diff options
Diffstat (limited to 'hw/vmxnet3.c')
| -rw-r--r-- | hw/vmxnet3.c | 2472 |
1 files changed, 0 insertions, 2472 deletions
diff --git a/hw/vmxnet3.c b/hw/vmxnet3.c deleted file mode 100644 index 1e18168e0b..0000000000 --- a/hw/vmxnet3.c +++ /dev/null @@ -1,2472 +0,0 @@ -/* - * QEMU VMWARE VMXNET3 paravirtual NIC - * - * Copyright (c) 2012 Ravello Systems LTD (http://ravellosystems.com) - * - * Developed by Daynix Computing LTD (http://www.daynix.com) - * - * Authors: - * Dmitry Fleytman <dmitry@daynix.com> - * Tamir Shomer <tamirs@daynix.com> - * Yan Vugenfirer <yan@daynix.com> - * - * This work is licensed under the terms of the GNU GPL, version 2. - * See the COPYING file in the top-level directory. - * - */ - -#include "hw.h" -#include "pci/pci.h" -#include "net/net.h" -#include "virtio-net.h" -#include "net/tap.h" -#include "net/checksum.h" -#include "sysemu/sysemu.h" -#include "qemu-common.h" -#include "qemu/bswap.h" -#include "pci/msix.h" -#include "pci/msi.h" - -#include "vmxnet3.h" -#include "vmxnet_debug.h" -#include "vmware_utils.h" -#include "vmxnet_tx_pkt.h" -#include "vmxnet_rx_pkt.h" - -#define PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION 0x1 -#define VMXNET3_MSIX_BAR_SIZE 0x2000 - -#define VMXNET3_BAR0_IDX (0) -#define VMXNET3_BAR1_IDX (1) -#define VMXNET3_MSIX_BAR_IDX (2) - -#define VMXNET3_OFF_MSIX_TABLE (0x000) -#define VMXNET3_OFF_MSIX_PBA (0x800) - -/* Link speed in Mbps should be shifted by 16 */ -#define VMXNET3_LINK_SPEED (1000 << 16) - -/* Link status: 1 - up, 0 - down. */ -#define VMXNET3_LINK_STATUS_UP 0x1 - -/* Least significant bit should be set for revision and version */ -#define VMXNET3_DEVICE_VERSION 0x1 -#define VMXNET3_DEVICE_REVISION 0x1 - -/* Macros for rings descriptors access */ -#define VMXNET3_READ_TX_QUEUE_DESCR8(dpa, field) \ - (vmw_shmem_ld8(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field))) - -#define VMXNET3_WRITE_TX_QUEUE_DESCR8(dpa, field, value) \ - (vmw_shmem_st8(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field, value))) - -#define VMXNET3_READ_TX_QUEUE_DESCR32(dpa, field) \ - (vmw_shmem_ld32(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field))) - -#define VMXNET3_WRITE_TX_QUEUE_DESCR32(dpa, field, value) \ - (vmw_shmem_st32(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value)) - -#define VMXNET3_READ_TX_QUEUE_DESCR64(dpa, field) \ - (vmw_shmem_ld64(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field))) - -#define VMXNET3_WRITE_TX_QUEUE_DESCR64(dpa, field, value) \ - (vmw_shmem_st64(dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value)) - -#define VMXNET3_READ_RX_QUEUE_DESCR64(dpa, field) \ - (vmw_shmem_ld64(dpa + offsetof(struct Vmxnet3_RxQueueDesc, field))) - -#define VMXNET3_READ_RX_QUEUE_DESCR32(dpa, field) \ - (vmw_shmem_ld32(dpa + offsetof(struct Vmxnet3_RxQueueDesc, field))) - -#define VMXNET3_WRITE_RX_QUEUE_DESCR64(dpa, field, value) \ - (vmw_shmem_st64(dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value)) - -#define VMXNET3_WRITE_RX_QUEUE_DESCR8(dpa, field, value) \ - (vmw_shmem_st8(dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value)) - -/* Macros for guest driver shared area access */ -#define VMXNET3_READ_DRV_SHARED64(shpa, field) \ - (vmw_shmem_ld64(shpa + offsetof(struct Vmxnet3_DriverShared, field))) - -#define VMXNET3_READ_DRV_SHARED32(shpa, field) \ - (vmw_shmem_ld32(shpa + offsetof(struct Vmxnet3_DriverShared, field))) - -#define VMXNET3_WRITE_DRV_SHARED32(shpa, field, val) \ - (vmw_shmem_st32(shpa + offsetof(struct Vmxnet3_DriverShared, field), val)) - -#define VMXNET3_READ_DRV_SHARED16(shpa, field) \ - (vmw_shmem_ld16(shpa + offsetof(struct Vmxnet3_DriverShared, field))) - -#define VMXNET3_READ_DRV_SHARED8(shpa, field) \ - (vmw_shmem_ld8(shpa + offsetof(struct Vmxnet3_DriverShared, field))) - -#define VMXNET3_READ_DRV_SHARED(shpa, field, b, l) \ - (vmw_shmem_read(shpa + offsetof(struct Vmxnet3_DriverShared, field), b, l)) - -#define VMXNET_FLAG_IS_SET(field, flag) (((field) & (flag)) == (flag)) - -#define TYPE_VMXNET3 "vmxnet3" -#define VMXNET3(obj) OBJECT_CHECK(VMXNET3State, (obj), TYPE_VMXNET3) - -/* Cyclic ring abstraction */ -typedef struct { - hwaddr pa; - size_t size; - size_t cell_size; - size_t next; - uint8_t gen; -} Vmxnet3Ring; - -static inline void vmxnet3_ring_init(Vmxnet3Ring *ring, - hwaddr pa, - size_t size, - size_t cell_size, - bool zero_region) -{ - ring->pa = pa; - ring->size = size; - ring->cell_size = cell_size; - ring->gen = VMXNET3_INIT_GEN; - ring->next = 0; - - if (zero_region) { - vmw_shmem_set(pa, 0, size * cell_size); - } -} - -#define VMXNET3_RING_DUMP(macro, ring_name, ridx, r) \ - macro("%s#%d: base %" PRIx64 " size %lu cell_size %lu gen %d next %lu", \ - (ring_name), (ridx), \ - (r)->pa, (r)->size, (r)->cell_size, (r)->gen, (r)->next) - -static inline void vmxnet3_ring_inc(Vmxnet3Ring *ring) -{ - if (++ring->next >= ring->size) { - ring->next = 0; - ring->gen ^= 1; - } -} - -static inline void vmxnet3_ring_dec(Vmxnet3Ring *ring) -{ - if (ring->next-- == 0) { - ring->next = ring->size - 1; - ring->gen ^= 1; - } -} - -static inline hwaddr vmxnet3_ring_curr_cell_pa(Vmxnet3Ring *ring) -{ - return ring->pa + ring->next * ring->cell_size; -} - -static inline void vmxnet3_ring_read_curr_cell(Vmxnet3Ring *ring, void *buff) -{ - vmw_shmem_read(vmxnet3_ring_curr_cell_pa(ring), buff, ring->cell_size); -} - -static inline void vmxnet3_ring_write_curr_cell(Vmxnet3Ring *ring, void *buff) -{ - vmw_shmem_write(vmxnet3_ring_curr_cell_pa(ring), buff, ring->cell_size); -} - -static inline size_t vmxnet3_ring_curr_cell_idx(Vmxnet3Ring *ring) -{ - return ring->next; -} - -static inline uint8_t vmxnet3_ring_curr_gen(Vmxnet3Ring *ring) -{ - return ring->gen; -} - -/* Debug trace-related functions */ -static inline void -vmxnet3_dump_tx_descr(struct Vmxnet3_TxDesc *descr) -{ - VMW_PKPRN("TX DESCR: " - "addr %" PRIx64 ", len: %d, gen: %d, rsvd: %d, " - "dtype: %d, ext1: %d, msscof: %d, hlen: %d, om: %d, " - "eop: %d, cq: %d, ext2: %d, ti: %d, tci: %d", - le64_to_cpu(descr->addr), descr->len, descr->gen, descr->rsvd, - descr->dtype, descr->ext1, descr->msscof, descr->hlen, descr->om, - descr->eop, descr->cq, descr->ext2, descr->ti, descr->tci); -} - -static inline void -vmxnet3_dump_virt_hdr(struct virtio_net_hdr *vhdr) -{ - VMW_PKPRN("VHDR: flags 0x%x, gso_type: 0x%x, hdr_len: %d, gso_size: %d, " - "csum_start: %d, csum_offset: %d", - vhdr->flags, vhdr->gso_type, vhdr->hdr_len, vhdr->gso_size, - vhdr->csum_start, vhdr->csum_offset); -} - -static inline void -vmxnet3_dump_rx_descr(struct Vmxnet3_RxDesc *descr) -{ - VMW_PKPRN("RX DESCR: addr %" PRIx64 ", len: %d, gen: %d, rsvd: %d, " - "dtype: %d, ext1: %d, btype: %d", - le64_to_cpu(descr->addr), descr->len, descr->gen, - descr->rsvd, descr->dtype, descr->ext1, descr->btype); -} - -/* Device state and helper functions */ -#define VMXNET3_RX_RINGS_PER_QUEUE (2) - -typedef struct { - Vmxnet3Ring tx_ring; - Vmxnet3Ring comp_ring; - - uint8_t intr_idx; - hwaddr tx_stats_pa; - struct UPT1_TxStats txq_stats; -} Vmxnet3TxqDescr; - -typedef struct { - Vmxnet3Ring rx_ring[VMXNET3_RX_RINGS_PER_QUEUE]; - Vmxnet3Ring comp_ring; - uint8_t intr_idx; - hwaddr rx_stats_pa; - struct UPT1_RxStats rxq_stats; -} Vmxnet3RxqDescr; - -typedef struct { - bool is_masked; - bool is_pending; - bool is_asserted; -} Vmxnet3IntState; - -typedef struct { - PCIDevice parent_obj; - NICState *nic; - NICConf conf; - MemoryRegion bar0; - MemoryRegion bar1; - MemoryRegion msix_bar; - - Vmxnet3RxqDescr rxq_descr[VMXNET3_DEVICE_MAX_RX_QUEUES]; - Vmxnet3TxqDescr txq_descr[VMXNET3_DEVICE_MAX_TX_QUEUES]; - - /* Whether MSI-X support was installed successfully */ - bool msix_used; - /* Whether MSI support was installed successfully */ - bool msi_used; - hwaddr drv_shmem; - hwaddr temp_shared_guest_driver_memory; - - uint8_t txq_num; - - /* This boolean tells whether RX packet being indicated has to */ - /* be split into head and body chunks from different RX rings */ - bool rx_packets_compound; - - bool rx_vlan_stripping; - bool lro_supported; - - uint8_t rxq_num; - - /* Network MTU */ - uint32_t mtu; - - /* Maximum number of fragments for indicated TX packets */ - uint32_t max_tx_frags; - - /* Maximum number of fragments for indicated RX packets */ - uint16_t max_rx_frags; - - /* Index for events interrupt */ - uint8_t event_int_idx; - - /* Whether automatic interrupts masking enabled */ - bool auto_int_masking; - - bool peer_has_vhdr; - - /* TX packets to QEMU interface */ - struct VmxnetTxPkt *tx_pkt; - uint32_t offload_mode; - uint32_t cso_or_gso_size; - uint16_t tci; - bool needs_vlan; - - struct VmxnetRxPkt *rx_pkt; - - bool tx_sop; - bool skip_current_tx_pkt; - - uint32_t device_active; - uint32_t last_command; - - uint32_t link_status_and_speed; - - Vmxnet3IntState interrupt_states[VMXNET3_MAX_INTRS]; - - uint32_t temp_mac; /* To store the low part first */ - - MACAddr perm_mac; - uint32_t vlan_table[VMXNET3_VFT_SIZE]; - uint32_t rx_mode; - MACAddr *mcast_list; - uint32_t mcast_list_len; - uint32_t mcast_list_buff_size; /* needed for live migration. */ -} VMXNET3State; - -/* Interrupt management */ - -/* - *This function returns sign whether interrupt line is in asserted state - * This depends on the type of interrupt used. For INTX interrupt line will - * be asserted until explicit deassertion, for MSI(X) interrupt line will - * be deasserted automatically due to notification semantics of the MSI(X) - * interrupts - */ -static bool _vmxnet3_assert_interrupt_line(VMXNET3State *s, uint32_t int_idx) -{ - PCIDevice *d = PCI_DEVICE(s); - - if (s->msix_used && msix_enabled(d)) { - VMW_IRPRN("Sending MSI-X notification for vector %u", int_idx); - msix_notify(d, int_idx); - return false; - } - if (s->msi_used && msi_enabled(d)) { - VMW_IRPRN("Sending MSI notification for vector %u", int_idx); - msi_notify(d, int_idx); - return false; - } - - VMW_IRPRN("Asserting line for interrupt %u", int_idx); - qemu_set_irq(d->irq[int_idx], 1); - return true; -} - -static void _vmxnet3_deassert_interrupt_line(VMXNET3State *s, int lidx) -{ - PCIDevice *d = PCI_DEVICE(s); - - /* - * This function should never be called for MSI(X) interrupts - * because deassertion never required for message interrupts - */ - assert(!s->msix_used || !msix_enabled(d)); - /* - * This function should never be called for MSI(X) interrupts - * because deassertion never required for message interrupts - */ - assert(!s->msi_used || !msi_enabled(d)); - - VMW_IRPRN("Deasserting line for interrupt %u", lidx); - qemu_set_irq(d->irq[lidx], 0); -} - -static void vmxnet3_update_interrupt_line_state(VMXNET3State *s, int lidx) -{ - if (!s->interrupt_states[lidx].is_pending && - s->interrupt_states[lidx].is_asserted) { - VMW_IRPRN("New interrupt line state for index %d is DOWN", lidx); - _vmxnet3_deassert_interrupt_line(s, lidx); - s->interrupt_states[lidx].is_asserted = false; - return; - } - - if (s->interrupt_states[lidx].is_pending && - !s->interrupt_states[lidx].is_masked && - !s->interrupt_states[lidx].is_asserted) { - VMW_IRPRN("New interrupt line state for index %d is UP", lidx); - s->interrupt_states[lidx].is_asserted = - _vmxnet3_assert_interrupt_line(s, lidx); - s->interrupt_states[lidx].is_pending = false; - return; - } -} - -static void vmxnet3_trigger_interrupt(VMXNET3State *s, int lidx) -{ - PCIDevice *d = PCI_DEVICE(s); - s->interrupt_states[lidx].is_pending = true; - vmxnet3_update_interrupt_line_state(s, lidx); - - if (s->msix_used && msix_enabled(d) && s->auto_int_masking) { - goto do_automask; - } - - if (s->msi_used && msi_enabled(d) && s->auto_int_masking) { - goto do_automask; - } - - return; - -do_automask: - s->interrupt_states[lidx].is_masked = true; - vmxnet3_update_interrupt_line_state(s, lidx); -} - -static bool vmxnet3_interrupt_asserted(VMXNET3State *s, int lidx) -{ - return s->interrupt_states[lidx].is_asserted; -} - -static void vmxnet3_clear_interrupt(VMXNET3State *s, int int_idx) -{ - s->interrupt_states[int_idx].is_pending = false; - if (s->auto_int_masking) { - s->interrupt_states[int_idx].is_masked = true; - } - vmxnet3_update_interrupt_line_state(s, int_idx); -} - -static void -vmxnet3_on_interrupt_mask_changed(VMXNET3State *s, int lidx, bool is_masked) -{ - s->interrupt_states[lidx].is_masked = is_masked; - vmxnet3_update_interrupt_line_state(s, lidx); -} - -static bool vmxnet3_verify_driver_magic(hwaddr dshmem) -{ - return (VMXNET3_READ_DRV_SHARED32(dshmem, magic) == VMXNET3_REV1_MAGIC); -} - -#define VMXNET3_GET_BYTE(x, byte_num) (((x) >> (byte_num)*8) & 0xFF) -#define VMXNET3_MAKE_BYTE(byte_num, val) \ - (((uint32_t)((val) & 0xFF)) << (byte_num)*8) - -static void vmxnet3_set_variable_mac(VMXNET3State *s, uint32_t h, uint32_t l) -{ - s->conf.macaddr.a[0] = VMXNET3_GET_BYTE(l, 0); - s->conf.macaddr.a[1] = VMXNET3_GET_BYTE(l, 1); - s->conf.macaddr.a[2] = VMXNET3_GET_BYTE(l, 2); - s->conf.macaddr.a[3] = VMXNET3_GET_BYTE(l, 3); - s->conf.macaddr.a[4] = VMXNET3_GET_BYTE(h, 0); - s->conf.macaddr.a[5] = VMXNET3_GET_BYTE(h, 1); - - VMW_CFPRN("Variable MAC: " VMXNET_MF, VMXNET_MA(s->conf.macaddr.a)); - - qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); -} - -static uint64_t vmxnet3_get_mac_low(MACAddr *addr) -{ - return VMXNET3_MAKE_BYTE(0, addr->a[0]) | - VMXNET3_MAKE_BYTE(1, addr->a[1]) | - VMXNET3_MAKE_BYTE(2, addr->a[2]) | - VMXNET3_MAKE_BYTE(3, addr->a[3]); -} - -static uint64_t vmxnet3_get_mac_high(MACAddr *addr) -{ - return VMXNET3_MAKE_BYTE(0, addr->a[4]) | - VMXNET3_MAKE_BYTE(1, addr->a[5]); -} - -static void -vmxnet3_inc_tx_consumption_counter(VMXNET3State *s, int qidx) -{ - vmxnet3_ring_inc(&s->txq_descr[qidx].tx_ring); -} - -static inline void -vmxnet3_inc_rx_consumption_counter(VMXNET3State *s, int qidx, int ridx) -{ - vmxnet3_ring_inc(&s->rxq_descr[qidx].rx_ring[ridx]); -} - -static inline void -vmxnet3_inc_tx_completion_counter(VMXNET3State *s, int qidx) -{ - vmxnet3_ring_inc(&s->txq_descr[qidx].comp_ring); -} - -static void -vmxnet3_inc_rx_completion_counter(VMXNET3State *s, int qidx) -{ - vmxnet3_ring_inc(&s->rxq_descr[qidx].comp_ring); -} - -static void -vmxnet3_dec_rx_completion_counter(VMXNET3State *s, int qidx) -{ - vmxnet3_ring_dec(&s->rxq_descr[qidx].comp_ring); -} - -static void vmxnet3_complete_packet(VMXNET3State *s, int qidx, uint32 tx_ridx) -{ - struct Vmxnet3_TxCompDesc txcq_descr; - - VMXNET3_RING_DUMP(VMW_RIPRN, "TXC", qidx, &s->txq_descr[qidx].comp_ring); - - txcq_descr.txdIdx = tx_ridx; - txcq_descr.gen = vmxnet3_ring_curr_gen(&s->txq_descr[qidx].comp_ring); - - vmxnet3_ring_write_curr_cell(&s->txq_descr[qidx].comp_ring, &txcq_descr); - - /* Flush changes in TX descriptor before changing the counter value */ - smp_wmb(); - - vmxnet3_inc_tx_completion_counter(s, qidx); - vmxnet3_trigger_interrupt(s, s->txq_descr[qidx].intr_idx); -} - -static bool -vmxnet3_setup_tx_offloads(VMXNET3State *s) -{ - switch (s->offload_mode) { - case VMXNET3_OM_NONE: - vmxnet_tx_pkt_build_vheader(s->tx_pkt, false, false, 0); - break; - - case VMXNET3_OM_CSUM: - vmxnet_tx_pkt_build_vheader(s->tx_pkt, false, true, 0); - VMW_PKPRN("L4 CSO requested\n"); - break; - - case VMXNET3_OM_TSO: - vmxnet_tx_pkt_build_vheader(s->tx_pkt, true, true, - s->cso_or_gso_size); - vmxnet_tx_pkt_update_ip_checksums(s->tx_pkt); - VMW_PKPRN("GSO offload requested."); - break; - - default: - assert(false); - return false; - } - - return true; -} - -static void -vmxnet3_tx_retrieve_metadata(VMXNET3State *s, - const struct Vmxnet3_TxDesc *txd) -{ - s->offload_mode = txd->om; - s->cso_or_gso_size = txd->msscof; - s->tci = txd->tci; - s->needs_vlan = txd->ti; -} - -typedef enum { - VMXNET3_PKT_STATUS_OK, - VMXNET3_PKT_STATUS_ERROR, - VMXNET3_PKT_STATUS_DISCARD,/* only for tx */ - VMXNET3_PKT_STATUS_OUT_OF_BUF /* only for rx */ -} Vmxnet3PktStatus; - -static void -vmxnet3_on_tx_done_update_stats(VMXNET3State *s, int qidx, - Vmxnet3PktStatus status) -{ - size_t tot_len = vmxnet_tx_pkt_get_total_len(s->tx_pkt); - struct UPT1_TxStats *stats = &s->txq_descr[qidx].txq_stats; - - switch (status) { - case VMXNET3_PKT_STATUS_OK: - switch (vmxnet_tx_pkt_get_packet_type(s->tx_pkt)) { - case ETH_PKT_BCAST: - stats->bcastPktsTxOK++; - stats->bcastBytesTxOK += tot_len; - break; - case ETH_PKT_MCAST: - stats->mcastPktsTxOK++; - stats->mcastBytesTxOK += tot_len; - break; - case ETH_PKT_UCAST: - stats->ucastPktsTxOK++; - stats->ucastBytesTxOK += tot_len; - break; - default: - assert(false); - } - - if (s->offload_mode == VMXNET3_OM_TSO) { - /* - * According to VMWARE headers this statistic is a number - * of packets after segmentation but since we don't have - * this information in QEMU model, the best we can do is to - * provide number of non-segmented packets - */ - stats->TSOPktsTxOK++; - stats->TSOBytesTxOK += tot_len; - } - break; - - case VMXNET3_PKT_STATUS_DISCARD: - stats->pktsTxDiscard++; - break; - - case VMXNET3_PKT_STATUS_ERROR: - stats->pktsTxError++; - break; - - default: - assert(false); - } -} - -static void -vmxnet3_on_rx_done_update_stats(VMXNET3State *s, - int qidx, - Vmxnet3PktStatus status) -{ - struct UPT1_RxStats *stats = &s->rxq_descr[qidx].rxq_stats; - size_t tot_len = vmxnet_rx_pkt_get_total_len(s->rx_pkt); - - switch (status) { - case VMXNET3_PKT_STATUS_OUT_OF_BUF: - stats->pktsRxOutOfBuf++; - break; - - case VMXNET3_PKT_STATUS_ERROR: - stats->pktsRxError++; - break; - case VMXNET3_PKT_STATUS_OK: - switch (vmxnet_rx_pkt_get_packet_type(s->rx_pkt)) { - case ETH_PKT_BCAST: - stats->bcastPktsRxOK++; - stats->bcastBytesRxOK += tot_len; - break; - case ETH_PKT_MCAST: - stats->mcastPktsRxOK++; - stats->mcastBytesRxOK += tot_len; - break; - case ETH_PKT_UCAST: - stats->ucastPktsRxOK++; - stats->ucastBytesRxOK += tot_len; - break; - default: - assert(false); - } - - if (tot_len > s->mtu) { - stats->LROPktsRxOK++; - stats->LROBytesRxOK += tot_len; - } - break; - default: - assert(false); - } -} - -static inline bool -vmxnet3_pop_next_tx_descr(VMXNET3State *s, - int qidx, - struct Vmxnet3_TxDesc *txd, - uint32_t *descr_idx) -{ - Vmxnet3Ring *ring = &s->txq_descr[qidx].tx_ring; - - vmxnet3_ring_read_curr_cell(ring, txd); - if (txd->gen == vmxnet3_ring_curr_gen(ring)) { - /* Only read after generation field verification */ - smp_rmb(); - /* Re-read to be sure we got the latest version */ - vmxnet3_ring_read_curr_cell(ring, txd); - VMXNET3_RING_DUMP(VMW_RIPRN, "TX", qidx, ring); - *descr_idx = vmxnet3_ring_curr_cell_idx(ring); - vmxnet3_inc_tx_consumption_counter(s, qidx); - return true; - } - - return false; -} - -static bool -vmxnet3_send_packet(VMXNET3State *s, uint32_t qidx) -{ - Vmxnet3PktStatus status = VMXNET3_PKT_STATUS_OK; - - if (!vmxnet3_setup_tx_offloads(s)) { - status = VMXNET3_PKT_STATUS_ERROR; - goto func_exit; - } - - /* debug prints */ - vmxnet3_dump_virt_hdr(vmxnet_tx_pkt_get_vhdr(s->tx_pkt)); - vmxnet_tx_pkt_dump(s->tx_pkt); - - if (!vmxnet_tx_pkt_send(s->tx_pkt, qemu_get_queue(s->nic))) { - status = VMXNET3_PKT_STATUS_DISCARD; - goto func_exit; - } - -func_exit: - vmxnet3_on_tx_done_update_stats(s, qidx, status); - return (status == VMXNET3_PKT_STATUS_OK); -} - -static void vmxnet3_process_tx_queue(VMXNET3State *s, int qidx) -{ - struct Vmxnet3_TxDesc txd; - uint32_t txd_idx; - uint32_t data_len; - hwaddr data_pa; - - for (;;) { - if (!vmxnet3_pop_next_tx_descr(s, qidx, &txd, &txd_idx)) { - break; - } - - vmxnet3_dump_tx_descr(&txd); - - if (!s->skip_current_tx_pkt) { - data_len = (txd.len > 0) ? txd.len : VMXNET3_MAX_TX_BUF_SIZE; - data_pa = le64_to_cpu(txd.addr); - - if (!vmxnet_tx_pkt_add_raw_fragment(s->tx_pkt, - data_pa, - data_len)) { - s->skip_current_tx_pkt = true; - } - } - - if (s->tx_sop) { - vmxnet3_tx_retrieve_metadata(s, &txd); - s->tx_sop = false; - } - - if (txd.eop) { - if (!s->skip_current_tx_pkt) { - vmxnet_tx_pkt_parse(s->tx_pkt); - - if (s->needs_vlan) { - vmxnet_tx_pkt_setup_vlan_header(s->tx_pkt, s->tci); - } - - vmxnet3_send_packet(s, qidx); - } else { - vmxnet3_on_tx_done_update_stats(s, qidx, - VMXNET3_PKT_STATUS_ERROR); - } - - vmxnet3_complete_packet(s, qidx, txd_idx); - s->tx_sop = true; - s->skip_current_tx_pkt = false; - vmxnet_tx_pkt_reset(s->tx_pkt); - } - } -} - -static inline void -vmxnet3_read_next_rx_descr(VMXNET3State *s, int qidx, int ridx, - struct Vmxnet3_RxDesc *dbuf, uint32_t *didx) -{ - Vmxnet3Ring *ring = &s->rxq_descr[qidx].rx_ring[ridx]; - *didx = vmxnet3_ring_curr_cell_idx(ring); - vmxnet3_ring_read_curr_cell(ring, dbuf); -} - -static inline uint8_t -vmxnet3_get_rx_ring_gen(VMXNET3State *s, int qidx, int ridx) -{ - return s->rxq_descr[qidx].rx_ring[ridx].gen; -} - -static inline hwaddr -vmxnet3_pop_rxc_descr(VMXNET3State *s, int qidx, uint32_t *descr_gen) -{ - uint8_t ring_gen; - struct Vmxnet3_RxCompDesc rxcd; - - hwaddr daddr = - vmxnet3_ring_curr_cell_pa(&s->rxq_descr[qidx].comp_ring); - - cpu_physical_memory_read(daddr, &rxcd, sizeof(struct Vmxnet3_RxCompDesc)); - ring_gen = vmxnet3_ring_curr_gen(&s->rxq_descr[qidx].comp_ring); - - if (rxcd.gen != ring_gen) { - *descr_gen = ring_gen; - vmxnet3_inc_rx_completion_counter(s, qidx); - return daddr; - } - - return 0; -} - -static inline void -vmxnet3_revert_rxc_descr(VMXNET3State *s, int qidx) -{ - vmxnet3_dec_rx_completion_counter(s, qidx); -} - -#define RXQ_IDX (0) -#define RX_HEAD_BODY_RING (0) -#define RX_BODY_ONLY_RING (1) - -static bool -vmxnet3_get_next_head_rx_descr(VMXNET3State *s, - struct Vmxnet3_RxDesc *descr_buf, - uint32_t *descr_idx, - uint32_t *ridx) -{ - for (;;) { - uint32_t ring_gen; - vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, - descr_buf, descr_idx); - - /* If no more free descriptors - return */ - ring_gen = vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_HEAD_BODY_RING); - if (descr_buf->gen != ring_gen) { - return false; - } - - /* Only read after generation field verification */ - smp_rmb(); - /* Re-read to be sure we got the latest version */ - vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, - descr_buf, descr_idx); - - /* Mark current descriptor as used/skipped */ - vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_HEAD_BODY_RING); - - /* If this is what we are looking for - return */ - if (descr_buf->btype == VMXNET3_RXD_BTYPE_HEAD) { - *ridx = RX_HEAD_BODY_RING; - return true; - } - } -} - -static bool -vmxnet3_get_next_body_rx_descr(VMXNET3State *s, - struct Vmxnet3_RxDesc *d, - uint32_t *didx, - uint32_t *ridx) -{ - vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, d, didx); - - /* Try to find corresponding descriptor in head/body ring */ - if (d->gen == vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_HEAD_BODY_RING)) { - /* Only read after generation field verification */ - smp_rmb(); - /* Re-read to be sure we got the latest version */ - vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_HEAD_BODY_RING, d, didx); - if (d->btype == VMXNET3_RXD_BTYPE_BODY) { - vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_HEAD_BODY_RING); - *ridx = RX_HEAD_BODY_RING; - return true; - } - } - - /* - * If there is no free descriptors on head/body ring or next free - * descriptor is a head descriptor switch to body only ring - */ - vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_BODY_ONLY_RING, d, didx); - - /* If no more free descriptors - return */ - if (d->gen == vmxnet3_get_rx_ring_gen(s, RXQ_IDX, RX_BODY_ONLY_RING)) { - /* Only read after generation field verification */ - smp_rmb(); - /* Re-read to be sure we got the latest version */ - vmxnet3_read_next_rx_descr(s, RXQ_IDX, RX_BODY_ONLY_RING, d, didx); - assert(d->btype == VMXNET3_RXD_BTYPE_BODY); - *ridx = RX_BODY_ONLY_RING; - vmxnet3_inc_rx_consumption_counter(s, RXQ_IDX, RX_BODY_ONLY_RING); - return true; - } - - return false; -} - -static inline bool -vmxnet3_get_next_rx_descr(VMXNET3State *s, bool is_head, - struct Vmxnet3_RxDesc *descr_buf, - uint32_t *descr_idx, - uint32_t *ridx) -{ - if (is_head || !s->rx_packets_compound) { - return vmxnet3_get_next_head_rx_descr(s, descr_buf, descr_idx, ridx); - } else { - return vmxnet3_get_next_body_rx_descr(s, descr_buf, descr_idx, ridx); - } -} - -static void vmxnet3_rx_update_descr(struct VmxnetRxPkt *pkt, - struct Vmxnet3_RxCompDesc *rxcd) -{ - int csum_ok, is_gso; - bool isip4, isip6, istcp, isudp; - struct virtio_net_hdr *vhdr; - uint8_t offload_type; - - if (vmxnet_rx_pkt_is_vlan_stripped(pkt)) { - rxcd->ts = 1; - rxcd->tci = vmxnet_rx_pkt_get_vlan_tag(pkt); - } - - if (!vmxnet_rx_pkt_has_virt_hdr(pkt)) { - goto nocsum; - } - - vhdr = vmxnet_rx_pkt_get_vhdr(pkt); - /* - * Checksum is valid when lower level tell so or when lower level - * requires checksum offload telling that packet produced/bridged - * locally and did travel over network after last checksum calculation - * or production - */ - csum_ok = VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_DATA_VALID) || - VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_NEEDS_CSUM); - - offload_type = vhdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN; - is_gso = (offload_type != VIRTIO_NET_HDR_GSO_NONE) ? 1 : 0; - - if (!csum_ok && !is_gso) { - goto nocsum; - } - - vmxnet_rx_pkt_get_protocols(pkt, &isip4, &isip6, &isudp, &istcp); - if ((!istcp && !isudp) || (!isip4 && !isip6)) { - goto nocsum; - } - - rxcd->cnc = 0; - rxcd->v4 = isip4 ? 1 : 0; - rxcd->v6 = isip6 ? 1 : 0; - rxcd->tcp = istcp ? 1 : 0; - rxcd->udp = isudp ? 1 : 0; - rxcd->fcs = rxcd->tuc = rxcd->ipc = 1; - return; - -nocsum: - rxcd->cnc = 1; - return; -} - -static void -vmxnet3_physical_memory_writev(const struct iovec *iov, - size_t start_iov_off, - hwaddr target_addr, - size_t bytes_to_copy) -{ - size_t curr_off = 0; - size_t copied = 0; - - while (bytes_to_copy) { - if (start_iov_off < (curr_off + iov->iov_len)) { - size_t chunk_len = - MIN((curr_off + iov->iov_len) - start_iov_off, bytes_to_copy); - - cpu_physical_memory_write(target_addr + copied, - iov->iov_base + start_iov_off - curr_off, - chunk_len); - - copied += chunk_len; - start_iov_off += chunk_len; - curr_off = start_iov_off; - bytes_to_copy -= chunk_len; - } else { - curr_off += iov->iov_len; - } - iov++; - } -} - -static bool -vmxnet3_indicate_packet(VMXNET3State *s) -{ - struct Vmxnet3_RxDesc rxd; - bool is_head = true; - uint32_t rxd_idx; - uint32_t rx_ridx = 0; - - struct Vmxnet3_RxCompDesc rxcd; - uint32_t new_rxcd_gen = VMXNET3_INIT_GEN; - hwaddr new_rxcd_pa = 0; - hwaddr ready_rxcd_pa = 0; - struct iovec *data = vmxnet_rx_pkt_get_iovec(s->rx_pkt); - size_t bytes_copied = 0; - size_t bytes_left = vmxnet_rx_pkt_get_total_len(s->rx_pkt); - uint16_t num_frags = 0; - size_t chunk_size; - - vmxnet_rx_pkt_dump(s->rx_pkt); - - while (bytes_left > 0) { - - /* cannot add more frags to packet */ - if (num_frags == s->max_rx_frags) { - break; - } - - new_rxcd_pa = vmxnet3_pop_rxc_descr(s, RXQ_IDX, &new_rxcd_gen); - if (!new_rxcd_pa) { - break; - } - - if (!vmxnet3_get_next_rx_descr(s, is_head, &rxd, &rxd_idx, &rx_ridx)) { - break; - } - - chunk_size = MIN(bytes_left, rxd.len); - vmxnet3_physical_memory_writev(data, bytes_copied, - le64_to_cpu(rxd.addr), chunk_size); - bytes_copied += chunk_size; - bytes_left -= chunk_size; - - vmxnet3_dump_rx_descr(&rxd); - - if (0 != ready_rxcd_pa) { - cpu_physical_memory_write(ready_rxcd_pa, &rxcd, sizeof(rxcd)); - } - - memset(&rxcd, 0, sizeof(struct Vmxnet3_RxCompDesc)); - rxcd.rxdIdx = rxd_idx; - rxcd.len = chunk_size; - rxcd.sop = is_head; - rxcd.gen = new_rxcd_gen; - rxcd.rqID = RXQ_IDX + rx_ridx * s->rxq_num; - - if (0 == bytes_left) { - vmxnet3_rx_update_descr(s->rx_pkt, &rxcd); - } - - VMW_RIPRN("RX Completion descriptor: rxRing: %lu rxIdx %lu len %lu " - "sop %d csum_correct %lu", - (unsigned long) rx_ridx, - (unsigned long) rxcd.rxdIdx, - (unsigned long) rxcd.len, - (int) rxcd.sop, - (unsigned long) rxcd.tuc); - - is_head = false; - ready_rxcd_pa = new_rxcd_pa; - new_rxcd_pa = 0; - num_frags++; - } - - if (0 != ready_rxcd_pa) { - rxcd.eop = 1; - rxcd.err = (0 != bytes_left); - cpu_physical_memory_write(ready_rxcd_pa, &rxcd, sizeof(rxcd)); - - /* Flush RX descriptor changes */ - smp_wmb(); - } - - if (0 != new_rxcd_pa) { - vmxnet3_revert_rxc_descr(s, RXQ_IDX); - } - - vmxnet3_trigger_interrupt(s, s->rxq_descr[RXQ_IDX].intr_idx); - - if (bytes_left == 0) { - vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, VMXNET3_PKT_STATUS_OK); - return true; - } else if (num_frags == s->max_rx_frags) { - vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, VMXNET3_PKT_STATUS_ERROR); - return false; - } else { - vmxnet3_on_rx_done_update_stats(s, RXQ_IDX, - VMXNET3_PKT_STATUS_OUT_OF_BUF); - return false; - } -} - -static void -vmxnet3_io_bar0_write(void *opaque, hwaddr addr, - uint64_t val, unsigned size) -{ - VMXNET3State *s = opaque; - - if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_TXPROD, - VMXNET3_DEVICE_MAX_TX_QUEUES, VMXNET3_REG_ALIGN)) { - int tx_queue_idx = - VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_TXPROD, - VMXNET3_REG_ALIGN); - assert(tx_queue_idx <= s->txq_num); - vmxnet3_process_tx_queue(s, tx_queue_idx); - return; - } - - if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_IMR, - VMXNET3_MAX_INTRS, VMXNET3_REG_ALIGN)) { - int l = VMW_MULTIREG_IDX_BY_ADDR(addr, VMXNET3_REG_IMR, - VMXNET3_REG_ALIGN); - - VMW_CBPRN("Interrupt mask for line %d written: 0x%" PRIx64, l, val); - - vmxnet3_on_interrupt_mask_changed(s, l, val); - return; - } - - if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_RXPROD, - VMXNET3_DEVICE_MAX_RX_QUEUES, VMXNET3_REG_ALIGN) || - VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_RXPROD2, - VMXNET3_DEVICE_MAX_RX_QUEUES, VMXNET3_REG_ALIGN)) { - return; - } - - VMW_WRPRN("BAR0 unknown write [%" PRIx64 "] = %" PRIx64 ", size %d", - (uint64_t) addr, val, size); -} - -static uint64_t -vmxnet3_io_bar0_read(void *opaque, hwaddr addr, unsigned size) -{ - if (VMW_IS_MULTIREG_ADDR(addr, VMXNET3_REG_IMR, - VMXNET3_MAX_INTRS, VMXNET3_REG_ALIGN)) { - assert(false); - } - - VMW_CBPRN("BAR0 unknown read [%" PRIx64 "], size %d", addr, size); - return 0; -} - -static void vmxnet3_reset_interrupt_states(VMXNET3State *s) -{ - int i; - for (i = 0; i < ARRAY_SIZE(s->interrupt_states); i++) { - s->interrupt_states[i].is_asserted = false; - s->interrupt_states[i].is_pending = false; - s->interrupt_states[i].is_masked = true; - } -} - -static void vmxnet3_reset_mac(VMXNET3State *s) -{ - memcpy(&s->conf.macaddr.a, &s->perm_mac.a, sizeof(s->perm_mac.a)); - VMW_CFPRN("MAC address set to: " VMXNET_MF, VMXNET_MA(s->conf.macaddr.a)); -} - -static void vmxnet3_deactivate_device(VMXNET3State *s) -{ - VMW_CBPRN("Deactivating vmxnet3..."); - s->device_active = false; -} - -static void vmxnet3_reset(VMXNET3State *s) -{ - VMW_CBPRN("Resetting vmxnet3..."); - - vmxnet3_deactivate_device(s); - vmxnet3_reset_interrupt_states(s); - vmxnet_tx_pkt_reset(s->tx_pkt); - s->drv_shmem = 0; - s->tx_sop = true; - s->skip_current_tx_pkt = false; -} - -static void vmxnet3_update_rx_mode(VMXNET3State *s) -{ - s->rx_mode = VMXNET3_READ_DRV_SHARED32(s->drv_shmem, - devRead.rxFilterConf.rxMode); - VMW_CFPRN("RX mode: 0x%08X", s->rx_mode); -} - -static void vmxnet3_update_vlan_filters(VMXNET3State *s) -{ - int i; - - /* Copy configuration from shared memory */ - VMXNET3_READ_DRV_SHARED(s->drv_shmem, - devRead.rxFilterConf.vfTable, - s->vlan_table, - sizeof(s->vlan_table)); - - /* Invert byte order when needed */ - for (i = 0; i < ARRAY_SIZE(s->vlan_table); i++) { - s->vlan_table[i] = le32_to_cpu(s->vlan_table[i]); - } - - /* Dump configuration for debugging purposes */ - VMW_CFPRN("Configured VLANs:"); - for (i = 0; i < sizeof(s->vlan_table) * 8; i++) { - if (VMXNET3_VFTABLE_ENTRY_IS_SET(s->vlan_table, i)) { - VMW_CFPRN("\tVLAN %d is present", i); - } - } -} - -static void vmxnet3_update_mcast_filters(VMXNET3State *s) -{ - uint16_t list_bytes = - VMXNET3_READ_DRV_SHARED16(s->drv_shmem, - devRead.rxFilterConf.mfTableLen); - - s->mcast_list_len = list_bytes / sizeof(s->mcast_list[0]); - - s->mcast_list = g_realloc(s->mcast_list, list_bytes); - if (NULL == s->mcast_list) { - if (0 == s->mcast_list_len) { - VMW_CFPRN("Current multicast list is empty"); - } else { - VMW_ERPRN("Failed to allocate multicast list of %d elements", - s->mcast_list_len); - } - s->mcast_list_len = 0; - } else { - int i; - hwaddr mcast_list_pa = - VMXNET3_READ_DRV_SHARED64(s->drv_shmem, - devRead.rxFilterConf.mfTablePA); - - cpu_physical_memory_read(mcast_list_pa, s->mcast_list, list_bytes); - VMW_CFPRN("Current multicast list len is %d:", s->mcast_list_len); - for (i = 0; i < s->mcast_list_len; i++) { - VMW_CFPRN("\t" VMXNET_MF, VMXNET_MA(s->mcast_list[i].a)); - } - } -} - -static void vmxnet3_setup_rx_filtering(VMXNET3State *s) -{ - vmxnet3_update_rx_mode(s); - vmxnet3_update_vlan_filters(s); - vmxnet3_update_mcast_filters(s); -} - -static uint32_t vmxnet3_get_interrupt_config(VMXNET3State *s) -{ - uint32_t interrupt_mode = VMXNET3_IT_AUTO | (VMXNET3_IMM_AUTO << 2); - VMW_CFPRN("Interrupt config is 0x%X", interrupt_mode); - return interrupt_mode; -} - -static void vmxnet3_fill_stats(VMXNET3State *s) -{ - int i; - for (i = 0; i < s->txq_num; i++) { - cpu_physical_memory_write(s->txq_descr[i].tx_stats_pa, - &s->txq_descr[i].txq_stats, - sizeof(s->txq_descr[i].txq_stats)); - } - - for (i = 0; i < s->rxq_num; i++) { - cpu_physical_memory_write(s->rxq_descr[i].rx_stats_pa, - &s->rxq_descr[i].rxq_stats, - sizeof(s->rxq_descr[i].rxq_stats)); - } -} - -static void vmxnet3_adjust_by_guest_type(VMXNET3State *s) -{ - struct Vmxnet3_GOSInfo gos; - - VMXNET3_READ_DRV_SHARED(s->drv_shmem, devRead.misc.driverInfo.gos, - &gos, sizeof(gos)); - s->rx_packets_compound = - (gos.gosType == VMXNET3_GOS_TYPE_WIN) ? false : true; - - VMW_CFPRN("Guest type specifics: RXCOMPOUND: %d", s->rx_packets_compound); -} - -static void -vmxnet3_dump_conf_descr(const char *name, - struct Vmxnet3_VariableLenConfDesc *pm_descr) -{ - VMW_CFPRN("%s descriptor dump: Version %u, Length %u", - name, pm_descr->confVer, pm_descr->confLen); - -}; - -static void vmxnet3_update_pm_state(VMXNET3State *s) -{ - struct Vmxnet3_VariableLenConfDesc pm_descr; - - pm_descr.confLen = - VMXNET3_READ_DRV_SHARED32(s->drv_shmem, devRead.pmConfDesc.confLen); - pm_descr.confVer = - VMXNET3_READ_DRV_SHARED32(s->drv_shmem, devRead.pmConfDesc.confVer); - pm_descr.confPA = - VMXNET3_READ_DRV_SHARED64(s->drv_shmem, devRead.pmConfDesc.confPA); - - vmxnet3_dump_conf_descr("PM State", &pm_descr); -} - -static void vmxnet3_update_features(VMXNET3State *s) -{ - uint32_t guest_features; - int rxcso_supported; - - guest_features = VMXNET3_READ_DRV_SHARED32(s->drv_shmem, - devRead.misc.uptFeatures); - - rxcso_supported = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_RXCSUM); - s->rx_vlan_stripping = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_RXVLAN); - s->lro_supported = VMXNET_FLAG_IS_SET(guest_features, UPT1_F_LRO); - - VMW_CFPRN("Features configuration: LRO: %d, RXCSUM: %d, VLANSTRIP: %d", - s->lro_supported, rxcso_supported, - s->rx_vlan_stripping); - if (s->peer_has_vhdr) { - tap_set_offload(qemu_get_queue(s->nic)->peer, - rxcso_supported, - s->lro_supported, - s->lro_supported, - 0, - 0); - } -} - -static void vmxnet3_activate_device(VMXNET3State *s) -{ - int i; - static const uint32_t VMXNET3_DEF_TX_THRESHOLD = 1; - hwaddr qdescr_table_pa; - uint64_t pa; - uint32_t size; - - /* Verify configuration consistency */ - if (!vmxnet3_verify_driver_magic(s->drv_shmem)) { - VMW_ERPRN("Device configuration received from driver is invalid"); - return; - } - - vmxnet3_adjust_by_guest_type(s); - vmxnet3_update_features(s); - vmxnet3_update_pm_state(s); - vmxnet3_setup_rx_filtering(s); - /* Cache fields from shared memory */ - s->mtu = VMXNET3_READ_DRV_SHARED32(s->drv_shmem, devRead.misc.mtu); - VMW_CFPRN("MTU is %u", s->mtu); - - s->max_rx_frags = - VMXNET3_READ_DRV_SHARED16(s->drv_shmem, devRead.misc.maxNumRxSG); - - if (s->max_rx_frags == 0) { - s->max_rx_frags = 1; - } - - VMW_CFPRN("Max RX fragments is %u", s->max_rx_frags); - - s->event_int_idx = - VMXNET3_READ_DRV_SHARED8(s->drv_shmem, devRead.intrConf.eventIntrIdx); - VMW_CFPRN("Events interrupt line is %u", s->event_int_idx); - - s->auto_int_masking = - VMXNET3_READ_DRV_SHARED8(s->drv_shmem, devRead.intrConf.autoMask); - VMW_CFPRN("Automatic interrupt masking is %d", (int)s->auto_int_masking); - - s->txq_num = - VMXNET3_READ_DRV_SHARED8(s->drv_shmem, devRead.misc.numTxQueues); - s->rxq_num = - VMXNET3_READ_DRV_SHARED8(s->drv_shmem, devRead.misc.numRxQueues); - - VMW_CFPRN("Number of TX/RX queues %u/%u", s->txq_num, s->rxq_num); - assert(s->txq_num <= VMXNET3_DEVICE_MAX_TX_QUEUES); - - qdescr_table_pa = - VMXNET3_READ_DRV_SHARED64(s->drv_shmem, devRead.misc.queueDescPA); - VMW_CFPRN("TX queues descriptors table is at 0x%" PRIx64, qdescr_table_pa); - - /* - * Worst-case scenario is a packet that holds all TX rings space so - * we calculate total size of all TX rings for max TX fragments number - */ - s->max_tx_frags = 0; - - /* TX queues */ - for (i = 0; i < s->txq_num; i++) { - hwaddr qdescr_pa = - qdescr_table_pa + i * sizeof(struct Vmxnet3_TxQueueDesc); - - /* Read interrupt number for this TX queue */ - s->txq_descr[i].intr_idx = - VMXNET3_READ_TX_QUEUE_DESCR8(qdescr_pa, conf.intrIdx); - - VMW_CFPRN("TX Queue %d interrupt: %d", i, s->txq_descr[i].intr_idx); - - /* Read rings memory locations for TX queues */ - pa = VMXNET3_READ_TX_QUEUE_DESCR64(qdescr_pa, conf.txRingBasePA); - size = VMXNET3_READ_TX_QUEUE_DESCR32(qdescr_pa, conf.txRingSize); - - vmxnet3_ring_init(&s->txq_descr[i].tx_ring, pa, size, - sizeof(struct Vmxnet3_TxDesc), false); - VMXNET3_RING_DUMP(VMW_CFPRN, "TX", i, &s->txq_descr[i].tx_ring); - - s->max_tx_frags += size; - - /* TXC ring */ - pa = VMXNET3_READ_TX_QUEUE_DESCR64(qdescr_pa, conf.compRingBasePA); - size = VMXNET3_READ_TX_QUEUE_DESCR32(qdescr_pa, conf.compRingSize); - vmxnet3_ring_init(&s->txq_descr[i].comp_ring, pa, size, - sizeof(struct Vmxnet3_TxCompDesc), true); - VMXNET3_RING_DUMP(VMW_CFPRN, "TXC", i, &s->txq_descr[i].comp_ring); - - s->txq_descr[i].tx_stats_pa = - qdescr_pa + offsetof(struct Vmxnet3_TxQueueDesc, stats); - - memset(&s->txq_descr[i].txq_stats, 0, - sizeof(s->txq_descr[i].txq_stats)); - - /* Fill device-managed parameters for queues */ - VMXNET3_WRITE_TX_QUEUE_DESCR32(qdescr_pa, - ctrl.txThreshold, - VMXNET3_DEF_TX_THRESHOLD); - } - - /* Preallocate TX packet wrapper */ - VMW_CFPRN("Max TX fragments is %u", s->max_tx_frags); - vmxnet_tx_pkt_init(&s->tx_pkt, s->max_tx_frags, s->peer_has_vhdr); - vmxnet_rx_pkt_init(&s->rx_pkt, s->peer_has_vhdr); - - /* Read rings memory locations for RX queues */ - for (i = 0; i < s->rxq_num; i++) { - int j; - hwaddr qd_pa = - qdescr_table_pa + s->txq_num * sizeof(struct Vmxnet3_TxQueueDesc) + - i * sizeof(struct Vmxnet3_RxQueueDesc); - - /* Read interrupt number for this RX queue */ - s->rxq_descr[i].intr_idx = - VMXNET3_READ_TX_QUEUE_DESCR8(qd_pa, conf.intrIdx); - - VMW_CFPRN("RX Queue %d interrupt: %d", i, s->rxq_descr[i].intr_idx); - - /* Read rings memory locations */ - for (j = 0; j < VMXNET3_RX_RINGS_PER_QUEUE; j++) { - /* RX rings */ - pa = VMXNET3_READ_RX_QUEUE_DESCR64(qd_pa, conf.rxRingBasePA[j]); - size = VMXNET3_READ_RX_QUEUE_DESCR32(qd_pa, conf.rxRingSize[j]); - vmxnet3_ring_init(&s->rxq_descr[i].rx_ring[j], pa, size, - sizeof(struct Vmxnet3_RxDesc), false); - VMW_CFPRN("RX queue %d:%d: Base: %" PRIx64 ", Size: %d", - i, j, pa, size); - } - - /* RXC ring */ - pa = VMXNET3_READ_RX_QUEUE_DESCR64(qd_pa, conf.compRingBasePA); - size = VMXNET3_READ_RX_QUEUE_DESCR32(qd_pa, conf.compRingSize); - vmxnet3_ring_init(&s->rxq_descr[i].comp_ring, pa, size, - sizeof(struct Vmxnet3_RxCompDesc), true); - VMW_CFPRN("RXC queue %d: Base: %" PRIx64 ", Size: %d", i, pa, size); - - s->rxq_descr[i].rx_stats_pa = - qd_pa + offsetof(struct Vmxnet3_RxQueueDesc, stats); - memset(&s->rxq_descr[i].rxq_stats, 0, - sizeof(s->rxq_descr[i].rxq_stats)); - } - - /* Make sure everything is in place before device activation */ - smp_wmb(); - - vmxnet3_reset_mac(s); - - s->device_active = true; -} - -static void vmxnet3_handle_command(VMXNET3State *s, uint64_t cmd) -{ - s->last_command = cmd; - - switch (cmd) { - case VMXNET3_CMD_GET_PERM_MAC_HI: - VMW_CBPRN("Set: Get upper part of permanent MAC"); - break; - - case VMXNET3_CMD_GET_PERM_MAC_LO: - VMW_CBPRN("Set: Get lower part of permanent MAC"); - break; - - case VMXNET3_CMD_GET_STATS: - VMW_CBPRN("Set: Get device statistics"); - vmxnet3_fill_stats(s); - break; - - case VMXNET3_CMD_ACTIVATE_DEV: - VMW_CBPRN("Set: Activating vmxnet3 device"); - vmxnet3_activate_device(s); - break; - - case VMXNET3_CMD_UPDATE_RX_MODE: - VMW_CBPRN("Set: Update rx mode"); - vmxnet3_update_rx_mode(s); - break; - - case VMXNET3_CMD_UPDATE_VLAN_FILTERS: - VMW_CBPRN("Set: Update VLAN filters"); - vmxnet3_update_vlan_filters(s); - break; - - case VMXNET3_CMD_UPDATE_MAC_FILTERS: - VMW_CBPRN("Set: Update MAC filters"); - vmxnet3_update_mcast_filters(s); - break; - - case VMXNET3_CMD_UPDATE_FEATURE: - VMW_CBPRN("Set: Update features"); - vmxnet3_update_features(s); - break; - - case VMXNET3_CMD_UPDATE_PMCFG: - VMW_CBPRN("Set: Update power management config"); - vmxnet3_update_pm_state(s); - break; - - case VMXNET3_CMD_GET_LINK: - VMW_CBPRN("Set: Get link"); - break; - - case VMXNET3_CMD_RESET_DEV: - VMW_CBPRN("Set: Reset device"); - vmxnet3_reset(s); - break; - - case VMXNET3_CMD_QUIESCE_DEV: - VMW_CBPRN("Set: VMXNET3_CMD_QUIESCE_DEV - pause the device"); - vmxnet3_deactivate_device(s); - break; - - case VMXNET3_CMD_GET_CONF_INTR: - VMW_CBPRN("Set: VMXNET3_CMD_GET_CONF_INTR - interrupt configuration"); - break; - - default: - VMW_CBPRN("Received unknown command: %" PRIx64, cmd); - break; - } -} - -static uint64_t vmxnet3_get_command_status(VMXNET3State *s) -{ - uint64_t ret; - - switch (s->last_command) { - case VMXNET3_CMD_ACTIVATE_DEV: - ret = (s->device_active) ? 0 : -1; - VMW_CFPRN("Device active: %" PRIx64, ret); - break; - - case VMXNET3_CMD_RESET_DEV: - case VMXNET3_CMD_QUIESCE_DEV: - case VMXNET3_CMD_GET_QUEUE_STATUS: - ret = 0; - break; - - case VMXNET3_CMD_GET_LINK: - ret = s->link_status_and_speed; - VMW_CFPRN("Link and speed: %" PRIx64, ret); - break; - - case VMXNET3_CMD_GET_PERM_MAC_LO: - ret = vmxnet3_get_mac_low(&s->perm_mac); - break; - - case VMXNET3_CMD_GET_PERM_MAC_HI: - ret = vmxnet3_get_mac_high(&s->perm_mac); - break; - - case VMXNET3_CMD_GET_CONF_INTR: - ret = vmxnet3_get_interrupt_config(s); - break; - - default: - VMW_WRPRN("Received request for unknown command: %x", s->last_command); - ret = -1; - break; - } - - return ret; -} - -static void vmxnet3_set_events(VMXNET3State *s, uint32_t val) -{ - uint32_t events; - - VMW_CBPRN("Setting events: 0x%x", val); - events = VMXNET3_READ_DRV_SHARED32(s->drv_shmem, ecr) | val; - VMXNET3_WRITE_DRV_SHARED32(s->drv_shmem, ecr, events); -} - -static void vmxnet3_ack_events(VMXNET3State *s, uint32_t val) -{ - uint32_t events; - - VMW_CBPRN("Clearing events: 0x%x", val); - events = VMXNET3_READ_DRV_SHARED32(s->drv_shmem, ecr) & ~val; - VMXNET3_WRITE_DRV_SHARED32(s->drv_shmem, ecr, events); -} - -static void -vmxnet3_io_bar1_write(void *opaque, - hwaddr addr, - uint64_t val, - unsigned size) -{ - VMXNET3State *s = opaque; - - switch (addr) { - /* Vmxnet3 Revision Report Selection */ - case VMXNET3_REG_VRRS: - VMW_CBPRN("Write BAR1 [VMXNET3_REG_VRRS] = %" PRIx64 ", size %d", - val, size); - break; - - /* UPT Version Report Selection */ - case VMXNET3_REG_UVRS: - VMW_CBPRN("Write BAR1 [VMXNET3_REG_UVRS] = %" PRIx64 ", size %d", - val, size); - break; - - /* Driver Shared Address Low */ - case VMXNET3_REG_DSAL: - VMW_CBPRN("Write BAR1 [VMXNET3_REG_DSAL] = %" PRIx64 ", size %d", - val, size); - /* - * Guest driver will first write the low part of the shared - * memory address. We save it to temp variable and set the - * shared address only after we get the high part - */ - if (0 == val) { - s->device_active = false; - } - s->temp_shared_guest_driver_memory = val; - s->drv_shmem = 0; - break; - - /* Driver Shared Address High */ - case VMXNET3_REG_DSAH: - VMW_CBPRN("Write BAR1 [VMXNET3_REG_DSAH] = %" PRIx64 ", size %d", - val, size); - /* - * Set the shared memory between guest driver and device. - * We already should have low address part. - */ - s->drv_shmem = s->temp_shared_guest_driver_memory | (val << 32); - break; - - /* Command */ - case VMXNET3_REG_CMD: - VMW_CBPRN("Write BAR1 [VMXNET3_REG_CMD] = %" PRIx64 ", size %d", - val, size); - vmxnet3_handle_command(s, val); - break; - - /* MAC Address Low */ - case VMXNET3_REG_MACL: - VMW_CBPRN("Write BAR1 [VMXNET3_REG_MACL] = %" PRIx64 ", size %d", - val, size); - s->temp_mac = val; - break; - - /* MAC Address High */ - case VMXNET3_REG_MACH: - VMW_CBPRN("Write BAR1 [VMXNET3_REG_MACH] = %" PRIx64 ", size %d", - val, size); - vmxnet3_set_variable_mac(s, val, s->temp_mac); - break; - - /* Interrupt Cause Register */ - case VMXNET3_REG_ICR: - VMW_CBPRN("Write BAR1 [VMXNET3_REG_ICR] = %" PRIx64 ", size %d", - val, size); - assert(false); - break; - - /* Event Cause Register */ - case VMXNET3_REG_ECR: - VMW_CBPRN("Write BAR1 [VMXNET3_REG_ECR] = %" PRIx64 ", size %d", - val, size); - vmxnet3_ack_events(s, val); - break; - - default: - VMW_CBPRN("Unknown Write to BAR1 [%" PRIx64 "] = %" PRIx64 ", size %d", - addr, val, size); - break; - } -} - -static uint64_t -vmxnet3_io_bar1_read(void *opaque, hwaddr addr, unsigned size) -{ - VMXNET3State *s = opaque; - uint64_t ret = 0; - - switch (addr) { - /* Vmxnet3 Revision Report Selection */ - case VMXNET3_REG_VRRS: - VMW_CBPRN("Read BAR1 [VMXNET3_REG_VRRS], size %d", size); - ret = VMXNET3_DEVICE_REVISION; - break; - - /* UPT Version Report Selection */ - case VMXNET3_REG_UVRS: - VMW_CBPRN("Read BAR1 [VMXNET3_REG_UVRS], size %d", size); - ret = VMXNET3_DEVICE_VERSION; - break; - - /* Command */ - case VMXNET3_REG_CMD: - VMW_CBPRN("Read BAR1 [VMXNET3_REG_CMD], size %d", size); - ret = vmxnet3_get_command_status(s); - break; - - /* MAC Address Low */ - case VMXNET3_REG_MACL: - VMW_CBPRN("Read BAR1 [VMXNET3_REG_MACL], size %d", size); - ret = vmxnet3_get_mac_low(&s->conf.macaddr); - break; - - /* MAC Address High */ - case VMXNET3_REG_MACH: - VMW_CBPRN("Read BAR1 [VMXNET3_REG_MACH], size %d", size); - ret = vmxnet3_get_mac_high(&s->conf.macaddr); - break; - - /* - * Interrupt Cause Register - * Used for legacy interrupts only so interrupt index always 0 - */ - case VMXNET3_REG_ICR: - VMW_CBPRN("Read BAR1 [VMXNET3_REG_ICR], size %d", size); - if (vmxnet3_interrupt_asserted(s, 0)) { - vmxnet3_clear_interrupt(s, 0); - ret = true; - } else { - ret = false; - } - break; - - default: - VMW_CBPRN("Unknow read BAR1[%" PRIx64 "], %d bytes", addr, size); - break; - } - - return ret; -} - -static int -vmxnet3_can_receive(NetClientState *nc) -{ - VMXNET3State *s = qemu_get_nic_opaque(nc); - return s->device_active && - VMXNET_FLAG_IS_SET(s->link_status_and_speed, VMXNET3_LINK_STATUS_UP); -} - -static inline bool -vmxnet3_is_registered_vlan(VMXNET3State *s, const void *data) -{ - uint16_t vlan_tag = eth_get_pkt_tci(data) & VLAN_VID_MASK; - if (IS_SPECIAL_VLAN_ID(vlan_tag)) { - return true; - } - - return VMXNET3_VFTABLE_ENTRY_IS_SET(s->vlan_table, vlan_tag); -} - -static bool -vmxnet3_is_allowed_mcast_group(VMXNET3State *s, const uint8_t *group_mac) -{ - int i; - for (i = 0; i < s->mcast_list_len; i++) { - if (!memcmp(group_mac, s->mcast_list[i].a, sizeof(s->mcast_list[i]))) { - return true; - } - } - return false; -} - -static bool -vmxnet3_rx_filter_may_indicate(VMXNET3State *s, const void *data, - size_t size) -{ - struct eth_header *ehdr = PKT_GET_ETH_HDR(data); - - if (VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_PROMISC)) { - return true; - } - - if (!vmxnet3_is_registered_vlan(s, data)) { - return false; - } - - switch (vmxnet_rx_pkt_get_packet_type(s->rx_pkt)) { - case ETH_PKT_UCAST: - if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_UCAST)) { - return false; - } - if (memcmp(s->conf.macaddr.a, ehdr->h_dest, ETH_ALEN)) { - return false; - } - break; - - case ETH_PKT_BCAST: - if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_BCAST)) { - return false; - } - break; - - case ETH_PKT_MCAST: - if (VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_ALL_MULTI)) { - return true; - } - if (!VMXNET_FLAG_IS_SET(s->rx_mode, VMXNET3_RXM_MCAST)) { - return false; - } - if (!vmxnet3_is_allowed_mcast_group(s, ehdr->h_dest)) { - return false; - } - break; - - default: - assert(false); - } - - return true; -} - -static ssize_t -vmxnet3_receive(NetClientState *nc, const uint8_t *buf, size_t size) -{ - VMXNET3State *s = qemu_get_nic_opaque(nc); - size_t bytes_indicated; - - if (!vmxnet3_can_receive(nc)) { - VMW_PKPRN("Cannot receive now"); - return -1; - } - - if (s->peer_has_vhdr) { - vmxnet_rx_pkt_set_vhdr(s->rx_pkt, (struct virtio_net_hdr *)buf); - buf += sizeof(struct virtio_net_hdr); - size -= sizeof(struct virtio_net_hdr); - } - - vmxnet_rx_pkt_set_packet_type(s->rx_pkt, - get_eth_packet_type(PKT_GET_ETH_HDR(buf))); - - if (vmxnet3_rx_filter_may_indicate(s, buf, size)) { - vmxnet_rx_pkt_attach_data(s->rx_pkt, buf, size, s->rx_vlan_stripping); - bytes_indicated = vmxnet3_indicate_packet(s) ? size : -1; - if (bytes_indicated < size) { - VMW_PKPRN("RX: %lu of %lu bytes indicated", bytes_indicated, size); - } - } else { - VMW_PKPRN("Packet dropped by RX filter"); - bytes_indicated = size; - } - - assert(size > 0); - assert(bytes_indicated != 0); - return bytes_indicated; -} - -static void vmxnet3_cleanup(NetClientState *nc) -{ - VMXNET3State *s = qemu_get_nic_opaque(nc); - s->nic = NULL; -} - -static void vmxnet3_set_link_status(NetClientState *nc) -{ - VMXNET3State *s = qemu_get_nic_opaque(nc); - - if (nc->link_down) { - s->link_status_and_speed &= ~VMXNET3_LINK_STATUS_UP; - } else { - s->link_status_and_speed |= VMXNET3_LINK_STATUS_UP; - } - - vmxnet3_set_events(s, VMXNET3_ECR_LINK); - vmxnet3_trigger_interrupt(s, s->event_int_idx); -} - -static NetClientInfo net_vmxnet3_info = { - .type = NET_CLIENT_OPTIONS_KIND_NIC, - .size = sizeof(NICState), - .can_receive = vmxnet3_can_receive, - .receive = vmxnet3_receive, - .cleanup = vmxnet3_cleanup, - .link_status_changed = vmxnet3_set_link_status, -}; - -static bool vmxnet3_peer_has_vnet_hdr(VMXNET3State *s) -{ - NetClientState *peer = qemu_get_queue(s->nic)->peer; - - if ((NULL != peer) && - (peer->info->type == NET_CLIENT_OPTIONS_KIND_TAP) && - tap_has_vnet_hdr(peer)) { - return true; - } - - VMW_WRPRN("Peer has no virtio extension. Task offloads will be emulated."); - return false; -} - -static void vmxnet3_net_uninit(VMXNET3State *s) -{ - g_free(s->mcast_list); - vmxnet_tx_pkt_reset(s->tx_pkt); - vmxnet_tx_pkt_uninit(s->tx_pkt); - vmxnet_rx_pkt_uninit(s->rx_pkt); - qemu_del_net_client(qemu_get_queue(s->nic)); -} - -static void vmxnet3_net_init(VMXNET3State *s) -{ - DeviceState *d = DEVICE(s); - - VMW_CBPRN("vmxnet3_net_init called..."); - - qemu_macaddr_default_if_unset(&s->conf.macaddr); - - /* Windows guest will query the address that was set on init */ - memcpy(&s->perm_mac.a, &s->conf.macaddr.a, sizeof(s->perm_mac.a)); - - s->mcast_list = NULL; - s->mcast_list_len = 0; - - s->link_status_and_speed = VMXNET3_LINK_SPEED | VMXNET3_LINK_STATUS_UP; - - VMW_CFPRN("Permanent MAC: " MAC_FMT, MAC_ARG(s->perm_mac.a)); - - s->nic = qemu_new_nic(&net_vmxnet3_info, &s->conf, - object_get_typename(OBJECT(s)), - d->id, s); - - s->peer_has_vhdr = vmxnet3_peer_has_vnet_hdr(s); - s->tx_sop = true; - s->skip_current_tx_pkt = false; - s->tx_pkt = NULL; - s->rx_pkt = NULL; - s->rx_vlan_stripping = false; - s->lro_supported = false; - - if (s->peer_has_vhdr) { - tap_set_vnet_hdr_len(qemu_get_queue(s->nic)->peer, - sizeof(struct virtio_net_hdr)); - - tap_using_vnet_hdr(qemu_get_queue(s->nic)->peer, 1); - } - - qemu_format_nic_info_str(qemu_get_queue(s->nic), s->conf.macaddr.a); -} - -static void -vmxnet3_unuse_msix_vectors(VMXNET3State *s, int num_vectors) -{ - PCIDevice *d = PCI_DEVICE(s); - int i; - for (i = 0; i < num_vectors; i++) { - msix_vector_unuse(d, i); - } -} - -static bool -vmxnet3_use_msix_vectors(VMXNET3State *s, int num_vectors) -{ - PCIDevice *d = PCI_DEVICE(s); - int i; - for (i = 0; i < num_vectors; i++) { - int res = msix_vector_use(d, i); - if (0 > res) { - VMW_WRPRN("Failed to use MSI-X vector %d, error %d", i, res); - vmxnet3_unuse_msix_vectors(s, i); - return false; - } - } - return true; -} - -static bool -vmxnet3_init_msix(VMXNET3State *s) -{ - PCIDevice *d = PCI_DEVICE(s); - int res = msix_init(d, VMXNET3_MAX_INTRS, - &s->msix_bar, - VMXNET3_MSIX_BAR_IDX, VMXNET3_OFF_MSIX_TABLE, - &s->msix_bar, - VMXNET3_MSIX_BAR_IDX, VMXNET3_OFF_MSIX_PBA, - 0); - - if (0 > res) { - VMW_WRPRN("Failed to initialize MSI-X, error %d", res); - s->msix_used = false; - } else { - if (!vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS)) { - VMW_WRPRN("Failed to use MSI-X vectors, error %d", res); - msix_uninit(d, &s->msix_bar, &s->msix_bar); - s->msix_used = false; - } else { - s->msix_used = true; - } - } - return s->msix_used; -} - -static void -vmxnet3_cleanup_msix(VMXNET3State *s) -{ - PCIDevice *d = PCI_DEVICE(s); - - if (s->msix_used) { - msix_vector_unuse(d, VMXNET3_MAX_INTRS); - msix_uninit(d, &s->msix_bar, &s->msix_bar); - } -} - -#define VMXNET3_MSI_NUM_VECTORS (1) -#define VMXNET3_MSI_OFFSET (0x50) -#define VMXNET3_USE_64BIT (true) -#define VMXNET3_PER_VECTOR_MASK (false) - -static bool -vmxnet3_init_msi(VMXNET3State *s) -{ - PCIDevice *d = PCI_DEVICE(s); - int res; - - res = msi_init(d, VMXNET3_MSI_OFFSET, VMXNET3_MSI_NUM_VECTORS, - VMXNET3_USE_64BIT, VMXNET3_PER_VECTOR_MASK); - if (0 > res) { - VMW_WRPRN("Failed to initialize MSI, error %d", res); - s->msi_used = false; - } else { - s->msi_used = true; - } - - return s->msi_used; -} - -static void -vmxnet3_cleanup_msi(VMXNET3State *s) -{ - PCIDevice *d = PCI_DEVICE(s); - - if (s->msi_used) { - msi_uninit(d); - } -} - -static void -vmxnet3_msix_save(QEMUFile *f, void *opaque) -{ - PCIDevice *d = PCI_DEVICE(opaque); - msix_save(d, f); -} - -static int -vmxnet3_msix_load(QEMUFile *f, void *opaque, int version_id) -{ - PCIDevice *d = PCI_DEVICE(opaque); - msix_load(d, f); - return 0; -} - -static const MemoryRegionOps b0_ops = { - .read = vmxnet3_io_bar0_read, - .write = vmxnet3_io_bar0_write, - .endianness = DEVICE_LITTLE_ENDIAN, - .impl = { - .min_access_size = 4, - .max_access_size = 4, - }, -}; - -static const MemoryRegionOps b1_ops = { - .read = vmxnet3_io_bar1_read, - .write = vmxnet3_io_bar1_write, - .endianness = DEVICE_LITTLE_ENDIAN, - .impl = { - .min_access_size = 4, - .max_access_size = 4, - }, -}; - -static int vmxnet3_pci_init(PCIDevice *pci_dev) -{ - DeviceState *dev = DEVICE(pci_dev); - VMXNET3State *s = VMXNET3(pci_dev); - - VMW_CBPRN("Starting init..."); - - memory_region_init_io(&s->bar0, &b0_ops, s, - "vmxnet3-b0", VMXNET3_PT_REG_SIZE); - pci_register_bar(pci_dev, VMXNET3_BAR0_IDX, - PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar0); - - memory_region_init_io(&s->bar1, &b1_ops, s, - "vmxnet3-b1", VMXNET3_VD_REG_SIZE); - pci_register_bar(pci_dev, VMXNET3_BAR1_IDX, - PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar1); - - memory_region_init(&s->msix_bar, "vmxnet3-msix-bar", - VMXNET3_MSIX_BAR_SIZE); - pci_register_bar(pci_dev, VMXNET3_MSIX_BAR_IDX, - PCI_BASE_ADDRESS_SPACE_MEMORY, &s->msix_bar); - - vmxnet3_reset_interrupt_states(s); - - /* Interrupt pin A */ - pci_dev->config[PCI_INTERRUPT_PIN] = 0x01; - - if (!vmxnet3_init_msix(s)) { - VMW_WRPRN("Failed to initialize MSI-X, configuration is inconsistent."); - } - - if (!vmxnet3_init_msi(s)) { - VMW_WRPRN("Failed to initialize MSI, configuration is inconsistent."); - } - - vmxnet3_net_init(s); - - register_savevm(dev, "vmxnet3-msix", -1, 1, - vmxnet3_msix_save, vmxnet3_msix_load, s); - - add_boot_device_path(s->conf.bootindex, dev, "/ethernet-phy@0"); - - return 0; -} - - -static void vmxnet3_pci_uninit(PCIDevice *pci_dev) -{ - DeviceState *dev = DEVICE(pci_dev); - VMXNET3State *s = VMXNET3(pci_dev); - - VMW_CBPRN("Starting uninit..."); - - unregister_savevm(dev, "vmxnet3-msix", s); - - vmxnet3_net_uninit(s); - - vmxnet3_cleanup_msix(s); - - vmxnet3_cleanup_msi(s); - - memory_region_destroy(&s->bar0); - memory_region_destroy(&s->bar1); - memory_region_destroy(&s->msix_bar); -} - -static void vmxnet3_qdev_reset(DeviceState *dev) -{ - PCIDevice *d = PCI_DEVICE(dev); - VMXNET3State *s = VMXNET3(d); - - VMW_CBPRN("Starting QDEV reset..."); - vmxnet3_reset(s); -} - -static bool vmxnet3_mc_list_needed(void *opaque) -{ - return true; -} - -static int vmxnet3_mcast_list_pre_load(void *opaque) -{ - VMXNET3State *s = opaque; - - s->mcast_list = g_malloc(s->mcast_list_buff_size); - - return 0; -} - - -static void vmxnet3_pre_save(void *opaque) -{ - VMXNET3State *s = opaque; - - s->mcast_list_buff_size = s->mcast_list_len * sizeof(MACAddr); -} - -static const VMStateDescription vmxstate_vmxnet3_mcast_list = { - .name = "vmxnet3/mcast_list", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, - .pre_load = vmxnet3_mcast_list_pre_load, - .fields = (VMStateField[]) { - VMSTATE_VBUFFER_UINT32(mcast_list, VMXNET3State, 0, NULL, 0, - mcast_list_buff_size), - VMSTATE_END_OF_LIST() - } -}; - -static void vmxnet3_get_ring_from_file(QEMUFile *f, Vmxnet3Ring *r) -{ - r->pa = qemu_get_be64(f); - r->size = qemu_get_be32(f); - r->cell_size = qemu_get_be32(f); - r->next = qemu_get_be32(f); - r->gen = qemu_get_byte(f); -} - -static void vmxnet3_put_ring_to_file(QEMUFile *f, Vmxnet3Ring *r) -{ - qemu_put_be64(f, r->pa); - qemu_put_be32(f, r->size); - qemu_put_be32(f, r->cell_size); - qemu_put_be32(f, r->next); - qemu_put_byte(f, r->gen); -} - -static void vmxnet3_get_tx_stats_from_file(QEMUFile *f, - struct UPT1_TxStats *tx_stat) -{ - tx_stat->TSOPktsTxOK = qemu_get_be64(f); - tx_stat->TSOBytesTxOK = qemu_get_be64(f); - tx_stat->ucastPktsTxOK = qemu_get_be64(f); - tx_stat->ucastBytesTxOK = qemu_get_be64(f); - tx_stat->mcastPktsTxOK = qemu_get_be64(f); - tx_stat->mcastBytesTxOK = qemu_get_be64(f); - tx_stat->bcastPktsTxOK = qemu_get_be64(f); - tx_stat->bcastBytesTxOK = qemu_get_be64(f); - tx_stat->pktsTxError = qemu_get_be64(f); - tx_stat->pktsTxDiscard = qemu_get_be64(f); -} - -static void vmxnet3_put_tx_stats_to_file(QEMUFile *f, - struct UPT1_TxStats *tx_stat) -{ - qemu_put_be64(f, tx_stat->TSOPktsTxOK); - qemu_put_be64(f, tx_stat->TSOBytesTxOK); - qemu_put_be64(f, tx_stat->ucastPktsTxOK); - qemu_put_be64(f, tx_stat->ucastBytesTxOK); - qemu_put_be64(f, tx_stat->mcastPktsTxOK); - qemu_put_be64(f, tx_stat->mcastBytesTxOK); - qemu_put_be64(f, tx_stat->bcastPktsTxOK); - qemu_put_be64(f, tx_stat->bcastBytesTxOK); - qemu_put_be64(f, tx_stat->pktsTxError); - qemu_put_be64(f, tx_stat->pktsTxDiscard); -} - -static int vmxnet3_get_txq_descr(QEMUFile *f, void *pv, size_t size) -{ - Vmxnet3TxqDescr *r = pv; - - vmxnet3_get_ring_from_file(f, &r->tx_ring); - vmxnet3_get_ring_from_file(f, &r->comp_ring); - r->intr_idx = qemu_get_byte(f); - r->tx_stats_pa = qemu_get_be64(f); - - vmxnet3_get_tx_stats_from_file(f, &r->txq_stats); - - return 0; -} - -static void vmxnet3_put_txq_descr(QEMUFile *f, void *pv, size_t size) -{ - Vmxnet3TxqDescr *r = pv; - - vmxnet3_put_ring_to_file(f, &r->tx_ring); - vmxnet3_put_ring_to_file(f, &r->comp_ring); - qemu_put_byte(f, r->intr_idx); - qemu_put_be64(f, r->tx_stats_pa); - vmxnet3_put_tx_stats_to_file(f, &r->txq_stats); -} - -const VMStateInfo txq_descr_info = { - .name = "txq_descr", - .get = vmxnet3_get_txq_descr, - .put = vmxnet3_put_txq_descr -}; - -static void vmxnet3_get_rx_stats_from_file(QEMUFile *f, - struct UPT1_RxStats *rx_stat) -{ - rx_stat->LROPktsRxOK = qemu_get_be64(f); - rx_stat->LROBytesRxOK = qemu_get_be64(f); - rx_stat->ucastPktsRxOK = qemu_get_be64(f); - rx_stat->ucastBytesRxOK = qemu_get_be64(f); - rx_stat->mcastPktsRxOK = qemu_get_be64(f); - rx_stat->mcastBytesRxOK = qemu_get_be64(f); - rx_stat->bcastPktsRxOK = qemu_get_be64(f); - rx_stat->bcastBytesRxOK = qemu_get_be64(f); - rx_stat->pktsRxOutOfBuf = qemu_get_be64(f); - rx_stat->pktsRxError = qemu_get_be64(f); -} - -static void vmxnet3_put_rx_stats_to_file(QEMUFile *f, - struct UPT1_RxStats *rx_stat) -{ - qemu_put_be64(f, rx_stat->LROPktsRxOK); - qemu_put_be64(f, rx_stat->LROBytesRxOK); - qemu_put_be64(f, rx_stat->ucastPktsRxOK); - qemu_put_be64(f, rx_stat->ucastBytesRxOK); - qemu_put_be64(f, rx_stat->mcastPktsRxOK); - qemu_put_be64(f, rx_stat->mcastBytesRxOK); - qemu_put_be64(f, rx_stat->bcastPktsRxOK); - qemu_put_be64(f, rx_stat->bcastBytesRxOK); - qemu_put_be64(f, rx_stat->pktsRxOutOfBuf); - qemu_put_be64(f, rx_stat->pktsRxError); -} - -static int vmxnet3_get_rxq_descr(QEMUFile *f, void *pv, size_t size) -{ - Vmxnet3RxqDescr *r = pv; - int i; - - for (i = 0; i < VMXNET3_RX_RINGS_PER_QUEUE; i++) { - vmxnet3_get_ring_from_file(f, &r->rx_ring[i]); - } - - vmxnet3_get_ring_from_file(f, &r->comp_ring); - r->intr_idx = qemu_get_byte(f); - r->rx_stats_pa = qemu_get_be64(f); - - vmxnet3_get_rx_stats_from_file(f, &r->rxq_stats); - - return 0; -} - -static void vmxnet3_put_rxq_descr(QEMUFile *f, void *pv, size_t size) -{ - Vmxnet3RxqDescr *r = pv; - int i; - - for (i = 0; i < VMXNET3_RX_RINGS_PER_QUEUE; i++) { - vmxnet3_put_ring_to_file(f, &r->rx_ring[i]); - } - - vmxnet3_put_ring_to_file(f, &r->comp_ring); - qemu_put_byte(f, r->intr_idx); - qemu_put_be64(f, r->rx_stats_pa); - vmxnet3_put_rx_stats_to_file(f, &r->rxq_stats); -} - -static int vmxnet3_post_load(void *opaque, int version_id) -{ - VMXNET3State *s = opaque; - PCIDevice *d = PCI_DEVICE(s); - - vmxnet_tx_pkt_init(&s->tx_pkt, s->max_tx_frags, s->peer_has_vhdr); - vmxnet_rx_pkt_init(&s->rx_pkt, s->peer_has_vhdr); - - if (s->msix_used) { - if (!vmxnet3_use_msix_vectors(s, VMXNET3_MAX_INTRS)) { - VMW_WRPRN("Failed to re-use MSI-X vectors"); - msix_uninit(d, &s->msix_bar, &s->msix_bar); - s->msix_used = false; - return -1; - } - } - - return 0; -} - -const VMStateInfo rxq_descr_info = { - .name = "rxq_descr", - .get = vmxnet3_get_rxq_descr, - .put = vmxnet3_put_rxq_descr -}; - -static int vmxnet3_get_int_state(QEMUFile *f, void *pv, size_t size) -{ - Vmxnet3IntState *r = pv; - - r->is_masked = qemu_get_byte(f); - r->is_pending = qemu_get_byte(f); - r->is_asserted = qemu_get_byte(f); - - return 0; -} - -static void vmxnet3_put_int_state(QEMUFile *f, void *pv, size_t size) -{ - Vmxnet3IntState *r = pv; - - qemu_put_byte(f, r->is_masked); - qemu_put_byte(f, r->is_pending); - qemu_put_byte(f, r->is_asserted); -} - -const VMStateInfo int_state_info = { - .name = "int_state", - .get = vmxnet3_get_int_state, - .put = vmxnet3_put_int_state -}; - -static const VMStateDescription vmstate_vmxnet3 = { - .name = "vmxnet3", - .version_id = 1, - .minimum_version_id = 1, - .minimum_version_id_old = 1, - .pre_save = vmxnet3_pre_save, - .post_load = vmxnet3_post_load, - .fields = (VMStateField[]) { - VMSTATE_PCI_DEVICE(parent_obj, VMXNET3State), - VMSTATE_BOOL(rx_packets_compound, VMXNET3State), - VMSTATE_BOOL(rx_vlan_stripping, VMXNET3State), - VMSTATE_BOOL(lro_supported, VMXNET3State), - VMSTATE_UINT32(rx_mode, VMXNET3State), - VMSTATE_UINT32(mcast_list_len, VMXNET3State), - VMSTATE_UINT32(mcast_list_buff_size, VMXNET3State), - VMSTATE_UINT32_ARRAY(vlan_table, VMXNET3State, VMXNET3_VFT_SIZE), - VMSTATE_UINT32(mtu, VMXNET3State), - VMSTATE_UINT16(max_rx_frags, VMXNET3State), - VMSTATE_UINT32(max_tx_frags, VMXNET3State), - VMSTATE_UINT8(event_int_idx, VMXNET3State), - VMSTATE_BOOL(auto_int_masking, VMXNET3State), - VMSTATE_UINT8(txq_num, VMXNET3State), - VMSTATE_UINT8(rxq_num, VMXNET3State), - VMSTATE_UINT32(device_active, VMXNET3State), - VMSTATE_UINT32(last_command, VMXNET3State), - VMSTATE_UINT32(link_status_and_speed, VMXNET3State), - VMSTATE_UINT32(temp_mac, VMXNET3State), - VMSTATE_UINT64(drv_shmem, VMXNET3State), - VMSTATE_UINT64(temp_shared_guest_driver_memory, VMXNET3State), - - VMSTATE_ARRAY(txq_descr, VMXNET3State, - VMXNET3_DEVICE_MAX_TX_QUEUES, 0, txq_descr_info, - Vmxnet3TxqDescr), - VMSTATE_ARRAY(rxq_descr, VMXNET3State, - VMXNET3_DEVICE_MAX_RX_QUEUES, 0, rxq_descr_info, - Vmxnet3RxqDescr), - VMSTATE_ARRAY(interrupt_states, VMXNET3State, VMXNET3_MAX_INTRS, - 0, int_state_info, Vmxnet3IntState), - - VMSTATE_END_OF_LIST() - }, - .subsections = (VMStateSubsection[]) { - { - .vmsd = &vmxstate_vmxnet3_mcast_list, - .needed = vmxnet3_mc_list_needed - }, - { - /* empty element. */ - } - } -}; - -static void -vmxnet3_write_config(PCIDevice *pci_dev, uint32_t addr, uint32_t val, int len) -{ - pci_default_write_config(pci_dev, addr, val, len); - msix_write_config(pci_dev, addr, val, len); - msi_write_config(pci_dev, addr, val, len); -} - -static Property vmxnet3_properties[] = { - DEFINE_NIC_PROPERTIES(VMXNET3State, conf), - DEFINE_PROP_END_OF_LIST(), -}; - -static void vmxnet3_class_init(ObjectClass *class, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(class); - PCIDeviceClass *c = PCI_DEVICE_CLASS(class); - - c->init = vmxnet3_pci_init; - c->exit = vmxnet3_pci_uninit; - c->vendor_id = PCI_VENDOR_ID_VMWARE; - c->device_id = PCI_DEVICE_ID_VMWARE_VMXNET3; - c->revision = PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION; - c->class_id = PCI_CLASS_NETWORK_ETHERNET; - c->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE; - c->subsystem_id = PCI_DEVICE_ID_VMWARE_VMXNET3; - c->config_write = vmxnet3_write_config, - dc->desc = "VMWare Paravirtualized Ethernet v3"; - dc->reset = vmxnet3_qdev_reset; - dc->vmsd = &vmstate_vmxnet3; - dc->props = vmxnet3_properties; -} - -static const TypeInfo vmxnet3_info = { - .name = TYPE_VMXNET3, - .parent = TYPE_PCI_DEVICE, - .instance_size = sizeof(VMXNET3State), - .class_init = vmxnet3_class_init, -}; - -static void vmxnet3_register_types(void) -{ - VMW_CBPRN("vmxnet3_register_types called..."); - type_register_static(&vmxnet3_info); -} - -type_init(vmxnet3_register_types) |