| /* |
| * 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 "qemu/osdep.h" |
| #include "hw/hw.h" |
| #include "hw/pci/pci.h" |
| #include "hw/qdev-properties.h" |
| #include "net/tap.h" |
| #include "net/checksum.h" |
| #include "sysemu/sysemu.h" |
| #include "qemu/bswap.h" |
| #include "qemu/module.h" |
| #include "hw/pci/msix.h" |
| #include "hw/pci/msi.h" |
| #include "migration/register.h" |
| #include "migration/vmstate.h" |
| |
| #include "vmxnet3.h" |
| #include "vmxnet3_defs.h" |
| #include "vmxnet_debug.h" |
| #include "vmware_utils.h" |
| #include "net_tx_pkt.h" |
| #include "net_rx_pkt.h" |
| |
| #define PCI_DEVICE_ID_VMWARE_VMXNET3_REVISION 0x1 |
| #define VMXNET3_MSIX_BAR_SIZE 0x2000 |
| #define MIN_BUF_SIZE 60 |
| |
| /* Compatibility flags for migration */ |
| #define VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT 0 |
| #define VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS \ |
| (1 << VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT) |
| #define VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT 1 |
| #define VMXNET3_COMPAT_FLAG_DISABLE_PCIE \ |
| (1 << VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT) |
| |
| #define VMXNET3_EXP_EP_OFFSET (0x48) |
| #define VMXNET3_MSI_OFFSET(s) \ |
| ((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0x50 : 0x84) |
| #define VMXNET3_MSIX_OFFSET(s) \ |
| ((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0 : 0x9c) |
| #define VMXNET3_DSN_OFFSET (0x100) |
| |
| #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(s) \ |
| ((s)->compat_flags & VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS ? 0x800 : 0x1000) |
| |
| /* 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_UPT_REVISION 0x1 |
| #define VMXNET3_DEVICE_REVISION 0x1 |
| |
| /* Number of interrupt vectors for non-MSIx modes */ |
| #define VMXNET3_MAX_NMSIX_INTRS (1) |
| |
| /* Macros for rings descriptors access */ |
| #define VMXNET3_READ_TX_QUEUE_DESCR8(_d, dpa, field) \ |
| (vmw_shmem_ld8(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field))) |
| |
| #define VMXNET3_WRITE_TX_QUEUE_DESCR8(_d, dpa, field, value) \ |
| (vmw_shmem_st8(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field, value))) |
| |
| #define VMXNET3_READ_TX_QUEUE_DESCR32(_d, dpa, field) \ |
| (vmw_shmem_ld32(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field))) |
| |
| #define VMXNET3_WRITE_TX_QUEUE_DESCR32(_d, dpa, field, value) \ |
| (vmw_shmem_st32(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value)) |
| |
| #define VMXNET3_READ_TX_QUEUE_DESCR64(_d, dpa, field) \ |
| (vmw_shmem_ld64(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field))) |
| |
| #define VMXNET3_WRITE_TX_QUEUE_DESCR64(_d, dpa, field, value) \ |
| (vmw_shmem_st64(_d, dpa + offsetof(struct Vmxnet3_TxQueueDesc, field), value)) |
| |
| #define VMXNET3_READ_RX_QUEUE_DESCR64(_d, dpa, field) \ |
| (vmw_shmem_ld64(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field))) |
| |
| #define VMXNET3_READ_RX_QUEUE_DESCR32(_d, dpa, field) \ |
| (vmw_shmem_ld32(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field))) |
| |
| #define VMXNET3_WRITE_RX_QUEUE_DESCR64(_d, dpa, field, value) \ |
| (vmw_shmem_st64(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value)) |
| |
| #define VMXNET3_WRITE_RX_QUEUE_DESCR8(_d, dpa, field, value) \ |
| (vmw_shmem_st8(_d, dpa + offsetof(struct Vmxnet3_RxQueueDesc, field), value)) |
| |
| /* Macros for guest driver shared area access */ |
| #define VMXNET3_READ_DRV_SHARED64(_d, shpa, field) \ |
| (vmw_shmem_ld64(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field))) |
| |
| #define VMXNET3_READ_DRV_SHARED32(_d, shpa, field) \ |
| (vmw_shmem_ld32(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field))) |
| |
| #define VMXNET3_WRITE_DRV_SHARED32(_d, shpa, field, val) \ |
| (vmw_shmem_st32(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field), val)) |
| |
| #define VMXNET3_READ_DRV_SHARED16(_d, shpa, field) \ |
| (vmw_shmem_ld16(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field))) |
| |
| #define VMXNET3_READ_DRV_SHARED8(_d, shpa, field) \ |
| (vmw_shmem_ld8(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field))) |
| |
| #define VMXNET3_READ_DRV_SHARED(_d, shpa, field, b, l) \ |
| (vmw_shmem_read(_d, shpa + offsetof(struct Vmxnet3_DriverShared, field), b, l)) |
| |
| #define VMXNET_FLAG_IS_SET(field, flag) (((field) & (flag)) == (flag)) |
| |
| typedef struct VMXNET3Class { |
| PCIDeviceClass parent_class; |
| DeviceRealize parent_dc_realize; |
| } VMXNET3Class; |
| |
| #define VMXNET3_DEVICE_CLASS(klass) \ |
| OBJECT_CLASS_CHECK(VMXNET3Class, (klass), TYPE_VMXNET3) |
| #define VMXNET3_DEVICE_GET_CLASS(obj) \ |
| OBJECT_GET_CLASS(VMXNET3Class, (obj), TYPE_VMXNET3) |
| |
| static inline void vmxnet3_ring_init(PCIDevice *d, |
| Vmxnet3Ring *ring, |
| hwaddr pa, |
| uint32_t size, |
| uint32_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(d, pa, 0, size * cell_size); |
| } |
| } |
| |
| #define VMXNET3_RING_DUMP(macro, ring_name, ridx, r) \ |
| macro("%s#%d: base %" PRIx64 " size %u cell_size %u gen %d next %u", \ |
| (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(PCIDevice *d, Vmxnet3Ring *ring, |
| void *buff) |
| { |
| vmw_shmem_read(d, vmxnet3_ring_curr_cell_pa(ring), buff, ring->cell_size); |
| } |
| |
| static inline void vmxnet3_ring_write_curr_cell(PCIDevice *d, Vmxnet3Ring *ring, |
| void *buff) |
| { |
| vmw_shmem_write(d, 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", |
| 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", |
| descr->addr, descr->len, descr->gen, |
| descr->rsvd, descr->dtype, descr->ext1, descr->btype); |
| } |
| |
| /* 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 (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); |
| pci_irq_assert(d); |
| 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(!msi_enabled(d)); |
| |
| VMW_IRPRN("Deasserting line for interrupt %u", lidx); |
| pci_irq_deassert(d); |
| } |
| |
| 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 (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(PCIDevice *d, hwaddr dshmem) |
| { |
| return (VMXNET3_READ_DRV_SHARED32(d, 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: " MAC_FMT, MAC_ARG(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_t tx_ridx) |
| { |
| struct Vmxnet3_TxCompDesc txcq_descr; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| VMXNET3_RING_DUMP(VMW_RIPRN, "TXC", qidx, &s->txq_descr[qidx].comp_ring); |
| |
| memset(&txcq_descr, 0, sizeof(txcq_descr)); |
| txcq_descr.txdIdx = tx_ridx; |
| txcq_descr.gen = vmxnet3_ring_curr_gen(&s->txq_descr[qidx].comp_ring); |
| txcq_descr.val1 = cpu_to_le32(txcq_descr.val1); |
| txcq_descr.val2 = cpu_to_le32(txcq_descr.val2); |
| vmxnet3_ring_write_curr_cell(d, &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: |
| net_tx_pkt_build_vheader(s->tx_pkt, false, false, 0); |
| break; |
| |
| case VMXNET3_OM_CSUM: |
| net_tx_pkt_build_vheader(s->tx_pkt, false, true, 0); |
| VMW_PKPRN("L4 CSO requested\n"); |
| break; |
| |
| case VMXNET3_OM_TSO: |
| net_tx_pkt_build_vheader(s->tx_pkt, true, true, |
| s->cso_or_gso_size); |
| net_tx_pkt_update_ip_checksums(s->tx_pkt); |
| VMW_PKPRN("GSO offload requested."); |
| break; |
| |
| default: |
| g_assert_not_reached(); |
| 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 = net_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 (net_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: |
| g_assert_not_reached(); |
| } |
| |
| 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: |
| g_assert_not_reached(); |
| } |
| } |
| |
| 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 = net_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 (net_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: |
| g_assert_not_reached(); |
| } |
| |
| if (tot_len > s->mtu) { |
| stats->LROPktsRxOK++; |
| stats->LROBytesRxOK += tot_len; |
| } |
| break; |
| default: |
| g_assert_not_reached(); |
| } |
| } |
| |
| static inline void |
| vmxnet3_ring_read_curr_txdesc(PCIDevice *pcidev, Vmxnet3Ring *ring, |
| struct Vmxnet3_TxDesc *txd) |
| { |
| vmxnet3_ring_read_curr_cell(pcidev, ring, txd); |
| txd->addr = le64_to_cpu(txd->addr); |
| txd->val1 = le32_to_cpu(txd->val1); |
| txd->val2 = le32_to_cpu(txd->val2); |
| } |
| |
| 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; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| vmxnet3_ring_read_curr_txdesc(d, 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_txdesc(d, 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(net_tx_pkt_get_vhdr(s->tx_pkt)); |
| net_tx_pkt_dump(s->tx_pkt); |
| |
| if (!net_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 = txd.addr; |
| |
| if (!net_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 && net_tx_pkt_parse(s->tx_pkt)) { |
| if (s->needs_vlan) { |
| net_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; |
| net_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) |
| { |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| Vmxnet3Ring *ring = &s->rxq_descr[qidx].rx_ring[ridx]; |
| *didx = vmxnet3_ring_curr_cell_idx(ring); |
| vmxnet3_ring_read_curr_cell(d, ring, dbuf); |
| dbuf->addr = le64_to_cpu(dbuf->addr); |
| dbuf->val1 = le32_to_cpu(dbuf->val1); |
| dbuf->ext1 = le32_to_cpu(dbuf->ext1); |
| } |
| |
| 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); |
| |
| pci_dma_read(PCI_DEVICE(s), |
| daddr, &rxcd, sizeof(struct Vmxnet3_RxCompDesc)); |
| rxcd.val1 = le32_to_cpu(rxcd.val1); |
| rxcd.val2 = le32_to_cpu(rxcd.val2); |
| rxcd.val3 = le32_to_cpu(rxcd.val3); |
| 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); |
| } |
| } |
| |
| /* In case packet was csum offloaded (either NEEDS_CSUM or DATA_VALID), |
| * the implementation always passes an RxCompDesc with a "Checksum |
| * calculated and found correct" to the OS (cnc=0 and tuc=1, see |
| * vmxnet3_rx_update_descr). This emulates the observed ESXi behavior. |
| * |
| * Therefore, if packet has the NEEDS_CSUM set, we must calculate |
| * and place a fully computed checksum into the tcp/udp header. |
| * Otherwise, the OS driver will receive a checksum-correct indication |
| * (CHECKSUM_UNNECESSARY), but with the actual tcp/udp checksum field |
| * having just the pseudo header csum value. |
| * |
| * While this is not a problem if packet is destined for local delivery, |
| * in the case the host OS performs forwarding, it will forward an |
| * incorrectly checksummed packet. |
| */ |
| static void vmxnet3_rx_need_csum_calculate(struct NetRxPkt *pkt, |
| const void *pkt_data, |
| size_t pkt_len) |
| { |
| struct virtio_net_hdr *vhdr; |
| bool isip4, isip6, istcp, isudp; |
| uint8_t *data; |
| int len; |
| |
| if (!net_rx_pkt_has_virt_hdr(pkt)) { |
| return; |
| } |
| |
| vhdr = net_rx_pkt_get_vhdr(pkt); |
| if (!VMXNET_FLAG_IS_SET(vhdr->flags, VIRTIO_NET_HDR_F_NEEDS_CSUM)) { |
| return; |
| } |
| |
| net_rx_pkt_get_protocols(pkt, &isip4, &isip6, &isudp, &istcp); |
| if (!(isip4 || isip6) || !(istcp || isudp)) { |
| return; |
| } |
| |
| vmxnet3_dump_virt_hdr(vhdr); |
| |
| /* Validate packet len: csum_start + scum_offset + length of csum field */ |
| if (pkt_len < (vhdr->csum_start + vhdr->csum_offset + 2)) { |
| VMW_PKPRN("packet len:%zu < csum_start(%d) + csum_offset(%d) + 2, " |
| "cannot calculate checksum", |
| pkt_len, vhdr->csum_start, vhdr->csum_offset); |
| return; |
| } |
| |
| data = (uint8_t *)pkt_data + vhdr->csum_start; |
| len = pkt_len - vhdr->csum_start; |
| /* Put the checksum obtained into the packet */ |
| stw_be_p(data + vhdr->csum_offset, |
| net_checksum_finish_nozero(net_checksum_add(len, data))); |
| |
| vhdr->flags &= ~VIRTIO_NET_HDR_F_NEEDS_CSUM; |
| vhdr->flags |= VIRTIO_NET_HDR_F_DATA_VALID; |
| } |
| |
| static void vmxnet3_rx_update_descr(struct NetRxPkt *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 (net_rx_pkt_is_vlan_stripped(pkt)) { |
| rxcd->ts = 1; |
| rxcd->tci = net_rx_pkt_get_vlan_tag(pkt); |
| } |
| |
| if (!net_rx_pkt_has_virt_hdr(pkt)) { |
| goto nocsum; |
| } |
| |
| vhdr = net_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; |
| } |
| |
| net_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_pci_dma_writev(PCIDevice *pci_dev, |
| 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); |
| |
| pci_dma_write(pci_dev, 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 void |
| vmxnet3_pci_dma_write_rxcd(PCIDevice *pcidev, dma_addr_t pa, |
| struct Vmxnet3_RxCompDesc *rxcd) |
| { |
| rxcd->val1 = cpu_to_le32(rxcd->val1); |
| rxcd->val2 = cpu_to_le32(rxcd->val2); |
| rxcd->val3 = cpu_to_le32(rxcd->val3); |
| pci_dma_write(pcidev, pa, rxcd, sizeof(*rxcd)); |
| } |
| |
| static bool |
| vmxnet3_indicate_packet(VMXNET3State *s) |
| { |
| struct Vmxnet3_RxDesc rxd; |
| PCIDevice *d = PCI_DEVICE(s); |
| 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 = net_rx_pkt_get_iovec(s->rx_pkt); |
| size_t bytes_copied = 0; |
| size_t bytes_left = net_rx_pkt_get_total_len(s->rx_pkt); |
| uint16_t num_frags = 0; |
| size_t chunk_size; |
| |
| net_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_pci_dma_writev(d, data, bytes_copied, rxd.addr, chunk_size); |
| bytes_copied += chunk_size; |
| bytes_left -= chunk_size; |
| |
| vmxnet3_dump_rx_descr(&rxd); |
| |
| if (ready_rxcd_pa != 0) { |
| vmxnet3_pci_dma_write_rxcd(d, ready_rxcd_pa, &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 (bytes_left == 0) { |
| 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 (ready_rxcd_pa != 0) { |
| rxcd.eop = 1; |
| rxcd.err = (bytes_left != 0); |
| |
| vmxnet3_pci_dma_write_rxcd(d, ready_rxcd_pa, &rxcd); |
| |
| /* Flush RX descriptor changes */ |
| smp_wmb(); |
| } |
| |
| if (new_rxcd_pa != 0) { |
| 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 (!s->device_active) { |
| return; |
| } |
| |
| 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) |
| { |
| VMXNET3State *s = opaque; |
| |
| 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); |
| return s->interrupt_states[l].is_masked; |
| } |
| |
| 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: " MAC_FMT, MAC_ARG(s->conf.macaddr.a)); |
| } |
| |
| static void vmxnet3_deactivate_device(VMXNET3State *s) |
| { |
| if (s->device_active) { |
| VMW_CBPRN("Deactivating vmxnet3..."); |
| net_tx_pkt_reset(s->tx_pkt); |
| net_tx_pkt_uninit(s->tx_pkt); |
| net_rx_pkt_uninit(s->rx_pkt); |
| s->device_active = false; |
| } |
| } |
| |
| static void vmxnet3_reset(VMXNET3State *s) |
| { |
| VMW_CBPRN("Resetting vmxnet3..."); |
| |
| vmxnet3_deactivate_device(s); |
| vmxnet3_reset_interrupt_states(s); |
| s->drv_shmem = 0; |
| s->tx_sop = true; |
| s->skip_current_tx_pkt = false; |
| } |
| |
| static void vmxnet3_update_rx_mode(VMXNET3State *s) |
| { |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| s->rx_mode = VMXNET3_READ_DRV_SHARED32(d, 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; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| /* Copy configuration from shared memory */ |
| VMXNET3_READ_DRV_SHARED(d, 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) |
| { |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| uint16_t list_bytes = |
| VMXNET3_READ_DRV_SHARED16(d, 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 (!s->mcast_list) { |
| if (s->mcast_list_len == 0) { |
| 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(d, s->drv_shmem, |
| devRead.rxFilterConf.mfTablePA); |
| |
| pci_dma_read(d, 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" MAC_FMT, MAC_ARG(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; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| if (!s->device_active) |
| return; |
| |
| for (i = 0; i < s->txq_num; i++) { |
| pci_dma_write(d, |
| 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++) { |
| pci_dma_write(d, |
| 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; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| VMXNET3_READ_DRV_SHARED(d, 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; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| pm_descr.confLen = |
| VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, devRead.pmConfDesc.confLen); |
| pm_descr.confVer = |
| VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, devRead.pmConfDesc.confVer); |
| pm_descr.confPA = |
| VMXNET3_READ_DRV_SHARED64(d, 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; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| guest_features = VMXNET3_READ_DRV_SHARED32(d, 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) { |
| qemu_set_offload(qemu_get_queue(s->nic)->peer, |
| rxcso_supported, |
| s->lro_supported, |
| s->lro_supported, |
| 0, |
| 0); |
| } |
| } |
| |
| static bool vmxnet3_verify_intx(VMXNET3State *s, int intx) |
| { |
| return s->msix_used || msi_enabled(PCI_DEVICE(s)) |
| || intx == pci_get_byte(s->parent_obj.config + PCI_INTERRUPT_PIN) - 1; |
| } |
| |
| static void vmxnet3_validate_interrupt_idx(bool is_msix, int idx) |
| { |
| int max_ints = is_msix ? VMXNET3_MAX_INTRS : VMXNET3_MAX_NMSIX_INTRS; |
| if (idx >= max_ints) { |
| hw_error("Bad interrupt index: %d\n", idx); |
| } |
| } |
| |
| static void vmxnet3_validate_interrupts(VMXNET3State *s) |
| { |
| int i; |
| |
| VMW_CFPRN("Verifying event interrupt index (%d)", s->event_int_idx); |
| vmxnet3_validate_interrupt_idx(s->msix_used, s->event_int_idx); |
| |
| for (i = 0; i < s->txq_num; i++) { |
| int idx = s->txq_descr[i].intr_idx; |
| VMW_CFPRN("Verifying TX queue %d interrupt index (%d)", i, idx); |
| vmxnet3_validate_interrupt_idx(s->msix_used, idx); |
| } |
| |
| for (i = 0; i < s->rxq_num; i++) { |
| int idx = s->rxq_descr[i].intr_idx; |
| VMW_CFPRN("Verifying RX queue %d interrupt index (%d)", i, idx); |
| vmxnet3_validate_interrupt_idx(s->msix_used, idx); |
| } |
| } |
| |
| static void vmxnet3_validate_queues(VMXNET3State *s) |
| { |
| /* |
| * txq_num and rxq_num are total number of queues |
| * configured by guest. These numbers must not |
| * exceed corresponding maximal values. |
| */ |
| |
| if (s->txq_num > VMXNET3_DEVICE_MAX_TX_QUEUES) { |
| hw_error("Bad TX queues number: %d\n", s->txq_num); |
| } |
| |
| if (s->rxq_num > VMXNET3_DEVICE_MAX_RX_QUEUES) { |
| hw_error("Bad RX queues number: %d\n", s->rxq_num); |
| } |
| } |
| |
| static void vmxnet3_activate_device(VMXNET3State *s) |
| { |
| int i; |
| static const uint32_t VMXNET3_DEF_TX_THRESHOLD = 1; |
| PCIDevice *d = PCI_DEVICE(s); |
| hwaddr qdescr_table_pa; |
| uint64_t pa; |
| uint32_t size; |
| |
| /* Verify configuration consistency */ |
| if (!vmxnet3_verify_driver_magic(d, s->drv_shmem)) { |
| VMW_ERPRN("Device configuration received from driver is invalid"); |
| return; |
| } |
| |
| /* Verify if device is active */ |
| if (s->device_active) { |
| VMW_CFPRN("Vmxnet3 device is active"); |
| 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(d, s->drv_shmem, devRead.misc.mtu); |
| VMW_CFPRN("MTU is %u", s->mtu); |
| |
| s->max_rx_frags = |
| VMXNET3_READ_DRV_SHARED16(d, 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(d, s->drv_shmem, devRead.intrConf.eventIntrIdx); |
| assert(vmxnet3_verify_intx(s, s->event_int_idx)); |
| VMW_CFPRN("Events interrupt line is %u", s->event_int_idx); |
| |
| s->auto_int_masking = |
| VMXNET3_READ_DRV_SHARED8(d, 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(d, s->drv_shmem, devRead.misc.numTxQueues); |
| s->rxq_num = |
| VMXNET3_READ_DRV_SHARED8(d, s->drv_shmem, devRead.misc.numRxQueues); |
| |
| VMW_CFPRN("Number of TX/RX queues %u/%u", s->txq_num, s->rxq_num); |
| vmxnet3_validate_queues(s); |
| |
| qdescr_table_pa = |
| VMXNET3_READ_DRV_SHARED64(d, 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(d, qdescr_pa, conf.intrIdx); |
| assert(vmxnet3_verify_intx(s, s->txq_descr[i].intr_idx)); |
| |
| 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(d, qdescr_pa, conf.txRingBasePA); |
| size = VMXNET3_READ_TX_QUEUE_DESCR32(d, qdescr_pa, conf.txRingSize); |
| |
| vmxnet3_ring_init(d, &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(d, qdescr_pa, conf.compRingBasePA); |
| size = VMXNET3_READ_TX_QUEUE_DESCR32(d, qdescr_pa, conf.compRingSize); |
| vmxnet3_ring_init(d, &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(d, qdescr_pa, |
| ctrl.txThreshold, |
| VMXNET3_DEF_TX_THRESHOLD); |
| } |
| |
| /* Preallocate TX packet wrapper */ |
| VMW_CFPRN("Max TX fragments is %u", s->max_tx_frags); |
| net_tx_pkt_init(&s->tx_pkt, PCI_DEVICE(s), |
| s->max_tx_frags, s->peer_has_vhdr); |
| net_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(d, qd_pa, conf.intrIdx); |
| assert(vmxnet3_verify_intx(s, s->rxq_descr[i].intr_idx)); |
| |
| 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(d, qd_pa, conf.rxRingBasePA[j]); |
| size = VMXNET3_READ_RX_QUEUE_DESCR32(d, qd_pa, conf.rxRingSize[j]); |
| vmxnet3_ring_init(d, &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(d, qd_pa, conf.compRingBasePA); |
| size = VMXNET3_READ_RX_QUEUE_DESCR32(d, qd_pa, conf.compRingSize); |
| vmxnet3_ring_init(d, &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)); |
| } |
| |
| vmxnet3_validate_interrupts(s); |
| |
| /* 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 - deactivate the device"); |
| vmxnet3_deactivate_device(s); |
| break; |
| |
| case VMXNET3_CMD_GET_CONF_INTR: |
| VMW_CBPRN("Set: VMXNET3_CMD_GET_CONF_INTR - interrupt configuration"); |
| break; |
| |
| case VMXNET3_CMD_GET_ADAPTIVE_RING_INFO: |
| VMW_CBPRN("Set: VMXNET3_CMD_GET_ADAPTIVE_RING_INFO - " |
| "adaptive ring info flags"); |
| break; |
| |
| case VMXNET3_CMD_GET_DID_LO: |
| VMW_CBPRN("Set: Get lower part of device ID"); |
| break; |
| |
| case VMXNET3_CMD_GET_DID_HI: |
| VMW_CBPRN("Set: Get upper part of device ID"); |
| break; |
| |
| case VMXNET3_CMD_GET_DEV_EXTRA_INFO: |
| VMW_CBPRN("Set: Get device extra info"); |
| 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: |
| case VMXNET3_CMD_GET_DEV_EXTRA_INFO: |
| 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; |
| |
| case VMXNET3_CMD_GET_ADAPTIVE_RING_INFO: |
| ret = VMXNET3_DISABLE_ADAPTIVE_RING; |
| break; |
| |
| case VMXNET3_CMD_GET_DID_LO: |
| ret = PCI_DEVICE_ID_VMWARE_VMXNET3; |
| break; |
| |
| case VMXNET3_CMD_GET_DID_HI: |
| ret = VMXNET3_DEVICE_REVISION; |
| break; |
| |
| default: |
| VMW_WRPRN("Received request for unknown command: %x", s->last_command); |
| ret = 0; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void vmxnet3_set_events(VMXNET3State *s, uint32_t val) |
| { |
| uint32_t events; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| VMW_CBPRN("Setting events: 0x%x", val); |
| events = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, ecr) | val; |
| VMXNET3_WRITE_DRV_SHARED32(d, s->drv_shmem, ecr, events); |
| } |
| |
| static void vmxnet3_ack_events(VMXNET3State *s, uint32_t val) |
| { |
| PCIDevice *d = PCI_DEVICE(s); |
| uint32_t events; |
| |
| VMW_CBPRN("Clearing events: 0x%x", val); |
| events = VMXNET3_READ_DRV_SHARED32(d, s->drv_shmem, ecr) & ~val; |
| VMXNET3_WRITE_DRV_SHARED32(d, 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 (val == 0) { |
| vmxnet3_deactivate_device(s); |
| } |
| 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); |
| g_assert_not_reached(); |
| 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_UPT_REVISION; |
| 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 (net_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: |
| g_assert_not_reached(); |
| } |
| |
| 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; |
| uint8_t min_buf[MIN_BUF_SIZE]; |
| |
| if (!vmxnet3_can_receive(nc)) { |
| VMW_PKPRN("Cannot receive now"); |
| return -1; |
| } |
| |
| if (s->peer_has_vhdr) { |
| net_rx_pkt_set_vhdr(s->rx_pkt, (struct virtio_net_hdr *)buf); |
| buf += sizeof(struct virtio_net_hdr); |
| size -= sizeof(struct virtio_net_hdr); |
| } |
| |
| /* Pad to minimum Ethernet frame length */ |
| if (size < sizeof(min_buf)) { |
| memcpy(min_buf, buf, size); |
| memset(&min_buf[size], 0, sizeof(min_buf) - size); |
| buf = min_buf; |
| size = sizeof(min_buf); |
| } |
| |
| net_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)) { |
| net_rx_pkt_set_protocols(s->rx_pkt, buf, size); |
| vmxnet3_rx_need_csum_calculate(s->rx_pkt, buf, size); |
| net_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: %zu of %zu 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_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_DRIVER_NIC, |
| .size = sizeof(NICState), |
| .receive = vmxnet3_receive, |
| .link_status_changed = vmxnet3_set_link_status, |
| }; |
| |
| static bool vmxnet3_peer_has_vnet_hdr(VMXNET3State *s) |
| { |
| NetClientState *nc = qemu_get_queue(s->nic); |
| |
| if (qemu_has_vnet_hdr(nc->peer)) { |
| return true; |
| } |
| |
| return false; |
| } |
| |
| static void vmxnet3_net_uninit(VMXNET3State *s) |
| { |
| g_free(s->mcast_list); |
| vmxnet3_deactivate_device(s); |
| qemu_del_nic(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) { |
| qemu_set_vnet_hdr_len(qemu_get_queue(s->nic)->peer, |
| sizeof(struct virtio_net_hdr)); |
| |
| qemu_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(s), |
| VMXNET3_MSIX_OFFSET(s), NULL); |
| |
| 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) { |
| vmxnet3_unuse_msix_vectors(s, VMXNET3_MAX_INTRS); |
| msix_uninit(d, &s->msix_bar, &s->msix_bar); |
| } |
| } |
| |
| static void |
| vmxnet3_cleanup_msi(VMXNET3State *s) |
| { |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| 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 SaveVMHandlers savevm_vmxnet3_msix = { |
| .save_state = vmxnet3_msix_save, |
| .load_state = vmxnet3_msix_load, |
| }; |
| |
| static uint64_t vmxnet3_device_serial_num(VMXNET3State *s) |
| { |
| uint64_t dsn_payload; |
| uint8_t *dsnp = (uint8_t *)&dsn_payload; |
| |
| dsnp[0] = 0xfe; |
| dsnp[1] = s->conf.macaddr.a[3]; |
| dsnp[2] = s->conf.macaddr.a[4]; |
| dsnp[3] = s->conf.macaddr.a[5]; |
| dsnp[4] = s->conf.macaddr.a[0]; |
| dsnp[5] = s->conf.macaddr.a[1]; |
| dsnp[6] = s->conf.macaddr.a[2]; |
| dsnp[7] = 0xff; |
| return dsn_payload; |
| } |
| |
| |
| #define VMXNET3_USE_64BIT (true) |
| #define VMXNET3_PER_VECTOR_MASK (false) |
| |
| static void vmxnet3_pci_realize(PCIDevice *pci_dev, Error **errp) |
| { |
| DeviceState *dev = DEVICE(pci_dev); |
| VMXNET3State *s = VMXNET3(pci_dev); |
| int ret; |
| |
| VMW_CBPRN("Starting init..."); |
| |
| memory_region_init_io(&s->bar0, OBJECT(s), &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, OBJECT(s), &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, OBJECT(s), "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; |
| |
| ret = msi_init(pci_dev, VMXNET3_MSI_OFFSET(s), VMXNET3_MAX_NMSIX_INTRS, |
| VMXNET3_USE_64BIT, VMXNET3_PER_VECTOR_MASK, NULL); |
| /* Any error other than -ENOTSUP(board's MSI support is broken) |
| * is a programming error. Fall back to INTx silently on -ENOTSUP */ |
| assert(!ret || ret == -ENOTSUP); |
| |
| if (!vmxnet3_init_msix(s)) { |
| VMW_WRPRN("Failed to initialize MSI-X, configuration is inconsistent."); |
| } |
| |
| vmxnet3_net_init(s); |
| |
| if (pci_is_express(pci_dev)) { |
| if (pci_bus_is_express(pci_get_bus(pci_dev))) { |
| pcie_endpoint_cap_init(pci_dev, VMXNET3_EXP_EP_OFFSET); |
| } |
| |
| pcie_dev_ser_num_init(pci_dev, VMXNET3_DSN_OFFSET, |
| vmxnet3_device_serial_num(s)); |
| } |
| |
| register_savevm_live(dev, "vmxnet3-msix", -1, 1, &savevm_vmxnet3_msix, s); |
| } |
| |
| static void vmxnet3_instance_init(Object *obj) |
| { |
| VMXNET3State *s = VMXNET3(obj); |
| device_add_bootindex_property(obj, &s->conf.bootindex, |
| "bootindex", "/ethernet-phy@0", |
| DEVICE(obj), NULL); |
| } |
| |
| 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); |
| } |
| |
| 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 int vmxnet3_pre_save(void *opaque) |
| { |
| VMXNET3State *s = opaque; |
| |
| s->mcast_list_buff_size = s->mcast_list_len * sizeof(MACAddr); |
| |
| return 0; |
| } |
| |
| static const VMStateDescription vmxstate_vmxnet3_mcast_list = { |
| .name = "vmxnet3/mcast_list", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .pre_load = vmxnet3_mcast_list_pre_load, |
| .needed = vmxnet3_mc_list_needed, |
| .fields = (VMStateField[]) { |
| VMSTATE_VBUFFER_UINT32(mcast_list, VMXNET3State, 0, NULL, |
| mcast_list_buff_size), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription vmstate_vmxnet3_ring = { |
| .name = "vmxnet3-ring", |
| .version_id = 0, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT64(pa, Vmxnet3Ring), |
| VMSTATE_UINT32(size, Vmxnet3Ring), |
| VMSTATE_UINT32(cell_size, Vmxnet3Ring), |
| VMSTATE_UINT32(next, Vmxnet3Ring), |
| VMSTATE_UINT8(gen, Vmxnet3Ring), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription vmstate_vmxnet3_tx_stats = { |
| .name = "vmxnet3-tx-stats", |
| .version_id = 0, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT64(TSOPktsTxOK, struct UPT1_TxStats), |
| VMSTATE_UINT64(TSOBytesTxOK, struct UPT1_TxStats), |
| VMSTATE_UINT64(ucastPktsTxOK, struct UPT1_TxStats), |
| VMSTATE_UINT64(ucastBytesTxOK, struct UPT1_TxStats), |
| VMSTATE_UINT64(mcastPktsTxOK, struct UPT1_TxStats), |
| VMSTATE_UINT64(mcastBytesTxOK, struct UPT1_TxStats), |
| VMSTATE_UINT64(bcastPktsTxOK, struct UPT1_TxStats), |
| VMSTATE_UINT64(bcastBytesTxOK, struct UPT1_TxStats), |
| VMSTATE_UINT64(pktsTxError, struct UPT1_TxStats), |
| VMSTATE_UINT64(pktsTxDiscard, struct UPT1_TxStats), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription vmstate_vmxnet3_txq_descr = { |
| .name = "vmxnet3-txq-descr", |
| .version_id = 0, |
| .fields = (VMStateField[]) { |
| VMSTATE_STRUCT(tx_ring, Vmxnet3TxqDescr, 0, vmstate_vmxnet3_ring, |
| Vmxnet3Ring), |
| VMSTATE_STRUCT(comp_ring, Vmxnet3TxqDescr, 0, vmstate_vmxnet3_ring, |
| Vmxnet3Ring), |
| VMSTATE_UINT8(intr_idx, Vmxnet3TxqDescr), |
| VMSTATE_UINT64(tx_stats_pa, Vmxnet3TxqDescr), |
| VMSTATE_STRUCT(txq_stats, Vmxnet3TxqDescr, 0, vmstate_vmxnet3_tx_stats, |
| struct UPT1_TxStats), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription vmstate_vmxnet3_rx_stats = { |
| .name = "vmxnet3-rx-stats", |
| .version_id = 0, |
| .fields = (VMStateField[]) { |
| VMSTATE_UINT64(LROPktsRxOK, struct UPT1_RxStats), |
| VMSTATE_UINT64(LROBytesRxOK, struct UPT1_RxStats), |
| VMSTATE_UINT64(ucastPktsRxOK, struct UPT1_RxStats), |
| VMSTATE_UINT64(ucastBytesRxOK, struct UPT1_RxStats), |
| VMSTATE_UINT64(mcastPktsRxOK, struct UPT1_RxStats), |
| VMSTATE_UINT64(mcastBytesRxOK, struct UPT1_RxStats), |
| VMSTATE_UINT64(bcastPktsRxOK, struct UPT1_RxStats), |
| VMSTATE_UINT64(bcastBytesRxOK, struct UPT1_RxStats), |
| VMSTATE_UINT64(pktsRxOutOfBuf, struct UPT1_RxStats), |
| VMSTATE_UINT64(pktsRxError, struct UPT1_RxStats), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription vmstate_vmxnet3_rxq_descr = { |
| .name = "vmxnet3-rxq-descr", |
| .version_id = 0, |
| .fields = (VMStateField[]) { |
| VMSTATE_STRUCT_ARRAY(rx_ring, Vmxnet3RxqDescr, |
| VMXNET3_RX_RINGS_PER_QUEUE, 0, |
| vmstate_vmxnet3_ring, Vmxnet3Ring), |
| VMSTATE_STRUCT(comp_ring, Vmxnet3RxqDescr, 0, vmstate_vmxnet3_ring, |
| Vmxnet3Ring), |
| VMSTATE_UINT8(intr_idx, Vmxnet3RxqDescr), |
| VMSTATE_UINT64(rx_stats_pa, Vmxnet3RxqDescr), |
| VMSTATE_STRUCT(rxq_stats, Vmxnet3RxqDescr, 0, vmstate_vmxnet3_rx_stats, |
| struct UPT1_RxStats), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static int vmxnet3_post_load(void *opaque, int version_id) |
| { |
| VMXNET3State *s = opaque; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| net_tx_pkt_init(&s->tx_pkt, PCI_DEVICE(s), |
| s->max_tx_frags, s->peer_has_vhdr); |
| net_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; |
| } |
| } |
| |
| vmxnet3_validate_queues(s); |
| vmxnet3_validate_interrupts(s); |
| |
| return 0; |
| } |
| |
| static const VMStateDescription vmstate_vmxnet3_int_state = { |
| .name = "vmxnet3-int-state", |
| .version_id = 0, |
| .fields = (VMStateField[]) { |
| VMSTATE_BOOL(is_masked, Vmxnet3IntState), |
| VMSTATE_BOOL(is_pending, Vmxnet3IntState), |
| VMSTATE_BOOL(is_asserted, Vmxnet3IntState), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static bool vmxnet3_vmstate_need_pcie_device(void *opaque) |
| { |
| VMXNET3State *s = VMXNET3(opaque); |
| |
| return !(s->compat_flags & VMXNET3_COMPAT_FLAG_DISABLE_PCIE); |
| } |
| |
| static bool vmxnet3_vmstate_test_pci_device(void *opaque, int version_id) |
| { |
| return !vmxnet3_vmstate_need_pcie_device(opaque); |
| } |
| |
| static const VMStateDescription vmstate_vmxnet3_pcie_device = { |
| .name = "vmxnet3/pcie", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .needed = vmxnet3_vmstate_need_pcie_device, |
| .fields = (VMStateField[]) { |
| VMSTATE_PCI_DEVICE(parent_obj, VMXNET3State), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static const VMStateDescription vmstate_vmxnet3 = { |
| .name = "vmxnet3", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .pre_save = vmxnet3_pre_save, |
| .post_load = vmxnet3_post_load, |
| .fields = (VMStateField[]) { |
| VMSTATE_STRUCT_TEST(parent_obj, VMXNET3State, |
| vmxnet3_vmstate_test_pci_device, 0, |
| vmstate_pci_device, PCIDevice), |
| 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_STRUCT_ARRAY(txq_descr, VMXNET3State, |
| VMXNET3_DEVICE_MAX_TX_QUEUES, 0, vmstate_vmxnet3_txq_descr, |
| Vmxnet3TxqDescr), |
| VMSTATE_STRUCT_ARRAY(rxq_descr, VMXNET3State, |
| VMXNET3_DEVICE_MAX_RX_QUEUES, 0, vmstate_vmxnet3_rxq_descr, |
| Vmxnet3RxqDescr), |
| VMSTATE_STRUCT_ARRAY(interrupt_states, VMXNET3State, |
| VMXNET3_MAX_INTRS, 0, vmstate_vmxnet3_int_state, |
| Vmxnet3IntState), |
| |
| VMSTATE_END_OF_LIST() |
| }, |
| .subsections = (const VMStateDescription*[]) { |
| &vmxstate_vmxnet3_mcast_list, |
| &vmstate_vmxnet3_pcie_device, |
| NULL |
| } |
| }; |
| |
| static Property vmxnet3_properties[] = { |
| DEFINE_NIC_PROPERTIES(VMXNET3State, conf), |
| DEFINE_PROP_BIT("x-old-msi-offsets", VMXNET3State, compat_flags, |
| VMXNET3_COMPAT_FLAG_OLD_MSI_OFFSETS_BIT, false), |
| DEFINE_PROP_BIT("x-disable-pcie", VMXNET3State, compat_flags, |
| VMXNET3_COMPAT_FLAG_DISABLE_PCIE_BIT, false), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void vmxnet3_realize(DeviceState *qdev, Error **errp) |
| { |
| VMXNET3Class *vc = VMXNET3_DEVICE_GET_CLASS(qdev); |
| PCIDevice *pci_dev = PCI_DEVICE(qdev); |
| VMXNET3State *s = VMXNET3(qdev); |
| |
| if (!(s->compat_flags & VMXNET3_COMPAT_FLAG_DISABLE_PCIE)) { |
| pci_dev->cap_present |= QEMU_PCI_CAP_EXPRESS; |
| } |
| |
| vc->parent_dc_realize(qdev, errp); |
| } |
| |
| static void vmxnet3_class_init(ObjectClass *class, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(class); |
| PCIDeviceClass *c = PCI_DEVICE_CLASS(class); |
| VMXNET3Class *vc = VMXNET3_DEVICE_CLASS(class); |
| |
| c->realize = vmxnet3_pci_realize; |
| 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->romfile = "efi-vmxnet3.rom"; |
| c->class_id = PCI_CLASS_NETWORK_ETHERNET; |
| c->subsystem_vendor_id = PCI_VENDOR_ID_VMWARE; |
| c->subsystem_id = PCI_DEVICE_ID_VMWARE_VMXNET3; |
| device_class_set_parent_realize(dc, vmxnet3_realize, |
| &vc->parent_dc_realize); |
| dc->desc = "VMWare Paravirtualized Ethernet v3"; |
| dc->reset = vmxnet3_qdev_reset; |
| dc->vmsd = &vmstate_vmxnet3; |
| dc->props = vmxnet3_properties; |
| set_bit(DEVICE_CATEGORY_NETWORK, dc->categories); |
| } |
| |
| static const TypeInfo vmxnet3_info = { |
| .name = TYPE_VMXNET3, |
| .parent = TYPE_PCI_DEVICE, |
| .class_size = sizeof(VMXNET3Class), |
| .instance_size = sizeof(VMXNET3State), |
| .class_init = vmxnet3_class_init, |
| .instance_init = vmxnet3_instance_init, |
| .interfaces = (InterfaceInfo[]) { |
| { INTERFACE_PCIE_DEVICE }, |
| { INTERFACE_CONVENTIONAL_PCI_DEVICE }, |
| { } |
| }, |
| }; |
| |
| static void vmxnet3_register_types(void) |
| { |
| VMW_CBPRN("vmxnet3_register_types called..."); |
| type_register_static(&vmxnet3_info); |
| } |
| |
| type_init(vmxnet3_register_types) |
