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/*
* Core code for QEMU e1000e emulation
*
* Software developer's manuals:
* http://www.intel.com/content/dam/doc/datasheet/82574l-gbe-controller-datasheet.pdf
*
* Copyright (c) 2015 Ravello Systems LTD (http://ravellosystems.com)
* Developed by Daynix Computing LTD (http://www.daynix.com)
*
* Authors:
* Dmitry Fleytman <dmitry@daynix.com>
* Leonid Bloch <leonid@daynix.com>
* Yan Vugenfirer <yan@daynix.com>
*
* Based on work done by:
* Nir Peleg, Tutis Systems Ltd. for Qumranet Inc.
* Copyright (c) 2008 Qumranet
* Based on work done by:
* Copyright (c) 2007 Dan Aloni
* Copyright (c) 2004 Antony T Curtis
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#define E1000E_PHY_PAGE_SIZE (0x20)
#define E1000E_PHY_PAGES (0x07)
#define E1000E_MAC_SIZE (0x8000)
#define E1000E_EEPROM_SIZE (64)
#define E1000E_MSIX_VEC_NUM (5)
#define E1000E_NUM_QUEUES (2)
typedef struct E1000Core E1000ECore;
enum { PHY_R = BIT(0),
PHY_W = BIT(1),
PHY_RW = PHY_R | PHY_W,
PHY_ANYPAGE = BIT(2) };
typedef struct E1000IntrDelayTimer_st {
QEMUTimer *timer;
bool running;
uint32_t delay_reg;
uint32_t delay_resolution_ns;
E1000ECore *core;
} E1000IntrDelayTimer;
struct E1000Core {
uint32_t mac[E1000E_MAC_SIZE];
uint16_t phy[E1000E_PHY_PAGES][E1000E_PHY_PAGE_SIZE];
uint16_t eeprom[E1000E_EEPROM_SIZE];
uint32_t rxbuf_sizes[E1000_PSRCTL_BUFFS_PER_DESC];
uint32_t rx_desc_buf_size;
uint32_t rxbuf_min_shift;
uint8_t rx_desc_len;
QEMUTimer *autoneg_timer;
struct e1000e_tx {
e1000x_txd_props props;
bool skip_cp;
struct NetTxPkt *tx_pkt;
} tx[E1000E_NUM_QUEUES];
struct NetRxPkt *rx_pkt;
bool has_vnet;
int max_queue_num;
/* Interrupt moderation management */
uint32_t delayed_causes;
E1000IntrDelayTimer radv;
E1000IntrDelayTimer rdtr;
E1000IntrDelayTimer raid;
E1000IntrDelayTimer tadv;
E1000IntrDelayTimer tidv;
E1000IntrDelayTimer itr;
bool itr_intr_pending;
E1000IntrDelayTimer eitr[E1000E_MSIX_VEC_NUM];
bool eitr_intr_pending[E1000E_MSIX_VEC_NUM];
VMChangeStateEntry *vmstate;
uint32_t itr_guest_value;
uint32_t eitr_guest_value[E1000E_MSIX_VEC_NUM];
uint16_t vet;
uint8_t permanent_mac[ETH_ALEN];
NICState *owner_nic;
PCIDevice *owner;
void (*owner_start_recv)(PCIDevice *d);
};
void
e1000e_core_write(E1000ECore *core, hwaddr addr, uint64_t val, unsigned size);
uint64_t
e1000e_core_read(E1000ECore *core, hwaddr addr, unsigned size);
void
e1000e_core_pci_realize(E1000ECore *regs,
const uint16_t *eeprom_templ,
uint32_t eeprom_size,
const uint8_t *macaddr);
void
e1000e_core_reset(E1000ECore *core);
void
e1000e_core_pre_save(E1000ECore *core);
int
e1000e_core_post_load(E1000ECore *core);
void
e1000e_core_set_link_status(E1000ECore *core);
void
e1000e_core_pci_uninit(E1000ECore *core);
int
e1000e_can_receive(E1000ECore *core);
ssize_t
e1000e_receive(E1000ECore *core, const uint8_t *buf, size_t size);
ssize_t
e1000e_receive_iov(E1000ECore *core, const struct iovec *iov, int iovcnt);
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