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sys/dev/virtio/network/if_vtnet.c
| Show First 20 Lines • Show All 256 Lines • ▼ Show 20 Lines | |||||
| #define vtnet_gtoh32(_sc, _val) virtio_gtoh32(vtnet_modern(_sc), _val) | #define vtnet_gtoh32(_sc, _val) virtio_gtoh32(vtnet_modern(_sc), _val) | ||||
| #define vtnet_gtoh64(_sc, _val) virtio_gtoh64(vtnet_modern(_sc), _val) | #define vtnet_gtoh64(_sc, _val) virtio_gtoh64(vtnet_modern(_sc), _val) | ||||
| /* Tunables. */ | /* Tunables. */ | ||||
| static SYSCTL_NODE(_hw, OID_AUTO, vtnet, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, | static SYSCTL_NODE(_hw, OID_AUTO, vtnet, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, | ||||
| "VirtIO Net driver parameters"); | "VirtIO Net driver parameters"); | ||||
| static int vtnet_csum_disable = 0; | static int vtnet_csum_disable = 0; | ||||
| TUNABLE_INT("hw.vtnet.csum_disable", &vtnet_csum_disable); | |||||
| SYSCTL_INT(_hw_vtnet, OID_AUTO, csum_disable, CTLFLAG_RDTUN, | SYSCTL_INT(_hw_vtnet, OID_AUTO, csum_disable, CTLFLAG_RDTUN, | ||||
| &vtnet_csum_disable, 0, "Disables receive and send checksum offload"); | &vtnet_csum_disable, 0, "Disables receive and send checksum offload"); | ||||
| static int vtnet_fixup_needs_csum = 0; | static int vtnet_fixup_needs_csum = 0; | ||||
| SYSCTL_INT(_hw_vtnet, OID_AUTO, fixup_needs_csum, CTLFLAG_RDTUN, | SYSCTL_INT(_hw_vtnet, OID_AUTO, fixup_needs_csum, CTLFLAG_RDTUN, | ||||
| &vtnet_fixup_needs_csum, 0, | &vtnet_fixup_needs_csum, 0, | ||||
| "Calculate valid checksum for NEEDS_CSUM packets"); | "Calculate valid checksum for NEEDS_CSUM packets"); | ||||
| static int vtnet_tso_disable = 0; | static int vtnet_tso_disable = 0; | ||||
| TUNABLE_INT("hw.vtnet.tso_disable", &vtnet_tso_disable); | SYSCTL_INT(_hw_vtnet, OID_AUTO, tso_disable, CTLFLAG_RDTUN, | ||||
| SYSCTL_INT(_hw_vtnet, OID_AUTO, tso_disable, CTLFLAG_RDTUN, &vtnet_tso_disable, | &vtnet_tso_disable, 0, "Disables TSO"); | ||||
| 0, "Disables TCP Segmentation Offload"); | |||||
| static int vtnet_lro_disable = 0; | static int vtnet_lro_disable = 0; | ||||
| TUNABLE_INT("hw.vtnet.lro_disable", &vtnet_lro_disable); | SYSCTL_INT(_hw_vtnet, OID_AUTO, lro_disable, CTLFLAG_RDTUN, | ||||
| SYSCTL_INT(_hw_vtnet, OID_AUTO, lro_disable, CTLFLAG_RDTUN, &vtnet_lro_disable, | &vtnet_lro_disable, 0, "Disables hardware LRO"); | ||||
| 0, "Disables TCP Large Receive Offload"); | |||||
| static int vtnet_mq_disable = 0; | static int vtnet_mq_disable = 0; | ||||
| TUNABLE_INT("hw.vtnet.mq_disable", &vtnet_mq_disable); | SYSCTL_INT(_hw_vtnet, OID_AUTO, mq_disable, CTLFLAG_RDTUN, | ||||
| SYSCTL_INT(_hw_vtnet, OID_AUTO, mq_disable, CTLFLAG_RDTUN, &vtnet_mq_disable, | &vtnet_mq_disable, 0, "Disables multiqueue support"); | ||||
| 0, "Disables multiqueue support"); | |||||
| static int vtnet_mq_max_pairs = VTNET_MAX_QUEUE_PAIRS; | static int vtnet_mq_max_pairs = VTNET_MAX_QUEUE_PAIRS; | ||||
| TUNABLE_INT("hw.vtnet.mq_max_pairs", &vtnet_mq_max_pairs); | |||||
| SYSCTL_INT(_hw_vtnet, OID_AUTO, mq_max_pairs, CTLFLAG_RDTUN, | SYSCTL_INT(_hw_vtnet, OID_AUTO, mq_max_pairs, CTLFLAG_RDTUN, | ||||
| &vtnet_mq_max_pairs, 0, "Sets the maximum number of multiqueue pairs"); | &vtnet_mq_max_pairs, 0, "Maximum number of multiqueue pairs"); | ||||
| static int vtnet_tso_maxlen = IP_MAXPACKET; | static int vtnet_tso_maxlen = IP_MAXPACKET; | ||||
| TUNABLE_INT("hw.vtnet.tso_maxlen", &vtnet_tso_maxlen); | |||||
| SYSCTL_INT(_hw_vtnet, OID_AUTO, tso_maxlen, CTLFLAG_RDTUN, | SYSCTL_INT(_hw_vtnet, OID_AUTO, tso_maxlen, CTLFLAG_RDTUN, | ||||
| &vtnet_tso_maxlen, 0, "TSO burst limit"); | &vtnet_tso_maxlen, 0, "TSO burst limit"); | ||||
| static int vtnet_rx_process_limit = 512; | static int vtnet_rx_process_limit = 512; | ||||
| TUNABLE_INT("hw.vtnet.rx_process_limit", &vtnet_rx_process_limit); | |||||
| SYSCTL_INT(_hw_vtnet, OID_AUTO, rx_process_limit, CTLFLAG_RDTUN, | SYSCTL_INT(_hw_vtnet, OID_AUTO, rx_process_limit, CTLFLAG_RDTUN, | ||||
| &vtnet_rx_process_limit, 0, "Limits RX segments processed in a single pass"); | &vtnet_rx_process_limit, 0, | ||||
| "Number of RX segments processed in one pass"); | |||||
| static uma_zone_t vtnet_tx_header_zone; | static uma_zone_t vtnet_tx_header_zone; | ||||
| static struct virtio_feature_desc vtnet_feature_desc[] = { | static struct virtio_feature_desc vtnet_feature_desc[] = { | ||||
| { VIRTIO_NET_F_CSUM, "TxChecksum" }, | { VIRTIO_NET_F_CSUM, "TxChecksum" }, | ||||
| { VIRTIO_NET_F_GUEST_CSUM, "RxChecksum" }, | { VIRTIO_NET_F_GUEST_CSUM, "RxChecksum" }, | ||||
| { VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, "CtrlRxOffloads" }, | { VIRTIO_NET_F_CTRL_GUEST_OFFLOADS, "CtrlRxOffloads" }, | ||||
| { VIRTIO_NET_F_MAC, "MAC" }, | { VIRTIO_NET_F_MAC, "MAC" }, | ||||
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