212f7b1dac
The current implementation of igb uses only part of a advanced Tx context descriptor and first data descriptor because it misses some features and sniffs the trait of the packet instead of respecting the packet type specified in the descriptor. However, we will certainly need the entire Tx context descriptor when we update igb to respect these ignored fields. Save the entire context descriptor and first data descriptor except the buffer address to prepare for such a change. This also introduces the distinction of contexts with different indexes, which was not present in e1000e but in igb. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech> Signed-off-by: Jason Wang <jasowang@redhat.com>
145 lines
3.5 KiB
C
145 lines
3.5 KiB
C
/*
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* Core code for QEMU igb emulation
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*
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* Datasheet:
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* https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/82576eg-gbe-datasheet.pdf
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*
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* Copyright (c) 2020-2023 Red Hat, Inc.
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* Copyright (c) 2015 Ravello Systems LTD (http://ravellosystems.com)
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* Developed by Daynix Computing LTD (http://www.daynix.com)
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*
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* Authors:
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* Akihiko Odaki <akihiko.odaki@daynix.com>
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* Gal Hammmer <gal.hammer@sap.com>
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* Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
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* Dmitry Fleytman <dmitry@daynix.com>
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* Leonid Bloch <leonid@daynix.com>
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* Yan Vugenfirer <yan@daynix.com>
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*
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* Based on work done by:
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* Nir Peleg, Tutis Systems Ltd. for Qumranet Inc.
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* Copyright (c) 2008 Qumranet
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* Based on work done by:
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* Copyright (c) 2007 Dan Aloni
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* Copyright (c) 2004 Antony T Curtis
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HW_NET_IGB_CORE_H
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#define HW_NET_IGB_CORE_H
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#define E1000E_MAC_SIZE (0x8000)
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#define IGB_EEPROM_SIZE (1024)
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#define IGB_INTR_NUM (25)
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#define IGB_MSIX_VEC_NUM (10)
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#define IGBVF_MSIX_VEC_NUM (3)
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#define IGB_NUM_QUEUES (16)
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typedef struct IGBCore IGBCore;
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enum { PHY_R = BIT(0),
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PHY_W = BIT(1),
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PHY_RW = PHY_R | PHY_W };
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typedef struct IGBIntrDelayTimer_st {
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QEMUTimer *timer;
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bool running;
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uint32_t delay_reg;
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uint32_t delay_resolution_ns;
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IGBCore *core;
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} IGBIntrDelayTimer;
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struct IGBCore {
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uint32_t mac[E1000E_MAC_SIZE];
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uint16_t phy[MAX_PHY_REG_ADDRESS + 1];
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uint16_t eeprom[IGB_EEPROM_SIZE];
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uint8_t rx_desc_len;
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QEMUTimer *autoneg_timer;
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struct igb_tx {
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struct e1000_adv_tx_context_desc ctx[2];
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uint32_t first_cmd_type_len;
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uint32_t first_olinfo_status;
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bool first;
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bool skip_cp;
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struct NetTxPkt *tx_pkt;
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} tx[IGB_NUM_QUEUES];
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struct NetRxPkt *rx_pkt;
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bool has_vnet;
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int max_queue_num;
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IGBIntrDelayTimer eitr[IGB_INTR_NUM];
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VMChangeStateEntry *vmstate;
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uint32_t eitr_guest_value[IGB_INTR_NUM];
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uint8_t permanent_mac[ETH_ALEN];
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NICState *owner_nic;
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PCIDevice *owner;
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void (*owner_start_recv)(PCIDevice *d);
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int64_t timadj;
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};
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void
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igb_core_write(IGBCore *core, hwaddr addr, uint64_t val, unsigned size);
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uint64_t
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igb_core_read(IGBCore *core, hwaddr addr, unsigned size);
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void
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igb_core_pci_realize(IGBCore *regs,
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const uint16_t *eeprom_templ,
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uint32_t eeprom_size,
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const uint8_t *macaddr);
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void
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igb_core_reset(IGBCore *core);
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void
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igb_core_pre_save(IGBCore *core);
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int
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igb_core_post_load(IGBCore *core);
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void
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igb_core_set_link_status(IGBCore *core);
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void
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igb_core_pci_uninit(IGBCore *core);
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bool
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igb_can_receive(IGBCore *core);
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ssize_t
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igb_receive(IGBCore *core, const uint8_t *buf, size_t size);
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ssize_t
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igb_receive_iov(IGBCore *core, const struct iovec *iov, int iovcnt);
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void
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igb_start_recv(IGBCore *core);
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#endif
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