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fuchsia / fuchsia / 83854f31e881f0f9aa2bd848a84a94e01fb09dd9 / . / zircon / third_party / dev / ethernet / e1000 / if_em.c
blob: ffd327e88f2085c6a4d616c1f3f99a2d6373cbb1 [file] [log] [blame]
/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2016 Nicole Graziano <nicole@nextbsd.org>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
/* $FreeBSD$ */
#include "if_em.h"
#include <sys/sbuf.h>
#include <machine/_inttypes.h>
#define em_mac_min e1000_82547
#define igb_mac_min e1000_82575
/*********************************************************************
* Driver version:
*********************************************************************/
char em_driver_version[] = "7.6.1-k";
/*********************************************************************
* PCI Device ID Table
*
* Used by probe to select devices to load on
* Last field stores an index into e1000_strings
* Last entry must be all 0s
*
* { Vendor ID, Device ID, SubVendor ID, SubDevice ID, String Index }
*********************************************************************/
static pci_vendor_info_t em_vendor_info_array[] =
{
/* Intel(R) PRO/1000 Network Connection - Legacy em*/
PVID(0x8086, E1000_DEV_ID_82540EM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82540EM_LOM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82540EP, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82540EP_LOM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82540EP_LP, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82541EI, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82541ER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82541ER_LOM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82541EI_MOBILE, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82541GI, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82541GI_LF, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82541GI_MOBILE, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82542, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82543GC_FIBER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82543GC_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82544EI_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82544EI_FIBER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82544GC_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82544GC_LOM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82545EM_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82545EM_FIBER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82545GM_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82545GM_FIBER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82545GM_SERDES, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82546EB_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82546EB_FIBER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82546EB_QUAD_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82546GB_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82546GB_FIBER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82546GB_SERDES, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82546GB_PCIE, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82546GB_QUAD_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82547EI, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82547EI_MOBILE, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82547GI, "Intel(R) PRO/1000 Network Connection"),
/* Intel(R) PRO/1000 Network Connection - em */
PVID(0x8086, E1000_DEV_ID_82571EB_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82571EB_FIBER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82571EB_SERDES, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82571EB_SERDES_DUAL, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82571EB_SERDES_QUAD, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82571EB_QUAD_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82571EB_QUAD_COPPER_LP, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82571EB_QUAD_FIBER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82571PT_QUAD_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82572EI, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82572EI_COPPER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82572EI_FIBER, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82572EI_SERDES, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82573E, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82573E_IAMT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82573L, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82583V, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_80003ES2LAN_COPPER_SPT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_80003ES2LAN_SERDES_SPT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_80003ES2LAN_COPPER_DPT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_80003ES2LAN_SERDES_DPT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH8_IGP_M_AMT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH8_IGP_AMT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH8_IGP_C, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH8_IFE, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH8_IFE_GT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH8_IFE_G, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH8_IGP_M, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH8_82567V_3, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH9_IGP_M_AMT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH9_IGP_AMT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH9_IGP_C, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH9_IGP_M, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH9_IGP_M_V, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH9_IFE, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH9_IFE_GT, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH9_IFE_G, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH9_BM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82574L, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_82574LA, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH10_R_BM_LM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH10_R_BM_LF, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH10_R_BM_V, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH10_D_BM_LM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH10_D_BM_LF, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_ICH10_D_BM_V, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_M_HV_LM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_M_HV_LC, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_D_HV_DM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_D_HV_DC, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH2_LV_LM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH2_LV_V, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_LPT_I217_LM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_LPT_I217_V, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_LPTLP_I218_LM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_LPTLP_I218_V, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_I218_LM2, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_I218_V2, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_I218_LM3, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_I218_V3, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_LM, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_V, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_LM2, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_V2, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_LBG_I219_LM3, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_LM4, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_V4, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_LM5, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_SPT_I219_V5, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_CNP_I219_LM6, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_CNP_I219_V6, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_CNP_I219_LM7, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_CNP_I219_V7, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_ICP_I219_LM8, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_ICP_I219_V8, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_ICP_I219_LM9, "Intel(R) PRO/1000 Network Connection"),
PVID(0x8086, E1000_DEV_ID_PCH_ICP_I219_V9, "Intel(R) PRO/1000 Network Connection"),
/* required last entry */
PVID_END
};
static pci_vendor_info_t igb_vendor_info_array[] =
{
/* Intel(R) PRO/1000 Network Connection - igb */
PVID(0x8086, E1000_DEV_ID_82575EB_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82575EB_FIBER_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82575GB_QUAD_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82576, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82576_NS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82576_NS_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82576_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82576_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82576_SERDES_QUAD, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82576_QUAD_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82576_QUAD_COPPER_ET2, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82576_VF, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82580_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82580_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82580_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82580_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82580_COPPER_DUAL, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_82580_QUAD_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_DH89XXCC_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_DH89XXCC_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_DH89XXCC_SFP, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_DH89XXCC_BACKPLANE, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I350_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I350_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I350_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I350_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I350_VF, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I210_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I210_COPPER_IT, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I210_COPPER_OEM1, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I210_COPPER_FLASHLESS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I210_SERDES_FLASHLESS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I210_FIBER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I210_SERDES, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I210_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I211_COPPER, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I354_BACKPLANE_1GBPS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I354_BACKPLANE_2_5GBPS, "Intel(R) PRO/1000 PCI-Express Network Driver"),
PVID(0x8086, E1000_DEV_ID_I354_SGMII, "Intel(R) PRO/1000 PCI-Express Network Driver"),
/* required last entry */
PVID_END
};
/*********************************************************************
* Function prototypes
*********************************************************************/
static void *em_register(device_t dev);
static void *igb_register(device_t dev);
static int em_if_attach_pre(if_ctx_t ctx);
static int em_if_attach_post(if_ctx_t ctx);
static int em_if_detach(if_ctx_t ctx);
static int em_if_shutdown(if_ctx_t ctx);
static int em_if_suspend(if_ctx_t ctx);
static int em_if_resume(if_ctx_t ctx);
static int em_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int ntxqs, int ntxqsets);
static int em_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nrxqs, int nrxqsets);
static void em_if_queues_free(if_ctx_t ctx);
static uint64_t em_if_get_counter(if_ctx_t, ift_counter);
static void em_if_init(if_ctx_t ctx);
static void em_if_stop(if_ctx_t ctx);
static void em_if_media_status(if_ctx_t, struct ifmediareq *);
static int em_if_media_change(if_ctx_t ctx);
static int em_if_mtu_set(if_ctx_t ctx, uint32_t mtu);
static void em_if_timer(if_ctx_t ctx, uint16_t qid);
static void em_if_vlan_register(if_ctx_t ctx, u16 vtag);
static void em_if_vlan_unregister(if_ctx_t ctx, u16 vtag);
static void em_identify_hardware(if_ctx_t ctx);
static int em_allocate_pci_resources(if_ctx_t ctx);
static void em_free_pci_resources(if_ctx_t ctx);
static void em_reset(if_ctx_t ctx);
static int em_setup_interface(if_ctx_t ctx);
static int em_setup_msix(if_ctx_t ctx);
static void em_initialize_transmit_unit(if_ctx_t ctx);
static void em_initialize_receive_unit(if_ctx_t ctx);
static void em_if_enable_intr(if_ctx_t ctx);
static void em_if_disable_intr(if_ctx_t ctx);
static int em_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid);
static int em_if_tx_queue_intr_enable(if_ctx_t ctx, uint16_t txqid);
static void em_if_multi_set(if_ctx_t ctx);
static void em_if_update_admin_status(if_ctx_t ctx);
static void em_if_debug(if_ctx_t ctx);
static void em_update_stats_counters(struct adapter *);
static void em_add_hw_stats(struct adapter *adapter);
static int em_if_set_promisc(if_ctx_t ctx, int flags);
static void em_setup_vlan_hw_support(struct adapter *);
static int em_sysctl_nvm_info(SYSCTL_HANDLER_ARGS);
static void em_print_nvm_info(struct adapter *);
static int em_sysctl_debug_info(SYSCTL_HANDLER_ARGS);
static int em_get_rs(SYSCTL_HANDLER_ARGS);
static void em_print_debug_info(struct adapter *);
static int em_is_valid_ether_addr(u8 *);
static int em_sysctl_int_delay(SYSCTL_HANDLER_ARGS);
static void em_add_int_delay_sysctl(struct adapter *, const char *,
const char *, struct em_int_delay_info *, int, int);
/* Management and WOL Support */
static void em_init_manageability(struct adapter *);
static void em_release_manageability(struct adapter *);
static void em_get_hw_control(struct adapter *);
static void em_release_hw_control(struct adapter *);
static void em_get_wakeup(if_ctx_t ctx);
static void em_enable_wakeup(if_ctx_t ctx);
static int em_enable_phy_wakeup(struct adapter *);
static void em_disable_aspm(struct adapter *);
int em_intr(void *arg);
static void em_disable_promisc(if_ctx_t ctx);
/* MSIX handlers */
static int em_if_msix_intr_assign(if_ctx_t, int);
static int em_msix_link(void *);
static void em_handle_link(void *context);
static void em_enable_vectors_82574(if_ctx_t);
static int em_set_flowcntl(SYSCTL_HANDLER_ARGS);
static int em_sysctl_eee(SYSCTL_HANDLER_ARGS);
static void em_if_led_func(if_ctx_t ctx, int onoff);
static int em_get_regs(SYSCTL_HANDLER_ARGS);
static void lem_smartspeed(struct adapter *adapter);
static void igb_configure_queues(struct adapter *adapter);
/*********************************************************************
* FreeBSD Device Interface Entry Points
*********************************************************************/
static device_method_t em_methods[] = {
/* Device interface */
DEVMETHOD(device_register, em_register),
DEVMETHOD(device_probe, iflib_device_probe),
DEVMETHOD(device_attach, iflib_device_attach),
DEVMETHOD(device_detach, iflib_device_detach),
DEVMETHOD(device_shutdown, iflib_device_shutdown),
DEVMETHOD(device_suspend, iflib_device_suspend),
DEVMETHOD(device_resume, iflib_device_resume),
DEVMETHOD_END
};
static device_method_t igb_methods[] = {
/* Device interface */
DEVMETHOD(device_register, igb_register),
DEVMETHOD(device_probe, iflib_device_probe),
DEVMETHOD(device_attach, iflib_device_attach),
DEVMETHOD(device_detach, iflib_device_detach),
DEVMETHOD(device_shutdown, iflib_device_shutdown),
DEVMETHOD(device_suspend, iflib_device_suspend),
DEVMETHOD(device_resume, iflib_device_resume),
DEVMETHOD_END
};
static driver_t em_driver = {
"em", em_methods, sizeof(struct adapter),
};
static devclass_t em_devclass;
DRIVER_MODULE(em, pci, em_driver, em_devclass, 0, 0);
MODULE_DEPEND(em, pci, 1, 1, 1);
MODULE_DEPEND(em, ether, 1, 1, 1);
MODULE_DEPEND(em, iflib, 1, 1, 1);
IFLIB_PNP_INFO(pci, em, em_vendor_info_array);
static driver_t igb_driver = {
"igb", igb_methods, sizeof(struct adapter),
};
static devclass_t igb_devclass;
DRIVER_MODULE(igb, pci, igb_driver, igb_devclass, 0, 0);
MODULE_DEPEND(igb, pci, 1, 1, 1);
MODULE_DEPEND(igb, ether, 1, 1, 1);
MODULE_DEPEND(igb, iflib, 1, 1, 1);
IFLIB_PNP_INFO(pci, igb, igb_vendor_info_array);
static device_method_t em_if_methods[] = {
DEVMETHOD(ifdi_attach_pre, em_if_attach_pre),
DEVMETHOD(ifdi_attach_post, em_if_attach_post),
DEVMETHOD(ifdi_detach, em_if_detach),
DEVMETHOD(ifdi_shutdown, em_if_shutdown),
DEVMETHOD(ifdi_suspend, em_if_suspend),
DEVMETHOD(ifdi_resume, em_if_resume),
DEVMETHOD(ifdi_init, em_if_init),
DEVMETHOD(ifdi_stop, em_if_stop),
DEVMETHOD(ifdi_msix_intr_assign, em_if_msix_intr_assign),
DEVMETHOD(ifdi_intr_enable, em_if_enable_intr),
DEVMETHOD(ifdi_intr_disable, em_if_disable_intr),
DEVMETHOD(ifdi_tx_queues_alloc, em_if_tx_queues_alloc),
DEVMETHOD(ifdi_rx_queues_alloc, em_if_rx_queues_alloc),
DEVMETHOD(ifdi_queues_free, em_if_queues_free),
DEVMETHOD(ifdi_update_admin_status, em_if_update_admin_status),
DEVMETHOD(ifdi_multi_set, em_if_multi_set),
DEVMETHOD(ifdi_media_status, em_if_media_status),
DEVMETHOD(ifdi_media_change, em_if_media_change),
DEVMETHOD(ifdi_mtu_set, em_if_mtu_set),
DEVMETHOD(ifdi_promisc_set, em_if_set_promisc),
DEVMETHOD(ifdi_timer, em_if_timer),
DEVMETHOD(ifdi_vlan_register, em_if_vlan_register),
DEVMETHOD(ifdi_vlan_unregister, em_if_vlan_unregister),
DEVMETHOD(ifdi_get_counter, em_if_get_counter),
DEVMETHOD(ifdi_led_func, em_if_led_func),
DEVMETHOD(ifdi_rx_queue_intr_enable, em_if_rx_queue_intr_enable),
DEVMETHOD(ifdi_tx_queue_intr_enable, em_if_tx_queue_intr_enable),
DEVMETHOD(ifdi_debug, em_if_debug),
DEVMETHOD_END
};
/*
* note that if (adapter->msix_mem) is replaced by:
* if (adapter->intr_type == IFLIB_INTR_MSIX)
*/
static driver_t em_if_driver = {
"em_if", em_if_methods, sizeof(struct adapter)
};
/*********************************************************************
* Tunable default values.
*********************************************************************/
#define EM_TICKS_TO_USECS(ticks) ((1024 * (ticks) + 500) / 1000)
#define EM_USECS_TO_TICKS(usecs) ((1000 * (usecs) + 512) / 1024)
#define M_TSO_LEN 66
#define MAX_INTS_PER_SEC 8000
#define DEFAULT_ITR (1000000000/(MAX_INTS_PER_SEC * 256))
/* Allow common code without TSO */
#ifndef CSUM_TSO
#define CSUM_TSO 0
#endif
#define TSO_WORKAROUND 4
static SYSCTL_NODE(_hw, OID_AUTO, em, CTLFLAG_RD, 0, "EM driver parameters");
static int em_disable_crc_stripping = 0;
SYSCTL_INT(_hw_em, OID_AUTO, disable_crc_stripping, CTLFLAG_RDTUN,
&em_disable_crc_stripping, 0, "Disable CRC Stripping");
static int em_tx_int_delay_dflt = EM_TICKS_TO_USECS(EM_TIDV);
static int em_rx_int_delay_dflt = EM_TICKS_TO_USECS(EM_RDTR);
SYSCTL_INT(_hw_em, OID_AUTO, tx_int_delay, CTLFLAG_RDTUN, &em_tx_int_delay_dflt,
0, "Default transmit interrupt delay in usecs");
SYSCTL_INT(_hw_em, OID_AUTO, rx_int_delay, CTLFLAG_RDTUN, &em_rx_int_delay_dflt,
0, "Default receive interrupt delay in usecs");
static int em_tx_abs_int_delay_dflt = EM_TICKS_TO_USECS(EM_TADV);
static int em_rx_abs_int_delay_dflt = EM_TICKS_TO_USECS(EM_RADV);
SYSCTL_INT(_hw_em, OID_AUTO, tx_abs_int_delay, CTLFLAG_RDTUN,
&em_tx_abs_int_delay_dflt, 0,
"Default transmit interrupt delay limit in usecs");
SYSCTL_INT(_hw_em, OID_AUTO, rx_abs_int_delay, CTLFLAG_RDTUN,
&em_rx_abs_int_delay_dflt, 0,
"Default receive interrupt delay limit in usecs");
static int em_smart_pwr_down = FALSE;
SYSCTL_INT(_hw_em, OID_AUTO, smart_pwr_down, CTLFLAG_RDTUN, &em_smart_pwr_down,
0, "Set to true to leave smart power down enabled on newer adapters");
/* Controls whether promiscuous also shows bad packets */
static int em_debug_sbp = TRUE;
SYSCTL_INT(_hw_em, OID_AUTO, sbp, CTLFLAG_RDTUN, &em_debug_sbp, 0,
"Show bad packets in promiscuous mode");
/* How many packets rxeof tries to clean at a time */
static int em_rx_process_limit = 100;
SYSCTL_INT(_hw_em, OID_AUTO, rx_process_limit, CTLFLAG_RDTUN,
&em_rx_process_limit, 0,
"Maximum number of received packets to process "
"at a time, -1 means unlimited");
/* Energy efficient ethernet - default to OFF */
static int eee_setting = 1;
SYSCTL_INT(_hw_em, OID_AUTO, eee_setting, CTLFLAG_RDTUN, &eee_setting, 0,
"Enable Energy Efficient Ethernet");
/*
** Tuneable Interrupt rate
*/
static int em_max_interrupt_rate = 8000;
SYSCTL_INT(_hw_em, OID_AUTO, max_interrupt_rate, CTLFLAG_RDTUN,
&em_max_interrupt_rate, 0, "Maximum interrupts per second");
/* Global used in WOL setup with multiport cards */
static int global_quad_port_a = 0;
extern struct if_txrx igb_txrx;
extern struct if_txrx em_txrx;
extern struct if_txrx lem_txrx;
static struct if_shared_ctx em_sctx_init = {
.isc_magic = IFLIB_MAGIC,
.isc_q_align = PAGE_SIZE,
.isc_tx_maxsize = EM_TSO_SIZE,
.isc_tx_maxsegsize = PAGE_SIZE,
.isc_rx_maxsize = MJUM9BYTES,
.isc_rx_nsegments = 1,
.isc_rx_maxsegsize = MJUM9BYTES,
.isc_nfl = 1,
.isc_nrxqs = 1,
.isc_ntxqs = 1,
.isc_admin_intrcnt = 1,
.isc_vendor_info = em_vendor_info_array,
.isc_driver_version = em_driver_version,
.isc_driver = &em_if_driver,
.isc_flags = IFLIB_NEED_SCRATCH | IFLIB_TSO_INIT_IP | IFLIB_NEED_ZERO_CSUM,
.isc_nrxd_min = {EM_MIN_RXD},
.isc_ntxd_min = {EM_MIN_TXD},
.isc_nrxd_max = {EM_MAX_RXD},
.isc_ntxd_max = {EM_MAX_TXD},
.isc_nrxd_default = {EM_DEFAULT_RXD},
.isc_ntxd_default = {EM_DEFAULT_TXD},
};
if_shared_ctx_t em_sctx = &em_sctx_init;
static struct if_shared_ctx igb_sctx_init = {
.isc_magic = IFLIB_MAGIC,
.isc_q_align = PAGE_SIZE,
.isc_tx_maxsize = EM_TSO_SIZE,
.isc_tx_maxsegsize = PAGE_SIZE,
.isc_rx_maxsize = MJUM9BYTES,
.isc_rx_nsegments = 1,
.isc_rx_maxsegsize = MJUM9BYTES,
.isc_nfl = 1,
.isc_nrxqs = 1,
.isc_ntxqs = 1,
.isc_admin_intrcnt = 1,
.isc_vendor_info = igb_vendor_info_array,
.isc_driver_version = em_driver_version,
.isc_driver = &em_if_driver,
.isc_flags = IFLIB_NEED_SCRATCH | IFLIB_TSO_INIT_IP | IFLIB_NEED_ZERO_CSUM,
.isc_nrxd_min = {EM_MIN_RXD},
.isc_ntxd_min = {EM_MIN_TXD},
.isc_nrxd_max = {IGB_MAX_RXD},
.isc_ntxd_max = {IGB_MAX_TXD},
.isc_nrxd_default = {EM_DEFAULT_RXD},
.isc_ntxd_default = {EM_DEFAULT_TXD},
};
if_shared_ctx_t igb_sctx = &igb_sctx_init;
/*****************************************************************
*
* Dump Registers
*
****************************************************************/
#define IGB_REGS_LEN 739
static int em_get_regs(SYSCTL_HANDLER_ARGS)
{
struct adapter *adapter = (struct adapter *)arg1;
struct e1000_hw *hw = &adapter->hw;
struct sbuf *sb;
u32 *regs_buff;
int rc;
regs_buff = malloc(sizeof(u32) * IGB_REGS_LEN, M_DEVBUF, M_WAITOK);
memset(regs_buff, 0, IGB_REGS_LEN * sizeof(u32));
rc = sysctl_wire_old_buffer(req, 0);
MPASS(rc == 0);
if (rc != 0) {
free(regs_buff, M_DEVBUF);
return (rc);
}
sb = sbuf_new_for_sysctl(NULL, NULL, 32*400, req);
MPASS(sb != NULL);
if (sb == NULL) {
free(regs_buff, M_DEVBUF);
return (ENOMEM);
}
/* General Registers */
regs_buff[0] = E1000_READ_REG(hw, E1000_CTRL);
regs_buff[1] = E1000_READ_REG(hw, E1000_STATUS);
regs_buff[2] = E1000_READ_REG(hw, E1000_CTRL_EXT);
regs_buff[3] = E1000_READ_REG(hw, E1000_ICR);
regs_buff[4] = E1000_READ_REG(hw, E1000_RCTL);
regs_buff[5] = E1000_READ_REG(hw, E1000_RDLEN(0));
regs_buff[6] = E1000_READ_REG(hw, E1000_RDH(0));
regs_buff[7] = E1000_READ_REG(hw, E1000_RDT(0));
regs_buff[8] = E1000_READ_REG(hw, E1000_RXDCTL(0));
regs_buff[9] = E1000_READ_REG(hw, E1000_RDBAL(0));
regs_buff[10] = E1000_READ_REG(hw, E1000_RDBAH(0));
regs_buff[11] = E1000_READ_REG(hw, E1000_TCTL);
regs_buff[12] = E1000_READ_REG(hw, E1000_TDBAL(0));
regs_buff[13] = E1000_READ_REG(hw, E1000_TDBAH(0));
regs_buff[14] = E1000_READ_REG(hw, E1000_TDLEN(0));
regs_buff[15] = E1000_READ_REG(hw, E1000_TDH(0));
regs_buff[16] = E1000_READ_REG(hw, E1000_TDT(0));
regs_buff[17] = E1000_READ_REG(hw, E1000_TXDCTL(0));
regs_buff[18] = E1000_READ_REG(hw, E1000_TDFH);
regs_buff[19] = E1000_READ_REG(hw, E1000_TDFT);
regs_buff[20] = E1000_READ_REG(hw, E1000_TDFHS);
regs_buff[21] = E1000_READ_REG(hw, E1000_TDFPC);
sbuf_printf(sb, "General Registers\n");
sbuf_printf(sb, "\tCTRL\t %08x\n", regs_buff[0]);
sbuf_printf(sb, "\tSTATUS\t %08x\n", regs_buff[1]);
sbuf_printf(sb, "\tCTRL_EXIT\t %08x\n\n", regs_buff[2]);
sbuf_printf(sb, "Interrupt Registers\n");
sbuf_printf(sb, "\tICR\t %08x\n\n", regs_buff[3]);
sbuf_printf(sb, "RX Registers\n");
sbuf_printf(sb, "\tRCTL\t %08x\n", regs_buff[4]);
sbuf_printf(sb, "\tRDLEN\t %08x\n", regs_buff[5]);
sbuf_printf(sb, "\tRDH\t %08x\n", regs_buff[6]);
sbuf_printf(sb, "\tRDT\t %08x\n", regs_buff[7]);
sbuf_printf(sb, "\tRXDCTL\t %08x\n", regs_buff[8]);
sbuf_printf(sb, "\tRDBAL\t %08x\n", regs_buff[9]);
sbuf_printf(sb, "\tRDBAH\t %08x\n\n", regs_buff[10]);
sbuf_printf(sb, "TX Registers\n");
sbuf_printf(sb, "\tTCTL\t %08x\n", regs_buff[11]);
sbuf_printf(sb, "\tTDBAL\t %08x\n", regs_buff[12]);
sbuf_printf(sb, "\tTDBAH\t %08x\n", regs_buff[13]);
sbuf_printf(sb, "\tTDLEN\t %08x\n", regs_buff[14]);
sbuf_printf(sb, "\tTDH\t %08x\n", regs_buff[15]);
sbuf_printf(sb, "\tTDT\t %08x\n", regs_buff[16]);
sbuf_printf(sb, "\tTXDCTL\t %08x\n", regs_buff[17]);
sbuf_printf(sb, "\tTDFH\t %08x\n", regs_buff[18]);
sbuf_printf(sb, "\tTDFT\t %08x\n", regs_buff[19]);
sbuf_printf(sb, "\tTDFHS\t %08x\n", regs_buff[20]);
sbuf_printf(sb, "\tTDFPC\t %08x\n\n", regs_buff[21]);
free(regs_buff, M_DEVBUF);
#ifdef DUMP_DESCS
{
if_softc_ctx_t scctx = adapter->shared;
struct rx_ring *rxr = &rx_que->rxr;
struct tx_ring *txr = &tx_que->txr;
int ntxd = scctx->isc_ntxd[0];
int nrxd = scctx->isc_nrxd[0];
int j;
for (j = 0; j < nrxd; j++) {
u32 staterr = le32toh(rxr->rx_base[j].wb.upper.status_error);
u32 length = le32toh(rxr->rx_base[j].wb.upper.length);
sbuf_printf(sb, "\tReceive Descriptor Address %d: %08" PRIx64 " Error:%d Length:%d\n", j, rxr->rx_base[j].read.buffer_addr, staterr, length);
}
for (j = 0; j < min(ntxd, 256); j++) {
unsigned int *ptr = (unsigned int *)&txr->tx_base[j];
sbuf_printf(sb, "\tTXD[%03d] [0]: %08x [1]: %08x [2]: %08x [3]: %08x eop: %d DD=%d\n",
j, ptr[0], ptr[1], ptr[2], ptr[3], buf->eop,
buf->eop != -1 ? txr->tx_base[buf->eop].upper.fields.status & E1000_TXD_STAT_DD : 0);
}
}
#endif
rc = sbuf_finish(sb);
sbuf_delete(sb);
return(rc);
}
static void *
em_register(device_t dev)
{
return (em_sctx);
}
static void *
igb_register(device_t dev)
{
return (igb_sctx);
}
static int
em_set_num_queues(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
int maxqueues;
/* Sanity check based on HW */
switch (adapter->hw.mac.type) {
case e1000_82576:
case e1000_82580:
case e1000_i350:
case e1000_i354:
maxqueues = 8;
break;
case e1000_i210:
case e1000_82575:
maxqueues = 4;
break;
case e1000_i211:
case e1000_82574:
maxqueues = 2;
break;
default:
maxqueues = 1;
break;
}
return (maxqueues);
}
#define EM_CAPS \
IFCAP_TSO4 | IFCAP_TXCSUM | IFCAP_LRO | IFCAP_RXCSUM | IFCAP_VLAN_HWFILTER | IFCAP_WOL_MAGIC | \
IFCAP_WOL_MCAST | IFCAP_WOL | IFCAP_VLAN_HWTSO | IFCAP_HWCSUM | IFCAP_VLAN_HWTAGGING | \
IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWTSO | IFCAP_VLAN_MTU;
#define IGB_CAPS \
IFCAP_TSO4 | IFCAP_TXCSUM | IFCAP_LRO | IFCAP_RXCSUM | IFCAP_VLAN_HWFILTER | IFCAP_WOL_MAGIC | \
IFCAP_WOL_MCAST | IFCAP_WOL | IFCAP_VLAN_HWTSO | IFCAP_HWCSUM | IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWCSUM | \
IFCAP_VLAN_HWTSO | IFCAP_VLAN_MTU | IFCAP_TXCSUM_IPV6 | IFCAP_HWCSUM_IPV6 | IFCAP_JUMBO_MTU;
/*********************************************************************
* Device initialization routine
*
* The attach entry point is called when the driver is being loaded.
* This routine identifies the type of hardware, allocates all resources
* and initializes the hardware.
*
* return 0 on success, positive on failure
*********************************************************************/
static int
em_if_attach_pre(if_ctx_t ctx)
{
struct adapter *adapter;
if_softc_ctx_t scctx;
device_t dev;
struct e1000_hw *hw;
int error = 0;
INIT_DEBUGOUT("em_if_attach_pre begin");
dev = iflib_get_dev(ctx);
adapter = iflib_get_softc(ctx);
if (resource_disabled("em", device_get_unit(dev))) {
device_printf(dev, "Disabled by device hint\n");
return (ENXIO);
}
adapter->ctx = adapter->osdep.ctx = ctx;
adapter->dev = adapter->osdep.dev = dev;
scctx = adapter->shared = iflib_get_softc_ctx(ctx);
adapter->media = iflib_get_media(ctx);
hw = &adapter->hw;
adapter->tx_process_limit = scctx->isc_ntxd[0];
/* SYSCTL stuff */
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "nvm", CTLTYPE_INT|CTLFLAG_RW, adapter, 0,
em_sysctl_nvm_info, "I", "NVM Information");
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "debug", CTLTYPE_INT|CTLFLAG_RW, adapter, 0,
em_sysctl_debug_info, "I", "Debug Information");
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "fc", CTLTYPE_INT|CTLFLAG_RW, adapter, 0,
em_set_flowcntl, "I", "Flow Control");
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "reg_dump", CTLTYPE_STRING | CTLFLAG_RD, adapter, 0,
em_get_regs, "A", "Dump Registers");
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "rs_dump", CTLTYPE_INT | CTLFLAG_RW, adapter, 0,
em_get_rs, "I", "Dump RS indexes");
/* Determine hardware and mac info */
em_identify_hardware(ctx);
/* Set isc_msix_bar */
scctx->isc_msix_bar = PCIR_BAR(EM_MSIX_BAR);
scctx->isc_tx_nsegments = EM_MAX_SCATTER;
scctx->isc_tx_tso_segments_max = scctx->isc_tx_nsegments;
scctx->isc_tx_tso_size_max = EM_TSO_SIZE;
scctx->isc_tx_tso_segsize_max = EM_TSO_SEG_SIZE;
scctx->isc_nrxqsets_max = scctx->isc_ntxqsets_max = em_set_num_queues(ctx);
device_printf(dev, "attach_pre capping queues at %d\n", scctx->isc_ntxqsets_max);
scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_IP_TSO;
if (adapter->hw.mac.type >= igb_mac_min) {
int try_second_bar;
scctx->isc_txqsizes[0] = roundup2(scctx->isc_ntxd[0] * sizeof(union e1000_adv_tx_desc), EM_DBA_ALIGN);
scctx->isc_rxqsizes[0] = roundup2(scctx->isc_nrxd[0] * sizeof(union e1000_adv_rx_desc), EM_DBA_ALIGN);
scctx->isc_txd_size[0] = sizeof(union e1000_adv_tx_desc);
scctx->isc_rxd_size[0] = sizeof(union e1000_adv_rx_desc);
scctx->isc_txrx = &igb_txrx;
scctx->isc_capenable = IGB_CAPS;
scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_TSO | CSUM_IP6_TCP \
| CSUM_IP6_UDP | CSUM_IP6_TCP;
if (adapter->hw.mac.type != e1000_82575)
scctx->isc_tx_csum_flags |= CSUM_SCTP | CSUM_IP6_SCTP;
/*
** Some new devices, as with ixgbe, now may
** use a different BAR, so we need to keep
** track of which is used.
*/
try_second_bar = pci_read_config(dev, scctx->isc_msix_bar, 4);
if (try_second_bar == 0)
scctx->isc_msix_bar += 4;
} else if (adapter->hw.mac.type >= em_mac_min) {
scctx->isc_txqsizes[0] = roundup2(scctx->isc_ntxd[0]* sizeof(struct e1000_tx_desc), EM_DBA_ALIGN);
scctx->isc_rxqsizes[0] = roundup2(scctx->isc_nrxd[0] * sizeof(union e1000_rx_desc_extended), EM_DBA_ALIGN);
scctx->isc_txd_size[0] = sizeof(struct e1000_tx_desc);
scctx->isc_rxd_size[0] = sizeof(union e1000_rx_desc_extended);
scctx->isc_txrx = &em_txrx;
scctx->isc_capenable = EM_CAPS;
scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_IP_TSO;
} else {
scctx->isc_txqsizes[0] = roundup2((scctx->isc_ntxd[0] + 1) * sizeof(struct e1000_tx_desc), EM_DBA_ALIGN);
scctx->isc_rxqsizes[0] = roundup2((scctx->isc_nrxd[0] + 1) * sizeof(struct e1000_rx_desc), EM_DBA_ALIGN);
scctx->isc_txd_size[0] = sizeof(struct e1000_tx_desc);
scctx->isc_rxd_size[0] = sizeof(struct e1000_rx_desc);
scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_IP_TSO;
scctx->isc_txrx = &lem_txrx;
scctx->isc_capenable = EM_CAPS;
if (adapter->hw.mac.type < e1000_82543)
scctx->isc_capenable &= ~(IFCAP_HWCSUM|IFCAP_VLAN_HWCSUM);
scctx->isc_tx_csum_flags = CSUM_TCP | CSUM_UDP | CSUM_IP_TSO;
scctx->isc_msix_bar = 0;
}
/* Setup PCI resources */
if (em_allocate_pci_resources(ctx)) {
device_printf(dev, "Allocation of PCI resources failed\n");
error = ENXIO;
goto err_pci;
}
/*
** For ICH8 and family we need to
** map the flash memory, and this
** must happen after the MAC is
** identified
*/
if ((hw->mac.type == e1000_ich8lan) ||
(hw->mac.type == e1000_ich9lan) ||
(hw->mac.type == e1000_ich10lan) ||
(hw->mac.type == e1000_pchlan) ||
(hw->mac.type == e1000_pch2lan) ||
(hw->mac.type == e1000_pch_lpt)) {
int rid = EM_BAR_TYPE_FLASH;
adapter->flash = bus_alloc_resource_any(dev,
SYS_RES_MEMORY, &rid, RF_ACTIVE);
if (adapter->flash == NULL) {
device_printf(dev, "Mapping of Flash failed\n");
error = ENXIO;
goto err_pci;
}
/* This is used in the shared code */
hw->flash_address = (u8 *)adapter->flash;
adapter->osdep.flash_bus_space_tag =
rman_get_bustag(adapter->flash);
adapter->osdep.flash_bus_space_handle =
rman_get_bushandle(adapter->flash);
}
/*
** In the new SPT device flash is not a
** separate BAR, rather it is also in BAR0,
** so use the same tag and an offset handle for the
** FLASH read/write macros in the shared code.
*/
else if (hw->mac.type >= e1000_pch_spt) {
adapter->osdep.flash_bus_space_tag =
adapter->osdep.mem_bus_space_tag;
adapter->osdep.flash_bus_space_handle =
adapter->osdep.mem_bus_space_handle
+ E1000_FLASH_BASE_ADDR;
}
/* Do Shared Code initialization */
error = e1000_setup_init_funcs(hw, TRUE);
if (error) {
device_printf(dev, "Setup of Shared code failed, error %d\n",
error);
error = ENXIO;
goto err_pci;
}
em_setup_msix(ctx);
e1000_get_bus_info(hw);
/* Set up some sysctls for the tunable interrupt delays */
em_add_int_delay_sysctl(adapter, "rx_int_delay",
"receive interrupt delay in usecs", &adapter->rx_int_delay,
E1000_REGISTER(hw, E1000_RDTR), em_rx_int_delay_dflt);
em_add_int_delay_sysctl(adapter, "tx_int_delay",
"transmit interrupt delay in usecs", &adapter->tx_int_delay,
E1000_REGISTER(hw, E1000_TIDV), em_tx_int_delay_dflt);
em_add_int_delay_sysctl(adapter, "rx_abs_int_delay",
"receive interrupt delay limit in usecs",
&adapter->rx_abs_int_delay,
E1000_REGISTER(hw, E1000_RADV),
em_rx_abs_int_delay_dflt);
em_add_int_delay_sysctl(adapter, "tx_abs_int_delay",
"transmit interrupt delay limit in usecs",
&adapter->tx_abs_int_delay,
E1000_REGISTER(hw, E1000_TADV),
em_tx_abs_int_delay_dflt);
em_add_int_delay_sysctl(adapter, "itr",
"interrupt delay limit in usecs/4",
&adapter->tx_itr,
E1000_REGISTER(hw, E1000_ITR),
DEFAULT_ITR);
hw->mac.autoneg = DO_AUTO_NEG;
hw->phy.autoneg_wait_to_complete = FALSE;
hw->phy.autoneg_advertised = AUTONEG_ADV_DEFAULT;
if (adapter->hw.mac.type < em_mac_min) {
e1000_init_script_state_82541(&adapter->hw, TRUE);
e1000_set_tbi_compatibility_82543(&adapter->hw, TRUE);
}
/* Copper options */
if (hw->phy.media_type == e1000_media_type_copper) {
hw->phy.mdix = AUTO_ALL_MODES;
hw->phy.disable_polarity_correction = FALSE;
hw->phy.ms_type = EM_MASTER_SLAVE;
}
/*
* Set the frame limits assuming
* standard ethernet sized frames.
*/
scctx->isc_max_frame_size = adapter->hw.mac.max_frame_size =
ETHERMTU + ETHER_HDR_LEN + ETHERNET_FCS_SIZE;
/*
* This controls when hardware reports transmit completion
* status.
*/
hw->mac.report_tx_early = 1;
/* Allocate multicast array memory. */
adapter->mta = malloc(sizeof(u8) * ETH_ADDR_LEN *
MAX_NUM_MULTICAST_ADDRESSES, M_DEVBUF, M_NOWAIT);
if (adapter->mta == NULL) {
device_printf(dev, "Can not allocate multicast setup array\n");
error = ENOMEM;
goto err_late;
}
/* Check SOL/IDER usage */
if (e1000_check_reset_block(hw))
device_printf(dev, "PHY reset is blocked"
" due to SOL/IDER session.\n");
/* Sysctl for setting Energy Efficient Ethernet */
hw->dev_spec.ich8lan.eee_disable = eee_setting;
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "eee_control", CTLTYPE_INT|CTLFLAG_RW,
adapter, 0, em_sysctl_eee, "I",
"Disable Energy Efficient Ethernet");
/*
** Start from a known state, this is
** important in reading the nvm and
** mac from that.
*/
e1000_reset_hw(hw);
/* Make sure we have a good EEPROM before we read from it */
if (e1000_validate_nvm_checksum(hw) < 0) {
/*
** Some PCI-E parts fail the first check due to
** the link being in sleep state, call it again,
** if it fails a second time its a real issue.
*/
if (e1000_validate_nvm_checksum(hw) < 0) {
device_printf(dev,
"The EEPROM Checksum Is Not Valid\n");
error = EIO;
goto err_late;
}
}
/* Copy the permanent MAC address out of the EEPROM */
if (e1000_read_mac_addr(hw) < 0) {
device_printf(dev, "EEPROM read error while reading MAC"
" address\n");
error = EIO;
goto err_late;
}
if (!em_is_valid_ether_addr(hw->mac.addr)) {
device_printf(dev, "Invalid MAC address\n");
error = EIO;
goto err_late;
}
/* Disable ULP support */
e1000_disable_ulp_lpt_lp(hw, TRUE);
/*
* Get Wake-on-Lan and Management info for later use
*/
em_get_wakeup(ctx);
iflib_set_mac(ctx, hw->mac.addr);
return (0);
err_late:
em_release_hw_control(adapter);
err_pci:
em_free_pci_resources(ctx);
free(adapter->mta, M_DEVBUF);
return (error);
}
static int
em_if_attach_post(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct e1000_hw *hw = &adapter->hw;
int error = 0;
/* Setup OS specific network interface */
error = em_setup_interface(ctx);
if (error != 0) {
goto err_late;
}
em_reset(ctx);
/* Initialize statistics */
em_update_stats_counters(adapter);
hw->mac.get_link_status = 1;
em_if_update_admin_status(ctx);
em_add_hw_stats(adapter);
/* Non-AMT based hardware can now take control from firmware */
if (adapter->has_manage && !adapter->has_amt)
em_get_hw_control(adapter);
INIT_DEBUGOUT("em_if_attach_post: end");
return (error);
err_late:
em_release_hw_control(adapter);
em_free_pci_resources(ctx);
em_if_queues_free(ctx);
free(adapter->mta, M_DEVBUF);
return (error);
}
/*********************************************************************
* Device removal routine
*
* The detach entry point is called when the driver is being removed.
* This routine stops the adapter and deallocates all the resources
* that were allocated for driver operation.
*
* return 0 on success, positive on failure
*********************************************************************/
static int
em_if_detach(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
INIT_DEBUGOUT("em_detach: begin");
e1000_phy_hw_reset(&adapter->hw);
em_release_manageability(adapter);
em_release_hw_control(adapter);
em_free_pci_resources(ctx);
return (0);
}
/*********************************************************************
*
* Shutdown entry point
*
**********************************************************************/
static int
em_if_shutdown(if_ctx_t ctx)
{
return em_if_suspend(ctx);
}
/*
* Suspend/resume device methods.
*/
static int
em_if_suspend(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
em_release_manageability(adapter);
em_release_hw_control(adapter);
em_enable_wakeup(ctx);
return (0);
}
static int
em_if_resume(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
if (adapter->hw.mac.type == e1000_pch2lan)
e1000_resume_workarounds_pchlan(&adapter->hw);
em_if_init(ctx);
em_init_manageability(adapter);
return(0);
}
static int
em_if_mtu_set(if_ctx_t ctx, uint32_t mtu)
{
int max_frame_size;
struct adapter *adapter = iflib_get_softc(ctx);
if_softc_ctx_t scctx = iflib_get_softc_ctx(ctx);
IOCTL_DEBUGOUT("ioctl rcv'd: SIOCSIFMTU (Set Interface MTU)");
switch (adapter->hw.mac.type) {
case e1000_82571:
case e1000_82572:
case e1000_ich9lan:
case e1000_ich10lan:
case e1000_pch2lan:
case e1000_pch_lpt:
case e1000_pch_spt:
case e1000_pch_cnp:
case e1000_pch_tgp:
case e1000_82574:
case e1000_82583:
case e1000_80003es2lan:
/* 9K Jumbo Frame size */
max_frame_size = 9234;
break;
case e1000_pchlan:
max_frame_size = 4096;
break;
case e1000_82542:
case e1000_ich8lan:
/* Adapters that do not support jumbo frames */
max_frame_size = ETHER_MAX_LEN;
break;
default:
if (adapter->hw.mac.type >= igb_mac_min)
max_frame_size = 9234;
else /* lem */
max_frame_size = MAX_JUMBO_FRAME_SIZE;
}
if (mtu > max_frame_size - ETHER_HDR_LEN - ETHER_CRC_LEN) {
return (EINVAL);
}
scctx->isc_max_frame_size = adapter->hw.mac.max_frame_size =
mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
return (0);
}
/*********************************************************************
* Init entry point
*
* This routine is used in two ways. It is used by the stack as
* init entry point in network interface structure. It is also used
* by the driver as a hw/sw initialization routine to get to a
* consistent state.
*
* return 0 on success, positive on failure
**********************************************************************/
static void
em_if_init(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct ifnet *ifp = iflib_get_ifp(ctx);
struct em_tx_queue *tx_que;
int i;
INIT_DEBUGOUT("em_if_init: begin");
/* Get the latest mac address, User can use a LAA */
bcopy(if_getlladdr(ifp), adapter->hw.mac.addr,
ETHER_ADDR_LEN);
/* Put the address into the Receive Address Array */
e1000_rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
/*
* With the 82571 adapter, RAR[0] may be overwritten
* when the other port is reset, we make a duplicate
* in RAR[14] for that eventuality, this assures
* the interface continues to function.
*/
if (adapter->hw.mac.type == e1000_82571) {
e1000_set_laa_state_82571(&adapter->hw, TRUE);
e1000_rar_set(&adapter->hw, adapter->hw.mac.addr,
E1000_RAR_ENTRIES - 1);
}
/* Initialize the hardware */
em_reset(ctx);
em_if_update_admin_status(ctx);
for (i = 0, tx_que = adapter->tx_queues; i < adapter->tx_num_queues; i++, tx_que++) {
struct tx_ring *txr = &tx_que->txr;
txr->tx_rs_cidx = txr->tx_rs_pidx = txr->tx_cidx_processed = 0;
}
/* Setup VLAN support, basic and offload if available */
E1000_WRITE_REG(&adapter->hw, E1000_VET, ETHERTYPE_VLAN);
/* Clear bad data from Rx FIFOs */
if (adapter->hw.mac.type >= igb_mac_min)
e1000_rx_fifo_flush_82575(&adapter->hw);
/* Configure for OS presence */
em_init_manageability(adapter);
/* Prepare transmit descriptors and buffers */
em_initialize_transmit_unit(ctx);
/* Setup Multicast table */
em_if_multi_set(ctx);
/*
* Figure out the desired mbuf
* pool for doing jumbos
*/
if (adapter->hw.mac.max_frame_size <= 2048)
adapter->rx_mbuf_sz = MCLBYTES;
#ifndef CONTIGMALLOC_WORKS
else
adapter->rx_mbuf_sz = MJUMPAGESIZE;
#else
else if (adapter->hw.mac.max_frame_size <= 4096)
adapter->rx_mbuf_sz = MJUMPAGESIZE;
else
adapter->rx_mbuf_sz = MJUM9BYTES;
#endif
em_initialize_receive_unit(ctx);
/* Use real VLAN Filter support? */
if (if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) {
if (if_getcapenable(ifp) & IFCAP_VLAN_HWFILTER)
/* Use real VLAN Filter support */
em_setup_vlan_hw_support(adapter);
else {
u32 ctrl;
ctrl = E1000_READ_REG(&adapter->hw, E1000_CTRL);
ctrl |= E1000_CTRL_VME;
E1000_WRITE_REG(&adapter->hw, E1000_CTRL, ctrl);
}
}
/* Don't lose promiscuous settings */
em_if_set_promisc(ctx, IFF_PROMISC);
e1000_clear_hw_cntrs_base_generic(&adapter->hw);
/* MSI/X configuration for 82574 */
if (adapter->hw.mac.type == e1000_82574) {
int tmp = E1000_READ_REG(&adapter->hw, E1000_CTRL_EXT);
tmp |= E1000_CTRL_EXT_PBA_CLR;
E1000_WRITE_REG(&adapter->hw, E1000_CTRL_EXT, tmp);
/* Set the IVAR - interrupt vector routing. */
E1000_WRITE_REG(&adapter->hw, E1000_IVAR, adapter->ivars);
} else if (adapter->intr_type == IFLIB_INTR_MSIX) /* Set up queue routing */
igb_configure_queues(adapter);
/* this clears any pending interrupts */
E1000_READ_REG(&adapter->hw, E1000_ICR);
E1000_WRITE_REG(&adapter->hw, E1000_ICS, E1000_ICS_LSC);
/* AMT based hardware can now take control from firmware */
if (adapter->has_manage && adapter->has_amt)
em_get_hw_control(adapter);
/* Set Energy Efficient Ethernet */
if (adapter->hw.mac.type >= igb_mac_min &&
adapter->hw.phy.media_type == e1000_media_type_copper) {
if (adapter->hw.mac.type == e1000_i354)
e1000_set_eee_i354(&adapter->hw, TRUE, TRUE);
else
e1000_set_eee_i350(&adapter->hw, TRUE, TRUE);
}
}
/*********************************************************************
*
* Fast Legacy/MSI Combined Interrupt Service routine
*
*********************************************************************/
int
em_intr(void *arg)
{
struct adapter *adapter = arg;
if_ctx_t ctx = adapter->ctx;
u32 reg_icr;
reg_icr = E1000_READ_REG(&adapter->hw, E1000_ICR);
if (adapter->intr_type != IFLIB_INTR_LEGACY)
goto skip_stray;
/* Hot eject? */
if (reg_icr == 0xffffffff)
return FILTER_STRAY;
/* Definitely not our interrupt. */
if (reg_icr == 0x0)
return FILTER_STRAY;
/*
* Starting with the 82571 chip, bit 31 should be used to
* determine whether the interrupt belongs to us.
*/
if (adapter->hw.mac.type >= e1000_82571 &&
(reg_icr & E1000_ICR_INT_ASSERTED) == 0)
return FILTER_STRAY;
skip_stray:
/* Link status change */
if (reg_icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
adapter->hw.mac.get_link_status = 1;
iflib_admin_intr_deferred(ctx);
}
if (reg_icr & E1000_ICR_RXO)
adapter->rx_overruns++;
return (FILTER_SCHEDULE_THREAD);
}
static void
igb_rx_enable_queue(struct adapter *adapter, struct em_rx_queue *rxq)
{
E1000_WRITE_REG(&adapter->hw, E1000_EIMS, rxq->eims);
}
static void
em_rx_enable_queue(struct adapter *adapter, struct em_rx_queue *rxq)
{
E1000_WRITE_REG(&adapter->hw, E1000_IMS, rxq->eims);
}
static void
igb_tx_enable_queue(struct adapter *adapter, struct em_tx_queue *txq)
{
E1000_WRITE_REG(&adapter->hw, E1000_EIMS, txq->eims);
}
static void
em_tx_enable_queue(struct adapter *adapter, struct em_tx_queue *txq)
{
E1000_WRITE_REG(&adapter->hw, E1000_IMS, txq->eims);
}
static int
em_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct em_rx_queue *rxq = &adapter->rx_queues[rxqid];
if (adapter->hw.mac.type >= igb_mac_min)
igb_rx_enable_queue(adapter, rxq);
else
em_rx_enable_queue(adapter, rxq);
return (0);
}
static int
em_if_tx_queue_intr_enable(if_ctx_t ctx, uint16_t txqid)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct em_tx_queue *txq = &adapter->tx_queues[txqid];
if (adapter->hw.mac.type >= igb_mac_min)
igb_tx_enable_queue(adapter, txq);
else
em_tx_enable_queue(adapter, txq);
return (0);
}
/*********************************************************************
*
* MSIX RX Interrupt Service routine
*
**********************************************************************/
static int
em_msix_que(void *arg)
{
struct em_rx_queue *que = arg;
++que->irqs;
return (FILTER_SCHEDULE_THREAD);
}
/*********************************************************************
*
* MSIX Link Fast Interrupt Service routine
*
**********************************************************************/
static int
em_msix_link(void *arg)
{
struct adapter *adapter = arg;
u32 reg_icr;
++adapter->link_irq;
MPASS(adapter->hw.back != NULL);
reg_icr = E1000_READ_REG(&adapter->hw, E1000_ICR);
if (reg_icr & E1000_ICR_RXO)
adapter->rx_overruns++;
if (reg_icr & (E1000_ICR_RXSEQ | E1000_ICR_LSC)) {
em_handle_link(adapter->ctx);
} else {
E1000_WRITE_REG(&adapter->hw, E1000_IMS,
EM_MSIX_LINK | E1000_IMS_LSC);
if (adapter->hw.mac.type >= igb_mac_min)
E1000_WRITE_REG(&adapter->hw, E1000_EIMS, adapter->link_mask);
}
/*
* Because we must read the ICR for this interrupt
* it may clear other causes using autoclear, for
* this reason we simply create a soft interrupt
* for all these vectors.
*/
if (reg_icr && adapter->hw.mac.type < igb_mac_min) {
E1000_WRITE_REG(&adapter->hw,
E1000_ICS, adapter->ims);
}
return (FILTER_HANDLED);
}
static void
em_handle_link(void *context)
{
if_ctx_t ctx = context;
struct adapter *adapter = iflib_get_softc(ctx);
adapter->hw.mac.get_link_status = 1;
iflib_admin_intr_deferred(ctx);
}
/*********************************************************************
*
* Media Ioctl callback
*
* This routine is called whenever the user queries the status of
* the interface using ifconfig.
*
**********************************************************************/
static void
em_if_media_status(if_ctx_t ctx, struct ifmediareq *ifmr)
{
struct adapter *adapter = iflib_get_softc(ctx);
u_char fiber_type = IFM_1000_SX;
INIT_DEBUGOUT("em_if_media_status: begin");
iflib_admin_intr_deferred(ctx);
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER;
if (!adapter->link_active) {
return;
}
ifmr->ifm_status |= IFM_ACTIVE;
if ((adapter->hw.phy.media_type == e1000_media_type_fiber) ||
(adapter->hw.phy.media_type == e1000_media_type_internal_serdes)) {
if (adapter->hw.mac.type == e1000_82545)
fiber_type = IFM_1000_LX;
ifmr->ifm_active |= fiber_type | IFM_FDX;
} else {
switch (adapter->link_speed) {
case 10:
ifmr->ifm_active |= IFM_10_T;
break;
case 100:
ifmr->ifm_active |= IFM_100_TX;
break;
case 1000:
ifmr->ifm_active |= IFM_1000_T;
break;
}
if (adapter->link_duplex == FULL_DUPLEX)
ifmr->ifm_active |= IFM_FDX;
else
ifmr->ifm_active |= IFM_HDX;
}
}
/*********************************************************************
*
* Media Ioctl callback
*
* This routine is called when the user changes speed/duplex using
* media/mediopt option with ifconfig.
*
**********************************************************************/
static int
em_if_media_change(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct ifmedia *ifm = iflib_get_media(ctx);
INIT_DEBUGOUT("em_if_media_change: begin");
if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
return (EINVAL);
switch (IFM_SUBTYPE(ifm->ifm_media)) {
case IFM_AUTO:
adapter->hw.mac.autoneg = DO_AUTO_NEG;
adapter->hw.phy.autoneg_advertised = AUTONEG_ADV_DEFAULT;
break;
case IFM_1000_LX:
case IFM_1000_SX:
case IFM_1000_T:
adapter->hw.mac.autoneg = DO_AUTO_NEG;
adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
break;
case IFM_100_TX:
adapter->hw.mac.autoneg = FALSE;
adapter->hw.phy.autoneg_advertised = 0;
if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
adapter->hw.mac.forced_speed_duplex = ADVERTISE_100_FULL;
else
adapter->hw.mac.forced_speed_duplex = ADVERTISE_100_HALF;
break;
case IFM_10_T:
adapter->hw.mac.autoneg = FALSE;
adapter->hw.phy.autoneg_advertised = 0;
if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX)
adapter->hw.mac.forced_speed_duplex = ADVERTISE_10_FULL;
else
adapter->hw.mac.forced_speed_duplex = ADVERTISE_10_HALF;
break;
default:
device_printf(adapter->dev, "Unsupported media type\n");
}
em_if_init(ctx);
return (0);
}
static int
em_if_set_promisc(if_ctx_t ctx, int flags)
{
struct adapter *adapter = iflib_get_softc(ctx);
u32 reg_rctl;
em_disable_promisc(ctx);
reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
if (flags & IFF_PROMISC) {
reg_rctl |= (E1000_RCTL_UPE | E1000_RCTL_MPE);
/* Turn this on if you want to see bad packets */
if (em_debug_sbp)
reg_rctl |= E1000_RCTL_SBP;
E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
} else if (flags & IFF_ALLMULTI) {
reg_rctl |= E1000_RCTL_MPE;
reg_rctl &= ~E1000_RCTL_UPE;
E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
}
return (0);
}
static void
em_disable_promisc(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct ifnet *ifp = iflib_get_ifp(ctx);
u32 reg_rctl;
int mcnt = 0;
reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
reg_rctl &= (~E1000_RCTL_UPE);
if (if_getflags(ifp) & IFF_ALLMULTI)
mcnt = MAX_NUM_MULTICAST_ADDRESSES;
else
mcnt = if_multiaddr_count(ifp, MAX_NUM_MULTICAST_ADDRESSES);
/* Don't disable if in MAX groups */
if (mcnt < MAX_NUM_MULTICAST_ADDRESSES)
reg_rctl &= (~E1000_RCTL_MPE);
reg_rctl &= (~E1000_RCTL_SBP);
E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
}
/*********************************************************************
* Multicast Update
*
* This routine is called whenever multicast address list is updated.
*
**********************************************************************/
static void
em_if_multi_set(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct ifnet *ifp = iflib_get_ifp(ctx);
u32 reg_rctl = 0;
u8 *mta; /* Multicast array memory */
int mcnt = 0;
IOCTL_DEBUGOUT("em_set_multi: begin");
mta = adapter->mta;
bzero(mta, sizeof(u8) * ETH_ADDR_LEN * MAX_NUM_MULTICAST_ADDRESSES);
if (adapter->hw.mac.type == e1000_82542 &&
adapter->hw.revision_id == E1000_REVISION_2) {
reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
if (adapter->hw.bus.pci_cmd_word & CMD_MEM_WRT_INVALIDATE)
e1000_pci_clear_mwi(&adapter->hw);
reg_rctl |= E1000_RCTL_RST;
E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
msec_delay(5);
}
if_multiaddr_array(ifp, mta, &mcnt, MAX_NUM_MULTICAST_ADDRESSES);
if (mcnt >= MAX_NUM_MULTICAST_ADDRESSES) {
reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
reg_rctl |= E1000_RCTL_MPE;
E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
} else
e1000_update_mc_addr_list(&adapter->hw, mta, mcnt);
if (adapter->hw.mac.type == e1000_82542 &&
adapter->hw.revision_id == E1000_REVISION_2) {
reg_rctl = E1000_READ_REG(&adapter->hw, E1000_RCTL);
reg_rctl &= ~E1000_RCTL_RST;
E1000_WRITE_REG(&adapter->hw, E1000_RCTL, reg_rctl);
msec_delay(5);
if (adapter->hw.bus.pci_cmd_word & CMD_MEM_WRT_INVALIDATE)
e1000_pci_set_mwi(&adapter->hw);
}
}
/*********************************************************************
* Timer routine
*
* This routine checks for link status and updates statistics.
*
**********************************************************************/
static void
em_if_timer(if_ctx_t ctx, uint16_t qid)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct em_rx_queue *que;
int i;
int trigger = 0;
if (qid != 0)
return;
iflib_admin_intr_deferred(ctx);
/* Mask to use in the irq trigger */
if (adapter->intr_type == IFLIB_INTR_MSIX) {
for (i = 0, que = adapter->rx_queues; i < adapter->rx_num_queues; i++, que++)
trigger |= que->eims;
} else {
trigger = E1000_ICS_RXDMT0;
}
}
static void
em_if_update_admin_status(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct e1000_hw *hw = &adapter->hw;
struct ifnet *ifp = iflib_get_ifp(ctx);
device_t dev = iflib_get_dev(ctx);
u32 link_check, thstat, ctrl;
link_check = thstat = ctrl = 0;
/* Get the cached link value or read phy for real */
switch (hw->phy.media_type) {
case e1000_media_type_copper:
if (hw->mac.get_link_status) {
if (hw->mac.type == e1000_pch_spt)
msec_delay(50);
/* Do the work to read phy */
e1000_check_for_link(hw);
link_check = !hw->mac.get_link_status;
if (link_check) /* ESB2 fix */
e1000_cfg_on_link_up(hw);
} else {
link_check = TRUE;
}
break;
case e1000_media_type_fiber:
e1000_check_for_link(hw);
link_check = (E1000_READ_REG(hw, E1000_STATUS) &
E1000_STATUS_LU);
break;
case e1000_media_type_internal_serdes:
e1000_check_for_link(hw);
link_check = adapter->hw.mac.serdes_has_link;
break;
/* VF device is type_unknown */
case e1000_media_type_unknown:
e1000_check_for_link(hw);
link_check = !hw->mac.get_link_status;
/* FALLTHROUGH */
default:
break;
}
/* Check for thermal downshift or shutdown */
if (hw->mac.type == e1000_i350) {
thstat = E1000_READ_REG(hw, E1000_THSTAT);
ctrl = E1000_READ_REG(hw, E1000_CTRL_EXT);
}
/* Now check for a transition */
if (link_check && (adapter->link_active == 0)) {
e1000_get_speed_and_duplex(hw, &adapter->link_speed,
&adapter->link_duplex);
/* Check if we must disable SPEED_MODE bit on PCI-E */
if ((adapter->link_speed != SPEED_1000) &&
((hw->mac.type == e1000_82571) ||
(hw->mac.type == e1000_82572))) {
int tarc0;
tarc0 = E1000_READ_REG(hw, E1000_TARC(0));
tarc0 &= ~TARC_SPEED_MODE_BIT;
E1000_WRITE_REG(hw, E1000_TARC(0), tarc0);
}
if (bootverbose)
device_printf(dev, "Link is up %d Mbps %s\n",
adapter->link_speed,
((adapter->link_duplex == FULL_DUPLEX) ?
"Full Duplex" : "Half Duplex"));
adapter->link_active = 1;
adapter->smartspeed = 0;
if_setbaudrate(ifp, adapter->link_speed * 1000000);
if ((ctrl & E1000_CTRL_EXT_LINK_MODE_GMII) &&
(thstat & E1000_THSTAT_LINK_THROTTLE))
device_printf(dev, "Link: thermal downshift\n");
/* Delay Link Up for Phy update */
if (((hw->mac.type == e1000_i210) ||
(hw->mac.type == e1000_i211)) &&
(hw->phy.id == I210_I_PHY_ID))
msec_delay(I210_LINK_DELAY);
/* Reset if the media type changed. */
if ((hw->dev_spec._82575.media_changed) &&
(adapter->hw.mac.type >= igb_mac_min)) {
hw->dev_spec._82575.media_changed = false;
adapter->flags |= IGB_MEDIA_RESET;
em_reset(ctx);
}
iflib_link_state_change(ctx, LINK_STATE_UP, ifp->if_baudrate);
printf("Link state changed to up\n");
} else if (!link_check && (adapter->link_active == 1)) {
if_setbaudrate(ifp, 0);
adapter->link_speed = 0;
adapter->link_duplex = 0;
if (bootverbose)
device_printf(dev, "Link is Down\n");
adapter->link_active = 0;
iflib_link_state_change(ctx, LINK_STATE_DOWN, ifp->if_baudrate);
printf("link state changed to down\n");
}
em_update_stats_counters(adapter);
/* Reset LAA into RAR[0] on 82571 */
if ((adapter->hw.mac.type == e1000_82571) &&
e1000_get_laa_state_82571(&adapter->hw))
e1000_rar_set(&adapter->hw, adapter->hw.mac.addr, 0);
if (adapter->hw.mac.type < em_mac_min)
lem_smartspeed(adapter);
E1000_WRITE_REG(&adapter->hw, E1000_IMS, EM_MSIX_LINK | E1000_IMS_LSC);
}
/*********************************************************************
*
* This routine disables all traffic on the adapter by issuing a
* global reset on the MAC and deallocates TX/RX buffers.
*
* This routine should always be called with BOTH the CORE
* and TX locks.
**********************************************************************/
static void
em_if_stop(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
INIT_DEBUGOUT("em_stop: begin");
e1000_reset_hw(&adapter->hw);
if (adapter->hw.mac.type >= e1000_82544)
E1000_WRITE_REG(&adapter->hw, E1000_WUFC, 0);
e1000_led_off(&adapter->hw);
e1000_cleanup_led(&adapter->hw);
}
/*********************************************************************
*
* Determine hardware revision.
*
**********************************************************************/
static void
em_identify_hardware(if_ctx_t ctx)
{
device_t dev = iflib_get_dev(ctx);
struct adapter *adapter = iflib_get_softc(ctx);
/* Make sure our PCI config space has the necessary stuff set */
adapter->hw.bus.pci_cmd_word = pci_read_config(dev, PCIR_COMMAND, 2);
/* Save off the information about this board */
adapter->hw.vendor_id = pci_get_vendor(dev);
adapter->hw.device_id = pci_get_device(dev);
adapter->hw.revision_id = pci_read_config(dev, PCIR_REVID, 1);
adapter->hw.subsystem_vendor_id =
pci_read_config(dev, PCIR_SUBVEND_0, 2);
adapter->hw.subsystem_device_id =
pci_read_config(dev, PCIR_SUBDEV_0, 2);
/* Do Shared Code Init and Setup */
if (e1000_set_mac_type(&adapter->hw)) {
device_printf(dev, "Setup init failure\n");
return;
}
}
static int
em_allocate_pci_resources(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
device_t dev = iflib_get_dev(ctx);
int rid, val;
rid = PCIR_BAR(0);
adapter->memory = bus_alloc_resource_any(dev, SYS_RES_MEMORY,
&rid, RF_ACTIVE);
if (adapter->memory == NULL) {
device_printf(dev, "Unable to allocate bus resource: memory\n");
return (ENXIO);
}
adapter->osdep.mem_bus_space_tag = rman_get_bustag(adapter->memory);
adapter->osdep.mem_bus_space_handle =
rman_get_bushandle(adapter->memory);
adapter->hw.hw_addr = (u8 *)&adapter->osdep.mem_bus_space_handle;
/* Only older adapters use IO mapping */
if (adapter->hw.mac.type < em_mac_min &&
adapter->hw.mac.type > e1000_82543) {
/* Figure our where our IO BAR is ? */
for (rid = PCIR_BAR(0); rid < PCIR_CIS;) {
val = pci_read_config(dev, rid, 4);
if (EM_BAR_TYPE(val) == EM_BAR_TYPE_IO) {
adapter->io_rid = rid;
break;
}
rid += 4;
/* check for 64bit BAR */
if (EM_BAR_MEM_TYPE(val) == EM_BAR_MEM_TYPE_64BIT)
rid += 4;
}
if (rid >= PCIR_CIS) {
device_printf(dev, "Unable to locate IO BAR\n");
return (ENXIO);
}
adapter->ioport = bus_alloc_resource_any(dev,
SYS_RES_IOPORT, &adapter->io_rid, RF_ACTIVE);
if (adapter->ioport == NULL) {
device_printf(dev, "Unable to allocate bus resource: "
"ioport\n");
return (ENXIO);
}
adapter->hw.io_base = 0;
adapter->osdep.io_bus_space_tag =
rman_get_bustag(adapter->ioport);
adapter->osdep.io_bus_space_handle =
rman_get_bushandle(adapter->ioport);
}
adapter->hw.back = &adapter->osdep;
return (0);
}
/*********************************************************************
*
* Setup the MSIX Interrupt handlers
*
**********************************************************************/
static int
em_if_msix_intr_assign(if_ctx_t ctx, int msix)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct em_rx_queue *rx_que = adapter->rx_queues;
struct em_tx_queue *tx_que = adapter->tx_queues;
int error, rid, i, vector = 0, rx_vectors;
char buf[16];
/* First set up ring resources */
for (i = 0; i < adapter->rx_num_queues; i++, rx_que++, vector++) {
rid = vector + 1;
snprintf(buf, sizeof(buf), "rxq%d", i);
error = iflib_irq_alloc_generic(ctx, &rx_que->que_irq, rid, IFLIB_INTR_RXTX, em_msix_que, rx_que, rx_que->me, buf);
if (error) {
device_printf(iflib_get_dev(ctx), "Failed to allocate que int %d err: %d", i, error);
adapter->rx_num_queues = i + 1;
goto fail;
}
rx_que->msix = vector;
/*
* Set the bit to enable interrupt
* in E1000_IMS -- bits 20 and 21
* are for RX0 and RX1, note this has
* NOTHING to do with the MSIX vector
*/
if (adapter->hw.mac.type == e1000_82574) {
rx_que->eims = 1 << (20 + i);
adapter->ims |= rx_que->eims;
adapter->ivars |= (8 | rx_que->msix) << (i * 4);
} else if (adapter->hw.mac.type == e1000_82575)
rx_que->eims = E1000_EICR_TX_QUEUE0 << vector;
else
rx_que->eims = 1 << vector;
}
rx_vectors = vector;
vector = 0;
for (i = 0; i < adapter->tx_num_queues; i++, tx_que++, vector++) {
rid = vector + 1;
snprintf(buf, sizeof(buf), "txq%d", i);
tx_que = &adapter->tx_queues[i];
iflib_softirq_alloc_generic(ctx,
&adapter->rx_queues[i % adapter->rx_num_queues].que_irq,
IFLIB_INTR_TX, tx_que, tx_que->me, buf);
tx_que->msix = (vector % adapter->tx_num_queues);
/*
* Set the bit to enable interrupt
* in E1000_IMS -- bits 22 and 23
* are for TX0 and TX1, note this has
* NOTHING to do with the MSIX vector
*/
if (adapter->hw.mac.type == e1000_82574) {
tx_que->eims = 1 << (22 + i);
adapter->ims |= tx_que->eims;
adapter->ivars |= (8 | tx_que->msix) << (8 + (i * 4));
} else if (adapter->hw.mac.type == e1000_82575) {
tx_que->eims = E1000_EICR_TX_QUEUE0 << (i % adapter->tx_num_queues);
} else {
tx_que->eims = 1 << (i % adapter->tx_num_queues);
}
}
/* Link interrupt */
rid = rx_vectors + 1;
error = iflib_irq_alloc_generic(ctx, &adapter->irq, rid, IFLIB_INTR_ADMIN, em_msix_link, adapter, 0, "aq");
if (error) {
device_printf(iflib_get_dev(ctx), "Failed to register admin handler");
goto fail;
}
adapter->linkvec = rx_vectors;
if (adapter->hw.mac.type < igb_mac_min) {
adapter->ivars |= (8 | rx_vectors) << 16;
adapter->ivars |= 0x80000000;
}
return (0);
fail:
iflib_irq_free(ctx, &adapter->irq);
rx_que = adapter->rx_queues;
for (int i = 0; i < adapter->rx_num_queues; i++, rx_que++)
iflib_irq_free(ctx, &rx_que->que_irq);
return (error);
}
static void
igb_configure_queues(struct adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
struct em_rx_queue *rx_que;
struct em_tx_queue *tx_que;
u32 tmp, ivar = 0, newitr = 0;
/* First turn on RSS capability */
if (adapter->hw.mac.type != e1000_82575)
E1000_WRITE_REG(hw, E1000_GPIE,
E1000_GPIE_MSIX_MODE | E1000_GPIE_EIAME |
E1000_GPIE_PBA | E1000_GPIE_NSICR);
/* Turn on MSIX */
switch (adapter->hw.mac.type) {
case e1000_82580:
case e1000_i350:
case e1000_i354:
case e1000_i210:
case e1000_i211:
case e1000_vfadapt:
case e1000_vfadapt_i350:
/* RX entries */
for (int i = 0; i < adapter->rx_num_queues; i++) {
u32 index = i >> 1;
ivar = E1000_READ_REG_ARRAY(hw, E1000_IVAR0, index);
rx_que = &adapter->rx_queues[i];
if (i & 1) {
ivar &= 0xFF00FFFF;
ivar |= (rx_que->msix | E1000_IVAR_VALID) << 16;
} else {
ivar &= 0xFFFFFF00;
ivar |= rx_que->msix | E1000_IVAR_VALID;
}
E1000_WRITE_REG_ARRAY(hw, E1000_IVAR0, index, ivar);
}
/* TX entries */
for (int i = 0; i < adapter->tx_num_queues; i++) {
u32 index = i >> 1;
ivar = E1000_READ_REG_ARRAY(hw, E1000_IVAR0, index);
tx_que = &adapter->tx_queues[i];
if (i & 1) {
ivar &= 0x00FFFFFF;
ivar |= (tx_que->msix | E1000_IVAR_VALID) << 24;
} else {
ivar &= 0xFFFF00FF;
ivar |= (tx_que->msix | E1000_IVAR_VALID) << 8;
}
E1000_WRITE_REG_ARRAY(hw, E1000_IVAR0, index, ivar);
adapter->que_mask |= tx_que->eims;
}
/* And for the link interrupt */
ivar = (adapter->linkvec | E1000_IVAR_VALID) << 8;
adapter->link_mask = 1 << adapter->linkvec;
E1000_WRITE_REG(hw, E1000_IVAR_MISC, ivar);
break;
case e1000_82576:
/* RX entries */
for (int i = 0; i < adapter->rx_num_queues; i++) {
u32 index = i & 0x7; /* Each IVAR has two entries */
ivar = E1000_READ_REG_ARRAY(hw, E1000_IVAR0, index);
rx_que = &adapter->rx_queues[i];
if (i < 8) {
ivar &= 0xFFFFFF00;
ivar |= rx_que->msix | E1000_IVAR_VALID;
} else {
ivar &= 0xFF00FFFF;
ivar |= (rx_que->msix | E1000_IVAR_VALID) << 16;
}
E1000_WRITE_REG_ARRAY(hw, E1000_IVAR0, index, ivar);
adapter->que_mask |= rx_que->eims;
}
/* TX entries */
for (int i = 0; i < adapter->tx_num_queues; i++) {
u32 index = i & 0x7; /* Each IVAR has two entries */
ivar = E1000_READ_REG_ARRAY(hw, E1000_IVAR0, index);
tx_que = &adapter->tx_queues[i];
if (i < 8) {
ivar &= 0xFFFF00FF;
ivar |= (tx_que->msix | E1000_IVAR_VALID) << 8;
} else {
ivar &= 0x00FFFFFF;
ivar |= (tx_que->msix | E1000_IVAR_VALID) << 24;
}
E1000_WRITE_REG_ARRAY(hw, E1000_IVAR0, index, ivar);
adapter->que_mask |= tx_que->eims;
}
/* And for the link interrupt */
ivar = (adapter->linkvec | E1000_IVAR_VALID) << 8;
adapter->link_mask = 1 << adapter->linkvec;
E1000_WRITE_REG(hw, E1000_IVAR_MISC, ivar);
break;
case e1000_82575:
/* enable MSI-X support*/
tmp = E1000_READ_REG(hw, E1000_CTRL_EXT);
tmp |= E1000_CTRL_EXT_PBA_CLR;
/* Auto-Mask interrupts upon ICR read. */
tmp |= E1000_CTRL_EXT_EIAME;
tmp |= E1000_CTRL_EXT_IRCA;
E1000_WRITE_REG(hw, E1000_CTRL_EXT, tmp);
/* Queues */
for (int i = 0; i < adapter->rx_num_queues; i++) {
rx_que = &adapter->rx_queues[i];
tmp = E1000_EICR_RX_QUEUE0 << i;
tmp |= E1000_EICR_TX_QUEUE0 << i;
rx_que->eims = tmp;
E1000_WRITE_REG_ARRAY(hw, E1000_MSIXBM(0),
i, rx_que->eims);
adapter->que_mask |= rx_que->eims;
}
/* Link */
E1000_WRITE_REG(hw, E1000_MSIXBM(adapter->linkvec),
E1000_EIMS_OTHER);
adapter->link_mask |= E1000_EIMS_OTHER;
default:
break;
}
/* Set the starting interrupt rate */
if (em_max_interrupt_rate > 0)
newitr = (4000000 / em_max_interrupt_rate) & 0x7FFC;
if (hw->mac.type == e1000_82575)
newitr |= newitr << 16;
else
newitr |= E1000_EITR_CNT_IGNR;
for (int i = 0; i < adapter->rx_num_queues; i++) {
rx_que = &adapter->rx_queues[i];
E1000_WRITE_REG(hw, E1000_EITR(rx_que->msix), newitr);
}
return;
}
static void
em_free_pci_resources(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
struct em_rx_queue *que = adapter->rx_queues;
device_t dev = iflib_get_dev(ctx);
/* Release all msix queue resources */
if (adapter->intr_type == IFLIB_INTR_MSIX)
iflib_irq_free(ctx, &adapter->irq);
for (int i = 0; i < adapter->rx_num_queues; i++, que++) {
iflib_irq_free(ctx, &que->que_irq);
}
/* First release all the interrupt resources */
if (adapter->memory != NULL) {
bus_release_resource(dev, SYS_RES_MEMORY,
PCIR_BAR(0), adapter->memory);
adapter->memory = NULL;
}
if (adapter->flash != NULL) {
bus_release_resource(dev, SYS_RES_MEMORY,
EM_FLASH, adapter->flash);
adapter->flash = NULL;
}
if (adapter->ioport != NULL)
bus_release_resource(dev, SYS_RES_IOPORT,
adapter->io_rid, adapter->ioport);
}
/* Setup MSI or MSI/X */
static int
em_setup_msix(if_ctx_t ctx)
{
struct adapter *adapter = iflib_get_softc(ctx);
if (adapter->hw.mac.type == e1000_82574) {
em_enable_vectors_82574(ctx);
}
return (0);
}
/*********************************************************************
*
* Initialize the hardware to a configuration
* as specified by the adapter structure.
*
**********************************************************************/
static void
lem_smartspeed(struct adapter *adapter)
{
u16 phy_tmp;
if (adapter->link_active || (adapter->hw.phy.type != e1000_phy_igp) ||
adapter->hw.mac.autoneg == 0 ||
(adapter->hw.phy.autoneg_advertised & ADVERTISE_1000_FULL) == 0)
return;
if (adapter->smartspeed == 0) {
/* If Master/Slave config fault is asserted twice,
* we assume back-to-back */
e1000_read_phy_reg(&adapter->hw, PHY_1000T_STATUS, &phy_tmp);
if (!(phy_tmp & SR_1000T_MS_CONFIG_FAULT))
return;
e1000_read_phy_reg(&adapter->hw, PHY_1000T_STATUS, &phy_tmp);
if (phy_tmp & SR_1000T_MS_CONFIG_FAULT) {
e1000_read_phy_reg(&adapter->hw,
PHY_1000T_CTRL, &phy_tmp);
if(phy_tmp & CR_1000T_MS_ENABLE) {
phy_tmp &= ~CR_1000T_MS_ENABLE;
e1000_write_phy_reg(&adapter->hw,
PHY_1000T_CTRL, phy_tmp);
adapter->smartspeed++;
if(adapter->hw.mac.autoneg &&
!e1000_copper_link_autoneg(&adapter->hw) &&
!e1000_read_phy_reg(&adapter->hw,
PHY_CONTROL, &phy_tmp)) {
phy_tmp |= (MII_CR_AUTO_NEG_EN |
MII_CR_RESTART_AUTO_NEG);
e1000_write_phy_reg(&adapter->hw,
PHY_CONTROL, phy_tmp);
}
}
}
return;
} else if(adapter->smartspeed == EM_SMARTSPEED_DOWNSHIFT) {
/* If still no link, perhaps using 2/3 pair cable */
e1000_read_phy_reg(&adapter->hw, PHY_1000T_CTRL, &phy_tmp);
phy_tmp |= CR_1000T_MS_ENABLE;
e1000_write_phy_reg(&adapter->hw, PHY_1000T_CTRL, phy_tmp);
if(adapter->hw.mac.autoneg &&
!e1000_copper_link_autoneg(&adapter->hw) &&
!e1000_read_phy_reg(&adapter->hw, PHY_CONTROL, &phy_tmp)) {
phy_tmp |= (MII_CR_AUTO_NEG_EN |
MII_CR_RESTART_AUTO_NEG);
e1000_write_phy_reg(&adapter->hw, PHY_CONTROL, phy_tmp);
}
}
/* Restart process after EM_SMARTSPEED_MAX iterations */
if(adapter->smartspeed++ == EM_SMARTSPEED_MAX)
adapter->smartspeed = 0;
}
/*********************************************************************
*
* Initialize the DMA Coalescing feature
*
**********************************************************************/
static void
igb_init_dmac(struct adapter *adapter, u32 pba)
{
device_t dev = adapter->dev;
struct e1000_hw *hw = &adapter->hw;
u32 dmac, reg = ~E1000_DMACR_DMAC_EN;
u16 hwm;
u16 max_frame_size;
if (hw->mac.type == e1000_i211)
return;
max_frame_size = adapter->shared->isc_max_frame_size;
if (hw->mac.type > e1000_82580) {
if (adapter->dmac == 0) { /* Disabling it */
E1000_WRITE_REG(hw, E1000_DMACR, reg);
return;
} else
device_printf(dev, "DMA Coalescing enabled\n");
/* Set starting threshold */
E1000_WRITE_REG(hw, E1000_DMCTXTH, 0);
hwm = 64 * pba - max_frame_size / 16;
if (hwm < 64 * (pba - 6))
hwm = 64 * (pba - 6);
reg = E1000_READ_REG(hw, E1000_FCRTC);
reg &= ~E1000_FCRTC_RTH_COAL_MASK;
reg |= ((hwm << E1000_FCRTC_RTH_COAL_SHIFT)
& E1000_FCRTC_RTH_COAL_MASK);
E1000_WRITE_REG(hw, E1000_FCRTC, reg);
dmac = pba - max_frame_size / 512;
if (dmac < pba - 10)
dmac = pba - 10;
reg = E1000_READ_REG(hw, E1000_DMACR);
reg &= ~E1000_DMACR_DMACTHR_MASK;
reg = ((dmac << E1000_DMACR_DMACTHR_SHIFT)
& E1000_DMACR_DMACTHR_MASK);
/* transition to L0x or L1 if available..*/
reg |= (E1000_DMACR_DMAC_EN | E1000_DMACR_DMAC_LX_MASK);
/* Check if status is 2.5Gb backplane connection
* before configuration of watchdog timer, which is
* in msec values in 12.8usec intervals
* watchdog timer= msec values in 32usec intervals
* for non 2.5Gb connection
*/
if (hw->mac.type == e1000_i354) {
int status = E1000_READ_REG(hw, E1000_STATUS);
if ((status & E1000_STATUS_2P5_SKU) &&
(!(status & E1000_STATUS_2P5_SKU_OVER)))
reg |= ((adapter->dmac * 5) >> 6);
else
reg |= (adapter->dmac >> 5);
} else {
reg |= (adapter->dmac >> 5);
}
E1000_WRITE_REG(hw, E1000_DMACR, reg);
E1000_WRITE_REG(hw, E1000_DMCRTRH, 0);
/* Set the interval before transition */
reg = E1000_READ_REG(hw, E1000_DMCTLX);
if (hw->mac.type == e1000_i350)
reg |= IGB_DMCTLX_DCFLUSH_DIS;
/*
** in 2.5Gb connection, TTLX unit is 0.4 usec
** which is 0x4*2 = 0xA. But delay is still 4 usec
*/
if (hw->mac.type == e1000_i354) {
int status = E1000_READ_REG(hw, E1000_STATUS);
if ((status & E1000_STATUS_2P5_SKU) &&
(!(status & E1000_STATUS_2P5_SKU_OVER)))
reg |= 0xA;
else
reg |= 0x4;
} else {
reg |= 0x4;
}
E1000_WRITE_REG(hw, E1000_DMCTLX, reg);
/* free space in tx packet buffer to wake from DMA coal */
E1000_WRITE_REG(hw, E1000_DMCTXTH, (IGB_TXPBSIZE -
(2 * max_frame_size)) >> 6);
/* make low power state decision controlled by DMA coal */
reg = E1000_READ_REG(hw, E1000_PCIEMISC);
reg &= ~E1000_PCIEMISC_LX_DECISION;
E1000_WRITE_REG(hw, E1000_PCIEMISC, reg);
} else if (hw->mac.type == e1000_82580) {
u32 reg = E1000_READ_REG(hw, E1000_PCIEMISC);
E1000_WRITE_REG(hw, E1000_PCIEMISC,
reg & ~E1000_PCIEMISC_LX_DECISION);
E1000_WRITE_REG(hw, E1000_DMACR, 0);
}
}
static void
em_reset(if_ctx_t ctx)
{
device_t dev = iflib_get_dev(ctx);
struct adapter *adapter = iflib_get_softc(ctx);
struct ifnet *ifp = iflib_get_ifp(ctx);
struct e1000_hw *hw = &adapter->hw;
u16 rx_buffer_size;
u32 pba;
INIT_DEBUGOUT("em_reset: begin");
/* Let the firmware know the OS is in control */
em_get_hw_control(adapter);
/* Set up smart power down as default off on newer adapters. */
if (!em_smart_pwr_down && (hw->mac.type == e1000_82571 ||
hw->mac.type == e1000_82572)) {
u16 phy_tmp = 0;
/* Speed up time to link by disabling smart power down. */
e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_tmp);
phy_tmp &= ~IGP02E1000_PM_SPD;
e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_tmp);
}
/*
* Packet Buffer Allocation (PBA)
* Writing PBA sets the receive portion of the buffer
* the remainder is used for the transmit buffer.
*/
switch (hw->mac.type) {
/* Total Packet Buffer on these is 48K */
case e1000_82571:
case e1000_82572:
case e1000_80003es2lan:
pba = E1000_PBA_32K; /* 32K for Rx, 16K for Tx */
break;
case e1000_82573: /* 82573: Total Packet Buffer is 32K */
pba = E1000_PBA_12K; /* 12K for Rx, 20K for Tx */
break;
case e1000_82574:
case e1000_82583:
pba = E1000_PBA_20K; /* 20K for Rx, 20K for Tx */
break;
case e1000_ich8lan:
pba = E1000_PBA_8K;
break;
case e1000_ich9lan:
case e1000_ich10lan:
/* Boost Receive side for jumbo frames */
if (adapter->hw.mac.max_frame_size > 4096)
pba = E1000_PBA_14K;
else
pba = E1000_PBA_10K;
break;
case e1000_pchlan:
case e1000_pch2lan:
case e1000_pch_lpt:
case e1000_pch_spt:
case e1000_pch_cnp:
case e1000_pch_tgp:
pba = E1000_PBA_26K;
break;
case e1000_82575:
pba = E1000_PBA_32K;
break;
case e1000_82576:
case e1000_vfadapt:
pba = E1000_READ_REG(hw, E1000_RXPBS);
pba &= E1000_RXPBS_SIZE_MASK_82576;
break;
case e1000_82580:
case e1000_i350:
case e1000_i354:
case e1000_vfadapt_i350:
pba = E1000_READ_REG(hw, E1000_RXPBS);
pba = e1000_rxpbs_adjust_82580(pba);
break;
case e1000_i210:
case e1000_i211:
pba = E1000_PBA_34K;
break;
default:
if (adapter->hw.mac.max_frame_size > 8192)
pba = E1000_PBA_40K; /* 40K for Rx, 24K for Tx */
else
pba = E1000_PBA_48K; /* 48K for Rx, 16K for Tx */
}
/* Special needs in case of Jumbo frames */
if ((hw->mac.type == e1000_82575) && (ifp->if_mtu > ETHERMTU)) {
u32 tx_space, min_tx, min_rx;
pba = E1000_READ_REG(hw, E1000_PBA);
tx_space = pba >> 16;
pba &= 0xffff;
min_tx = (adapter->hw.mac.max_frame_size +
sizeof(struct e1000_tx_desc) - ETHERNET_FCS_SIZE) * 2;
min_tx = roundup2(min_tx, 1024);
min_tx >>= 10;
min_rx = adapter->hw.mac.max_frame_size;
min_rx = roundup2(min_rx, 1024);
min_rx >>= 10;
if (tx_space < min_tx &&
((min_tx - tx_space) < pba)) {
pba = pba - (min_tx - tx_space);
/*
* if short on rx space, rx wins
* and must trump tx adjustment
*/
if (pba < min_rx)
pba = min_rx;
}
E1000_WRITE_REG(hw, E1000_PBA, pba);
}
if (hw->mac.type < igb_mac_min)
E1000_WRITE_REG(&adapter->hw, E1000_PBA, pba);
INIT_DEBUGOUT1("em_reset: pba=%dK",pba);
/*
* These parameters control the automatic generation (Tx) and
* response (Rx) to Ethernet PAUSE frames.
* - High water mark should allow for at least two frames to be
* received after sending an XOFF.
* - Low water mark works best when it is very near the high water mark.
* This allows the receiver to restart by sending XON when it has
* drained a bit. Here we use an arbitrary value of 1500 which will
* restart after one full frame is pulled from the buffer. There
* could be several smaller frames in the buffer and if so they will
* not trigger the XON until their total number reduces the buffer
* by 1500.
* - The pause time is fairly large at 1000 x 512ns = 512 usec.
*/
rx_buffer_size = (pba & 0xffff) << 10;
hw->fc.high_water = rx_buffer_size -
roundup2(adapter->hw.mac.max_frame_size, 1024);
hw->fc.low_water = hw->fc.high_water - 1500;
if (adapter->fc) /* locally set flow control value? */
hw->fc.requested_mode = adapter->fc;
else
hw->fc.requested_mode = e1000_fc_full;
if (hw->mac.type == e1000_80003es2lan)
hw->fc.pause_time = 0xFFFF;
else
hw->fc.pause_time = EM_FC_PAUSE_TIME;
hw->fc.send_xon = TRUE;
/* Device specific overrides/settings */
switch (hw->mac.type) {
case e1000_pchlan:
/* Workaround: no TX flow ctrl for PCH */
hw->fc.requested_mode = e1000_fc_rx_pause;
hw->fc.pause_time = 0xFFFF; /* override */
if (if_getmtu(ifp) > ETHERMTU) {
hw->fc.high_water = 0x3500;
hw->fc.low_water = 0x1500;
} else {
hw->fc.high_water = 0x5000;
hw->fc.low_water = 0x3000;
}
hw->fc.refresh_time = 0x1000;
break;
case e1000_pch2lan:
case e1000_pch_lpt:
case e1000_pch_spt:
case e1000_pch_cnp:
case e1000_pch_tgp:
hw->fc.high_water = 0x5C20;
hw->fc.low_water = 0x5048;
hw->fc.pause_time = 0x0650;
hw->fc.refresh_time = 0x0400;
/* Jumbos need adjusted PBA */
if (if_getmtu(ifp) > ETHERMTU)
E1000_WRITE_REG(hw, E1000_PBA, 12);
else
E1000_WRITE_REG(hw, E1000_PBA, 26);
break;
case e1000_82575:
case e1000_82576:
/* 8-byte granularity */
hw->fc.low_water = hw->fc.high_water - 8;
break;
case e1000_82580:
case e1000_i350:
case e1000_i354:
case e1000_i210:
case e1000_i211:
case e1000_vfadapt:
case e1000_vfadapt_i350:
/* 16-byte granularity */
hw->fc.low_water = hw->fc.high_water - 16;
break;
case e1000_ich9lan:
case e1000_ich10lan:
if (if_getmtu(ifp) > ETHERMTU) {
hw->fc.high_water = 0x2800;
hw->fc.low_water = hw->fc.high_water - 8;
break;
}
/* FALLTHROUGH */
default:
if (hw->mac.type == e1000_80003es2lan)
hw->fc.pause_time = 0xFFFF;
break;
}
/* Issue a global reset */
e1000_reset_hw(hw);
if (adapter->hw.mac.type >= igb_mac_min) {
E1000_WRITE_REG(hw, E1000_WUC, 0);
} else {
E1000_WRITE_REG(hw, E1000_WUFC, 0);
em_disable_aspm(adapter);
}
if (adapter->flags & IGB_MEDIA_RESET) {
e1000_setup_init_funcs(hw, TRUE);
e1000_get_bus_info(hw);
adapter->flags &= ~IGB_MEDIA_RESET;
}
/* and a re-init */
if (e1000_init_hw(hw) < 0) {
device_printf(dev, "Hardware Initialization Failed\n");
return;
}
if (adapter->hw.mac.type >= igb_mac_min)
igb_init_dmac(adapter, pba);
E1000_WRITE_REG(hw, E1000_VET, ETHERTYPE_VLAN);
e1000_get_phy_info(hw);
e1000_check_for_link(hw);
}
#define RSSKEYLEN 10
static void
em_initialize_rss_mapping(struct adapter *adapter)
{
uint8_t rss_key[4 * RSSKEYLEN];
uint32_t reta = 0;
struct e1000_hw *hw = &adapter->hw;
int i;
/*
* Configure RSS key
*/
arc4rand(rss_key, sizeof(rss_key), 0);
for (i = 0; i < RSSKEYLEN; ++i) {
uint32_t rssrk = 0;
rssrk = EM_RSSRK_VAL(rss_key, i);
E1000_WRITE_REG(hw,E1000_RSSRK(i), rssrk);
}
/*
* Configure RSS redirect table in following fashion:
* (hash & ring_cnt_mask) == rdr_table[(hash & rdr_table_mask)]
*/
for (i = 0; i < sizeof(reta); ++i) {
uint32_t q;
q = (i % adapter->rx_num_queues) << 7;
reta |= q << (8 * i);
}
for (i = 0; i < 32; ++i)
E1000_WRITE_REG(hw, E1000_RETA(i), reta);
E1000_WRITE_REG(hw, E1000_MRQC, E1000_MRQC_RSS_ENABLE_2Q |
E1000_MRQC_RSS_FIELD_IPV4_TCP |
E1000_MRQC_RSS_FIELD_IPV4 |
E1000_MRQC_RSS_FIELD_IPV6_TCP_EX |
E1000_MRQC_RSS_FIELD_IPV6_EX |
E1000_MRQC_RSS_FIELD_IPV6);
}
static void
igb_initialize_rss_mapping(struct adapter *adapter)
{
struct e1000_hw *hw = &adapter->hw;
int i;
int queue_id;
u32 reta;
u32 rss_key[10], mrqc, shift = 0;
/* XXX? */
if (adapter->hw.mac.type == e1000_82575)
shift = 6;
/*
* The redirection table controls which destination
* queue each bucket redirects traffic to.
* Each DWORD represents four queues, with the LSB
* being the first queue in the DWORD.
*
* This just allocates buckets to queues using round-robin
* allocation.
*
* NOTE: It Just Happens to line up with the default
* RSS allocation method.
*/
/* Warning FM follows */
reta = 0;
for (i = 0; i < 128; i++) {
#ifdef RSS
queue_id = rss_get_indirection_to_bucket(i);
/*
* If we have more queues than buckets, we'll
* end up mapping buckets to a subset of the
* queues.
*
* If we have more buckets than queues, we'll
* end up instead assigning multiple buckets
* to queues.
*
* Both are suboptimal, but we need to handle
* the case so we don't go out of bounds
* indexing arrays and such.
*/
queue_id = queue_id % adapter->rx_num_queues;
#else
queue_id = (i % adapter->rx_num_queues);
#endif
/* Adjust if required */
queue_id = queue_id << shift;
/*
* The low 8 bits are for hash value (n+0);
* The next 8 bits are for hash value (n+1), etc.
*/
reta = reta >> 8;
reta = reta | ( ((uint32_t) queue_id) << 24);
if ((i & 3) == 3) {
E1000_WRITE_REG(hw, E1000_RETA(i >> 2), reta);
reta = 0;
}
}
/* Now fill in hash table */
/*
* MRQC: Multiple Receive Queues Command
* Set queuing to RSS control, number depends on the device.
*/
mrqc = E1000_MRQC_ENABLE_RSS_8Q;
#ifdef RSS
/* XXX ew typecasting */
rss_getkey((uint8_t *) &rss_key);
#else
arc4rand(&rss_key, sizeof(rss_key), 0);
#endif
for (i = 0; i < 10; i++)
E1000_WRITE_REG_ARRAY(hw, E1000_RSSRK(0), i, rss_key[i]);
/*
* Configure the RSS fields to hash upon.
*/
mrqc |= (E1000_MRQC_RSS_FIELD_IPV4 |
E1000_MRQC_RSS_FIELD_IPV4_TCP);
mrqc |= (E1000_MRQC_RSS_FIELD_IPV6 |
E1000_MRQC_RSS_FIELD_IPV6_TCP);
mrqc |=( E1000_MRQC_RSS_FIELD_IPV4_UDP |
E1000_MRQC_RSS_FIELD_IPV6_UDP);
mrqc |=( E1000_MRQC_RSS_FIELD_IPV6_UDP_EX |
E1000_MRQC_RSS_FIELD_IPV6_TCP_EX);
E1000_WRITE_REG(hw, E1000_MRQC, mrqc);
}
/*********************************************************************
*
* Setup networking device structure and register an interface.
*
**********************************************************************/
static int
em_setup_interface(if_ctx_t ctx)
{
struct ifnet *ifp = iflib_get_ifp(ctx);
struct adapter *adapter = iflib_get_softc(ctx);
if_softc_ctx_t scctx = adapter->shared;
uint64_t cap = 0;
INIT_DEBUGOUT("em_setup_interface: begin");
/* TSO parameters */
if_sethwtsomax(ifp, IP_MAXPACKET);
/* Take m_pullup(9)'s in em_xmit() w/ TSO into acount. */
if_sethwtsomaxsegcount(ifp, EM_MAX_SCATTER - 5);
if_sethwtsomaxsegsize(ifp, EM_TSO_SEG_SIZE);
/* Single Queue */
if (adapter->tx_num_queues == 1) {
if_setsendqlen(ifp, scctx->isc_ntxd[0] - 1);
if_setsendqready(ifp);
}
cap = IFCAP_HWCSUM | IFCAP_VLAN_HWCSUM | IFCAP_TSO4;
cap |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWTSO | IFCAP_VLAN_MTU;
/*
* Tell the upper layer(s) we
* support full VLAN capability
*/
if_setifheaderlen(ifp, sizeof(struct ether_vlan_header));
if_setcapabilitiesbit(ifp, cap, 0);
/*
* Don't turn this on by default, if vlans are
* created on another pseudo device (eg. lagg)
* then vlan events are not passed thru, breaking
* operation, but with HW FILTER off it works. If
* using vlans directly on the em driver you can
* enable this and get full hardware tag filtering.
*/
if_setcapabilitiesbit(ifp, IFCAP_VLAN_HWFILTER,0);
/* Enable only WOL MAGIC by default */
if (adapter->wol) {
if_setcapenablebit(ifp, IFCAP_WOL_MAGIC,
IFCAP_WOL_MCAST| IFCAP_WOL_UCAST);
} else {
if_setcapenablebit(ifp, 0, IFCAP_WOL_MAGIC |
IFCAP_WOL_MCAST| IFCAP_WOL_UCAST);
}
/*
* Specify the media types supported by this adapter and register
* callbacks to update media and link information
*/
if ((adapter->hw.phy.media_type == e1000_media_type_fiber) ||
(adapter->hw.phy.media_type == e1000_media_type_internal_serdes)) {
u_char fiber_type = IFM_1000_SX; /* default type */
if (adapter->hw.mac.type == e1000_82545)
fiber_type = IFM_1000_LX;
ifmedia_add(adapter->media, IFM_ETHER | fiber_type | IFM_FDX, 0, NULL);
ifmedia_add(adapter->media, IFM_ETHER | fiber_type, 0, NULL);
} else {
ifmedia_add(adapter->media, IFM_ETHER | IFM_10_T, 0, NULL);
ifmedia_add(adapter->media, IFM_ETHER | IFM_10_T | IFM_FDX, 0, NULL);
ifmedia_add(adapter->media, IFM_ETHER | IFM_100_TX, 0, NULL);
ifmedia_add(adapter->media, IFM_ETHER | IFM_100_TX | IFM_FDX, 0, NULL);
if (adapter->hw.phy.type != e1000_phy_ife) {
ifmedia_add(adapter->media, IFM_ETHER | IFM_1000_T | IFM_FDX, 0, NULL);
ifmedia_add(adapter->media, IFM_ETHER | IFM_1000_T, 0, NULL);
}
}
ifmedia_add(adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL);
ifmedia_set(adapter->media, IFM_ETHER | IFM_AUTO);
return (0);
}
static int
em_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int ntxqs, int ntxqsets)
{
struct adapter *adapter = iflib_get_softc(ctx);
if_softc_ctx_t scctx = adapter->shared;
int error = E1000_SUCCESS;
struct em_tx_queue *que;
int i, j;
MPASS(adapter->tx_num_queues > 0);
MPASS(adapter->tx_num_queues == ntxqsets);
/* First allocate the top level queue structs */
if (!(adapter->tx_queues =
(struct em_tx_queue *) malloc(sizeof(struct em_tx_queue) *
adapter->tx_num_queues, M_DEVBUF, M_NOWAIT | M_ZERO))) {
device_printf(iflib_get_dev(ctx), "Unable to allocate queue memory\n");
return(ENOMEM);
}
for (i = 0, que = adapter->tx_queues; i < adapter->tx_num_queues; i++, que++) {
/* Set up some basics */
struct tx_ring *txr = &que->txr;
txr->adapter = que->adapter = adapter;
que->me = txr->me = i;
/* Allocate report status array */
if (!(txr->tx_rsq = (qidx_t *) malloc(sizeof(qidx_t) * scctx->isc_ntxd[0], M_DEVBUF, M_NOWAIT | M_ZERO))) {
device_printf(iflib_get_dev(ctx), "failed to allocate rs_idxs memory\n");
error = ENOMEM;
goto fail;
}
for (j = 0; j < scctx->isc_ntxd[0]; j++)
txr->tx_rsq[j] = QIDX_INVALID;
/* get the virtual and physical address of the hardware queues */
txr->tx_base = (struct e1000_tx_desc *)vaddrs[i*ntxqs];
txr->tx_paddr = paddrs[i*ntxqs];
}
device_printf(iflib_get_dev(ctx), "allocated for %d tx_queues\n", adapter->tx_num_queues);
return (0);
fail:
em_if_queues_free(ctx);
return (error);
}
static int
em_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nrxqs, int nrxqsets)
{
struct adapter *adapter = iflib_get_softc(ctx);
int error = E1000_SUCCESS;
struct em_rx_queue *que;
int i;
MPASS(adapter->rx_num_queues > 0);
MPASS(adapter->rx_num_queues == nrxqsets);
/* First allocate the top level queue structs */
if (!(adapter->rx_queues =
(struct em_rx_queue *) malloc(sizeof(struct em_rx_queue) *
adapter->rx_num_queues, M_DEVBUF, M_NOWAIT | M_ZERO))) {
device_printf(iflib_get_dev(ctx), "Unable to allocate queue memory\n");
error = ENOMEM;
goto fail;
}
for (i = 0, que = adapter->rx_queues; i < nrxqsets; i++, que++) {
/* Set up some basics