/*- * SPDX-License-Identifier: BSD-2-Clause * * Copyright (c) 2001-2024, Intel Corporation * Copyright (c) 2016 Nicole Graziano * Copyright (c) 2021-2024 Rubicon Communications, LLC (Netgate) * * 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. */ #include "opt_ddb.h" #include "opt_inet.h" #include "opt_inet6.h" #include "opt_rss.h" #ifdef HAVE_KERNEL_OPTION_HEADERS #include "opt_device_polling.h" #endif #include #include #ifdef DDB #include #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "igc_api.h" #include "igc_i225.h" #include "ifdi_if.h" #ifndef _IGC_H_DEFINED_ #define _IGC_H_DEFINED_ /* Tunables */ /* * IGC_MAX_TXD: Maximum number of Transmit Descriptors * Valid Range: 128-4096 * Default Value: 1024 * This value is the number of transmit descriptors allocated by the driver. * Increasing this value allows the driver to queue more transmits. Each * descriptor is 16 bytes. * Since TDLEN should be multiple of 128bytes, the number of transmit * desscriptors should meet the following condition. * (num_tx_desc * sizeof(struct igc_tx_desc)) % 128 == 0 */ #define IGC_MIN_TXD 128 #define IGC_MAX_TXD 4096 #define IGC_DEFAULT_TXD 1024 #define IGC_DEFAULT_MULTI_TXD 4096 #define IGC_MAX_TXD 4096 /* * IGC_MAX_RXD - Maximum number of receive Descriptors * Valid Range: 128-4096 * Default Value: 1024 * This value is the number of receive descriptors allocated by the driver. * Increasing this value allows the driver to buffer more incoming packets. * Each descriptor is 16 bytes. A receive buffer is also allocated for each * descriptor. The maximum MTU size is 16110. * Since TDLEN should be multiple of 128bytes, the number of transmit * desscriptors should meet the following condition. * (num_tx_desc * sizeof(struct igc_tx_desc)) % 128 == 0 */ #define IGC_MIN_RXD 128 #define IGC_MAX_RXD 4096 #define IGC_DEFAULT_RXD 1024 #define IGC_DEFAULT_MULTI_RXD 4096 #define IGC_MAX_RXD 4096 /* * This parameter controls whether or not autonegotation is enabled. * 0 - Disable autonegotiation * 1 - Enable autonegotiation */ #define DO_AUTO_NEG true /* Tunables -- End */ #define AUTONEG_ADV_DEFAULT (ADVERTISE_10_HALF | ADVERTISE_10_FULL | \ ADVERTISE_100_HALF | ADVERTISE_100_FULL | \ ADVERTISE_1000_FULL | ADVERTISE_2500_FULL) #define AUTO_ALL_MODES 0 /* * Micellaneous constants */ #define MAX_NUM_MULTICAST_ADDRESSES 128 #define IGC_FC_PAUSE_TIME 0x0680 #define IGC_TXPBSIZE 20408 #define IGC_PKTTYPE_MASK 0x0000FFF0 #define IGC_DMCTLX_DCFLUSH_DIS 0x80000000 /* Disable DMA Coalesce Flush */ #define IGC_RX_PTHRESH 8 #define IGC_RX_HTHRESH 8 #define IGC_RX_WTHRESH 4 #define IGC_TX_PTHRESH 8 #define IGC_TX_HTHRESH 1 /* Define the interrupt rates and EITR helpers */ #define IGC_INTS_4K 4000 #define IGC_INTS_20K 20000 #define IGC_INTS_70K 70000 #define IGC_INTS_DEFAULT 8000 #define IGC_EITR_DIVIDEND 1000000 #define IGC_EITR_SHIFT 2 #define IGC_QVECTOR_MASK 0x7FFC #define IGC_INTS_TO_EITR(i) (((IGC_EITR_DIVIDEND/i) & IGC_QVECTOR_MASK) << \ IGC_EITR_SHIFT) /* * TDBA/RDBA should be aligned on 16 byte boundary. But TDLEN/RDLEN should be * multiple of 128 bytes. So we align TDBA/RDBA on 128 byte boundary. This will * also optimize cache line size effect. H/W supports up to cache line size 128. */ #define IGC_DBA_ALIGN 128 #define IGC_MSIX_BAR 3 /* Defines for printing debug information */ #define DEBUG_INIT 0 #define DEBUG_IOCTL 0 #define DEBUG_HW 0 #define INIT_DEBUGOUT(S) if (DEBUG_INIT) printf(S "\n") #define INIT_DEBUGOUT1(S, A) if (DEBUG_INIT) printf(S "\n", A) #define INIT_DEBUGOUT2(S, A, B) if (DEBUG_INIT) printf(S "\n", A, B) #define IOCTL_DEBUGOUT(S) if (DEBUG_IOCTL) printf(S "\n") #define IOCTL_DEBUGOUT1(S, A) if (DEBUG_IOCTL) printf(S "\n", A) #define IOCTL_DEBUGOUT2(S, A, B) if (DEBUG_IOCTL) printf(S "\n", A, B) #define HW_DEBUGOUT(S) if (DEBUG_HW) printf(S "\n") #define HW_DEBUGOUT1(S, A) if (DEBUG_HW) printf(S "\n", A) #define HW_DEBUGOUT2(S, A, B) if (DEBUG_HW) printf(S "\n", A, B) #define IGC_MAX_SCATTER 40 #define IGC_VFTA_SIZE 128 #define IGC_TSO_SIZE 65535 #define IGC_TSO_SEG_SIZE 4096 /* Max dma segment size */ #define IGC_CSUM_OFFLOAD (CSUM_IP | CSUM_IP_UDP | CSUM_IP_TCP | \ CSUM_IP_SCTP | CSUM_IP6_UDP | CSUM_IP6_TCP | \ CSUM_IP6_SCTP) /* Offload bits in mbuf flag */ struct igc_softc; struct igc_int_delay_info { struct igc_softc *sc; /* Back-pointer to the softc struct */ int offset; /* Register offset to read/write */ int value; /* Current value in usecs */ }; /* * The transmit ring, one per tx queue */ struct tx_ring { struct igc_softc *sc; struct igc_tx_desc *tx_base; uint64_t tx_paddr; qidx_t *tx_rsq; uint8_t me; qidx_t tx_rs_cidx; qidx_t tx_rs_pidx; qidx_t tx_cidx_processed; /* Interrupt resources */ void *tag; struct resource *res; /* Soft stats */ unsigned long tx_irq; unsigned long tx_packets; unsigned long tx_bytes; /* Saved csum offloading context information */ int csum_flags; int csum_lhlen; int csum_iphlen; int csum_thlen; int csum_mss; int csum_pktlen; uint32_t csum_txd_upper; uint32_t csum_txd_lower; /* last field */ }; /* * The Receive ring, one per rx queue */ struct rx_ring { struct igc_softc *sc; struct igc_rx_queue *que; u32 me; u32 payload; union igc_rx_desc_extended *rx_base; uint64_t rx_paddr; /* Interrupt resources */ void *tag; struct resource *res; /* Soft stats */ unsigned long rx_irq; unsigned long rx_discarded; unsigned long rx_packets; unsigned long rx_bytes; /* Next requested EITR latency */ u8 rx_nextlatency; }; struct igc_tx_queue { struct igc_softc *sc; u32 msix; u32 eims; /* This queue's EIMS bit */ u32 me; struct tx_ring txr; }; struct igc_rx_queue { struct igc_softc *sc; u32 me; u32 msix; u32 eims; u32 eitr_setting; struct rx_ring rxr; u64 irqs; struct if_irq que_irq; }; /* Our softc structure */ struct igc_softc { struct ifnet *ifp; struct igc_hw hw; if_softc_ctx_t shared; if_ctx_t ctx; #define tx_num_queues shared->isc_ntxqsets #define rx_num_queues shared->isc_nrxqsets #define intr_type shared->isc_intr /* FreeBSD operating-system-specific structures. */ struct igc_osdep osdep; device_t dev; struct cdev *led_dev; struct igc_tx_queue *tx_queues; struct igc_rx_queue *rx_queues; struct if_irq irq; struct resource *memory; struct resource *flash; struct resource *ioport; struct resource *res; void *tag; u32 linkvec; u32 ivars; struct ifmedia *media; int msix; int if_flags; int igc_insert_vlan_header; u32 ims; u32 flags; /* Task for FAST handling */ struct grouptask link_task; u32 txd_cmd; u32 rx_mbuf_sz; int enable_aim; /* Management and WOL features */ u32 wol; /* Multicast array memory */ u8 *mta; /* Info about the interface */ u16 link_active; u16 fc; u16 link_speed; u16 link_duplex; u32 smartspeed; u32 dmac; u32 pba; int link_mask; u64 que_mask; struct igc_fw_version fw_ver; struct igc_int_delay_info tx_int_delay; struct igc_int_delay_info tx_abs_int_delay; struct igc_int_delay_info rx_int_delay; struct igc_int_delay_info rx_abs_int_delay; struct igc_int_delay_info tx_itr; /* Misc stats maintained by the driver */ unsigned long dropped_pkts; unsigned long link_irq; unsigned long rx_overruns; unsigned long watchdog_events; struct igc_hw_stats stats; u16 vf_ifp; }; void igc_dump_rs(struct igc_softc *); #define IGC_RSSRK_SIZE 4 #define IGC_RSSRK_VAL(key, i) (key[(i) * IGC_RSSRK_SIZE] | \ key[(i) * IGC_RSSRK_SIZE + 1] << 8 | \ key[(i) * IGC_RSSRK_SIZE + 2] << 16 | \ key[(i) * IGC_RSSRK_SIZE + 3] << 24) #endif /* _IGC_H_DEFINED_ */