICR); - - /* Disable the transmit unit. Each queue must be disabled. */ - for (i = 0; i < hw->mac.max_tx_queues; i++) - IXGBE_WRITE_REG(hw, IXGBE_TXDCTL(i), IXGBE_TXDCTL_SWFLSH); - - /* Disable the receive unit by stopping each queue */ - for (i = 0; i < hw->mac.max_rx_queues; i++) { - reg_val = IXGBE_READ_REG(hw, IXGBE_RXDCTL(i)); - reg_val &= ~IXGBE_RXDCTL_ENABLE; - reg_val |= IXGBE_RXDCTL_SWFLSH; - IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(i), reg_val); - } - - /* flush all queues disables */ - IXGBE_WRITE_FLUSH(hw); - msec_delay(2); - - /* - * Prevent the PCI-E bus from hanging by disabling PCI-E master - * access and verify no pending requests - */ - return ixgbe_disable_pcie_master(hw); -} - -/** - * ixgbe_led_on_generic - Turns on the software controllable LEDs. - * @hw: pointer to hardware structure - * @index: led number to turn on - **/ -s32 ixgbe_led_on_generic(struct ixgbe_hw *hw, u32 index) -{ - u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); - - DEBUGFUNC("ixgbe_led_on_generic"); - - /* To turn on the LED, set mode to ON. */ - led_reg &= ~IXGBE_LED_MODE_MASK(index); - led_reg |= IXGBE_LED_ON << IXGBE_LED_MODE_SHIFT(index); - IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg); - IXGBE_WRITE_FLUSH(hw); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_led_off_generic - Turns off the software controllable LEDs. - * @hw: pointer to hardware structure - * @index: led number to turn off - **/ -s32 ixgbe_led_off_generic(struct ixgbe_hw *hw, u32 index) -{ - u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); - - DEBUGFUNC("ixgbe_led_off_generic"); - - /* To turn off the LED, set mode to OFF. */ - led_reg &= ~IXGBE_LED_MODE_MASK(index); - led_reg |= IXGBE_LED_OFF << IXGBE_LED_MODE_SHIFT(index); - IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg); - IXGBE_WRITE_FLUSH(hw); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_init_eeprom_params_generic - Initialize EEPROM params - * @hw: pointer to hardware structure - * - * Initializes the EEPROM parameters ixgbe_eeprom_info within the - * ixgbe_hw struct in order to set up EEPROM access. - **/ -s32 ixgbe_init_eeprom_params_generic(struct ixgbe_hw *hw) -{ - struct ixgbe_eeprom_info *eeprom = &hw->eeprom; - u32 eec; - u16 eeprom_size; - - DEBUGFUNC("ixgbe_init_eeprom_params_generic"); - - if (eeprom->type == ixgbe_eeprom_uninitialized) { - eeprom->type = ixgbe_eeprom_none; - /* Set default semaphore delay to 10ms which is a well - * tested value */ - eeprom->semaphore_delay = 10; - /* Clear EEPROM page size, it will be initialized as needed */ - eeprom->word_page_size = 0; - - /* - * Check for EEPROM present first. - * If not present leave as none - */ - eec = IXGBE_READ_REG(hw, IXGBE_EEC); - if (eec & IXGBE_EEC_PRES) { - eeprom->type = ixgbe_eeprom_spi; - - /* - * SPI EEPROM is assumed here. This code would need to - * change if a future EEPROM is not SPI. - */ - eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >> - IXGBE_EEC_SIZE_SHIFT); - eeprom->word_size = 1 << (eeprom_size + - IXGBE_EEPROM_WORD_SIZE_SHIFT); - } - - if (eec & IXGBE_EEC_ADDR_SIZE) - eeprom->address_bits = 16; - else - eeprom->address_bits = 8; - DEBUGOUT3("Eeprom params: type = %d, size = %d, address bits: " - "%d\n", eeprom->type, eeprom->word_size, - eeprom->address_bits); - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_write_eeprom_buffer_bit_bang_generic - Write EEPROM using bit-bang - * @hw: pointer to hardware structure - * @offset: offset within the EEPROM to write - * @words: number of word(s) - * @data: 16 bit word(s) to write to EEPROM - * - * Reads 16 bit word(s) from EEPROM through bit-bang method - **/ -s32 ixgbe_write_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset, - u16 words, u16 *data) -{ - s32 status = IXGBE_SUCCESS; - u16 i, count; - - DEBUGFUNC("ixgbe_write_eeprom_buffer_bit_bang_generic"); - - hw->eeprom.ops.init_params(hw); - - if (words == 0) { - status = IXGBE_ERR_INVALID_ARGUMENT; - goto out; - } - - if (offset + words > hw->eeprom.word_size) { - status = IXGBE_ERR_EEPROM; - goto out; - } - - /* - * The EEPROM page size cannot be queried from the chip. We do lazy - * initialization. It is worth to do that when we write large buffer. - */ - if ((hw->eeprom.word_page_size == 0) && - (words > IXGBE_EEPROM_PAGE_SIZE_MAX)) - ixgbe_detect_eeprom_page_size_generic(hw, offset); - - /* - * We cannot hold synchronization semaphores for too long - * to avoid other entity starvation. However it is more efficient - * to read in bursts than synchronizing access for each word. - */ - for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) { - count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ? - IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i); - status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset + i, - count, &data[i]); - - if (status != IXGBE_SUCCESS) - break; - } - -out: - return status; -} - -/** - * ixgbe_write_eeprom_buffer_bit_bang - Writes 16 bit word(s) to EEPROM - * @hw: pointer to hardware structure - * @offset: offset within the EEPROM to be written to - * @words: number of word(s) - * @data: 16 bit word(s) to be written to the EEPROM - * - * If ixgbe_eeprom_update_checksum is not called after this function, the - * EEPROM will most likely contain an invalid checksum. - **/ -STATIC s32 ixgbe_write_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset, - u16 words, u16 *data) -{ - s32 status; - u16 word; - u16 page_size; - u16 i; - u8 write_opcode = IXGBE_EEPROM_WRITE_OPCODE_SPI; - - DEBUGFUNC("ixgbe_write_eeprom_buffer_bit_bang"); - - /* Prepare the EEPROM for writing */ - status = ixgbe_acquire_eeprom(hw); - - if (status == IXGBE_SUCCESS) { - if (ixgbe_ready_eeprom(hw) != IXGBE_SUCCESS) { - ixgbe_release_eeprom(hw); - status = IXGBE_ERR_EEPROM; - } - } - - if (status == IXGBE_SUCCESS) { - for (i = 0; i < words; i++) { - ixgbe_standby_eeprom(hw); - - /* Send the WRITE ENABLE command (8 bit opcode ) */ - ixgbe_shift_out_eeprom_bits(hw, - IXGBE_EEPROM_WREN_OPCODE_SPI, - IXGBE_EEPROM_OPCODE_BITS); - - ixgbe_standby_eeprom(hw); - - /* - * Some SPI eeproms use the 8th address bit embedded - * in the opcode - */ - if ((hw->eeprom.address_bits == 8) && - ((offset + i) >= 128)) - write_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI; - - /* Send the Write command (8-bit opcode + addr) */ - ixgbe_shift_out_eeprom_bits(hw, write_opcode, - IXGBE_EEPROM_OPCODE_BITS); - ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2), - hw->eeprom.address_bits); - - page_size = hw->eeprom.word_page_size; - - /* Send the data in burst via SPI*/ - do { - word = data[i]; - word = (word >> 8) | (word << 8); - ixgbe_shift_out_eeprom_bits(hw, word, 16); - - if (page_size == 0) - break; - - /* do not wrap around page */ - if (((offset + i) & (page_size - 1)) == - (page_size - 1)) - break; - } while (++i < words); - - ixgbe_standby_eeprom(hw); - msec_delay(10); - } - /* Done with writing - release the EEPROM */ - ixgbe_release_eeprom(hw); - } - - return status; -} - -/** - * ixgbe_write_eeprom_generic - Writes 16 bit value to EEPROM - * @hw: pointer to hardware structure - * @offset: offset within the EEPROM to be written to - * @data: 16 bit word to be written to the EEPROM - * - * If ixgbe_eeprom_update_checksum is not called after this function, the - * EEPROM will most likely contain an invalid checksum. - **/ -s32 ixgbe_write_eeprom_generic(struct ixgbe_hw *hw, u16 offset, u16 data) -{ - s32 status; - - DEBUGFUNC("ixgbe_write_eeprom_generic"); - - hw->eeprom.ops.init_params(hw); - - if (offset >= hw->eeprom.word_size) { - status = IXGBE_ERR_EEPROM; - goto out; - } - - status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset, 1, &data); - -out: - return status; -} - -/** - * ixgbe_read_eeprom_buffer_bit_bang_generic - Read EEPROM using bit-bang - * @hw: pointer to hardware structure - * @offset: offset within the EEPROM to be read - * @data: read 16 bit words(s) from EEPROM - * @words: number of word(s) - * - * Reads 16 bit word(s) from EEPROM through bit-bang method - **/ -s32 ixgbe_read_eeprom_buffer_bit_bang_generic(struct ixgbe_hw *hw, u16 offset, - u16 words, u16 *data) -{ - s32 status = IXGBE_SUCCESS; - u16 i, count; - - DEBUGFUNC("ixgbe_read_eeprom_buffer_bit_bang_generic"); - - hw->eeprom.ops.init_params(hw); - - if (words == 0) { - status = IXGBE_ERR_INVALID_ARGUMENT; - goto out; - } - - if (offset + words > hw->eeprom.word_size) { - status = IXGBE_ERR_EEPROM; - goto out; - } - - /* - * We cannot hold synchronization semaphores for too long - * to avoid other entity starvation. However it is more efficient - * to read in bursts than synchronizing access for each word. - */ - for (i = 0; i < words; i += IXGBE_EEPROM_RD_BUFFER_MAX_COUNT) { - count = (words - i) / IXGBE_EEPROM_RD_BUFFER_MAX_COUNT > 0 ? - IXGBE_EEPROM_RD_BUFFER_MAX_COUNT : (words - i); - - status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset + i, - count, &data[i]); - - if (status != IXGBE_SUCCESS) - break; - } - -out: - return status; -} - -/** - * ixgbe_read_eeprom_buffer_bit_bang - Read EEPROM using bit-bang - * @hw: pointer to hardware structure - * @offset: offset within the EEPROM to be read - * @words: number of word(s) - * @data: read 16 bit word(s) from EEPROM - * - * Reads 16 bit word(s) from EEPROM through bit-bang method - **/ -STATIC s32 ixgbe_read_eeprom_buffer_bit_bang(struct ixgbe_hw *hw, u16 offset, - u16 words, u16 *data) -{ - s32 status; - u16 word_in; - u8 read_opcode = IXGBE_EEPROM_READ_OPCODE_SPI; - u16 i; - - DEBUGFUNC("ixgbe_read_eeprom_buffer_bit_bang"); - - /* Prepare the EEPROM for reading */ - status = ixgbe_acquire_eeprom(hw); - - if (status == IXGBE_SUCCESS) { - if (ixgbe_ready_eeprom(hw) != IXGBE_SUCCESS) { - ixgbe_release_eeprom(hw); - status = IXGBE_ERR_EEPROM; - } - } - - if (status == IXGBE_SUCCESS) { - for (i = 0; i < words; i++) { - ixgbe_standby_eeprom(hw); - /* - * Some SPI eeproms use the 8th address bit embedded - * in the opcode - */ - if ((hw->eeprom.address_bits == 8) && - ((offset + i) >= 128)) - read_opcode |= IXGBE_EEPROM_A8_OPCODE_SPI; - - /* Send the READ command (opcode + addr) */ - ixgbe_shift_out_eeprom_bits(hw, read_opcode, - IXGBE_EEPROM_OPCODE_BITS); - ixgbe_shift_out_eeprom_bits(hw, (u16)((offset + i) * 2), - hw->eeprom.address_bits); - - /* Read the data. */ - word_in = ixgbe_shift_in_eeprom_bits(hw, 16); - data[i] = (word_in >> 8) | (word_in << 8); - } - - /* End this read operation */ - ixgbe_release_eeprom(hw); - } - - return status; -} - -/** - * ixgbe_read_eeprom_bit_bang_generic - Read EEPROM word using bit-bang - * @hw: pointer to hardware structure - * @offset: offset within the EEPROM to be read - * @data: read 16 bit value from EEPROM - * - * Reads 16 bit value from EEPROM through bit-bang method - **/ -s32 ixgbe_read_eeprom_bit_bang_generic(struct ixgbe_hw *hw, u16 offset, - u16 *data) -{ - s32 status; - - DEBUGFUNC("ixgbe_read_eeprom_bit_bang_generic"); - - hw->eeprom.ops.init_params(hw); - - if (offset >= hw->eeprom.word_size) { - status = IXGBE_ERR_EEPROM; - goto out; - } - - status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data); - -out: - return status; -} - -/** - * ixgbe_read_eerd_buffer_generic - Read EEPROM word(s) using EERD - * @hw: pointer to hardware structure - * @offset: offset of word in the EEPROM to read - * @words: number of word(s) - * @data: 16 bit word(s) from the EEPROM - * - * Reads a 16 bit word(s) from the EEPROM using the EERD register. - **/ -s32 ixgbe_read_eerd_buffer_generic(struct ixgbe_hw *hw, u16 offset, - u16 words, u16 *data) -{ - u32 eerd; - s32 status = IXGBE_SUCCESS; - u32 i; - - DEBUGFUNC("ixgbe_read_eerd_buffer_generic"); - - hw->eeprom.ops.init_params(hw); - - if (words == 0) { - status = IXGBE_ERR_INVALID_ARGUMENT; - ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM words"); - goto out; - } - - if (offset >= hw->eeprom.word_size) { - status = IXGBE_ERR_EEPROM; - ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM offset"); - goto out; - } - - for (i = 0; i < words; i++) { - eerd = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) | - IXGBE_EEPROM_RW_REG_START; - - IXGBE_WRITE_REG(hw, IXGBE_EERD, eerd); - status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_READ); - - if (status == IXGBE_SUCCESS) { - data[i] = (IXGBE_READ_REG(hw, IXGBE_EERD) >> - IXGBE_EEPROM_RW_REG_DATA); - } else { - DEBUGOUT("Eeprom read timed out\n"); - goto out; - } - } -out: - return status; -} - -/** - * ixgbe_detect_eeprom_page_size_generic - Detect EEPROM page size - * @hw: pointer to hardware structure - * @offset: offset within the EEPROM to be used as a scratch pad - * - * Discover EEPROM page size by writing marching data at given offset. - * This function is called only when we are writing a new large buffer - * at given offset so the data would be overwritten anyway. - **/ -STATIC s32 ixgbe_detect_eeprom_page_size_generic(struct ixgbe_hw *hw, - u16 offset) -{ - u16 data[IXGBE_EEPROM_PAGE_SIZE_MAX]; - s32 status = IXGBE_SUCCESS; - u16 i; - - DEBUGFUNC("ixgbe_detect_eeprom_page_size_generic"); - - for (i = 0; i < IXGBE_EEPROM_PAGE_SIZE_MAX; i++) - data[i] = i; - - hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX; - status = ixgbe_write_eeprom_buffer_bit_bang(hw, offset, - IXGBE_EEPROM_PAGE_SIZE_MAX, data); - hw->eeprom.word_page_size = 0; - if (status != IXGBE_SUCCESS) - goto out; - - status = ixgbe_read_eeprom_buffer_bit_bang(hw, offset, 1, data); - if (status != IXGBE_SUCCESS) - goto out; - - /* - * When writing in burst more than the actual page size - * EEPROM address wraps around current page. - */ - hw->eeprom.word_page_size = IXGBE_EEPROM_PAGE_SIZE_MAX - data[0]; - - DEBUGOUT1("Detected EEPROM page size = %d words.", - hw->eeprom.word_page_size); -out: - return status; -} - -/** - * ixgbe_read_eerd_generic - Read EEPROM word using EERD - * @hw: pointer to hardware structure - * @offset: offset of word in the EEPROM to read - * @data: word read from the EEPROM - * - * Reads a 16 bit word from the EEPROM using the EERD register. - **/ -s32 ixgbe_read_eerd_generic(struct ixgbe_hw *hw, u16 offset, u16 *data) -{ - return ixgbe_read_eerd_buffer_generic(hw, offset, 1, data); -} - -/** - * ixgbe_write_eewr_buffer_generic - Write EEPROM word(s) using EEWR - * @hw: pointer to hardware structure - * @offset: offset of word in the EEPROM to write - * @words: number of word(s) - * @data: word(s) write to the EEPROM - * - * Write a 16 bit word(s) to the EEPROM using the EEWR register. - **/ -s32 ixgbe_write_eewr_buffer_generic(struct ixgbe_hw *hw, u16 offset, - u16 words, u16 *data) -{ - u32 eewr; - s32 status = IXGBE_SUCCESS; - u16 i; - - DEBUGFUNC("ixgbe_write_eewr_generic"); - - hw->eeprom.ops.init_params(hw); - - if (words == 0) { - status = IXGBE_ERR_INVALID_ARGUMENT; - ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM words"); - goto out; - } - - if (offset >= hw->eeprom.word_size) { - status = IXGBE_ERR_EEPROM; - ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, "Invalid EEPROM offset"); - goto out; - } - - for (i = 0; i < words; i++) { - eewr = ((offset + i) << IXGBE_EEPROM_RW_ADDR_SHIFT) | - (data[i] << IXGBE_EEPROM_RW_REG_DATA) | - IXGBE_EEPROM_RW_REG_START; - - status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE); - if (status != IXGBE_SUCCESS) { - DEBUGOUT("Eeprom write EEWR timed out\n"); - goto out; - } - - IXGBE_WRITE_REG(hw, IXGBE_EEWR, eewr); - - status = ixgbe_poll_eerd_eewr_done(hw, IXGBE_NVM_POLL_WRITE); - if (status != IXGBE_SUCCESS) { - DEBUGOUT("Eeprom write EEWR timed out\n"); - goto out; - } - } - -out: - return status; -} - -/** - * ixgbe_write_eewr_generic - Write EEPROM word using EEWR - * @hw: pointer to hardware structure - * @offset: offset of word in the EEPROM to write - * @data: word write to the EEPROM - * - * Write a 16 bit word to the EEPROM using the EEWR register. - **/ -s32 ixgbe_write_eewr_generic(struct ixgbe_hw *hw, u16 offset, u16 data) -{ - return ixgbe_write_eewr_buffer_generic(hw, offset, 1, &data); -} - -/** - * ixgbe_poll_eerd_eewr_done - Poll EERD read or EEWR write status - * @hw: pointer to hardware structure - * @ee_reg: EEPROM flag for polling - * - * Polls the status bit (bit 1) of the EERD or EEWR to determine when the - * read or write is done respectively. - **/ -s32 ixgbe_poll_eerd_eewr_done(struct ixgbe_hw *hw, u32 ee_reg) -{ - u32 i; - u32 reg; - s32 status = IXGBE_ERR_EEPROM; - - DEBUGFUNC("ixgbe_poll_eerd_eewr_done"); - - for (i = 0; i < IXGBE_EERD_EEWR_ATTEMPTS; i++) { - if (ee_reg == IXGBE_NVM_POLL_READ) - reg = IXGBE_READ_REG(hw, IXGBE_EERD); - else - reg = IXGBE_READ_REG(hw, IXGBE_EEWR); - - if (reg & IXGBE_EEPROM_RW_REG_DONE) { - status = IXGBE_SUCCESS; - break; - } - usec_delay(5); - } - - if (i == IXGBE_EERD_EEWR_ATTEMPTS) - ERROR_REPORT1(IXGBE_ERROR_POLLING, - "EEPROM read/write done polling timed out"); - - return status; -} - -/** - * ixgbe_acquire_eeprom - Acquire EEPROM using bit-bang - * @hw: pointer to hardware structure - * - * Prepares EEPROM for access using bit-bang method. This function should - * be called before issuing a command to the EEPROM. - **/ -STATIC s32 ixgbe_acquire_eeprom(struct ixgbe_hw *hw) -{ - s32 status = IXGBE_SUCCESS; - u32 eec; - u32 i; - - DEBUGFUNC("ixgbe_acquire_eeprom"); - - if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_EEP_SM) - != IXGBE_SUCCESS) - status = IXGBE_ERR_SWFW_SYNC; - - if (status == IXGBE_SUCCESS) { - eec = IXGBE_READ_REG(hw, IXGBE_EEC); - - /* Request EEPROM Access */ - eec |= IXGBE_EEC_REQ; - IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); - - for (i = 0; i < IXGBE_EEPROM_GRANT_ATTEMPTS; i++) { - eec = IXGBE_READ_REG(hw, IXGBE_EEC); - if (eec & IXGBE_EEC_GNT) - break; - usec_delay(5); - } - - /* Release if grant not acquired */ - if (!(eec & IXGBE_EEC_GNT)) { - eec &= ~IXGBE_EEC_REQ; - IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); - DEBUGOUT("Could not acquire EEPROM grant\n"); - - hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); - status = IXGBE_ERR_EEPROM; - } - - /* Setup EEPROM for Read/Write */ - if (status == IXGBE_SUCCESS) { - /* Clear CS and SK */ - eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK); - IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); - IXGBE_WRITE_FLUSH(hw); - usec_delay(1); - } - } - return status; -} - -/** - * ixgbe_get_eeprom_semaphore - Get hardware semaphore - * @hw: pointer to hardware structure - * - * Sets the hardware semaphores so EEPROM access can occur for bit-bang method - **/ -STATIC s32 ixgbe_get_eeprom_semaphore(struct ixgbe_hw *hw) -{ - s32 status = IXGBE_ERR_EEPROM; - u32 timeout = 2000; - u32 i; - u32 swsm; - - DEBUGFUNC("ixgbe_get_eeprom_semaphore"); - - - /* Get SMBI software semaphore between device drivers first */ - for (i = 0; i < timeout; i++) { - /* - * If the SMBI bit is 0 when we read it, then the bit will be - * set and we have the semaphore - */ - swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); - if (!(swsm & IXGBE_SWSM_SMBI)) { - status = IXGBE_SUCCESS; - break; - } - usec_delay(50); - } - - if (i == timeout) { - DEBUGOUT("Driver can't access the Eeprom - SMBI Semaphore " - "not granted.\n"); - /* - * this release is particularly important because our attempts - * above to get the semaphore may have succeeded, and if there - * was a timeout, we should unconditionally clear the semaphore - * bits to free the driver to make progress - */ - ixgbe_release_eeprom_semaphore(hw); - - usec_delay(50); - /* - * one last try - * If the SMBI bit is 0 when we read it, then the bit will be - * set and we have the semaphore - */ - swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); - if (!(swsm & IXGBE_SWSM_SMBI)) - status = IXGBE_SUCCESS; - } - - /* Now get the semaphore between SW/FW through the SWESMBI bit */ - if (status == IXGBE_SUCCESS) { - for (i = 0; i < timeout; i++) { - swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); - - /* Set the SW EEPROM semaphore bit to request access */ - swsm |= IXGBE_SWSM_SWESMBI; - IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm); - - /* - * If we set the bit successfully then we got the - * semaphore. - */ - swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); - if (swsm & IXGBE_SWSM_SWESMBI) - break; - - usec_delay(50); - } - - /* - * Release semaphores and return error if SW EEPROM semaphore - * was not granted because we don't have access to the EEPROM - */ - if (i >= timeout) { - ERROR_REPORT1(IXGBE_ERROR_POLLING, - "SWESMBI Software EEPROM semaphore not granted.\n"); - ixgbe_release_eeprom_semaphore(hw); - status = IXGBE_ERR_EEPROM; - } - } else { - ERROR_REPORT1(IXGBE_ERROR_POLLING, - "Software semaphore SMBI between device drivers " - "not granted.\n"); - } - - return status; -} - -/** - * ixgbe_release_eeprom_semaphore - Release hardware semaphore - * @hw: pointer to hardware structure - * - * This function clears hardware semaphore bits. - **/ -STATIC void ixgbe_release_eeprom_semaphore(struct ixgbe_hw *hw) -{ - u32 swsm; - - DEBUGFUNC("ixgbe_release_eeprom_semaphore"); - - swsm = IXGBE_READ_REG(hw, IXGBE_SWSM); - - /* Release both semaphores by writing 0 to the bits SWESMBI and SMBI */ - swsm &= ~(IXGBE_SWSM_SWESMBI | IXGBE_SWSM_SMBI); - IXGBE_WRITE_REG(hw, IXGBE_SWSM, swsm); - IXGBE_WRITE_FLUSH(hw); -} - -/** - * ixgbe_ready_eeprom - Polls for EEPROM ready - * @hw: pointer to hardware structure - **/ -STATIC s32 ixgbe_ready_eeprom(struct ixgbe_hw *hw) -{ - s32 status = IXGBE_SUCCESS; - u16 i; - u8 spi_stat_reg; - - DEBUGFUNC("ixgbe_ready_eeprom"); - - /* - * Read "Status Register" repeatedly until the LSB is cleared. The - * EEPROM will signal that the command has been completed by clearing - * bit 0 of the internal status register. If it's not cleared within - * 5 milliseconds, then error out. - */ - for (i = 0; i < IXGBE_EEPROM_MAX_RETRY_SPI; i += 5) { - ixgbe_shift_out_eeprom_bits(hw, IXGBE_EEPROM_RDSR_OPCODE_SPI, - IXGBE_EEPROM_OPCODE_BITS); - spi_stat_reg = (u8)ixgbe_shift_in_eeprom_bits(hw, 8); - if (!(spi_stat_reg & IXGBE_EEPROM_STATUS_RDY_SPI)) - break; - - usec_delay(5); - ixgbe_standby_eeprom(hw); - }; - - /* - * On some parts, SPI write time could vary from 0-20mSec on 3.3V - * devices (and only 0-5mSec on 5V devices) - */ - if (i >= IXGBE_EEPROM_MAX_RETRY_SPI) { - DEBUGOUT("SPI EEPROM Status error\n"); - status = IXGBE_ERR_EEPROM; - } - - return status; -} - -/** - * ixgbe_standby_eeprom - Returns EEPROM to a "standby" state - * @hw: pointer to hardware structure - **/ -STATIC void ixgbe_standby_eeprom(struct ixgbe_hw *hw) -{ - u32 eec; - - DEBUGFUNC("ixgbe_standby_eeprom"); - - eec = IXGBE_READ_REG(hw, IXGBE_EEC); - - /* Toggle CS to flush commands */ - eec |= IXGBE_EEC_CS; - IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); - IXGBE_WRITE_FLUSH(hw); - usec_delay(1); - eec &= ~IXGBE_EEC_CS; - IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); - IXGBE_WRITE_FLUSH(hw); - usec_delay(1); -} - -/** - * ixgbe_shift_out_eeprom_bits - Shift data bits out to the EEPROM. - * @hw: pointer to hardware structure - * @data: data to send to the EEPROM - * @count: number of bits to shift out - **/ -STATIC void ixgbe_shift_out_eeprom_bits(struct ixgbe_hw *hw, u16 data, - u16 count) -{ - u32 eec; - u32 mask; - u32 i; - - DEBUGFUNC("ixgbe_shift_out_eeprom_bits"); - - eec = IXGBE_READ_REG(hw, IXGBE_EEC); - - /* - * Mask is used to shift "count" bits of "data" out to the EEPROM - * one bit at a time. Determine the starting bit based on count - */ - mask = 0x01 << (count - 1); - - for (i = 0; i < count; i++) { - /* - * A "1" is shifted out to the EEPROM by setting bit "DI" to a - * "1", and then raising and then lowering the clock (the SK - * bit controls the clock input to the EEPROM). A "0" is - * shifted out to the EEPROM by setting "DI" to "0" and then - * raising and then lowering the clock. - */ - if (data & mask) - eec |= IXGBE_EEC_DI; - else - eec &= ~IXGBE_EEC_DI; - - IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); - IXGBE_WRITE_FLUSH(hw); - - usec_delay(1); - - ixgbe_raise_eeprom_clk(hw, &eec); - ixgbe_lower_eeprom_clk(hw, &eec); - - /* - * Shift mask to signify next bit of data to shift in to the - * EEPROM - */ - mask = mask >> 1; - }; - - /* We leave the "DI" bit set to "0" when we leave this routine. */ - eec &= ~IXGBE_EEC_DI; - IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); - IXGBE_WRITE_FLUSH(hw); -} - -/** - * ixgbe_shift_in_eeprom_bits - Shift data bits in from the EEPROM - * @hw: pointer to hardware structure - **/ -STATIC u16 ixgbe_shift_in_eeprom_bits(struct ixgbe_hw *hw, u16 count) -{ - u32 eec; - u32 i; - u16 data = 0; - - DEBUGFUNC("ixgbe_shift_in_eeprom_bits"); - - /* - * In order to read a register from the EEPROM, we need to shift - * 'count' bits in from the EEPROM. Bits are "shifted in" by raising - * the clock input to the EEPROM (setting the SK bit), and then reading - * the value of the "DO" bit. During this "shifting in" process the - * "DI" bit should always be clear. - */ - eec = IXGBE_READ_REG(hw, IXGBE_EEC); - - eec &= ~(IXGBE_EEC_DO | IXGBE_EEC_DI); - - for (i = 0; i < count; i++) { - data = data << 1; - ixgbe_raise_eeprom_clk(hw, &eec); - - eec = IXGBE_READ_REG(hw, IXGBE_EEC); - - eec &= ~(IXGBE_EEC_DI); - if (eec & IXGBE_EEC_DO) - data |= 1; - - ixgbe_lower_eeprom_clk(hw, &eec); - } - - return data; -} - -/** - * ixgbe_raise_eeprom_clk - Raises the EEPROM's clock input. - * @hw: pointer to hardware structure - * @eec: EEC register's current value - **/ -STATIC void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec) -{ - DEBUGFUNC("ixgbe_raise_eeprom_clk"); - - /* - * Raise the clock input to the EEPROM - * (setting the SK bit), then delay - */ - *eec = *eec | IXGBE_EEC_SK; - IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec); - IXGBE_WRITE_FLUSH(hw); - usec_delay(1); -} - -/** - * ixgbe_lower_eeprom_clk - Lowers the EEPROM's clock input. - * @hw: pointer to hardware structure - * @eecd: EECD's current value - **/ -STATIC void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec) -{ - DEBUGFUNC("ixgbe_lower_eeprom_clk"); - - /* - * Lower the clock input to the EEPROM (clearing the SK bit), then - * delay - */ - *eec = *eec & ~IXGBE_EEC_SK; - IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec); - IXGBE_WRITE_FLUSH(hw); - usec_delay(1); -} - -/** - * ixgbe_release_eeprom - Release EEPROM, release semaphores - * @hw: pointer to hardware structure - **/ -STATIC void ixgbe_release_eeprom(struct ixgbe_hw *hw) -{ - u32 eec; - - DEBUGFUNC("ixgbe_release_eeprom"); - - eec = IXGBE_READ_REG(hw, IXGBE_EEC); - - eec |= IXGBE_EEC_CS; /* Pull CS high */ - eec &= ~IXGBE_EEC_SK; /* Lower SCK */ - - IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); - IXGBE_WRITE_FLUSH(hw); - - usec_delay(1); - - /* Stop requesting EEPROM access */ - eec &= ~IXGBE_EEC_REQ; - IXGBE_WRITE_REG(hw, IXGBE_EEC, eec); - - hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_EEP_SM); - - /* Delay before attempt to obtain semaphore again to allow FW access */ - msec_delay(hw->eeprom.semaphore_delay); -} - -/** - * ixgbe_calc_eeprom_checksum_generic - Calculates and returns the checksum - * @hw: pointer to hardware structure - * - * Returns a negative error code on error, or the 16-bit checksum - **/ -s32 ixgbe_calc_eeprom_checksum_generic(struct ixgbe_hw *hw) -{ - u16 i; - u16 j; - u16 checksum = 0; - u16 length = 0; - u16 pointer = 0; - u16 word = 0; - - DEBUGFUNC("ixgbe_calc_eeprom_checksum_generic"); - - /* Include 0x0-0x3F in the checksum */ - for (i = 0; i < IXGBE_EEPROM_CHECKSUM; i++) { - if (hw->eeprom.ops.read(hw, i, &word)) { - DEBUGOUT("EEPROM read failed\n"); - return IXGBE_ERR_EEPROM; - } - checksum += word; - } - - /* Include all data from pointers except for the fw pointer */ - for (i = IXGBE_PCIE_ANALOG_PTR; i < IXGBE_FW_PTR; i++) { - if (hw->eeprom.ops.read(hw, i, &pointer)) { - DEBUGOUT("EEPROM read failed\n"); - return IXGBE_ERR_EEPROM; - } - - /* If the pointer seems invalid */ - if (pointer == 0xFFFF || pointer == 0) - continue; - - if (hw->eeprom.ops.read(hw, pointer, &length)) { - DEBUGOUT("EEPROM read failed\n"); - return IXGBE_ERR_EEPROM; - } - - if (length == 0xFFFF || length == 0) - continue; - - for (j = pointer + 1; j <= pointer + length; j++) { - if (hw->eeprom.ops.read(hw, j, &word)) { - DEBUGOUT("EEPROM read failed\n"); - return IXGBE_ERR_EEPROM; - } - checksum += word; - } - } - - checksum = (u16)IXGBE_EEPROM_SUM - checksum; - - return (s32)checksum; -} - -/** - * ixgbe_validate_eeprom_checksum_generic - Validate EEPROM checksum - * @hw: pointer to hardware structure - * @checksum_val: calculated checksum - * - * Performs checksum calculation and validates the EEPROM checksum. If the - * caller does not need checksum_val, the value can be NULL. - **/ -s32 ixgbe_validate_eeprom_checksum_generic(struct ixgbe_hw *hw, - u16 *checksum_val) -{ - s32 status; - u16 checksum; - u16 read_checksum = 0; - - DEBUGFUNC("ixgbe_validate_eeprom_checksum_generic"); - - /* Read the first word from the EEPROM. If this times out or fails, do - * not continue or we could be in for a very long wait while every - * EEPROM read fails - */ - status = hw->eeprom.ops.read(hw, 0, &checksum); - if (status) { - DEBUGOUT("EEPROM read failed\n"); - return status; - } - - status = hw->eeprom.ops.calc_checksum(hw); - if (status < 0) - return status; - - checksum = (u16)(status & 0xffff); - - status = hw->eeprom.ops.read(hw, IXGBE_EEPROM_CHECKSUM, &read_checksum); - if (status) { - DEBUGOUT("EEPROM read failed\n"); - return status; - } - - /* Verify read checksum from EEPROM is the same as - * calculated checksum - */ - if (read_checksum != checksum) - status = IXGBE_ERR_EEPROM_CHECKSUM; - - /* If the user cares, return the calculated checksum */ - if (checksum_val) - *checksum_val = checksum; - - return status; -} - -/** - * ixgbe_update_eeprom_checksum_generic - Updates the EEPROM checksum - * @hw: pointer to hardware structure - **/ -s32 ixgbe_update_eeprom_checksum_generic(struct ixgbe_hw *hw) -{ - s32 status; - u16 checksum; - - DEBUGFUNC("ixgbe_update_eeprom_checksum_generic"); - - /* Read the first word from the EEPROM. If this times out or fails, do - * not continue or we could be in for a very long wait while every - * EEPROM read fails - */ - status = hw->eeprom.ops.read(hw, 0, &checksum); - if (status) { - DEBUGOUT("EEPROM read failed\n"); - return status; - } - - status = hw->eeprom.ops.calc_checksum(hw); - if (status < 0) - return status; - - checksum = (u16)(status & 0xffff); - - status = hw->eeprom.ops.write(hw, IXGBE_EEPROM_CHECKSUM, checksum); - - return status; -} - -/** - * ixgbe_validate_mac_addr - Validate MAC address - * @mac_addr: pointer to MAC address. - * - * Tests a MAC address to ensure it is a valid Individual Address - **/ -s32 ixgbe_validate_mac_addr(u8 *mac_addr) -{ - s32 status = IXGBE_SUCCESS; - - DEBUGFUNC("ixgbe_validate_mac_addr"); - - /* Make sure it is not a multicast address */ - if (IXGBE_IS_MULTICAST(mac_addr)) { - DEBUGOUT("MAC address is multicast\n"); - status = IXGBE_ERR_INVALID_MAC_ADDR; - /* Not a broadcast address */ - } else if (IXGBE_IS_BROADCAST(mac_addr)) { - DEBUGOUT("MAC address is broadcast\n"); - status = IXGBE_ERR_INVALID_MAC_ADDR; - /* Reject the zero address */ - } else if (mac_addr[0] == 0 && mac_addr[1] == 0 && mac_addr[2] == 0 && - mac_addr[3] == 0 && mac_addr[4] == 0 && mac_addr[5] == 0) { - DEBUGOUT("MAC address is all zeros\n"); - status = IXGBE_ERR_INVALID_MAC_ADDR; - } - return status; -} - -/** - * ixgbe_set_rar_generic - Set Rx address register - * @hw: pointer to hardware structure - * @index: Receive address register to write - * @addr: Address to put into receive address register - * @vmdq: VMDq "set" or "pool" index - * @enable_addr: set flag that address is active - * - * Puts an ethernet address into a receive address register. - **/ -s32 ixgbe_set_rar_generic(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vmdq, - u32 enable_addr) -{ - u32 rar_low, rar_high; - u32 rar_entries = hw->mac.num_rar_entries; - - DEBUGFUNC("ixgbe_set_rar_generic"); - - /* Make sure we are using a valid rar index range */ - if (index >= rar_entries) { - ERROR_REPORT2(IXGBE_ERROR_ARGUMENT, - "RAR index %d is out of range.\n", index); - return IXGBE_ERR_INVALID_ARGUMENT; - } - - /* setup VMDq pool selection before this RAR gets enabled */ - hw->mac.ops.set_vmdq(hw, index, vmdq); - - /* - * HW expects these in little endian so we reverse the byte - * order from network order (big endian) to little endian - */ - rar_low = ((u32)addr[0] | - ((u32)addr[1] << 8) | - ((u32)addr[2] << 16) | - ((u32)addr[3] << 24)); - /* - * Some parts put the VMDq setting in the extra RAH bits, - * so save everything except the lower 16 bits that hold part - * of the address and the address valid bit. - */ - rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index)); - rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV); - rar_high |= ((u32)addr[4] | ((u32)addr[5] << 8)); - - if (enable_addr != 0) - rar_high |= IXGBE_RAH_AV; - - IXGBE_WRITE_REG(hw, IXGBE_RAL(index), rar_low); - IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_clear_rar_generic - Remove Rx address register - * @hw: pointer to hardware structure - * @index: Receive address register to write - * - * Clears an ethernet address from a receive address register. - **/ -s32 ixgbe_clear_rar_generic(struct ixgbe_hw *hw, u32 index) -{ - u32 rar_high; - u32 rar_entries = hw->mac.num_rar_entries; - - DEBUGFUNC("ixgbe_clear_rar_generic"); - - /* Make sure we are using a valid rar index range */ - if (index >= rar_entries) { - ERROR_REPORT2(IXGBE_ERROR_ARGUMENT, - "RAR index %d is out of range.\n", index); - return IXGBE_ERR_INVALID_ARGUMENT; - } - - /* - * Some parts put the VMDq setting in the extra RAH bits, - * so save everything except the lower 16 bits that hold part - * of the address and the address valid bit. - */ - rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(index)); - rar_high &= ~(0x0000FFFF | IXGBE_RAH_AV); - - IXGBE_WRITE_REG(hw, IXGBE_RAL(index), 0); - IXGBE_WRITE_REG(hw, IXGBE_RAH(index), rar_high); - - /* clear VMDq pool/queue selection for this RAR */ - hw->mac.ops.clear_vmdq(hw, index, IXGBE_CLEAR_VMDQ_ALL); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_init_rx_addrs_generic - Initializes receive address filters. - * @hw: pointer to hardware structure - * - * Places the MAC address in receive address register 0 and clears the rest - * of the receive address registers. Clears the multicast table. Assumes - * the receiver is in reset when the routine is called. - **/ -s32 ixgbe_init_rx_addrs_generic(struct ixgbe_hw *hw) -{ - u32 i; - u32 rar_entries = hw->mac.num_rar_entries; - - DEBUGFUNC("ixgbe_init_rx_addrs_generic"); - - /* - * If the current mac address is valid, assume it is a software override - * to the permanent address. - * Otherwise, use the permanent address from the eeprom. - */ - if (ixgbe_validate_mac_addr(hw->mac.addr) == - IXGBE_ERR_INVALID_MAC_ADDR) { - /* Get the MAC address from the RAR0 for later reference */ - hw->mac.ops.get_mac_addr(hw, hw->mac.addr); - - DEBUGOUT3(" Keeping Current RAR0 Addr =%.2X %.2X %.2X ", - hw->mac.addr[0], hw->mac.addr[1], - hw->mac.addr[2]); - DEBUGOUT3("%.2X %.2X %.2X\n", hw->mac.addr[3], - hw->mac.addr[4], hw->mac.addr[5]); - } else { - /* Setup the receive address. */ - DEBUGOUT("Overriding MAC Address in RAR[0]\n"); - DEBUGOUT3(" New MAC Addr =%.2X %.2X %.2X ", - hw->mac.addr[0], hw->mac.addr[1], - hw->mac.addr[2]); - DEBUGOUT3("%.2X %.2X %.2X\n", hw->mac.addr[3], - hw->mac.addr[4], hw->mac.addr[5]); - - hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV); - - /* clear VMDq pool/queue selection for RAR 0 */ - hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL); - } - hw->addr_ctrl.overflow_promisc = 0; - - hw->addr_ctrl.rar_used_count = 1; - - /* Zero out the other receive addresses. */ - DEBUGOUT1("Clearing RAR[1-%d]\n", rar_entries - 1); - for (i = 1; i < rar_entries; i++) { - IXGBE_WRITE_REG(hw, IXGBE_RAL(i), 0); - IXGBE_WRITE_REG(hw, IXGBE_RAH(i), 0); - } - - /* Clear the MTA */ - hw->addr_ctrl.mta_in_use = 0; - IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type); - - DEBUGOUT(" Clearing MTA\n"); - for (i = 0; i < hw->mac.mcft_size; i++) - IXGBE_WRITE_REG(hw, IXGBE_MTA(i), 0); - - ixgbe_init_uta_tables(hw); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_add_uc_addr - Adds a secondary unicast address. - * @hw: pointer to hardware structure - * @addr: new address - * - * Adds it to unused receive address register or goes into promiscuous mode. - **/ -void ixgbe_add_uc_addr(struct ixgbe_hw *hw, u8 *addr, u32 vmdq) -{ - u32 rar_entries = hw->mac.num_rar_entries; - u32 rar; - - DEBUGFUNC("ixgbe_add_uc_addr"); - - DEBUGOUT6(" UC Addr = %.2X %.2X %.2X %.2X %.2X %.2X\n", - addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); - - /* - * Place this address in the RAR if there is room, - * else put the controller into promiscuous mode - */ - if (hw->addr_ctrl.rar_used_count < rar_entries) { - rar = hw->addr_ctrl.rar_used_count; - hw->mac.ops.set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV); - DEBUGOUT1("Added a secondary address to RAR[%d]\n", rar); - hw->addr_ctrl.rar_used_count++; - } else { - hw->addr_ctrl.overflow_promisc++; - } - - DEBUGOUT("ixgbe_add_uc_addr Complete\n"); -} - -/** - * ixgbe_update_uc_addr_list_generic - Updates MAC list of secondary addresses - * @hw: pointer to hardware structure - * @addr_list: the list of new addresses - * @addr_count: number of addresses - * @next: iterator function to walk the address list - * - * The given list replaces any existing list. Clears the secondary addrs from - * receive address registers. Uses unused receive address registers for the - * first secondary addresses, and falls back to promiscuous mode as needed. - * - * Drivers using secondary unicast addresses must set user_set_promisc when - * manually putting the device into promiscuous mode. - **/ -s32 ixgbe_update_uc_addr_list_generic(struct ixgbe_hw *hw, u8 *addr_list, - u32 addr_count, ixgbe_mc_addr_itr next) -{ - u8 *addr; - u32 i; - u32 old_promisc_setting = hw->addr_ctrl.overflow_promisc; - u32 uc_addr_in_use; - u32 fctrl; - u32 vmdq; - - DEBUGFUNC("ixgbe_update_uc_addr_list_generic"); - - /* - * Clear accounting of old secondary address list, - * don't count RAR[0] - */ - uc_addr_in_use = hw->addr_ctrl.rar_used_count - 1; - hw->addr_ctrl.rar_used_count -= uc_addr_in_use; - hw->addr_ctrl.overflow_promisc = 0; - - /* Zero out the other receive addresses */ - DEBUGOUT1("Clearing RAR[1-%d]\n", uc_addr_in_use+1); - for (i = 0; i < uc_addr_in_use; i++) { - IXGBE_WRITE_REG(hw, IXGBE_RAL(1+i), 0); - IXGBE_WRITE_REG(hw, IXGBE_RAH(1+i), 0); - } - - /* Add the new addresses */ - for (i = 0; i < addr_count; i++) { - DEBUGOUT(" Adding the secondary addresses:\n"); - addr = next(hw, &addr_list, &vmdq); - ixgbe_add_uc_addr(hw, addr, vmdq); - } - - if (hw->addr_ctrl.overflow_promisc) { - /* enable promisc if not already in overflow or set by user */ - if (!old_promisc_setting && !hw->addr_ctrl.user_set_promisc) { - DEBUGOUT(" Entering address overflow promisc mode\n"); - fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); - fctrl |= IXGBE_FCTRL_UPE; - IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); - } - } else { - /* only disable if set by overflow, not by user */ - if (old_promisc_setting && !hw->addr_ctrl.user_set_promisc) { - DEBUGOUT(" Leaving address overflow promisc mode\n"); - fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL); - fctrl &= ~IXGBE_FCTRL_UPE; - IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl); - } - } - - DEBUGOUT("ixgbe_update_uc_addr_list_generic Complete\n"); - return IXGBE_SUCCESS; -} - -/** - * ixgbe_mta_vector - Determines bit-vector in multicast table to set - * @hw: pointer to hardware structure - * @mc_addr: the multicast address - * - * Extracts the 12 bits, from a multicast address, to determine which - * bit-vector to set in the multicast table. The hardware uses 12 bits, from - * incoming rx multicast addresses, to determine the bit-vector to check in - * the MTA. Which of the 4 combination, of 12-bits, the hardware uses is set - * by the MO field of the MCSTCTRL. The MO field is set during initialization - * to mc_filter_type. - **/ -STATIC s32 ixgbe_mta_vector(struct ixgbe_hw *hw, u8 *mc_addr) -{ - u32 vector = 0; - - DEBUGFUNC("ixgbe_mta_vector"); - - switch (hw->mac.mc_filter_type) { - case 0: /* use bits [47:36] of the address */ - vector = ((mc_addr[4] >> 4) | (((u16)mc_addr[5]) << 4)); - break; - case 1: /* use bits [46:35] of the address */ - vector = ((mc_addr[4] >> 3) | (((u16)mc_addr[5]) << 5)); - break; - case 2: /* use bits [45:34] of the address */ - vector = ((mc_addr[4] >> 2) | (((u16)mc_addr[5]) << 6)); - break; - case 3: /* use bits [43:32] of the address */ - vector = ((mc_addr[4]) | (((u16)mc_addr[5]) << 8)); - break; - default: /* Invalid mc_filter_type */ - DEBUGOUT("MC filter type param set incorrectly\n"); - ASSERT(0); - break; - } - - /* vector can only be 12-bits or boundary will be exceeded */ - vector &= 0xFFF; - return vector; -} - -/** - * ixgbe_set_mta - Set bit-vector in multicast table - * @hw: pointer to hardware structure - * @hash_value: Multicast address hash value - * - * Sets the bit-vector in the multicast table. - **/ -void ixgbe_set_mta(struct ixgbe_hw *hw, u8 *mc_addr) -{ - u32 vector; - u32 vector_bit; - u32 vector_reg; - - DEBUGFUNC("ixgbe_set_mta"); - - hw->addr_ctrl.mta_in_use++; - - vector = ixgbe_mta_vector(hw, mc_addr); - DEBUGOUT1(" bit-vector = 0x%03X\n", vector); - - /* - * The MTA is a register array of 128 32-bit registers. It is treated - * like an array of 4096 bits. We want to set bit - * BitArray[vector_value]. So we figure out what register the bit is - * in, read it, OR in the new bit, then write back the new value. The - * register is determined by the upper 7 bits of the vector value and - * the bit within that register are determined by the lower 5 bits of - * the value. - */ - vector_reg = (vector >> 5) & 0x7F; - vector_bit = vector & 0x1F; - hw->mac.mta_shadow[vector_reg] |= (1 << vector_bit); -} - -/** - * ixgbe_update_mc_addr_list_generic - Updates MAC list of multicast addresses - * @hw: pointer to hardware structure - * @mc_addr_list: the list of new multicast addresses - * @mc_addr_count: number of addresses - * @next: iterator function to walk the multicast address list - * @clear: flag, when set clears the table beforehand - * - * When the clear flag is set, the given list replaces any existing list. - * Hashes the given addresses into the multicast table. - **/ -s32 ixgbe_update_mc_addr_list_generic(struct ixgbe_hw *hw, u8 *mc_addr_list, - u32 mc_addr_count, ixgbe_mc_addr_itr next, - bool clear) -{ - u32 i; - u32 vmdq; - - DEBUGFUNC("ixgbe_update_mc_addr_list_generic"); - - /* - * Set the new number of MC addresses that we are being requested to - * use. - */ - hw->addr_ctrl.num_mc_addrs = mc_addr_count; - hw->addr_ctrl.mta_in_use = 0; - - /* Clear mta_shadow */ - if (clear) { - DEBUGOUT(" Clearing MTA\n"); - memset(&hw->mac.mta_shadow, 0, sizeof(hw->mac.mta_shadow)); - } - - /* Update mta_shadow */ - for (i = 0; i < mc_addr_count; i++) { - DEBUGOUT(" Adding the multicast addresses:\n"); - ixgbe_set_mta(hw, next(hw, &mc_addr_list, &vmdq)); - } - - /* Enable mta */ - for (i = 0; i < hw->mac.mcft_size; i++) - IXGBE_WRITE_REG_ARRAY(hw, IXGBE_MTA(0), i, - hw->mac.mta_shadow[i]); - - if (hw->addr_ctrl.mta_in_use > 0) - IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, - IXGBE_MCSTCTRL_MFE | hw->mac.mc_filter_type); - - DEBUGOUT("ixgbe_update_mc_addr_list_generic Complete\n"); - return IXGBE_SUCCESS; -} - -/** - * ixgbe_enable_mc_generic - Enable multicast address in RAR - * @hw: pointer to hardware structure - * - * Enables multicast address in RAR and the use of the multicast hash table. - **/ -s32 ixgbe_enable_mc_generic(struct ixgbe_hw *hw) -{ - struct ixgbe_addr_filter_info *a = &hw->addr_ctrl; - - DEBUGFUNC("ixgbe_enable_mc_generic"); - - if (a->mta_in_use > 0) - IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, IXGBE_MCSTCTRL_MFE | - hw->mac.mc_filter_type); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_disable_mc_generic - Disable multicast address in RAR - * @hw: pointer to hardware structure - * - * Disables multicast address in RAR and the use of the multicast hash table. - **/ -s32 ixgbe_disable_mc_generic(struct ixgbe_hw *hw) -{ - struct ixgbe_addr_filter_info *a = &hw->addr_ctrl; - - DEBUGFUNC("ixgbe_disable_mc_generic"); - - if (a->mta_in_use > 0) - IXGBE_WRITE_REG(hw, IXGBE_MCSTCTRL, hw->mac.mc_filter_type); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_fc_enable_generic - Enable flow control - * @hw: pointer to hardware structure - * - * Enable flow control according to the current settings. - **/ -s32 ixgbe_fc_enable_generic(struct ixgbe_hw *hw) -{ - s32 ret_val = IXGBE_SUCCESS; - u32 mflcn_reg, fccfg_reg; - u32 reg; - u32 fcrtl, fcrth; - int i; - - DEBUGFUNC("ixgbe_fc_enable_generic"); - - /* Validate the water mark configuration */ - if (!hw->fc.pause_time) { - ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS; - goto out; - } - - /* Low water mark of zero causes XOFF floods */ - for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) { - if ((hw->fc.current_mode & ixgbe_fc_tx_pause) && - hw->fc.high_water[i]) { - if (!hw->fc.low_water[i] || - hw->fc.low_water[i] >= hw->fc.high_water[i]) { - DEBUGOUT("Invalid water mark configuration\n"); - ret_val = IXGBE_ERR_INVALID_LINK_SETTINGS; - goto out; - } - } - } - - /* Negotiate the fc mode to use */ - ixgbe_fc_autoneg(hw); - - /* Disable any previous flow control settings */ - mflcn_reg = IXGBE_READ_REG(hw, IXGBE_MFLCN); - mflcn_reg &= ~(IXGBE_MFLCN_RPFCE_MASK | IXGBE_MFLCN_RFCE); - - fccfg_reg = IXGBE_READ_REG(hw, IXGBE_FCCFG); - fccfg_reg &= ~(IXGBE_FCCFG_TFCE_802_3X | IXGBE_FCCFG_TFCE_PRIORITY); - - /* - * The possible values of fc.current_mode are: - * 0: Flow control is completely disabled - * 1: Rx flow control is enabled (we can receive pause frames, - * but not send pause frames). - * 2: Tx flow control is enabled (we can send pause frames but - * we do not support receiving pause frames). - * 3: Both Rx and Tx flow control (symmetric) are enabled. - * other: Invalid. - */ - switch (hw->fc.current_mode) { - case ixgbe_fc_none: - /* - * Flow control is disabled by software override or autoneg. - * The code below will actually disable it in the HW. - */ - break; - case ixgbe_fc_rx_pause: - /* - * Rx Flow control is enabled and Tx Flow control is - * disabled by software override. Since there really - * isn't a way to advertise that we are capable of RX - * Pause ONLY, we will advertise that we support both - * symmetric and asymmetric Rx PAUSE. Later, we will - * disable the adapter's ability to send PAUSE frames. - */ - mflcn_reg |= IXGBE_MFLCN_RFCE; - break; - case ixgbe_fc_tx_pause: - /* - * Tx Flow control is enabled, and Rx Flow control is - * disabled by software override. - */ - fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X; - break; - case ixgbe_fc_full: - /* Flow control (both Rx and Tx) is enabled by SW override. */ - mflcn_reg |= IXGBE_MFLCN_RFCE; - fccfg_reg |= IXGBE_FCCFG_TFCE_802_3X; - break; - default: - ERROR_REPORT1(IXGBE_ERROR_ARGUMENT, - "Flow control param set incorrectly\n"); - ret_val = IXGBE_ERR_CONFIG; - goto out; - break; - } - - /* Set 802.3x based flow control settings. */ - mflcn_reg |= IXGBE_MFLCN_DPF; - IXGBE_WRITE_REG(hw, IXGBE_MFLCN, mflcn_reg); - IXGBE_WRITE_REG(hw, IXGBE_FCCFG, fccfg_reg); - - - /* Set up and enable Rx high/low water mark thresholds, enable XON. */ - for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) { - if ((hw->fc.current_mode & ixgbe_fc_tx_pause) && - hw->fc.high_water[i]) { - fcrtl = (hw->fc.low_water[i] << 10) | IXGBE_FCRTL_XONE; - IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), fcrtl); - fcrth = (hw->fc.high_water[i] << 10) | IXGBE_FCRTH_FCEN; - } else { - IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0); - /* - * In order to prevent Tx hangs when the internal Tx - * switch is enabled we must set the high water mark - * to the Rx packet buffer size - 24KB. This allows - * the Tx switch to function even under heavy Rx - * workloads. - */ - fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i)) - 24576; - } - - IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), fcrth); - } - - /* Configure pause time (2 TCs per register) */ - reg = hw->fc.pause_time * 0x00010001; - for (i = 0; i < (IXGBE_DCB_MAX_TRAFFIC_CLASS / 2); i++) - IXGBE_WRITE_REG(hw, IXGBE_FCTTV(i), reg); - - /* Configure flow control refresh threshold value */ - IXGBE_WRITE_REG(hw, IXGBE_FCRTV, hw->fc.pause_time / 2); - -out: - return ret_val; -} - -/** - * ixgbe_negotiate_fc - Negotiate flow control - * @hw: pointer to hardware structure - * @adv_reg: flow control advertised settings - * @lp_reg: link partner's flow control settings - * @adv_sym: symmetric pause bit in advertisement - * @adv_asm: asymmetric pause bit in advertisement - * @lp_sym: symmetric pause bit in link partner advertisement - * @lp_asm: asymmetric pause bit in link partner advertisement - * - * Find the intersection between advertised settings and link partner's - * advertised settings - **/ -STATIC s32 ixgbe_negotiate_fc(struct ixgbe_hw *hw, u32 adv_reg, u32 lp_reg, - u32 adv_sym, u32 adv_asm, u32 lp_sym, u32 lp_asm) -{ - if ((!(adv_reg)) || (!(lp_reg))) { - ERROR_REPORT3(IXGBE_ERROR_UNSUPPORTED, - "Local or link partner's advertised flow control " - "settings are NULL. Local: %x, link partner: %x\n", - adv_reg, lp_reg); - return IXGBE_ERR_FC_NOT_NEGOTIATED; - } - - if ((adv_reg & adv_sym) && (lp_reg & lp_sym)) { - /* - * Now we need to check if the user selected Rx ONLY - * of pause frames. In this case, we had to advertise - * FULL flow control because we could not advertise RX - * ONLY. Hence, we must now check to see if we need to - * turn OFF the TRANSMISSION of PAUSE frames. - */ - if (hw->fc.requested_mode == ixgbe_fc_full) { - hw->fc.current_mode = ixgbe_fc_full; - DEBUGOUT("Flow Control = FULL.\n"); - } else { - hw->fc.current_mode = ixgbe_fc_rx_pause; - DEBUGOUT("Flow Control=RX PAUSE frames only\n"); - } - } else if (!(adv_reg & adv_sym) && (adv_reg & adv_asm) && - (lp_reg & lp_sym) && (lp_reg & lp_asm)) { - hw->fc.current_mode = ixgbe_fc_tx_pause; - DEBUGOUT("Flow Control = TX PAUSE frames only.\n"); - } else if ((adv_reg & adv_sym) && (adv_reg & adv_asm) && - !(lp_reg & lp_sym) && (lp_reg & lp_asm)) { - hw->fc.current_mode = ixgbe_fc_rx_pause; - DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); - } else { - hw->fc.current_mode = ixgbe_fc_none; - DEBUGOUT("Flow Control = NONE.\n"); - } - return IXGBE_SUCCESS; -} - -/** - * ixgbe_fc_autoneg_fiber - Enable flow control on 1 gig fiber - * @hw: pointer to hardware structure - * - * Enable flow control according on 1 gig fiber. - **/ -STATIC s32 ixgbe_fc_autoneg_fiber(struct ixgbe_hw *hw) -{ - u32 pcs_anadv_reg, pcs_lpab_reg, linkstat; - s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED; - - /* - * On multispeed fiber at 1g, bail out if - * - link is up but AN did not complete, or if - * - link is up and AN completed but timed out - */ - - linkstat = IXGBE_READ_REG(hw, IXGBE_PCS1GLSTA); - if ((!!(linkstat & IXGBE_PCS1GLSTA_AN_COMPLETE) == 0) || - (!!(linkstat & IXGBE_PCS1GLSTA_AN_TIMED_OUT) == 1)) { - DEBUGOUT("Auto-Negotiation did not complete or timed out\n"); - goto out; - } - - pcs_anadv_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA); - pcs_lpab_reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANLP); - - ret_val = ixgbe_negotiate_fc(hw, pcs_anadv_reg, - pcs_lpab_reg, IXGBE_PCS1GANA_SYM_PAUSE, - IXGBE_PCS1GANA_ASM_PAUSE, - IXGBE_PCS1GANA_SYM_PAUSE, - IXGBE_PCS1GANA_ASM_PAUSE); - -out: - return ret_val; -} - -/** - * ixgbe_fc_autoneg_backplane - Enable flow control IEEE clause 37 - * @hw: pointer to hardware structure - * - * Enable flow control according to IEEE clause 37. - **/ -STATIC s32 ixgbe_fc_autoneg_backplane(struct ixgbe_hw *hw) -{ - u32 links2, anlp1_reg, autoc_reg, links; - s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED; - - /* - * On backplane, bail out if - * - backplane autoneg was not completed, or if - * - we are 82599 and link partner is not AN enabled - */ - links = IXGBE_READ_REG(hw, IXGBE_LINKS); - if ((links & IXGBE_LINKS_KX_AN_COMP) == 0) { - DEBUGOUT("Auto-Negotiation did not complete\n"); - goto out; - } - - if (hw->mac.type == ixgbe_mac_82599EB) { - links2 = IXGBE_READ_REG(hw, IXGBE_LINKS2); - if ((links2 & IXGBE_LINKS2_AN_SUPPORTED) == 0) { - DEBUGOUT("Link partner is not AN enabled\n"); - goto out; - } - } - /* - * Read the 10g AN autoc and LP ability registers and resolve - * local flow control settings accordingly - */ - autoc_reg = IXGBE_READ_REG(hw, IXGBE_AUTOC); - anlp1_reg = IXGBE_READ_REG(hw, IXGBE_ANLP1); - - ret_val = ixgbe_negotiate_fc(hw, autoc_reg, - anlp1_reg, IXGBE_AUTOC_SYM_PAUSE, IXGBE_AUTOC_ASM_PAUSE, - IXGBE_ANLP1_SYM_PAUSE, IXGBE_ANLP1_ASM_PAUSE); - -out: - return ret_val; -} - -/** - * ixgbe_fc_autoneg_copper - Enable flow control IEEE clause 37 - * @hw: pointer to hardware structure - * - * Enable flow control according to IEEE clause 37. - **/ -STATIC s32 ixgbe_fc_autoneg_copper(struct ixgbe_hw *hw) -{ - u16 technology_ability_reg = 0; - u16 lp_technology_ability_reg = 0; - - hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_ADVT, - IXGBE_MDIO_AUTO_NEG_DEV_TYPE, - &technology_ability_reg); - hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_LP, - IXGBE_MDIO_AUTO_NEG_DEV_TYPE, - &lp_technology_ability_reg); - - return ixgbe_negotiate_fc(hw, (u32)technology_ability_reg, - (u32)lp_technology_ability_reg, - IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE, - IXGBE_TAF_SYM_PAUSE, IXGBE_TAF_ASM_PAUSE); -} - -/** - * ixgbe_fc_autoneg - Configure flow control - * @hw: pointer to hardware structure - * - * Compares our advertised flow control capabilities to those advertised by - * our link partner, and determines the proper flow control mode to use. - **/ -void ixgbe_fc_autoneg(struct ixgbe_hw *hw) -{ - s32 ret_val = IXGBE_ERR_FC_NOT_NEGOTIATED; - ixgbe_link_speed speed; - bool link_up; - - DEBUGFUNC("ixgbe_fc_autoneg"); - - /* - * AN should have completed when the cable was plugged in. - * Look for reasons to bail out. Bail out if: - * - FC autoneg is disabled, or if - * - link is not up. - */ - if (hw->fc.disable_fc_autoneg) { - ERROR_REPORT1(IXGBE_ERROR_UNSUPPORTED, - "Flow control autoneg is disabled"); - goto out; - } - - hw->mac.ops.check_link(hw, &speed, &link_up, false); - if (!link_up) { - ERROR_REPORT1(IXGBE_ERROR_SOFTWARE, "The link is down"); - goto out; - } - - switch (hw->phy.media_type) { - /* Autoneg flow control on fiber adapters */ - case ixgbe_media_type_fiber_qsfp: - case ixgbe_media_type_fiber: - if (speed == IXGBE_LINK_SPEED_1GB_FULL) - ret_val = ixgbe_fc_autoneg_fiber(hw); - break; - - /* Autoneg flow control on backplane adapters */ - case ixgbe_media_type_backplane: - ret_val = ixgbe_fc_autoneg_backplane(hw); - break; - - /* Autoneg flow control on copper adapters */ - case ixgbe_media_type_copper: - if (ixgbe_device_supports_autoneg_fc(hw)) - ret_val = ixgbe_fc_autoneg_copper(hw); - break; - - default: - break; - } - -out: - if (ret_val == IXGBE_SUCCESS) { - hw->fc.fc_was_autonegged = true; - } else { - hw->fc.fc_was_autonegged = false; - hw->fc.current_mode = hw->fc.requested_mode; - } -} - -/* - * ixgbe_pcie_timeout_poll - Return number of times to poll for completion - * @hw: pointer to hardware structure - * - * System-wide timeout range is encoded in PCIe Device Control2 register. - * - * Add 10% to specified maximum and return the number of times to poll for - * completion timeout, in units of 100 microsec. Never return less than - * 800 = 80 millisec. - */ -STATIC u32 ixgbe_pcie_timeout_poll(struct ixgbe_hw *hw) -{ - s16 devctl2; - u32 pollcnt; - - devctl2 = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_CONTROL2); - devctl2 &= IXGBE_PCIDEVCTRL2_TIMEO_MASK; - - switch (devctl2) { - case IXGBE_PCIDEVCTRL2_65_130ms: - pollcnt = 1300; /* 130 millisec */ - break; - case IXGBE_PCIDEVCTRL2_260_520ms: - pollcnt = 5200; /* 520 millisec */ - break; - case IXGBE_PCIDEVCTRL2_1_2s: - pollcnt = 20000; /* 2 sec */ - break; - case IXGBE_PCIDEVCTRL2_4_8s: - pollcnt = 80000; /* 8 sec */ - break; - case IXGBE_PCIDEVCTRL2_17_34s: - pollcnt = 34000; /* 34 sec */ - break; - case IXGBE_PCIDEVCTRL2_50_100us: /* 100 microsecs */ - case IXGBE_PCIDEVCTRL2_1_2ms: /* 2 millisecs */ - case IXGBE_PCIDEVCTRL2_16_32ms: /* 32 millisec */ - case IXGBE_PCIDEVCTRL2_16_32ms_def: /* 32 millisec default */ - default: - pollcnt = 800; /* 80 millisec minimum */ - break; - } - - /* add 10% to spec maximum */ - return (pollcnt * 11) / 10; -} - -/** - * ixgbe_disable_pcie_master - Disable PCI-express master access - * @hw: pointer to hardware structure - * - * Disables PCI-Express master access and verifies there are no pending - * requests. IXGBE_ERR_MASTER_REQUESTS_PENDING is returned if master disable - * bit hasn't caused the master requests to be disabled, else IXGBE_SUCCESS - * is returned signifying master requests disabled. - **/ -s32 ixgbe_disable_pcie_master(struct ixgbe_hw *hw) -{ - s32 status = IXGBE_SUCCESS; - u32 i, poll; - u16 value; - - DEBUGFUNC("ixgbe_disable_pcie_master"); - - /* Always set this bit to ensure any future transactions are blocked */ - IXGBE_WRITE_REG(hw, IXGBE_CTRL, IXGBE_CTRL_GIO_DIS); - - /* Exit if master requests are blocked */ - if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO) || - IXGBE_REMOVED(hw->hw_addr)) - goto out; - - /* Poll for master request bit to clear */ - for (i = 0; i < IXGBE_PCI_MASTER_DISABLE_TIMEOUT; i++) { - usec_delay(100); - if (!(IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_GIO)) - goto out; - } - - /* - * Two consecutive resets are required via CTRL.RST per datasheet - * 5.2.5.3.2 Master Disable. We set a flag to inform the reset routine - * of this need. The first reset prevents new master requests from - * being issued by our device. We then must wait 1usec or more for any - * remaining completions from the PCIe bus to trickle in, and then reset - * again to clear out any effects they may have had on our device. - */ - DEBUGOUT("GIO Master Disable bit didn't clear - requesting resets\n"); - hw->mac.flags |= IXGBE_FLAGS_DOUBLE_RESET_REQUIRED; - - if (hw->mac.type >= ixgbe_mac_X550) - goto out; - - /* - * Before proceeding, make sure that the PCIe block does not have - * transactions pending. - */ - poll = ixgbe_pcie_timeout_poll(hw); - for (i = 0; i < poll; i++) { - usec_delay(100); - value = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_STATUS); - if (IXGBE_REMOVED(hw->hw_addr)) - goto out; - if (!(value & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING)) - goto out; - } - - ERROR_REPORT1(IXGBE_ERROR_POLLING, - "PCIe transaction pending bit also did not clear.\n"); - status = IXGBE_ERR_MASTER_REQUESTS_PENDING; - -out: - return status; -} - -/** - * ixgbe_acquire_swfw_sync - Acquire SWFW semaphore - * @hw: pointer to hardware structure - * @mask: Mask to specify which semaphore to acquire - * - * Acquires the SWFW semaphore through the GSSR register for the specified - * function (CSR, PHY0, PHY1, EEPROM, Flash) - **/ -s32 ixgbe_acquire_swfw_sync(struct ixgbe_hw *hw, u32 mask) -{ - u32 gssr = 0; - u32 swmask = mask; - u32 fwmask = mask << 5; - u32 timeout = 200; - u32 i; - - DEBUGFUNC("ixgbe_acquire_swfw_sync"); - - for (i = 0; i < timeout; i++) { - /* - * SW NVM semaphore bit is used for access to all - * SW_FW_SYNC bits (not just NVM) - */ - if (ixgbe_get_eeprom_semaphore(hw)) - return IXGBE_ERR_SWFW_SYNC; - - gssr = IXGBE_READ_REG(hw, IXGBE_GSSR); - if (!(gssr & (fwmask | swmask))) { - gssr |= swmask; - IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr); - ixgbe_release_eeprom_semaphore(hw); - return IXGBE_SUCCESS; - } else { - /* Resource is currently in use by FW or SW */ - ixgbe_release_eeprom_semaphore(hw); - msec_delay(5); - } - } - - /* If time expired clear the bits holding the lock and retry */ - if (gssr & (fwmask | swmask)) - ixgbe_release_swfw_sync(hw, gssr & (fwmask | swmask)); - - msec_delay(5); - return IXGBE_ERR_SWFW_SYNC; -} - -/** - * ixgbe_release_swfw_sync - Release SWFW semaphore - * @hw: pointer to hardware structure - * @mask: Mask to specify which semaphore to release - * - * Releases the SWFW semaphore through the GSSR register for the specified - * function (CSR, PHY0, PHY1, EEPROM, Flash) - **/ -void ixgbe_release_swfw_sync(struct ixgbe_hw *hw, u32 mask) -{ - u32 gssr; - u32 swmask = mask; - - DEBUGFUNC("ixgbe_release_swfw_sync"); - - ixgbe_get_eeprom_semaphore(hw); - - gssr = IXGBE_READ_REG(hw, IXGBE_GSSR); - gssr &= ~swmask; - IXGBE_WRITE_REG(hw, IXGBE_GSSR, gssr); - - ixgbe_release_eeprom_semaphore(hw); -} - -/** - * ixgbe_disable_sec_rx_path_generic - Stops the receive data path - * @hw: pointer to hardware structure - * - * Stops the receive data path and waits for the HW to internally empty - * the Rx security block - **/ -s32 ixgbe_disable_sec_rx_path_generic(struct ixgbe_hw *hw) -{ -#define IXGBE_MAX_SECRX_POLL 40 - - int i; - int secrxreg; - - DEBUGFUNC("ixgbe_disable_sec_rx_path_generic"); - - - secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL); - secrxreg |= IXGBE_SECRXCTRL_RX_DIS; - IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg); - for (i = 0; i < IXGBE_MAX_SECRX_POLL; i++) { - secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXSTAT); - if (secrxreg & IXGBE_SECRXSTAT_SECRX_RDY) - break; - else - /* Use interrupt-safe sleep just in case */ - usec_delay(1000); - } - - /* For informational purposes only */ - if (i >= IXGBE_MAX_SECRX_POLL) - DEBUGOUT("Rx unit being enabled before security " - "path fully disabled. Continuing with init.\n"); - - return IXGBE_SUCCESS; -} - -/** - * prot_autoc_read_generic - Hides MAC differences needed for AUTOC read - * @hw: pointer to hardware structure - * @reg_val: Value we read from AUTOC - * - * The default case requires no protection so just to the register read. - */ -s32 prot_autoc_read_generic(struct ixgbe_hw *hw, bool *locked, u32 *reg_val) -{ - *locked = false; - *reg_val = IXGBE_READ_REG(hw, IXGBE_AUTOC); - return IXGBE_SUCCESS; -} - -/** - * prot_autoc_write_generic - Hides MAC differences needed for AUTOC write - * @hw: pointer to hardware structure - * @reg_val: value to write to AUTOC - * @locked: bool to indicate whether the SW/FW lock was already taken by - * previous read. - * - * The default case requires no protection so just to the register write. - */ -s32 prot_autoc_write_generic(struct ixgbe_hw *hw, u32 reg_val, bool locked) -{ - UNREFERENCED_1PARAMETER(locked); - - IXGBE_WRITE_REG(hw, IXGBE_AUTOC, reg_val); - return IXGBE_SUCCESS; -} - -/** - * ixgbe_enable_sec_rx_path_generic - Enables the receive data path - * @hw: pointer to hardware structure - * - * Enables the receive data path. - **/ -s32 ixgbe_enable_sec_rx_path_generic(struct ixgbe_hw *hw) -{ - int secrxreg; - - DEBUGFUNC("ixgbe_enable_sec_rx_path_generic"); - - secrxreg = IXGBE_READ_REG(hw, IXGBE_SECRXCTRL); - secrxreg &= ~IXGBE_SECRXCTRL_RX_DIS; - IXGBE_WRITE_REG(hw, IXGBE_SECRXCTRL, secrxreg); - IXGBE_WRITE_FLUSH(hw); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_enable_rx_dma_generic - Enable the Rx DMA unit - * @hw: pointer to hardware structure - * @regval: register value to write to RXCTRL - * - * Enables the Rx DMA unit - **/ -s32 ixgbe_enable_rx_dma_generic(struct ixgbe_hw *hw, u32 regval) -{ - DEBUGFUNC("ixgbe_enable_rx_dma_generic"); - - if (regval & IXGBE_RXCTRL_RXEN) - ixgbe_enable_rx(hw); - else - ixgbe_disable_rx(hw); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_blink_led_start_generic - Blink LED based on index. - * @hw: pointer to hardware structure - * @index: led number to blink - **/ -s32 ixgbe_blink_led_start_generic(struct ixgbe_hw *hw, u32 index) -{ - ixgbe_link_speed speed = 0; - bool link_up = 0; - u32 autoc_reg = 0; - u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); - s32 ret_val = IXGBE_SUCCESS; - bool locked = false; - - DEBUGFUNC("ixgbe_blink_led_start_generic"); - - /* - * Link must be up to auto-blink the LEDs; - * Force it if link is down. - */ - hw->mac.ops.check_link(hw, &speed, &link_up, false); - - if (!link_up) { - ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg); - if (ret_val != IXGBE_SUCCESS) - goto out; - - autoc_reg |= IXGBE_AUTOC_AN_RESTART; - autoc_reg |= IXGBE_AUTOC_FLU; - - ret_val = hw->mac.ops.prot_autoc_write(hw, autoc_reg, locked); - if (ret_val != IXGBE_SUCCESS) - goto out; - - IXGBE_WRITE_FLUSH(hw); - msec_delay(10); - } - - led_reg &= ~IXGBE_LED_MODE_MASK(index); - led_reg |= IXGBE_LED_BLINK(index); - IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg); - IXGBE_WRITE_FLUSH(hw); - -out: - return ret_val; -} - -/** - * ixgbe_blink_led_stop_generic - Stop blinking LED based on index. - * @hw: pointer to hardware structure - * @index: led number to stop blinking - **/ -s32 ixgbe_blink_led_stop_generic(struct ixgbe_hw *hw, u32 index) -{ - u32 autoc_reg = 0; - u32 led_reg = IXGBE_READ_REG(hw, IXGBE_LEDCTL); - s32 ret_val = IXGBE_SUCCESS; - bool locked = false; - - DEBUGFUNC("ixgbe_blink_led_stop_generic"); - - ret_val = hw->mac.ops.prot_autoc_read(hw, &locked, &autoc_reg); - if (ret_val != IXGBE_SUCCESS) - goto out; - - autoc_reg &= ~IXGBE_AUTOC_FLU; - autoc_reg |= IXGBE_AUTOC_AN_RESTART; - - ret_val = hw->mac.ops.prot_autoc_write(hw, autoc_reg, locked); - if (ret_val != IXGBE_SUCCESS) - goto out; - - led_reg &= ~IXGBE_LED_MODE_MASK(index); - led_reg &= ~IXGBE_LED_BLINK(index); - led_reg |= IXGBE_LED_LINK_ACTIVE << IXGBE_LED_MODE_SHIFT(index); - IXGBE_WRITE_REG(hw, IXGBE_LEDCTL, led_reg); - IXGBE_WRITE_FLUSH(hw); - -out: - return ret_val; -} - -/** - * ixgbe_get_san_mac_addr_offset - Get SAN MAC address offset from the EEPROM - * @hw: pointer to hardware structure - * @san_mac_offset: SAN MAC address offset - * - * This function will read the EEPROM location for the SAN MAC address - * pointer, and returns the value at that location. This is used in both - * get and set mac_addr routines. - **/ -STATIC s32 ixgbe_get_san_mac_addr_offset(struct ixgbe_hw *hw, - u16 *san_mac_offset) -{ - s32 ret_val; - - DEBUGFUNC("ixgbe_get_san_mac_addr_offset"); - - /* - * First read the EEPROM pointer to see if the MAC addresses are - * available. - */ - ret_val = hw->eeprom.ops.read(hw, IXGBE_SAN_MAC_ADDR_PTR, - san_mac_offset); - if (ret_val) { - ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE, - "eeprom at offset %d failed", - IXGBE_SAN_MAC_ADDR_PTR); - } - - return ret_val; -} - -/** - * ixgbe_get_san_mac_addr_generic - SAN MAC address retrieval from the EEPROM - * @hw: pointer to hardware structure - * @san_mac_addr: SAN MAC address - * - * Reads the SAN MAC address from the EEPROM, if it's available. This is - * per-port, so set_lan_id() must be called before reading the addresses. - * set_lan_id() is called by identify_sfp(), but this cannot be relied - * upon for non-SFP connections, so we must call it here. - **/ -s32 ixgbe_get_san_mac_addr_generic(struct ixgbe_hw *hw, u8 *san_mac_addr) -{ - u16 san_mac_data, san_mac_offset; - u8 i; - s32 ret_val; - - DEBUGFUNC("ixgbe_get_san_mac_addr_generic"); - - /* - * First read the EEPROM pointer to see if the MAC addresses are - * available. If they're not, no point in calling set_lan_id() here. - */ - ret_val = ixgbe_get_san_mac_addr_offset(hw, &san_mac_offset); - if (ret_val || san_mac_offset == 0 || san_mac_offset == 0xFFFF) - goto san_mac_addr_out; - - /* make sure we know which port we need to program */ - hw->mac.ops.set_lan_id(hw); - /* apply the port offset to the address offset */ - (hw->bus.func) ? (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT1_OFFSET) : - (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT0_OFFSET); - for (i = 0; i < 3; i++) { - ret_val = hw->eeprom.ops.read(hw, san_mac_offset, - &san_mac_data); - if (ret_val) { - ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE, - "eeprom read at offset %d failed", - san_mac_offset); - goto san_mac_addr_out; - } - san_mac_addr[i * 2] = (u8)(san_mac_data); - san_mac_addr[i * 2 + 1] = (u8)(san_mac_data >> 8); - san_mac_offset++; - } - return IXGBE_SUCCESS; - -san_mac_addr_out: - /* - * No addresses available in this EEPROM. It's not an - * error though, so just wipe the local address and return. - */ - for (i = 0; i < 6; i++) - san_mac_addr[i] = 0xFF; - return IXGBE_SUCCESS; -} - -/** - * ixgbe_set_san_mac_addr_generic - Write the SAN MAC address to the EEPROM - * @hw: pointer to hardware structure - * @san_mac_addr: SAN MAC address - * - * Write a SAN MAC address to the EEPROM. - **/ -s32 ixgbe_set_san_mac_addr_generic(struct ixgbe_hw *hw, u8 *san_mac_addr) -{ - s32 ret_val; - u16 san_mac_data, san_mac_offset; - u8 i; - - DEBUGFUNC("ixgbe_set_san_mac_addr_generic"); - - /* Look for SAN mac address pointer. If not defined, return */ - ret_val = ixgbe_get_san_mac_addr_offset(hw, &san_mac_offset); - if (ret_val || san_mac_offset == 0 || san_mac_offset == 0xFFFF) - return IXGBE_ERR_NO_SAN_ADDR_PTR; - - /* Make sure we know which port we need to write */ - hw->mac.ops.set_lan_id(hw); - /* Apply the port offset to the address offset */ - (hw->bus.func) ? (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT1_OFFSET) : - (san_mac_offset += IXGBE_SAN_MAC_ADDR_PORT0_OFFSET); - - for (i = 0; i < 3; i++) { - san_mac_data = (u16)((u16)(san_mac_addr[i * 2 + 1]) << 8); - san_mac_data |= (u16)(san_mac_addr[i * 2]); - hw->eeprom.ops.write(hw, san_mac_offset, san_mac_data); - san_mac_offset++; - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_get_pcie_msix_count_generic - Gets MSI-X vector count - * @hw: pointer to hardware structure - * - * Read PCIe configuration space, and get the MSI-X vector count from - * the capabilities table. - **/ -u16 ixgbe_get_pcie_msix_count_generic(struct ixgbe_hw *hw) -{ - u16 msix_count = 1; - u16 max_msix_count; - u16 pcie_offset; - - switch (hw->mac.type) { - case ixgbe_mac_82598EB: - pcie_offset = IXGBE_PCIE_MSIX_82598_CAPS; - max_msix_count = IXGBE_MAX_MSIX_VECTORS_82598; - break; - case ixgbe_mac_82599EB: - case ixgbe_mac_X540: - case ixgbe_mac_X550: - case ixgbe_mac_X550EM_x: - pcie_offset = IXGBE_PCIE_MSIX_82599_CAPS; - max_msix_count = IXGBE_MAX_MSIX_VECTORS_82599; - break; - default: - return msix_count; - } - - DEBUGFUNC("ixgbe_get_pcie_msix_count_generic"); - msix_count = IXGBE_READ_PCIE_WORD(hw, pcie_offset); - if (IXGBE_REMOVED(hw->hw_addr)) - msix_count = 0; - msix_count &= IXGBE_PCIE_MSIX_TBL_SZ_MASK; - - /* MSI-X count is zero-based in HW */ - msix_count++; - - if (msix_count > max_msix_count) - msix_count = max_msix_count; - - return msix_count; -} - -/** - * ixgbe_insert_mac_addr_generic - Find a RAR for this mac address - * @hw: pointer to hardware structure - * @addr: Address to put into receive address register - * @vmdq: VMDq pool to assign - * - * Puts an ethernet address into a receive address register, or - * finds the rar that it is aleady in; adds to the pool list - **/ -s32 ixgbe_insert_mac_addr_generic(struct ixgbe_hw *hw, u8 *addr, u32 vmdq) -{ - static const u32 NO_EMPTY_RAR_FOUND = 0xFFFFFFFF; - u32 first_empty_rar = NO_EMPTY_RAR_FOUND; - u32 rar; - u32 rar_low, rar_high; - u32 addr_low, addr_high; - - DEBUGFUNC("ixgbe_insert_mac_addr_generic"); - - /* swap bytes for HW little endian */ - addr_low = addr[0] | (addr[1] << 8) - | (addr[2] << 16) - | (addr[3] << 24); - addr_high = addr[4] | (addr[5] << 8); - - /* - * Either find the mac_id in rar or find the first empty space. - * rar_highwater points to just after the highest currently used - * rar in order to shorten the search. It grows when we add a new - * rar to the top. - */ - for (rar = 0; rar < hw->mac.rar_highwater; rar++) { - rar_high = IXGBE_READ_REG(hw, IXGBE_RAH(rar)); - - if (((IXGBE_RAH_AV & rar_high) == 0) - && first_empty_rar == NO_EMPTY_RAR_FOUND) { - first_empty_rar = rar; - } else if ((rar_high & 0xFFFF) == addr_high) { - rar_low = IXGBE_READ_REG(hw, IXGBE_RAL(rar)); - if (rar_low == addr_low) - break; /* found it already in the rars */ - } - } - - if (rar < hw->mac.rar_highwater) { - /* already there so just add to the pool bits */ - ixgbe_set_vmdq(hw, rar, vmdq); - } else if (first_empty_rar != NO_EMPTY_RAR_FOUND) { - /* stick it into first empty RAR slot we found */ - rar = first_empty_rar; - ixgbe_set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV); - } else if (rar == hw->mac.rar_highwater) { - /* add it to the top of the list and inc the highwater mark */ - ixgbe_set_rar(hw, rar, addr, vmdq, IXGBE_RAH_AV); - hw->mac.rar_highwater++; - } else if (rar >= hw->mac.num_rar_entries) { - return IXGBE_ERR_INVALID_MAC_ADDR; - } - - /* - * If we found rar[0], make sure the default pool bit (we use pool 0) - * remains cleared to be sure default pool packets will get delivered - */ - if (rar == 0) - ixgbe_clear_vmdq(hw, rar, 0); - - return rar; -} - -/** - * ixgbe_clear_vmdq_generic - Disassociate a VMDq pool index from a rx address - * @hw: pointer to hardware struct - * @rar: receive address register index to disassociate - * @vmdq: VMDq pool index to remove from the rar - **/ -s32 ixgbe_clear_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq) -{ - u32 mpsar_lo, mpsar_hi; - u32 rar_entries = hw->mac.num_rar_entries; - - DEBUGFUNC("ixgbe_clear_vmdq_generic"); - - /* Make sure we are using a valid rar index range */ - if (rar >= rar_entries) { - ERROR_REPORT2(IXGBE_ERROR_ARGUMENT, - "RAR index %d is out of range.\n", rar); - return IXGBE_ERR_INVALID_ARGUMENT; - } - - mpsar_lo = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar)); - mpsar_hi = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar)); - - if (IXGBE_REMOVED(hw->hw_addr)) - goto done; - - if (!mpsar_lo && !mpsar_hi) - goto done; - - if (vmdq == IXGBE_CLEAR_VMDQ_ALL) { - if (mpsar_lo) { - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0); - mpsar_lo = 0; - } - if (mpsar_hi) { - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0); - mpsar_hi = 0; - } - } else if (vmdq < 32) { - mpsar_lo &= ~(1 << vmdq); - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar_lo); - } else { - mpsar_hi &= ~(1 << (vmdq - 32)); - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar_hi); - } - - /* was that the last pool using this rar? */ - if (mpsar_lo == 0 && mpsar_hi == 0 && rar != 0) - hw->mac.ops.clear_rar(hw, rar); -done: - return IXGBE_SUCCESS; -} - -/** - * ixgbe_set_vmdq_generic - Associate a VMDq pool index with a rx address - * @hw: pointer to hardware struct - * @rar: receive address register index to associate with a VMDq index - * @vmdq: VMDq pool index - **/ -s32 ixgbe_set_vmdq_generic(struct ixgbe_hw *hw, u32 rar, u32 vmdq) -{ - u32 mpsar; - u32 rar_entries = hw->mac.num_rar_entries; - - DEBUGFUNC("ixgbe_set_vmdq_generic"); - - /* Make sure we are using a valid rar index range */ - if (rar >= rar_entries) { - ERROR_REPORT2(IXGBE_ERROR_ARGUMENT, - "RAR index %d is out of range.\n", rar); - return IXGBE_ERR_INVALID_ARGUMENT; - } - - if (vmdq < 32) { - mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_LO(rar)); - mpsar |= 1 << vmdq; - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), mpsar); - } else { - mpsar = IXGBE_READ_REG(hw, IXGBE_MPSAR_HI(rar)); - mpsar |= 1 << (vmdq - 32); - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), mpsar); - } - return IXGBE_SUCCESS; -} - -/** - * This function should only be involved in the IOV mode. - * In IOV mode, Default pool is next pool after the number of - * VFs advertized and not 0. - * MPSAR table needs to be updated for SAN_MAC RAR [hw->mac.san_mac_rar_index] - * - * ixgbe_set_vmdq_san_mac - Associate default VMDq pool index with a rx address - * @hw: pointer to hardware struct - * @vmdq: VMDq pool index - **/ -s32 ixgbe_set_vmdq_san_mac_generic(struct ixgbe_hw *hw, u32 vmdq) -{ - u32 rar = hw->mac.san_mac_rar_index; - - DEBUGFUNC("ixgbe_set_vmdq_san_mac"); - - if (vmdq < 32) { - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 1 << vmdq); - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 0); - } else { - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(rar), 0); - IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(rar), 1 << (vmdq - 32)); - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_init_uta_tables_generic - Initialize the Unicast Table Array - * @hw: pointer to hardware structure - **/ -s32 ixgbe_init_uta_tables_generic(struct ixgbe_hw *hw) -{ - int i; - - DEBUGFUNC("ixgbe_init_uta_tables_generic"); - DEBUGOUT(" Clearing UTA\n"); - - for (i = 0; i < 128; i++) - IXGBE_WRITE_REG(hw, IXGBE_UTA(i), 0); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_find_vlvf_slot - find the vlanid or the first empty slot - * @hw: pointer to hardware structure - * @vlan: VLAN id to write to VLAN filter - * - * return the VLVF index where this VLAN id should be placed - * - **/ -s32 ixgbe_find_vlvf_slot(struct ixgbe_hw *hw, u32 vlan) -{ - u32 bits = 0; - u32 first_empty_slot = 0; - s32 regindex; - - /* short cut the special case */ - if (vlan == 0) - return 0; - - /* - * Search for the vlan id in the VLVF entries. Save off the first empty - * slot found along the way - */ - for (regindex = 1; regindex < IXGBE_VLVF_ENTRIES; regindex++) { - bits = IXGBE_READ_REG(hw, IXGBE_VLVF(regindex)); - if (!bits && !(first_empty_slot)) - first_empty_slot = regindex; - else if ((bits & 0x0FFF) == vlan) - break; - } - - /* - * If regindex is less than IXGBE_VLVF_ENTRIES, then we found the vlan - * in the VLVF. Else use the first empty VLVF register for this - * vlan id. - */ - if (regindex >= IXGBE_VLVF_ENTRIES) { - if (first_empty_slot) - regindex = first_empty_slot; - else { - ERROR_REPORT1(IXGBE_ERROR_SOFTWARE, - "No space in VLVF.\n"); - regindex = IXGBE_ERR_NO_SPACE; - } - } - - return regindex; -} - -/** - * ixgbe_set_vfta_generic - Set VLAN filter table - * @hw: pointer to hardware structure - * @vlan: VLAN id to write to VLAN filter - * @vind: VMDq output index that maps queue to VLAN id in VFVFB - * @vlan_on: boolean flag to turn on/off VLAN in VFVF - * - * Turn on/off specified VLAN in the VLAN filter table. - **/ -s32 ixgbe_set_vfta_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind, - bool vlan_on) -{ - s32 regindex; - u32 bitindex; - u32 vfta; - u32 targetbit; - s32 ret_val = IXGBE_SUCCESS; - bool vfta_changed = false; - - DEBUGFUNC("ixgbe_set_vfta_generic"); - - if (vlan > 4095) - return IXGBE_ERR_PARAM; - - /* - * this is a 2 part operation - first the VFTA, then the - * VLVF and VLVFB if VT Mode is set - * We don't write the VFTA until we know the VLVF part succeeded. - */ - - /* Part 1 - * The VFTA is a bitstring made up of 128 32-bit registers - * that enable the particular VLAN id, much like the MTA: - * bits[11-5]: which register - * bits[4-0]: which bit in the register - */ - regindex = (vlan >> 5) & 0x7F; - bitindex = vlan & 0x1F; - targetbit = (1 << bitindex); - vfta = IXGBE_READ_REG(hw, IXGBE_VFTA(regindex)); - - if (vlan_on) { - if (!(vfta & targetbit)) { - vfta |= targetbit; - vfta_changed = true; - } - } else { - if ((vfta & targetbit)) { - vfta &= ~targetbit; - vfta_changed = true; - } - } - - /* Part 2 - * Call ixgbe_set_vlvf_generic to set VLVFB and VLVF - */ - ret_val = ixgbe_set_vlvf_generic(hw, vlan, vind, vlan_on, - &vfta_changed); - if (ret_val != IXGBE_SUCCESS) - return ret_val; - - if (vfta_changed) - IXGBE_WRITE_REG(hw, IXGBE_VFTA(regindex), vfta); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_set_vlvf_generic - Set VLAN Pool Filter - * @hw: pointer to hardware structure - * @vlan: VLAN id to write to VLAN filter - * @vind: VMDq output index that maps queue to VLAN id in VFVFB - * @vlan_on: boolean flag to turn on/off VLAN in VFVF - * @vfta_changed: pointer to boolean flag which indicates whether VFTA - * should be changed - * - * Turn on/off specified bit in VLVF table. - **/ -s32 ixgbe_set_vlvf_generic(struct ixgbe_hw *hw, u32 vlan, u32 vind, - bool vlan_on, bool *vfta_changed) -{ - u32 vt; - - DEBUGFUNC("ixgbe_set_vlvf_generic"); - - if (vlan > 4095) - return IXGBE_ERR_PARAM; - - /* If VT Mode is set - * Either vlan_on - * make sure the vlan is in VLVF - * set the vind bit in the matching VLVFB - * Or !vlan_on - * clear the pool bit and possibly the vind - */ - vt = IXGBE_READ_REG(hw, IXGBE_VT_CTL); - if (vt & IXGBE_VT_CTL_VT_ENABLE) { - s32 vlvf_index; - u32 bits; - - vlvf_index = ixgbe_find_vlvf_slot(hw, vlan); - if (vlvf_index < 0) - return vlvf_index; - - if (vlan_on) { - /* set the pool bit */ - if (vind < 32) { - bits = IXGBE_READ_REG(hw, - IXGBE_VLVFB(vlvf_index * 2)); - bits |= (1 << vind); - IXGBE_WRITE_REG(hw, - IXGBE_VLVFB(vlvf_index * 2), - bits); - } else { - bits = IXGBE_READ_REG(hw, - IXGBE_VLVFB((vlvf_index * 2) + 1)); - bits |= (1 << (vind - 32)); - IXGBE_WRITE_REG(hw, - IXGBE_VLVFB((vlvf_index * 2) + 1), - bits); - } - } else { - /* clear the pool bit */ - if (vind < 32) { - bits = IXGBE_READ_REG(hw, - IXGBE_VLVFB(vlvf_index * 2)); - bits &= ~(1 << vind); - IXGBE_WRITE_REG(hw, - IXGBE_VLVFB(vlvf_index * 2), - bits); - bits |= IXGBE_READ_REG(hw, - IXGBE_VLVFB((vlvf_index * 2) + 1)); - } else { - bits = IXGBE_READ_REG(hw, - IXGBE_VLVFB((vlvf_index * 2) + 1)); - bits &= ~(1 << (vind - 32)); - IXGBE_WRITE_REG(hw, - IXGBE_VLVFB((vlvf_index * 2) + 1), - bits); - bits |= IXGBE_READ_REG(hw, - IXGBE_VLVFB(vlvf_index * 2)); - } - } - - /* - * If there are still bits set in the VLVFB registers - * for the VLAN ID indicated we need to see if the - * caller is requesting that we clear the VFTA entry bit. - * If the caller has requested that we clear the VFTA - * entry bit but there are still pools/VFs using this VLAN - * ID entry then ignore the request. We're not worried - * about the case where we're turning the VFTA VLAN ID - * entry bit on, only when requested to turn it off as - * there may be multiple pools and/or VFs using the - * VLAN ID entry. In that case we cannot clear the - * VFTA bit until all pools/VFs using that VLAN ID have also - * been cleared. This will be indicated by "bits" being - * zero. - */ - if (bits) { - IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index), - (IXGBE_VLVF_VIEN | vlan)); - if ((!vlan_on) && (vfta_changed != NULL)) { - /* someone wants to clear the vfta entry - * but some pools/VFs are still using it. - * Ignore it. */ - *vfta_changed = false; - } - } else - IXGBE_WRITE_REG(hw, IXGBE_VLVF(vlvf_index), 0); - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_clear_vfta_generic - Clear VLAN filter table - * @hw: pointer to hardware structure - * - * Clears the VLAN filer table, and the VMDq index associated with the filter - **/ -s32 ixgbe_clear_vfta_generic(struct ixgbe_hw *hw) -{ - u32 offset; - - DEBUGFUNC("ixgbe_clear_vfta_generic"); - - for (offset = 0; offset < hw->mac.vft_size; offset++) - IXGBE_WRITE_REG(hw, IXGBE_VFTA(offset), 0); - - for (offset = 0; offset < IXGBE_VLVF_ENTRIES; offset++) { - IXGBE_WRITE_REG(hw, IXGBE_VLVF(offset), 0); - IXGBE_WRITE_REG(hw, IXGBE_VLVFB(offset * 2), 0); - IXGBE_WRITE_REG(hw, IXGBE_VLVFB((offset * 2) + 1), 0); - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_check_mac_link_generic - Determine link and speed status - * @hw: pointer to hardware structure - * @speed: pointer to link speed - * @link_up: true when link is up - * @link_up_wait_to_complete: bool used to wait for link up or not - * - * Reads the links register to determine if link is up and the current speed - **/ -s32 ixgbe_check_mac_link_generic(struct ixgbe_hw *hw, ixgbe_link_speed *speed, - bool *link_up, bool link_up_wait_to_complete) -{ - u32 links_reg, links_orig; - u32 i; - - DEBUGFUNC("ixgbe_check_mac_link_generic"); - - /* clear the old state */ - links_orig = IXGBE_READ_REG(hw, IXGBE_LINKS); - - links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); - - if (links_orig != links_reg) { - DEBUGOUT2("LINKS changed from %08X to %08X\n", - links_orig, links_reg); - } - - if (link_up_wait_to_complete) { - for (i = 0; i < hw->mac.max_link_up_time; i++) { - if (links_reg & IXGBE_LINKS_UP) { - *link_up = true; - break; - } else { - *link_up = false; - } - msec_delay(100); - links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); - } - } else { - if (links_reg & IXGBE_LINKS_UP) - *link_up = true; - else - *link_up = false; - } - - switch (links_reg & IXGBE_LINKS_SPEED_82599) { - case IXGBE_LINKS_SPEED_10G_82599: - *speed = IXGBE_LINK_SPEED_10GB_FULL; - if (hw->mac.type >= ixgbe_mac_X550) { - if (links_reg & IXGBE_LINKS_SPEED_NON_STD) - *speed = IXGBE_LINK_SPEED_2_5GB_FULL; - } - break; - case IXGBE_LINKS_SPEED_1G_82599: - *speed = IXGBE_LINK_SPEED_1GB_FULL; - break; - case IXGBE_LINKS_SPEED_100_82599: - *speed = IXGBE_LINK_SPEED_100_FULL; - if (hw->mac.type >= ixgbe_mac_X550) { - if (links_reg & IXGBE_LINKS_SPEED_NON_STD) - *speed = IXGBE_LINK_SPEED_5GB_FULL; - } - break; - default: - *speed = IXGBE_LINK_SPEED_UNKNOWN; - } - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_get_wwn_prefix_generic - Get alternative WWNN/WWPN prefix from - * the EEPROM - * @hw: pointer to hardware structure - * @wwnn_prefix: the alternative WWNN prefix - * @wwpn_prefix: the alternative WWPN prefix - * - * This function will read the EEPROM from the alternative SAN MAC address - * block to check the support for the alternative WWNN/WWPN prefix support. - **/ -s32 ixgbe_get_wwn_prefix_generic(struct ixgbe_hw *hw, u16 *wwnn_prefix, - u16 *wwpn_prefix) -{ - u16 offset, caps; - u16 alt_san_mac_blk_offset; - - DEBUGFUNC("ixgbe_get_wwn_prefix_generic"); - - /* clear output first */ - *wwnn_prefix = 0xFFFF; - *wwpn_prefix = 0xFFFF; - - /* check if alternative SAN MAC is supported */ - offset = IXGBE_ALT_SAN_MAC_ADDR_BLK_PTR; - if (hw->eeprom.ops.read(hw, offset, &alt_san_mac_blk_offset)) - goto wwn_prefix_err; - - if ((alt_san_mac_blk_offset == 0) || - (alt_san_mac_blk_offset == 0xFFFF)) - goto wwn_prefix_out; - - /* check capability in alternative san mac address block */ - offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_CAPS_OFFSET; - if (hw->eeprom.ops.read(hw, offset, &caps)) - goto wwn_prefix_err; - if (!(caps & IXGBE_ALT_SAN_MAC_ADDR_CAPS_ALTWWN)) - goto wwn_prefix_out; - - /* get the corresponding prefix for WWNN/WWPN */ - offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWNN_OFFSET; - if (hw->eeprom.ops.read(hw, offset, wwnn_prefix)) { - ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE, - "eeprom read at offset %d failed", offset); - } - - offset = alt_san_mac_blk_offset + IXGBE_ALT_SAN_MAC_ADDR_WWPN_OFFSET; - if (hw->eeprom.ops.read(hw, offset, wwpn_prefix)) - goto wwn_prefix_err; - -wwn_prefix_out: - return IXGBE_SUCCESS; - -wwn_prefix_err: - ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE, - "eeprom read at offset %d failed", offset); - return IXGBE_SUCCESS; -} - -/** - * ixgbe_get_fcoe_boot_status_generic - Get FCOE boot status from EEPROM - * @hw: pointer to hardware structure - * @bs: the fcoe boot status - * - * This function will read the FCOE boot status from the iSCSI FCOE block - **/ -s32 ixgbe_get_fcoe_boot_status_generic(struct ixgbe_hw *hw, u16 *bs) -{ - u16 offset, caps, flags; - s32 status; - - DEBUGFUNC("ixgbe_get_fcoe_boot_status_generic"); - - /* clear output first */ - *bs = ixgbe_fcoe_bootstatus_unavailable; - - /* check if FCOE IBA block is present */ - offset = IXGBE_FCOE_IBA_CAPS_BLK_PTR; - status = hw->eeprom.ops.read(hw, offset, &caps); - if (status != IXGBE_SUCCESS) - goto out; - - if (!(caps & IXGBE_FCOE_IBA_CAPS_FCOE)) - goto out; - - /* check if iSCSI FCOE block is populated */ - status = hw->eeprom.ops.read(hw, IXGBE_ISCSI_FCOE_BLK_PTR, &offset); - if (status != IXGBE_SUCCESS) - goto out; - - if ((offset == 0) || (offset == 0xFFFF)) - goto out; - - /* read fcoe flags in iSCSI FCOE block */ - offset = offset + IXGBE_ISCSI_FCOE_FLAGS_OFFSET; - status = hw->eeprom.ops.read(hw, offset, &flags); - if (status != IXGBE_SUCCESS) - goto out; - - if (flags & IXGBE_ISCSI_FCOE_FLAGS_ENABLE) - *bs = ixgbe_fcoe_bootstatus_enabled; - else - *bs = ixgbe_fcoe_bootstatus_disabled; - -out: - return status; -} - -/** - * ixgbe_set_mac_anti_spoofing - Enable/Disable MAC anti-spoofing - * @hw: pointer to hardware structure - * @enable: enable or disable switch for anti-spoofing - * @pf: Physical Function pool - do not enable anti-spoofing for the PF - * - **/ -void ixgbe_set_mac_anti_spoofing(struct ixgbe_hw *hw, bool enable, int pf) -{ - int j; - int pf_target_reg = pf >> 3; - int pf_target_shift = pf % 8; - u32 pfvfspoof = 0; - - if (hw->mac.type == ixgbe_mac_82598EB) - return; - - if (enable) - pfvfspoof = IXGBE_SPOOF_MACAS_MASK; - - /* - * PFVFSPOOF register array is size 8 with 8 bits assigned to - * MAC anti-spoof enables in each register array element. - */ - for (j = 0; j < pf_target_reg; j++) - IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(j), pfvfspoof); - - /* - * The PF should be allowed to spoof so that it can support - * emulation mode NICs. Do not set the bits assigned to the PF - */ - pfvfspoof &= (1 << pf_target_shift) - 1; - IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(j), pfvfspoof); - - /* - * Remaining pools belong to the PF so they do not need to have - * anti-spoofing enabled. - */ - for (j++; j < IXGBE_PFVFSPOOF_REG_COUNT; j++) - IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(j), 0); -} - -/** - * ixgbe_set_vlan_anti_spoofing - Enable/Disable VLAN anti-spoofing - * @hw: pointer to hardware structure - * @enable: enable or disable switch for VLAN anti-spoofing - * @vf: Virtual Function pool - VF Pool to set for VLAN anti-spoofing - * - **/ -void ixgbe_set_vlan_anti_spoofing(struct ixgbe_hw *hw, bool enable, int vf) -{ - int vf_target_reg = vf >> 3; - int vf_target_shift = vf % 8 + IXGBE_SPOOF_VLANAS_SHIFT; - u32 pfvfspoof; - - if (hw->mac.type == ixgbe_mac_82598EB) - return; - - pfvfspoof = IXGBE_READ_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg)); - if (enable) - pfvfspoof |= (1 << vf_target_shift); - else - pfvfspoof &= ~(1 << vf_target_shift); - IXGBE_WRITE_REG(hw, IXGBE_PFVFSPOOF(vf_target_reg), pfvfspoof); -} - -/** - * ixgbe_get_device_caps_generic - Get additional device capabilities - * @hw: pointer to hardware structure - * @device_caps: the EEPROM word with the extra device capabilities - * - * This function will read the EEPROM location for the device capabilities, - * and return the word through device_caps. - **/ -s32 ixgbe_get_device_caps_generic(struct ixgbe_hw *hw, u16 *device_caps) -{ - DEBUGFUNC("ixgbe_get_device_caps_generic"); - - hw->eeprom.ops.read(hw, IXGBE_DEVICE_CAPS, device_caps); - - return IXGBE_SUCCESS; -} - -/** - * ixgbe_enable_relaxed_ordering_gen2 - Enable relaxed ordering - * @hw: pointer to hardware structure - * - **/ -void ixgbe_enable_relaxed_ordering_gen2(struct ixgbe_hw *hw) -{ - u32 regval; - u32 i; - - DEBUGFUNC("ixgbe_enable_relaxed_ordering_gen2"); - - /* Enable relaxed ordering */ - for (i = 0; i < hw->mac.max_tx_queues; i++) { - regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i)); - regval |= IXGBE_DCA_TXCTRL_DESC_WRO_EN; - IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), regval); - } - - for (i = 0; i < hw->mac.max_rx_queues; i++) { - regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i)); - regval |= IXGBE_DCA_RXCTRL_DATA_WRO_EN | - IXGBE_DCA_RXCTRL_HEAD_WRO_EN; - IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval); - } - -} - -/** - * ixgbe_calculate_checksum - Calculate checksum for buffer - * @buffer: pointer to EEPROM - * @length: size of EEPROM to calculate a checksum for - * Calculates the checksum for some buffer on a specified length. The - * checksum calculated is returned. - **/ -u8 ixgbe_calculate_checksum(u8 *buffer, u32 length) -{ - u32 i; - u8 sum = 0; - - DEBUGFUNC("ixgbe_calculate_checksum"); - - if (!buffer) - return 0; - - for (i = 0; i < length; i++) - sum += buffer[i]; - - return (u8) (0 - sum); -} - -/** - * ixgbe_host_interface_command - Issue command to manageability block - * @hw: pointer to the HW structure - * @buffer: contains the command to write and where the return status will - * be placed - * @length: length of buffer, must be multiple of 4 bytes - * @timeout: time in ms to wait for command completion - * @return_data: read and return data from the buffer (true) or not (false) - * Needed because FW structures are big endian and decoding of - * these fields can be 8 bit or 16 bit based on command. Decoding - * is not easily understood without making a table of commands. - * So we will leave this up to the caller to read back the data - * in these cases. - * - * Communicates with the manageability block. On success return IXGBE_SUCCESS - * else return IXGBE_ERR_HOST_INTERFACE_COMMAND. - **/ -s32 ixgbe_host_interface_command(struct ixgbe_hw *hw, u32 *buffer, - u32 length, u32 timeout, bool return_data) -{ - u32 hicr, i, bi, fwsts; - u32 hdr_size = sizeof(struct ixgbe_hic_hdr); - u16 buf_len; - u16 dword_len; - - DEBUGFUNC("ixgbe_host_interface_command"); - - if (length == 0 || length > IXGBE_HI_MAX_BLOCK_BYTE_LENGTH) { - DEBUGOUT1("Buffer length failure buffersize=%d.\n", length); - return IXGBE_ERR_HOST_INTERFACE_COMMAND; - } - /* Set bit 9 of FWSTS clearing FW reset indication */ - fwsts = IXGBE_READ_REG(hw, IXGBE_FWSTS); - IXGBE_WRITE_REG(hw, IXGBE_FWSTS, fwsts | IXGBE_FWSTS_FWRI); - - /* Check that the host interface is enabled. */ - hicr = IXGBE_READ_REG(hw, IXGBE_HICR); - if ((hicr & IXGBE_HICR_EN) == 0) { - DEBUGOUT("IXGBE_HOST_EN bit disabled.\n"); - return IXGBE_ERR_HOST_INTERFACE_COMMAND; - } - - /* Calculate length in DWORDs. We must be DWORD aligned */ - if ((length % (sizeof(u32))) != 0) { - DEBUGOUT("Buffer length failure, not aligned to dword"); - return IXGBE_ERR_INVALID_ARGUMENT; - } - - dword_len = length >> 2; - - /* The device driver writes the relevant command block - * into the ram area. - */ - for (i = 0; i < dword_len; i++) - IXGBE_WRITE_REG_ARRAY(hw, IXGBE_FLEX_MNG, - i, IXGBE_CPU_TO_LE32(buffer[i])); - - /* Setting this bit tells the ARC that a new command is pending. */ - IXGBE_WRITE_REG(hw, IXGBE_HICR, hicr | IXGBE_HICR_C); - - for (i = 0; i < timeout; i++) { - hicr = IXGBE_READ_REG(hw, IXGBE_HICR); - if (!(hicr & IXGBE_HICR_C)) - break; - msec_delay(1); - } - - /* Check command completion */ - if ((timeout != 0 && i == timeout) || - !(IXGBE_READ_REG(hw, IXGBE_HICR) & IXGBE_HICR_SV)) { - ERROR_REPORT1(IXGBE_ERROR_CAUTION, - "Command has failed with no status valid.\n"); - return IXGBE_ERR_HOST_INTERFACE_COMMAND; - } - - if (!return_data) - return 0; - - /* Calculate length in DWORDs */ - dword_len = hdr_size >> 2; - - /* first pull in the header so we know the buffer length */ - for (bi = 0; bi < dword_len; bi++) { - buffer[bi] = IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG, bi); - IXGBE_LE32_TO_CPUS(&buffer[bi]); - } - - /* If there is any thing in data position pull it in */ - buf_len = ((struct ixgbe_hic_hdr *)buffer)->buf_len; - if (buf_len == 0) - return 0; - - if (length < buf_len + hdr_size) { - DEBUGOUT("Buffer not large enough for reply message.\n"); - return IXGBE_ERR_HOST_INTERFACE_COMMAND; - } - - /* Calculate length in DWORDs, add 3 for odd lengths */ - dword_len = (buf_len + 3) >> 2; - - /* Pull in the rest of the buffer (bi is where we left off) */ - for (; bi <= dword_len; bi++) { - buffer[bi] = IXGBE_READ_REG_ARRAY(hw, IXGBE_FLEX_MNG, bi); - IXGBE_LE32_TO_CPUS(&buffer[bi]); - } - - return 0; -} - -/** - * ixgbe_set_fw_drv_ver_generic - Sends driver version to firmware - * @hw: pointer to the HW structure - * @maj: driver version major number - * @min: driver version minor number - * @build: driver version build number - * @sub: driver version sub build number - * - * Sends driver version number to firmware through the manageability - * block. On success return IXGBE_SUCCESS - * else returns IXGBE_ERR_SWFW_SYNC when encountering an error acquiring - * semaphore or IXGBE_ERR_HOST_INTERFACE_COMMAND when command fails. - **/ -s32 ixgbe_set_fw_drv_ver_generic(struct ixgbe_hw *hw, u8 maj, u8 min, - u8 build, u8 sub) -{ - struct ixgbe_hic_drv_info fw_cmd; - int i; - s32 ret_val = IXGBE_SUCCESS; - - DEBUGFUNC("ixgbe_set_fw_drv_ver_generic"); - - if (hw->mac.ops.acquire_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM) - != IXGBE_SUCCESS) { - ret_val = IXGBE_ERR_SWFW_SYNC; - goto out; - } - - fw_cmd.hdr.cmd = FW_CEM_CMD_DRIVER_INFO; - fw_cmd.hdr.buf_len = FW_CEM_CMD_DRIVER_INFO_LEN; - fw_cmd.hdr.cmd_or_resp.cmd_resv = FW_CEM_CMD_RESERVED; - fw_cmd.port_num = (u8)hw->bus.func; - fw_cmd.ver_maj = maj; - fw_cmd.ver_min = min; - fw_cmd.ver_build = build; - fw_cmd.ver_sub = sub; - fw_cmd.hdr.checksum = 0; - fw_cmd.hdr.checksum = ixgbe_calculate_checksum((u8 *)&fw_cmd, - (FW_CEM_HDR_LEN + fw_cmd.hdr.buf_len)); - fw_cmd.pad = 0; - fw_cmd.pad2 = 0; - - for (i = 0; i <= FW_CEM_MAX_RETRIES; i++) { - ret_val = ixgbe_host_interface_command(hw, (u32 *)&fw_cmd, - sizeof(fw_cmd), - IXGBE_HI_COMMAND_TIMEOUT, - true); - if (ret_val != IXGBE_SUCCESS) - continue; - - if (fw_cmd.hdr.cmd_or_resp.ret_status == - FW_CEM_RESP_STATUS_SUCCESS) - ret_val = IXGBE_SUCCESS; - else - ret_val = IXGBE_ERR_HOST_INTERFACE_COMMAND; - - break; - } - - hw->mac.ops.release_swfw_sync(hw, IXGBE_GSSR_SW_MNG_SM); -out: - return ret_val; -} - -/** - * ixgbe_set_rxpba_generic - Initialize Rx packet buffer - * @hw: pointer to hardware structure - * @num_pb: number of packet buffers to allocate - * @headroom: reserve n KB of headroom - * @strategy: packet buffer allocation strategy - **/ -void ixgbe_set_rxpba_generic(struct ixgbe_hw *hw, int num_pb, u32 headroom, - int strategy) -{ - u32 pbsize = hw->mac.rx_pb_size; - int i = 0; - u32 rxpktsize, txpktsize, txpbthresh; - - /* Reserve headroom */ - pbsize -= headroom; - - if (!num_pb) - num_pb = 1; - - /* Divide remaining packet buffer space amongst the number of packet - * buffers requested using supplied strategy. - */ - switch (strategy) { - case PBA_STRATEGY_WEIGHTED: - /* ixgbe_dcb_pba_80_48 strategy weight first half of packet - * buffer with 5/8 of the packet buffer space. - */ - rxpktsize = (pbsize * 5) / (num_pb * 4); - pbsize -= rxpktsize * (num_pb / 2); - rxpktsize <<= IXGBE_RXPBSIZE_SHIFT; - for (; i < (num_pb / 2); i++) - IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize); - /* Fall through to configure remaining packet buffers */ - case PBA_STRATEGY_EQUAL: - rxpktsize = (pbsize / (num_pb - i)) << IXGBE_RXPBSIZE_SHIFT; - for (; i < num_pb; i++) - IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize); - break; - default: - break; - } - - /* Only support an equally distributed Tx packet buffer strategy. */ - txpktsize = IXGBE_TXPBSIZE_MAX / num_pb; - txpbthresh = (txpktsize / 1024) - IXGBE_TXPKT_SIZE_MAX; - for (i = 0; i < num_pb; i++) { - IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), txpktsize); - IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), txpbthresh); - } - - /* Clear unused TCs, if any, to zero buffer size*/ - for (; i < IXGBE_MAX_PB; i++) { - IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), 0); - IXGBE_WRITE_REG(hw, IXGBE_TXPBSIZE(i), 0); - IXGBE_WRITE_REG(hw, IXGBE_TXPBTHRESH(i), 0); - } -} - -/** - * ixgbe_clear_tx_pending - Clear pending TX work from the PCIe fifo - * @hw: pointer to the hardware structure - * - * The 82599 and x540 MACs can experience issues if TX work is still pending - * when a reset occurs. This function prevents this by flushing the PCIe - * buffers on the system. - **/ -void ixgbe_clear_tx_pending(struct ixgbe_hw *hw) -{ - u32 gcr_ext, hlreg0, i, poll; - u16 value; - - /* - * If double reset is not requested then all transactions should - * already be clear and as such there is no work to do - */ - if (!(hw->mac.flags & IXGBE_FLAGS_DOUBLE_RESET_REQUIRED)) - return; - - /* - * Set loopback enable to prevent any transmits from being sent - * should the link come up. This assumes that the RXCTRL.RXEN bit - * has already been cleared. - */ - hlreg0 = IXGBE_READ_REG(hw, IXGBE_HLREG0); - IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0 | IXGBE_HLREG0_LPBK); - - /* Wait for a last completion before clearing buffers */ - IXGBE_WRITE_FLUSH(hw); - msec_delay(3); - - /* - * Before proceeding, make sure that the PCIe block does not have - * transactions pending. - */ - poll = ixgbe_pcie_timeout_poll(hw); - for (i = 0; i < poll; i++) { - usec_delay(100); - value = IXGBE_READ_PCIE_WORD(hw, IXGBE_PCI_DEVICE_STATUS); - if (IXGBE_REMOVED(hw->hw_addr)) - goto out; - if (!(value & IXGBE_PCI_DEVICE_STATUS_TRANSACTION_PENDING)) - goto out; - } - -out: - /* initiate cleaning flow for buffers in the PCIe transaction layer */ - gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT); - IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, - gcr_ext | IXGBE_GCR_EXT_BUFFERS_CLEAR); - - /* Flush all writes and allow 20usec for all transactions to clear */ - IXGBE_WRITE_FLUSH(hw); - usec_delay(20); - - /* restore previous register values */ - IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext); - IXGBE_WRITE_REG(hw, IXGBE_HLREG0, hlreg0); -} - -STATIC const u8 ixgbe_emc_temp_data[4] = { - IXGBE_EMC_INTERNAL_DATA, - IXGBE_EMC_DIODE1_DATA, - IXGBE_EMC_DIODE2_DATA, - IXGBE_EMC_DIODE3_DATA -}; -STATIC const u8 ixgbe_emc_therm_limit[4] = { - IXGBE_EMC_INTERNAL_THERM_LIMIT, - IXGBE_EMC_DIODE1_THERM_LIMIT, - IXGBE_EMC_DIODE2_THERM_LIMIT, - IXGBE_EMC_DIODE3_THERM_LIMIT -}; - -/** - * ixgbe_get_thermal_sensor_data - Gathers thermal sensor data - * @hw: pointer to hardware structure - * @data: pointer to the thermal sensor data structure - * - * Returns the thermal sensor data structure - **/ -s32 ixgbe_get_thermal_sensor_data_generic(struct ixgbe_hw *hw) -{ - s32 status = IXGBE_SUCCESS; - u16 ets_offset; - u16 ets_cfg; - u16 ets_sensor; - u8 num_sensors; - u8 sensor_index; - u8 sensor_location; - u8 i; - struct ixgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data; - - DEBUGFUNC("ixgbe_get_thermal_sensor_data_generic"); - - /* Only support thermal sensors attached to 82599 physical port 0 */ - if ((hw->mac.type != ixgbe_mac_82599EB) || - (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)) { - status = IXGBE_NOT_IMPLEMENTED; - goto out; - } - - status = hw->eeprom.ops.read(hw, IXGBE_ETS_CFG, &ets_offset); - if (status) - goto out; - - if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF)) { - status = IXGBE_NOT_IMPLEMENTED; - goto out; - } - - status = hw->eeprom.ops.read(hw, ets_offset, &ets_cfg); - if (status) - goto out; - - if (((ets_cfg & IXGBE_ETS_TYPE_MASK) >> IXGBE_ETS_TYPE_SHIFT) - != IXGBE_ETS_TYPE_EMC) { - status = IXGBE_NOT_IMPLEMENTED; - goto out; - } - - num_sensors = (ets_cfg & IXGBE_ETS_NUM_SENSORS_MASK); - if (num_sensors > IXGBE_MAX_SENSORS) - num_sensors = IXGBE_MAX_SENSORS; - - for (i = 0; i < num_sensors; i++) { - status = hw->eeprom.ops.read(hw, (ets_offset + 1 + i), - &ets_sensor); - if (status) - goto out; - - sensor_index = ((ets_sensor & IXGBE_ETS_DATA_INDEX_MASK) >> - IXGBE_ETS_DATA_INDEX_SHIFT); - sensor_location = ((ets_sensor & IXGBE_ETS_DATA_LOC_MASK) >> - IXGBE_ETS_DATA_LOC_SHIFT); - - if (sensor_location != 0) { - status = hw->phy.ops.read_i2c_byte(hw, - ixgbe_emc_temp_data[sensor_index], - IXGBE_I2C_THERMAL_SENSOR_ADDR, - &data->sensor[i].temp); - if (status) - goto out; - } - } -out: - return status; -} - -/** - * ixgbe_init_thermal_sensor_thresh_generic - Inits thermal sensor thresholds - * @hw: pointer to hardware structure - * - * Inits the thermal sensor thresholds according to the NVM map - * and save off the threshold and location values into mac.thermal_sensor_data - **/ -s32 ixgbe_init_thermal_sensor_thresh_generic(struct ixgbe_hw *hw) -{ - s32 status = IXGBE_SUCCESS; - u16 offset; - u16 ets_offset; - u16 ets_cfg; - u16 ets_sensor; - u8 low_thresh_delta; - u8 num_sensors; - u8 sensor_index; - u8 sensor_location; - u8 therm_limit; - u8 i; - struct ixgbe_thermal_sensor_data *data = &hw->mac.thermal_sensor_data; - - DEBUGFUNC("ixgbe_init_thermal_sensor_thresh_generic"); - - memset(data, 0, sizeof(struct ixgbe_thermal_sensor_data)); - - /* Only support thermal sensors attached to 82599 physical port 0 */ - if ((hw->mac.type != ixgbe_mac_82599EB) || - (IXGBE_READ_REG(hw, IXGBE_STATUS) & IXGBE_STATUS_LAN_ID_1)) - return IXGBE_NOT_IMPLEMENTED; - - offset = IXGBE_ETS_CFG; - if (hw->eeprom.ops.read(hw, offset, &ets_offset)) - goto eeprom_err; - if ((ets_offset == 0x0000) || (ets_offset == 0xFFFF)) - return IXGBE_NOT_IMPLEMENTED; - - offset = ets_offset; - if (hw->eeprom.ops.read(hw, offset, &ets_cfg)) - goto eeprom_err; - if (((ets_cfg & IXGBE_ETS_TYPE_MASK) >> IXGBE_ETS_TYPE_SHIFT) - != IXGBE_ETS_TYPE_EMC) - return IXGBE_NOT_IMPLEMENTED; - - low_thresh_delta = ((ets_cfg & IXGBE_ETS_LTHRES_DELTA_MASK) >> - IXGBE_ETS_LTHRES_DELTA_SHIFT); - num_sensors = (ets_cfg & IXGBE_ETS_NUM_SENSORS_MASK); - - for (i = 0; i < num_sensors; i++) { - offset = ets_offset + 1 + i; - if (hw->eeprom.ops.read(hw, offset, &ets_sensor)) { - ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE, - "eeprom read at offset %d failed", - offset); - continue; - } - sensor_index = ((ets_sensor & IXGBE_ETS_DATA_INDEX_MASK) >> - IXGBE_ETS_DATA_INDEX_SHIFT); - sensor_location = ((ets_sensor & IXGBE_ETS_DATA_LOC_MASK) >> - IXGBE_ETS_DATA_LOC_SHIFT); - therm_limit = ets_sensor & IXGBE_ETS_DATA_HTHRESH_MASK; - - hw->phy.ops.write_i2c_byte(hw, - ixgbe_emc_therm_limit[sensor_index], - IXGBE_I2C_THERMAL_SENSOR_ADDR, therm_limit); - - if ((i < IXGBE_MAX_SENSORS) && (sensor_location != 0)) { - data->sensor[i].location = sensor_location; - data->sensor[i].caution_thresh = therm_limit; - data->sensor[i].max_op_thresh = therm_limit - - low_thresh_delta; - } - } - return status; - -eeprom_err: - ERROR_REPORT2(IXGBE_ERROR_INVALID_STATE, - "eeprom read at offset %d failed", offset); - return IXGBE_NOT_IMPLEMENTED; -} - - -/** - * ixgbe_dcb_get_rtrup2tc_generic - read rtrup2tc reg - * @hw: pointer to hardware structure - * @map: pointer to u8 arr for returning map - * - * Read the rtrup2tc HW register and resolve its content into map - **/ -void ixgbe_dcb_get_rtrup2tc_generic(struct ixgbe_hw *hw, u8 *map) -{ - u32 reg, i; - - reg = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC); - for (i = 0; i < IXGBE_DCB_MAX_USER_PRIORITY; i++) - map[i] = IXGBE_RTRUP2TC_UP_MASK & - (reg >> (i * IXGBE_RTRUP2TC_UP_SHIFT)); - return; -} - -void ixgbe_disable_rx_generic(struct ixgbe_hw *hw) -{ - u32 pfdtxgswc; - u32 rxctrl; - - rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); - if (rxctrl & IXGBE_RXCTRL_RXEN) { - if (hw->mac.type != ixgbe_mac_82598EB) { - pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC); - if (pfdtxgswc & IXGBE_PFDTXGSWC_VT_LBEN) { - pfdtxgswc &= ~IXGBE_PFDTXGSWC_VT_LBEN; - IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc); - hw->mac.set_lben = true; - } else { - hw->mac.set_lben = false; - } - } - rxctrl &= ~IXGBE_RXCTRL_RXEN; - IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, rxctrl); - } -} - -void ixgbe_enable_rx_generic(struct ixgbe_hw *hw) -{ - u32 pfdtxgswc; - u32 rxctrl; - - rxctrl = IXGBE_READ_REG(hw, IXGBE_RXCTRL); - IXGBE_WRITE_REG(hw, IXGBE_RXCTRL, (rxctrl | IXGBE_RXCTRL_RXEN)); - - if (hw->mac.type != ixgbe_mac_82598EB) { - if (hw->mac.set_lben) { - pfdtxgswc = IXGBE_READ_REG(hw, IXGBE_PFDTXGSWC); - pfdtxgswc |= IXGBE_PFDTXGSWC_VT_LBEN; - IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, pfdtxgswc); - hw->mac.set_lben = false; - } - } -} - -/** - * ixgbe_mng_present - returns true when management capability is present - * @hw: pointer to hardware structure - */ -bool ixgbe_mng_present(struct ixgbe_hw *hw) -{ - u32 fwsm; - - if (hw->mac.type < ixgbe_mac_82599EB) - return false; - - fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM); - fwsm &= IXGBE_FWSM_MODE_MASK; - return fwsm == IXGBE_FWSM_FW_MODE_PT; -} - -/** - * ixgbe_mng_enabled - Is the manageability engine enabled? - * @hw: pointer to hardware structure - * - * Returns true if the manageability engine is enabled. - **/ -bool ixgbe_mng_enabled(struct ixgbe_hw *hw) -{ - u32 fwsm, manc, factps; - - fwsm = IXGBE_READ_REG(hw, IXGBE_FWSM); - if ((fwsm & IXGBE_FWSM_MODE_MASK) != IXGBE_FWSM_FW_MODE_PT) - return false; - - manc = IXGBE_READ_REG(hw, IXGBE_MANC); - if (!(manc & IXGBE_MANC_RCV_TCO_EN)) - return false; - - if (hw->mac.type <= ixgbe_mac_X540) { - factps = IXGBE_READ_REG(hw, IXGBE_FACTPS); - if (factps & IXGBE_FACTPS_MNGCG) - return false; - } - - return true; -} - -/** - * ixgbe_setup_mac_link_multispeed_fiber - Set MAC link speed - * @hw: pointer to hardware structure - * @speed: new link speed - * @autoneg_wait_to_complete: true when waiting for completion is needed - * - * Set the link speed in the MAC and/or PHY register and restarts link. - **/ -s32 ixgbe_setup_mac_link_multispeed_fiber(struct ixgbe_hw *hw, - ixgbe_link_speed speed, - bool autoneg_wait_to_complete) -{ - ixgbe_link_speed link_speed = IXGBE_LINK_SPEED_UNKNOWN; - ixgbe_link_speed highest_link_speed = IXGBE_LINK_SPEED_UNKNOWN; - s32 status = IXGBE_SUCCESS; - u32 speedcnt = 0; - u32 i = 0; - bool autoneg, link_up = false; - - DEBUGFUNC("ixgbe_setup_mac_link_multispeed_fiber"); - - /* Mask off requested but non-supported speeds */ - status = ixgbe_get_link_capabilities(hw, &link_speed, &autoneg); - if (status != IXGBE_SUCCESS) - return status; - - speed &= link_speed; - - /* Try each speed one by one, highest priority first. We do this in - * software because 10Gb fiber doesn't support speed autonegotiation. - */ - if (speed & IXGBE_LINK_SPEED_10GB_FULL) { - speedcnt++; - highest_link_speed = IXGBE_LINK_SPEED_10GB_FULL; - - /* If we already have link at this speed, just jump out */ - status = ixgbe_check_link(hw, &link_speed, &link_up, false); - if (status != IXGBE_SUCCESS) - return status; - - if ((link_speed == IXGBE_LINK_SPEED_10GB_FULL) && link_up) - goto out; - - /* Set the module link speed */ - switch (hw->phy.media_type) { - case ixgbe_media_type_fiber: - ixgbe_set_rate_select_speed(hw, - IXGBE_LINK_SPEED_10GB_FULL); - break; - case ixgbe_media_type_fiber_qsfp: - /* QSFP module automatically detects MAC link speed */ - break; - default: - DEBUGOUT("Unexpected media type.\n"); - break; - } - - /* Allow module to change analog characteristics (1G->10G) */ - msec_delay(40); - - status = ixgbe_setup_mac_link(hw, - IXGBE_LINK_SPEED_10GB_FULL, - autoneg_wait_to_complete); - if (status != IXGBE_SUCCESS) - return status; - - /* Flap the Tx laser if it has not already been done */ - ixgbe_flap_tx_laser(hw); - - /* Wait for the controller to acquire link. Per IEEE 802.3ap, - * Section 73.10.2, we may have to wait up to 500ms if KR is - * attempted. 82599 uses the same timing for 10g SFI. - */ - for (i = 0; i < 5; i++) { - /* Wait for the link partner to also set speed */ - msec_delay(100); - - /* If we have link, just jump out */ - status = ixgbe_check_link(hw, &link_speed, - &link_up, false); - if (status != IXGBE_SUCCESS) - return status; - - if (link_up) - goto out; - } - } - - if (speed & IXGBE_LINK_SPEED_1GB_FULL) { - speedcnt++; - if (highest_link_speed == IXGBE_LINK_SPEED_UNKNOWN) - highest_link_speed = IXGBE_LINK_SPEED_1GB_FULL; - - /* If we already have link at this speed, just jump out */ - status = ixgbe_check_link(hw, &link_speed, &link_up, false); - if (status != IXGBE_SUCCESS) - return status; - - if ((link_speed == IXGBE_LINK_SPEED_1GB_FULL) && link_up) - goto out; - - /* Set the module link speed */ - switch (hw->phy.media_type) { - case ixgbe_media_type_fiber: - ixgbe_set_rate_select_speed(hw, - IXGBE_LINK_SPEED_1GB_FULL); - break; - case ixgbe_media_type_fiber_qsfp: - /* QSFP module automatically detects link speed */ - break; - default: - DEBUGOUT("Unexpected media type.\n"); - break; - } - - /* Allow module to change analog characteristics (10G->1G) */ - msec_delay(40); - - status = ixgbe_setup_mac_link(hw, - IXGBE_LINK_SPEED_1GB_FULL, - autoneg_wait_to_complete); - if (status != IXGBE_SUCCESS) - return status; - - /* Flap the Tx laser if it has not already been done */ - ixgbe_flap_tx_laser(hw); - - /* Wait for the link partner to also set speed */ - msec_delay(100); - - /* If we have link, just jump out */ - status = ixgbe_check_link(hw, &link_speed, &link_up, false); - if (status != IXGBE_SUCCESS) - return status; - - if (link_up) - goto out; - } - - /* We didn't get link. Configure back to the highest speed we tried, - * (if there was more than one). We call ourselves back with just the - * single highest speed that the user requested. - */ - if (speedcnt > 1) - status = ixgbe_setup_mac_link_multispeed_fiber(hw, - highest_link_speed, - autoneg_wait_to_complete); - -out: - /* Set autoneg_advertised value based on input link speed */ - hw->phy.autoneg_advertised = 0; - - if (speed & IXGBE_LINK_SPEED_10GB_FULL) - hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_10GB_FULL; - - if (speed & IXGBE_LINK_SPEED_1GB_FULL) - hw->phy.autoneg_advertised |= IXGBE_LINK_SPEED_1GB_FULL; - - return status; -} - -/** - * ixgbe_set_soft_rate_select_speed - Set module link speed - * @hw: pointer to hardware structure - * @speed: link speed to set - * - * Set module link speed via the soft rate select. - */ -void ixgbe_set_soft_rate_select_speed(struct ixgbe_hw *hw, - ixgbe_link_speed speed) -{ - s32 status; - u8 rs, eeprom_data; - - switch (speed) { - case IXGBE_LINK_SPEED_10GB_FULL: - /* one bit mask same as setting on */ - rs = IXGBE_SFF_SOFT_RS_SELECT_10G; - break; - case IXGBE_LINK_SPEED_1GB_FULL: - rs = IXGBE_SFF_SOFT_RS_SELECT_1G; - break; - default: - DEBUGOUT("Invalid fixed module speed\n"); - return; - } - - /* Set RS0 */ - status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB, - IXGBE_I2C_EEPROM_DEV_ADDR2, - &eeprom_data); - if (status) { - DEBUGOUT("Failed to read Rx Rate Select RS0\n"); - goto out; - } - - eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) | rs; - - status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_OSCB, - IXGBE_I2C_EEPROM_DEV_ADDR2, - eeprom_data); - if (status) { - DEBUGOUT("Failed to write Rx Rate Select RS0\n"); - goto out; - } - - /* Set RS1 */ - status = hw->phy.ops.read_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB, - IXGBE_I2C_EEPROM_DEV_ADDR2, - &eeprom_data); - if (status) { - DEBUGOUT("Failed to read Rx Rate Select RS1\n"); - goto out; - } - - eeprom_data = (eeprom_data & ~IXGBE_SFF_SOFT_RS_SELECT_MASK) | rs; - - status = hw->phy.ops.write_i2c_byte(hw, IXGBE_SFF_SFF_8472_ESCB, - IXGBE_I2C_EEPROM_DEV_ADDR2, - eeprom_data); - if (status) { - DEBUGOUT("Failed to write Rx Rate Select RS1\n"); - goto out; - } -out: - return; -} |