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diff --git a/sys/dev/hyperv/netvsc/hv_net_vsc.h b/sys/dev/hyperv/netvsc/hv_net_vsc.h
index 2e3e2aacc1e3..014f823d8846 100644
--- a/sys/dev/hyperv/netvsc/hv_net_vsc.h
+++ b/sys/dev/hyperv/netvsc/hv_net_vsc.h
@@ -1,281 +1,282 @@
/*-
* Copyright (c) 2009-2012,2016 Microsoft Corp.
* Copyright (c) 2010-2012 Citrix Inc.
* Copyright (c) 2012 NetApp Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* HyperV vmbus (virtual machine bus) network VSC (virtual services client)
* header file
*
* (Updated from unencumbered NvspProtocol.h)
*/
#ifndef __HV_NET_VSC_H__
#define __HV_NET_VSC_H__
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/queue.h>
#include <sys/taskqueue.h>
#include <sys/sema.h>
#include <sys/sx.h>
#include <machine/bus.h>
#include <sys/bus.h>
#include <sys/bus_dma.h>
#include <netinet/in.h>
#include <netinet/tcp_lro.h>
#include <net/ethernet.h>
#include <net/if.h>
#include <net/if_media.h>
#include <dev/hyperv/include/hyperv.h>
#include <dev/hyperv/include/hyperv_busdma.h>
#include <dev/hyperv/include/vmbus.h>
#include <dev/hyperv/netvsc/ndis.h>
#define HN_USE_TXDESC_BUFRING
MALLOC_DECLARE(M_NETVSC);
/*
* The following arguably belongs in a separate header file
*/
/*
* Defines
*/
#define NETVSC_SEND_BUFFER_SIZE (1024*1024*15) /* 15M */
#define NETVSC_RECEIVE_BUFFER_SIZE_LEGACY (1024*1024*15) /* 15MB */
#define NETVSC_RECEIVE_BUFFER_SIZE (1024*1024*16) /* 16MB */
/*
* Maximum MTU we permit to be configured for a netvsc interface.
* When the code was developed, a max MTU of 12232 was tested and
* proven to work. 9K is a reasonable maximum for an Ethernet.
*/
#define NETVSC_MAX_CONFIGURABLE_MTU (9 * 1024)
#define NETVSC_PACKET_SIZE PAGE_SIZE
/*
* Data types
*/
struct vmbus_channel;
#define NETVSC_DEVICE_RING_BUFFER_SIZE (128 * PAGE_SIZE)
#define NETVSC_PACKET_MAXPAGE 32
#define HN_XACT_REQ_PGCNT 2
#define HN_XACT_RESP_PGCNT 2
#define HN_XACT_REQ_SIZE (HN_XACT_REQ_PGCNT * PAGE_SIZE)
#define HN_XACT_RESP_SIZE (HN_XACT_RESP_PGCNT * PAGE_SIZE)
struct hn_txdesc;
#ifndef HN_USE_TXDESC_BUFRING
SLIST_HEAD(hn_txdesc_list, hn_txdesc);
#else
struct buf_ring;
#endif
struct hn_tx_ring;
struct hn_rx_ring {
struct ifnet *hn_ifp;
struct hn_tx_ring *hn_txr;
void *hn_rdbuf;
uint8_t *hn_rxbuf; /* shadow sc->hn_rxbuf */
int hn_rx_idx;
/* Trust csum verification on host side */
int hn_trust_hcsum; /* HN_TRUST_HCSUM_ */
struct lro_ctrl hn_lro;
u_long hn_csum_ip;
u_long hn_csum_tcp;
u_long hn_csum_udp;
u_long hn_csum_trusted;
u_long hn_lro_tried;
u_long hn_small_pkts;
u_long hn_pkts;
u_long hn_rss_pkts;
/* Rarely used stuffs */
struct sysctl_oid *hn_rx_sysctl_tree;
int hn_rx_flags;
void *hn_br; /* TX/RX bufring */
struct hyperv_dma hn_br_dma;
} __aligned(CACHE_LINE_SIZE);
#define HN_TRUST_HCSUM_IP 0x0001
#define HN_TRUST_HCSUM_TCP 0x0002
#define HN_TRUST_HCSUM_UDP 0x0004
#define HN_RX_FLAG_ATTACHED 0x1
struct hn_tx_ring {
#ifndef HN_USE_TXDESC_BUFRING
struct mtx hn_txlist_spin;
struct hn_txdesc_list hn_txlist;
#else
struct buf_ring *hn_txdesc_br;
#endif
int hn_txdesc_cnt;
int hn_txdesc_avail;
u_short hn_has_txeof;
u_short hn_txdone_cnt;
int hn_sched_tx;
void (*hn_txeof)(struct hn_tx_ring *);
struct taskqueue *hn_tx_taskq;
struct task hn_tx_task;
struct task hn_txeof_task;
struct buf_ring *hn_mbuf_br;
int hn_oactive;
int hn_tx_idx;
int hn_tx_flags;
struct mtx hn_tx_lock;
struct hn_softc *hn_sc;
struct vmbus_channel *hn_chan;
int hn_direct_tx_size;
int hn_chim_size;
bus_dma_tag_t hn_tx_data_dtag;
uint64_t hn_csum_assist;
int (*hn_sendpkt)(struct hn_tx_ring *, struct hn_txdesc *);
int hn_suspended;
int hn_gpa_cnt;
struct vmbus_gpa hn_gpa[NETVSC_PACKET_MAXPAGE];
u_long hn_no_txdescs;
u_long hn_send_failed;
u_long hn_txdma_failed;
u_long hn_tx_collapsed;
u_long hn_tx_chimney_tried;
u_long hn_tx_chimney;
u_long hn_pkts;
/* Rarely used stuffs */
struct hn_txdesc *hn_txdesc;
bus_dma_tag_t hn_tx_rndis_dtag;
struct sysctl_oid *hn_tx_sysctl_tree;
} __aligned(CACHE_LINE_SIZE);
#define HN_TX_FLAG_ATTACHED 0x1
#define HN_TX_FLAG_HASHVAL 0x2 /* support HASHVAL pktinfo */
/*
* Device-specific softc structure
*/
struct hn_softc {
struct ifnet *hn_ifp;
struct ifmedia hn_media;
device_t hn_dev;
int hn_if_flags;
struct sx hn_lock;
struct vmbus_channel *hn_prichan;
int hn_rx_ring_cnt;
int hn_rx_ring_inuse;
struct hn_rx_ring *hn_rx_ring;
int hn_tx_ring_cnt;
int hn_tx_ring_inuse;
struct hn_tx_ring *hn_tx_ring;
uint8_t *hn_chim;
u_long *hn_chim_bmap;
int hn_chim_bmap_cnt;
int hn_chim_cnt;
int hn_chim_szmax;
int hn_cpu;
struct taskqueue *hn_tx_taskq;
struct sysctl_oid *hn_tx_sysctl_tree;
struct sysctl_oid *hn_rx_sysctl_tree;
struct vmbus_xact_ctx *hn_xact;
uint32_t hn_nvs_ver;
+ uint32_t hn_rx_filter;
struct taskqueue *hn_mgmt_taskq;
struct taskqueue *hn_mgmt_taskq0;
struct task hn_link_task;
struct task hn_netchg_init;
struct timeout_task hn_netchg_status;
uint32_t hn_link_flags; /* HN_LINK_FLAG_ */
uint32_t hn_caps; /* HN_CAP_ */
uint32_t hn_flags; /* HN_FLAG_ */
void *hn_rxbuf;
uint32_t hn_rxbuf_gpadl;
struct hyperv_dma hn_rxbuf_dma;
uint32_t hn_chim_gpadl;
struct hyperv_dma hn_chim_dma;
uint32_t hn_rndis_rid;
uint32_t hn_ndis_ver;
int hn_ndis_tso_szmax;
int hn_ndis_tso_sgmin;
struct ndis_rssprm_toeplitz hn_rss;
};
#define HN_FLAG_RXBUF_CONNECTED 0x0001
#define HN_FLAG_CHIM_CONNECTED 0x0002
#define HN_FLAG_HAS_RSSKEY 0x0004
#define HN_FLAG_HAS_RSSIND 0x0008
#define HN_FLAG_SYNTH_ATTACHED 0x0010
#define HN_CAP_VLAN 0x0001
#define HN_CAP_MTU 0x0002
#define HN_CAP_IPCS 0x0004
#define HN_CAP_TCP4CS 0x0008
#define HN_CAP_TCP6CS 0x0010
#define HN_CAP_UDP4CS 0x0020
#define HN_CAP_UDP6CS 0x0040
#define HN_CAP_TSO4 0x0080
#define HN_CAP_TSO6 0x0100
#define HN_CAP_HASHVAL 0x0200
#define HN_LINK_FLAG_LINKUP 0x0001
#define HN_LINK_FLAG_NETCHG 0x0002
#endif /* __HV_NET_VSC_H__ */
diff --git a/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c b/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
index c4315166bdaa..5bd46e8e8273 100644
--- a/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
+++ b/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
@@ -1,4179 +1,4233 @@
/*-
* Copyright (c) 2010-2012 Citrix Inc.
* Copyright (c) 2009-2012,2016 Microsoft Corp.
* Copyright (c) 2012 NetApp Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice unmodified, this list of conditions, and the following
* disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*-
* Copyright (c) 2004-2006 Kip Macy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "opt_inet6.h"
#include "opt_inet.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
#include <sys/malloc.h>
#include <sys/module.h>
#include <sys/kernel.h>
#include <sys/socket.h>
#include <sys/queue.h>
#include <sys/lock.h>
#include <sys/sx.h>
#include <sys/smp.h>
#include <sys/sysctl.h>
#include <sys/buf_ring.h>
#include <net/if.h>
#include <net/if_arp.h>
#include <net/ethernet.h>
#include <net/if_dl.h>
#include <net/if_media.h>
#include <net/rndis.h>
#include <net/bpf.h>
#include <net/if_var.h>
#include <net/if_types.h>
#include <net/if_vlan_var.h>
#include <netinet/in_systm.h>
#include <netinet/in.h>
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#include <netinet/tcp.h>
#include <netinet/udp.h>
#include <netinet/ip6.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/vm_kern.h>
#include <vm/pmap.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <machine/frame.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <sys/mutex.h>
#include <sys/errno.h>
#include <sys/types.h>
#include <machine/atomic.h>
#include <machine/intr_machdep.h>
#include <machine/in_cksum.h>
#include <dev/hyperv/include/hyperv.h>
#include <dev/hyperv/include/hyperv_busdma.h>
#include <dev/hyperv/include/vmbus_xact.h>
#include <dev/hyperv/netvsc/hv_net_vsc.h>
#include <dev/hyperv/netvsc/hv_rndis_filter.h>
#include <dev/hyperv/netvsc/ndis.h>
#include "vmbus_if.h"
/* Short for Hyper-V network interface */
#define NETVSC_DEVNAME "hn"
/*
* It looks like offset 0 of buf is reserved to hold the softc pointer.
* The sc pointer evidently not needed, and is not presently populated.
* The packet offset is where the netvsc_packet starts in the buffer.
*/
#define HV_NV_SC_PTR_OFFSET_IN_BUF 0
#define HV_NV_PACKET_OFFSET_IN_BUF 16
/* YYY should get it from the underlying channel */
#define HN_TX_DESC_CNT 512
#define HN_LROENT_CNT_DEF 128
#define HN_RING_CNT_DEF_MAX 8
#define HN_RNDIS_PKT_LEN \
(sizeof(struct rndis_packet_msg) + \
HN_RNDIS_PKTINFO_SIZE(HN_NDIS_HASH_VALUE_SIZE) + \
HN_RNDIS_PKTINFO_SIZE(NDIS_VLAN_INFO_SIZE) + \
HN_RNDIS_PKTINFO_SIZE(NDIS_LSO2_INFO_SIZE) + \
HN_RNDIS_PKTINFO_SIZE(NDIS_TXCSUM_INFO_SIZE))
#define HN_RNDIS_PKT_BOUNDARY PAGE_SIZE
#define HN_RNDIS_PKT_ALIGN CACHE_LINE_SIZE
#define HN_TX_DATA_BOUNDARY PAGE_SIZE
#define HN_TX_DATA_MAXSIZE IP_MAXPACKET
#define HN_TX_DATA_SEGSIZE PAGE_SIZE
/* -1 for RNDIS packet message */
#define HN_TX_DATA_SEGCNT_MAX (NETVSC_PACKET_MAXPAGE - 1)
#define HN_DIRECT_TX_SIZE_DEF 128
#define HN_EARLY_TXEOF_THRESH 8
struct hn_txdesc {
#ifndef HN_USE_TXDESC_BUFRING
SLIST_ENTRY(hn_txdesc) link;
#endif
struct mbuf *m;
struct hn_tx_ring *txr;
int refs;
uint32_t flags; /* HN_TXD_FLAG_ */
struct hn_send_ctx send_ctx;
uint32_t chim_index;
int chim_size;
bus_dmamap_t data_dmap;
bus_addr_t rndis_pkt_paddr;
struct rndis_packet_msg *rndis_pkt;
bus_dmamap_t rndis_pkt_dmap;
};
#define HN_TXD_FLAG_ONLIST 0x1
#define HN_TXD_FLAG_DMAMAP 0x2
#define HN_LRO_LENLIM_MULTIRX_DEF (12 * ETHERMTU)
#define HN_LRO_LENLIM_DEF (25 * ETHERMTU)
/* YYY 2*MTU is a bit rough, but should be good enough. */
#define HN_LRO_LENLIM_MIN(ifp) (2 * (ifp)->if_mtu)
#define HN_LRO_ACKCNT_DEF 1
#define HN_LOCK_INIT(sc) \
sx_init(&(sc)->hn_lock, device_get_nameunit((sc)->hn_dev))
#define HN_LOCK_ASSERT(sc) sx_assert(&(sc)->hn_lock, SA_XLOCKED)
#define HN_LOCK_DESTROY(sc) sx_destroy(&(sc)->hn_lock)
#define HN_LOCK(sc) sx_xlock(&(sc)->hn_lock)
#define HN_UNLOCK(sc) sx_xunlock(&(sc)->hn_lock)
#define HN_CSUM_IP_MASK (CSUM_IP | CSUM_IP_TCP | CSUM_IP_UDP)
#define HN_CSUM_IP6_MASK (CSUM_IP6_TCP | CSUM_IP6_UDP)
#define HN_CSUM_IP_HWASSIST(sc) \
((sc)->hn_tx_ring[0].hn_csum_assist & HN_CSUM_IP_MASK)
#define HN_CSUM_IP6_HWASSIST(sc) \
((sc)->hn_tx_ring[0].hn_csum_assist & HN_CSUM_IP6_MASK)
/*
* Globals
*/
SYSCTL_NODE(_hw, OID_AUTO, hn, CTLFLAG_RD | CTLFLAG_MPSAFE, NULL,
"Hyper-V network interface");
/* Trust tcp segements verification on host side. */
static int hn_trust_hosttcp = 1;
SYSCTL_INT(_hw_hn, OID_AUTO, trust_hosttcp, CTLFLAG_RDTUN,
&hn_trust_hosttcp, 0,
"Trust tcp segement verification on host side, "
"when csum info is missing (global setting)");
/* Trust udp datagrams verification on host side. */
static int hn_trust_hostudp = 1;
SYSCTL_INT(_hw_hn, OID_AUTO, trust_hostudp, CTLFLAG_RDTUN,
&hn_trust_hostudp, 0,
"Trust udp datagram verification on host side, "
"when csum info is missing (global setting)");
/* Trust ip packets verification on host side. */
static int hn_trust_hostip = 1;
SYSCTL_INT(_hw_hn, OID_AUTO, trust_hostip, CTLFLAG_RDTUN,
&hn_trust_hostip, 0,
"Trust ip packet verification on host side, "
"when csum info is missing (global setting)");
/* Limit TSO burst size */
static int hn_tso_maxlen = IP_MAXPACKET;
SYSCTL_INT(_hw_hn, OID_AUTO, tso_maxlen, CTLFLAG_RDTUN,
&hn_tso_maxlen, 0, "TSO burst limit");
/* Limit chimney send size */
static int hn_tx_chimney_size = 0;
SYSCTL_INT(_hw_hn, OID_AUTO, tx_chimney_size, CTLFLAG_RDTUN,
&hn_tx_chimney_size, 0, "Chimney send packet size limit");
/* Limit the size of packet for direct transmission */
static int hn_direct_tx_size = HN_DIRECT_TX_SIZE_DEF;
SYSCTL_INT(_hw_hn, OID_AUTO, direct_tx_size, CTLFLAG_RDTUN,
&hn_direct_tx_size, 0, "Size of the packet for direct transmission");
#if defined(INET) || defined(INET6)
#if __FreeBSD_version >= 1100095
static int hn_lro_entry_count = HN_LROENT_CNT_DEF;
SYSCTL_INT(_hw_hn, OID_AUTO, lro_entry_count, CTLFLAG_RDTUN,
&hn_lro_entry_count, 0, "LRO entry count");
#endif
#endif
static int hn_share_tx_taskq = 0;
SYSCTL_INT(_hw_hn, OID_AUTO, share_tx_taskq, CTLFLAG_RDTUN,
&hn_share_tx_taskq, 0, "Enable shared TX taskqueue");
static struct taskqueue *hn_tx_taskq;
#ifndef HN_USE_TXDESC_BUFRING
static int hn_use_txdesc_bufring = 0;
#else
static int hn_use_txdesc_bufring = 1;
#endif
SYSCTL_INT(_hw_hn, OID_AUTO, use_txdesc_bufring, CTLFLAG_RD,
&hn_use_txdesc_bufring, 0, "Use buf_ring for TX descriptors");
static int hn_bind_tx_taskq = -1;
SYSCTL_INT(_hw_hn, OID_AUTO, bind_tx_taskq, CTLFLAG_RDTUN,
&hn_bind_tx_taskq, 0, "Bind TX taskqueue to the specified cpu");
static int hn_use_if_start = 0;
SYSCTL_INT(_hw_hn, OID_AUTO, use_if_start, CTLFLAG_RDTUN,
&hn_use_if_start, 0, "Use if_start TX method");
static int hn_chan_cnt = 0;
SYSCTL_INT(_hw_hn, OID_AUTO, chan_cnt, CTLFLAG_RDTUN,
&hn_chan_cnt, 0,
"# of channels to use; each channel has one RX ring and one TX ring");
static int hn_tx_ring_cnt = 0;
SYSCTL_INT(_hw_hn, OID_AUTO, tx_ring_cnt, CTLFLAG_RDTUN,
&hn_tx_ring_cnt, 0, "# of TX rings to use");
static int hn_tx_swq_depth = 0;
SYSCTL_INT(_hw_hn, OID_AUTO, tx_swq_depth, CTLFLAG_RDTUN,
&hn_tx_swq_depth, 0, "Depth of IFQ or BUFRING");
#if __FreeBSD_version >= 1100095
static u_int hn_lro_mbufq_depth = 0;
SYSCTL_UINT(_hw_hn, OID_AUTO, lro_mbufq_depth, CTLFLAG_RDTUN,
&hn_lro_mbufq_depth, 0, "Depth of LRO mbuf queue");
#endif
static u_int hn_cpu_index;
/*
* Forward declarations
*/
static void hn_stop(struct hn_softc *sc);
static void hn_init_locked(struct hn_softc *sc);
static void hn_init(void *xsc);
static int hn_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data);
static int hn_start_locked(struct hn_tx_ring *txr, int len);
static void hn_start(struct ifnet *ifp);
static void hn_start_txeof(struct hn_tx_ring *);
static int hn_ifmedia_upd(struct ifnet *ifp);
static void hn_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr);
#if __FreeBSD_version >= 1100099
static int hn_lro_lenlim_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_lro_ackcnt_sysctl(SYSCTL_HANDLER_ARGS);
#endif
static int hn_trust_hcsum_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_chim_size_sysctl(SYSCTL_HANDLER_ARGS);
#if __FreeBSD_version < 1100095
static int hn_rx_stat_int_sysctl(SYSCTL_HANDLER_ARGS);
#else
static int hn_rx_stat_u64_sysctl(SYSCTL_HANDLER_ARGS);
#endif
static int hn_rx_stat_ulong_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_tx_stat_ulong_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_tx_conf_int_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_ndis_version_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_caps_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_hwassist_sysctl(SYSCTL_HANDLER_ARGS);
+static int hn_rxfilter_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_rss_key_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_rss_ind_sysctl(SYSCTL_HANDLER_ARGS);
static int hn_check_iplen(const struct mbuf *, int);
static int hn_create_tx_ring(struct hn_softc *, int);
static void hn_destroy_tx_ring(struct hn_tx_ring *);
static int hn_create_tx_data(struct hn_softc *, int);
static void hn_fixup_tx_data(struct hn_softc *);
static void hn_destroy_tx_data(struct hn_softc *);
static void hn_start_taskfunc(void *, int);
static void hn_start_txeof_taskfunc(void *, int);
static void hn_link_taskfunc(void *, int);
static void hn_netchg_init_taskfunc(void *, int);
static void hn_netchg_status_taskfunc(void *, int);
static void hn_suspend_mgmt_taskfunc(void *, int);
static int hn_encap(struct hn_tx_ring *, struct hn_txdesc *, struct mbuf **);
static int hn_create_rx_data(struct hn_softc *sc, int);
static void hn_destroy_rx_data(struct hn_softc *sc);
static void hn_set_chim_size(struct hn_softc *, int);
static void hn_set_tso_maxsize(struct hn_softc *, int, int);
static int hn_chan_attach(struct hn_softc *, struct vmbus_channel *);
static void hn_chan_detach(struct hn_softc *, struct vmbus_channel *);
static int hn_attach_subchans(struct hn_softc *);
static void hn_detach_allchans(struct hn_softc *);
static void hn_chan_callback(struct vmbus_channel *chan, void *xrxr);
static void hn_set_ring_inuse(struct hn_softc *, int);
static int hn_synth_attach(struct hn_softc *, int);
static void hn_synth_detach(struct hn_softc *);
static bool hn_tx_ring_pending(struct hn_tx_ring *);
static void hn_suspend(struct hn_softc *);
static void hn_suspend_data(struct hn_softc *);
static void hn_suspend_mgmt(struct hn_softc *);
static void hn_resume(struct hn_softc *);
static void hn_resume_data(struct hn_softc *);
static void hn_resume_mgmt(struct hn_softc *);
static void hn_rx_drain(struct vmbus_channel *);
static void hn_tx_resume(struct hn_softc *, int);
static void hn_tx_ring_qflush(struct hn_tx_ring *);
static int netvsc_detach(device_t dev);
static void hn_link_status(struct hn_softc *);
static int hn_sendpkt_rndis_sglist(struct hn_tx_ring *, struct hn_txdesc *);
static int hn_sendpkt_rndis_chim(struct hn_tx_ring *, struct hn_txdesc *);
+static int hn_set_rxfilter(struct hn_softc *);
static void hn_nvs_handle_notify(struct hn_softc *sc,
const struct vmbus_chanpkt_hdr *pkt);
static void hn_nvs_handle_comp(struct hn_softc *sc, struct vmbus_channel *chan,
const struct vmbus_chanpkt_hdr *pkt);
static void hn_nvs_handle_rxbuf(struct hn_softc *sc, struct hn_rx_ring *rxr,
struct vmbus_channel *chan,
const struct vmbus_chanpkt_hdr *pkthdr);
static void hn_nvs_ack_rxbuf(struct vmbus_channel *chan, uint64_t tid);
static int hn_transmit(struct ifnet *, struct mbuf *);
static void hn_xmit_qflush(struct ifnet *);
static int hn_xmit(struct hn_tx_ring *, int);
static void hn_xmit_txeof(struct hn_tx_ring *);
static void hn_xmit_taskfunc(void *, int);
static void hn_xmit_txeof_taskfunc(void *, int);
static const uint8_t hn_rss_key_default[NDIS_HASH_KEYSIZE_TOEPLITZ] = {
0x6d, 0x5a, 0x56, 0xda, 0x25, 0x5b, 0x0e, 0xc2,
0x41, 0x67, 0x25, 0x3d, 0x43, 0xa3, 0x8f, 0xb0,
0xd0, 0xca, 0x2b, 0xcb, 0xae, 0x7b, 0x30, 0xb4,
0x77, 0xcb, 0x2d, 0xa3, 0x80, 0x30, 0xf2, 0x0c,
0x6a, 0x42, 0xb7, 0x3b, 0xbe, 0xac, 0x01, 0xfa
};
#if __FreeBSD_version >= 1100099
static void
hn_set_lro_lenlim(struct hn_softc *sc, int lenlim)
{
int i;
for (i = 0; i < sc->hn_rx_ring_inuse; ++i)
sc->hn_rx_ring[i].hn_lro.lro_length_lim = lenlim;
}
#endif
static __inline int
hn_nvs_send_rndis_sglist1(struct vmbus_channel *chan, uint32_t rndis_mtype,
struct hn_send_ctx *sndc, struct vmbus_gpa *gpa, int gpa_cnt)
{
struct hn_nvs_rndis rndis;
rndis.nvs_type = HN_NVS_TYPE_RNDIS;
rndis.nvs_rndis_mtype = rndis_mtype;
rndis.nvs_chim_idx = HN_NVS_CHIM_IDX_INVALID;
rndis.nvs_chim_sz = 0;
return (hn_nvs_send_sglist(chan, gpa, gpa_cnt,
&rndis, sizeof(rndis), sndc));
}
int
hn_nvs_send_rndis_ctrl(struct vmbus_channel *chan,
struct hn_send_ctx *sndc, struct vmbus_gpa *gpa, int gpa_cnt)
{
return hn_nvs_send_rndis_sglist1(chan, HN_NVS_RNDIS_MTYPE_CTRL,
sndc, gpa, gpa_cnt);
}
static int
hn_sendpkt_rndis_sglist(struct hn_tx_ring *txr, struct hn_txdesc *txd)
{
KASSERT(txd->chim_index == HN_NVS_CHIM_IDX_INVALID &&
txd->chim_size == 0, ("invalid rndis sglist txd"));
return (hn_nvs_send_rndis_sglist1(txr->hn_chan, HN_NVS_RNDIS_MTYPE_DATA,
&txd->send_ctx, txr->hn_gpa, txr->hn_gpa_cnt));
}
static int
hn_sendpkt_rndis_chim(struct hn_tx_ring *txr, struct hn_txdesc *txd)
{
struct hn_nvs_rndis rndis;
KASSERT(txd->chim_index != HN_NVS_CHIM_IDX_INVALID &&
txd->chim_size > 0, ("invalid rndis chim txd"));
rndis.nvs_type = HN_NVS_TYPE_RNDIS;
rndis.nvs_rndis_mtype = HN_NVS_RNDIS_MTYPE_DATA;
rndis.nvs_chim_idx = txd->chim_index;
rndis.nvs_chim_sz = txd->chim_size;
return (hn_nvs_send(txr->hn_chan, VMBUS_CHANPKT_FLAG_RC,
&rndis, sizeof(rndis), &txd->send_ctx));
}
+static int
+hn_set_rxfilter(struct hn_softc *sc)
+{
+ struct ifnet *ifp = sc->hn_ifp;
+ uint32_t filter;
+ int error = 0;
+
+ HN_LOCK_ASSERT(sc);
+
+ if (ifp->if_flags & IFF_PROMISC) {
+ filter = NDIS_PACKET_TYPE_PROMISCUOUS;
+ } else {
+ filter = NDIS_PACKET_TYPE_DIRECTED;
+ if (ifp->if_flags & IFF_BROADCAST)
+ filter |= NDIS_PACKET_TYPE_BROADCAST;
+#ifdef notyet
+ /*
+ * See the comment in SIOCADDMULTI/SIOCDELMULTI.
+ */
+ /* TODO: support multicast list */
+ if ((ifp->if_flags & IFF_ALLMULTI) ||
+ !TAILQ_EMPTY(&ifp->if_multiaddrs))
+ filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
+#else
+ /* Always enable ALLMULTI */
+ filter |= NDIS_PACKET_TYPE_ALL_MULTICAST;
+#endif
+ }
+
+ if (sc->hn_rx_filter != filter) {
+ error = hn_rndis_set_rxfilter(sc, filter);
+ if (!error)
+ sc->hn_rx_filter = filter;
+ }
+ return (error);
+}
+
static int
hn_get_txswq_depth(const struct hn_tx_ring *txr)
{
KASSERT(txr->hn_txdesc_cnt > 0, ("tx ring is not setup yet"));
if (hn_tx_swq_depth < txr->hn_txdesc_cnt)
return txr->hn_txdesc_cnt;
return hn_tx_swq_depth;
}
static int
hn_rss_reconfig(struct hn_softc *sc)
{
int error;
HN_LOCK_ASSERT(sc);
if ((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0)
return (ENXIO);
/*
* Disable RSS first.
*
* NOTE:
* Direct reconfiguration by setting the UNCHG flags does
* _not_ work properly.
*/
if (bootverbose)
if_printf(sc->hn_ifp, "disable RSS\n");
error = hn_rndis_conf_rss(sc, NDIS_RSS_FLAG_DISABLE);
if (error) {
if_printf(sc->hn_ifp, "RSS disable failed\n");
return (error);
}
/*
* Reenable the RSS w/ the updated RSS key or indirect
* table.
*/
if (bootverbose)
if_printf(sc->hn_ifp, "reconfig RSS\n");
error = hn_rndis_conf_rss(sc, NDIS_RSS_FLAG_NONE);
if (error) {
if_printf(sc->hn_ifp, "RSS reconfig failed\n");
return (error);
}
return (0);
}
static void
hn_rss_ind_fixup(struct hn_softc *sc, int nchan)
{
struct ndis_rssprm_toeplitz *rss = &sc->hn_rss;
int i;
KASSERT(nchan > 1, ("invalid # of channels %d", nchan));
/*
* Check indirect table to make sure that all channels in it
* can be used.
*/
for (i = 0; i < NDIS_HASH_INDCNT; ++i) {
if (rss->rss_ind[i] >= nchan) {
if_printf(sc->hn_ifp,
"RSS indirect table %d fixup: %u -> %d\n",
i, rss->rss_ind[i], nchan - 1);
rss->rss_ind[i] = nchan - 1;
}
}
}
static int
hn_ifmedia_upd(struct ifnet *ifp __unused)
{
return EOPNOTSUPP;
}
static void
hn_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr)
{
struct hn_softc *sc = ifp->if_softc;
ifmr->ifm_status = IFM_AVALID;
ifmr->ifm_active = IFM_ETHER;
if ((sc->hn_link_flags & HN_LINK_FLAG_LINKUP) == 0) {
ifmr->ifm_active |= IFM_NONE;
return;
}
ifmr->ifm_status |= IFM_ACTIVE;
ifmr->ifm_active |= IFM_10G_T | IFM_FDX;
}
/* {F8615163-DF3E-46c5-913F-F2D2F965ED0E} */
static const struct hyperv_guid g_net_vsc_device_type = {
.hv_guid = {0x63, 0x51, 0x61, 0xF8, 0x3E, 0xDF, 0xc5, 0x46,
0x91, 0x3F, 0xF2, 0xD2, 0xF9, 0x65, 0xED, 0x0E}
};
/*
* Standard probe entry point.
*
*/
static int
netvsc_probe(device_t dev)
{
if (VMBUS_PROBE_GUID(device_get_parent(dev), dev,
&g_net_vsc_device_type) == 0) {
device_set_desc(dev, "Hyper-V Network Interface");
return BUS_PROBE_DEFAULT;
}
return ENXIO;
}
/*
* Standard attach entry point.
*
* Called when the driver is loaded. It allocates needed resources,
* and initializes the "hardware" and software.
*/
static int
netvsc_attach(device_t dev)
{
struct hn_softc *sc = device_get_softc(dev);
struct sysctl_oid_list *child;
struct sysctl_ctx_list *ctx;
uint8_t eaddr[ETHER_ADDR_LEN];
struct ifnet *ifp = NULL;
int error, ring_cnt, tx_ring_cnt;
sc->hn_dev = dev;
sc->hn_prichan = vmbus_get_channel(dev);
HN_LOCK_INIT(sc);
/*
* Setup taskqueue for transmission.
*/
if (hn_tx_taskq == NULL) {
sc->hn_tx_taskq = taskqueue_create("hn_tx", M_WAITOK,
taskqueue_thread_enqueue, &sc->hn_tx_taskq);
if (hn_bind_tx_taskq >= 0) {
int cpu = hn_bind_tx_taskq;
cpuset_t cpu_set;
if (cpu > mp_ncpus - 1)
cpu = mp_ncpus - 1;
CPU_SETOF(cpu, &cpu_set);
taskqueue_start_threads_cpuset(&sc->hn_tx_taskq, 1,
PI_NET, &cpu_set, "%s tx",
device_get_nameunit(dev));
} else {
taskqueue_start_threads(&sc->hn_tx_taskq, 1, PI_NET,
"%s tx", device_get_nameunit(dev));
}
} else {
sc->hn_tx_taskq = hn_tx_taskq;
}
/*
* Setup taskqueue for mangement tasks, e.g. link status.
*/
sc->hn_mgmt_taskq0 = taskqueue_create("hn_mgmt", M_WAITOK,
taskqueue_thread_enqueue, &sc->hn_mgmt_taskq0);
taskqueue_start_threads(&sc->hn_mgmt_taskq0, 1, PI_NET, "%s mgmt",
device_get_nameunit(dev));
TASK_INIT(&sc->hn_link_task, 0, hn_link_taskfunc, sc);
TASK_INIT(&sc->hn_netchg_init, 0, hn_netchg_init_taskfunc, sc);
TIMEOUT_TASK_INIT(sc->hn_mgmt_taskq0, &sc->hn_netchg_status, 0,
hn_netchg_status_taskfunc, sc);
/*
* Allocate ifnet and setup its name earlier, so that if_printf
* can be used by functions, which will be called after
* ether_ifattach().
*/
ifp = sc->hn_ifp = if_alloc(IFT_ETHER);
ifp->if_softc = sc;
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
/*
* Initialize ifmedia earlier so that it can be unconditionally
* destroyed, if error happened later on.
*/
ifmedia_init(&sc->hn_media, 0, hn_ifmedia_upd, hn_ifmedia_sts);
/*
* Figure out the # of RX rings (ring_cnt) and the # of TX rings
* to use (tx_ring_cnt).
*
* NOTE:
* The # of RX rings to use is same as the # of channels to use.
*/
ring_cnt = hn_chan_cnt;
if (ring_cnt <= 0) {
/* Default */
ring_cnt = mp_ncpus;
if (ring_cnt > HN_RING_CNT_DEF_MAX)
ring_cnt = HN_RING_CNT_DEF_MAX;
} else if (ring_cnt > mp_ncpus) {
ring_cnt = mp_ncpus;
}
tx_ring_cnt = hn_tx_ring_cnt;
if (tx_ring_cnt <= 0 || tx_ring_cnt > ring_cnt)
tx_ring_cnt = ring_cnt;
if (hn_use_if_start) {
/* ifnet.if_start only needs one TX ring. */
tx_ring_cnt = 1;
}
/*
* Set the leader CPU for channels.
*/
sc->hn_cpu = atomic_fetchadd_int(&hn_cpu_index, ring_cnt) % mp_ncpus;
/*
* Create enough TX/RX rings, even if only limited number of
* channels can be allocated.
*/
error = hn_create_tx_data(sc, tx_ring_cnt);
if (error)
goto failed;
error = hn_create_rx_data(sc, ring_cnt);
if (error)
goto failed;
/*
* Create transaction context for NVS and RNDIS transactions.
*/
sc->hn_xact = vmbus_xact_ctx_create(bus_get_dma_tag(dev),
HN_XACT_REQ_SIZE, HN_XACT_RESP_SIZE, 0);
if (sc->hn_xact == NULL)
goto failed;
/*
* Attach the synthetic parts, i.e. NVS and RNDIS.
*/
error = hn_synth_attach(sc, ETHERMTU);
if (error)
goto failed;
error = hn_rndis_get_eaddr(sc, eaddr);
if (error)
goto failed;
#if __FreeBSD_version >= 1100099
if (sc->hn_rx_ring_inuse > 1) {
/*
* Reduce TCP segment aggregation limit for multiple
* RX rings to increase ACK timeliness.
*/
hn_set_lro_lenlim(sc, HN_LRO_LENLIM_MULTIRX_DEF);
}
#endif
/*
* Fixup TX stuffs after synthetic parts are attached.
*/
hn_fixup_tx_data(sc);
ctx = device_get_sysctl_ctx(dev);
child = SYSCTL_CHILDREN(device_get_sysctl_tree(dev));
SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "nvs_version", CTLFLAG_RD,
&sc->hn_nvs_ver, 0, "NVS version");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "ndis_version",
CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
hn_ndis_version_sysctl, "A", "NDIS version");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "caps",
CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
hn_caps_sysctl, "A", "capabilities");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "hwassist",
CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
hn_hwassist_sysctl, "A", "hwassist");
+ SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rxfilter",
+ CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE, sc, 0,
+ hn_rxfilter_sysctl, "A", "rxfilter");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rss_key",
CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
hn_rss_key_sysctl, "IU", "RSS key");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "rss_ind",
CTLTYPE_OPAQUE | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
hn_rss_ind_sysctl, "IU", "RSS indirect table");
/*
* Setup the ifmedia, which has been initialized earlier.
*/
ifmedia_add(&sc->hn_media, IFM_ETHER | IFM_AUTO, 0, NULL);
ifmedia_set(&sc->hn_media, IFM_ETHER | IFM_AUTO);
/* XXX ifmedia_set really should do this for us */
sc->hn_media.ifm_media = sc->hn_media.ifm_cur->ifm_media;
/*
* Setup the ifnet for this interface.
*/
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_ioctl = hn_ioctl;
ifp->if_init = hn_init;
if (hn_use_if_start) {
int qdepth = hn_get_txswq_depth(&sc->hn_tx_ring[0]);
ifp->if_start = hn_start;
IFQ_SET_MAXLEN(&ifp->if_snd, qdepth);
ifp->if_snd.ifq_drv_maxlen = qdepth - 1;
IFQ_SET_READY(&ifp->if_snd);
} else {
ifp->if_transmit = hn_transmit;
ifp->if_qflush = hn_xmit_qflush;
}
ifp->if_capabilities |= IFCAP_RXCSUM | IFCAP_LRO;
#ifdef foo
/* We can't diff IPv6 packets from IPv4 packets on RX path. */
ifp->if_capabilities |= IFCAP_RXCSUM_IPV6;
#endif
if (sc->hn_caps & HN_CAP_VLAN) {
/* XXX not sure about VLAN_MTU. */
ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_MTU;
}
ifp->if_hwassist = sc->hn_tx_ring[0].hn_csum_assist;
if (ifp->if_hwassist & HN_CSUM_IP_MASK)
ifp->if_capabilities |= IFCAP_TXCSUM;
if (ifp->if_hwassist & HN_CSUM_IP6_MASK)
ifp->if_capabilities |= IFCAP_TXCSUM_IPV6;
if (sc->hn_caps & HN_CAP_TSO4) {
ifp->if_capabilities |= IFCAP_TSO4;
ifp->if_hwassist |= CSUM_IP_TSO;
}
if (sc->hn_caps & HN_CAP_TSO6) {
ifp->if_capabilities |= IFCAP_TSO6;
ifp->if_hwassist |= CSUM_IP6_TSO;
}
/* Enable all available capabilities by default. */
ifp->if_capenable = ifp->if_capabilities;
if (ifp->if_capabilities & (IFCAP_TSO6 | IFCAP_TSO4)) {
hn_set_tso_maxsize(sc, hn_tso_maxlen, ETHERMTU);
ifp->if_hw_tsomaxsegcount = HN_TX_DATA_SEGCNT_MAX;
ifp->if_hw_tsomaxsegsize = PAGE_SIZE;
}
ether_ifattach(ifp, eaddr);
if ((ifp->if_capabilities & (IFCAP_TSO6 | IFCAP_TSO4)) && bootverbose) {
if_printf(ifp, "TSO segcnt %u segsz %u\n",
ifp->if_hw_tsomaxsegcount, ifp->if_hw_tsomaxsegsize);
}
/* Inform the upper layer about the long frame support. */
ifp->if_hdrlen = sizeof(struct ether_vlan_header);
/*
* Kick off link status check.
*/
sc->hn_mgmt_taskq = sc->hn_mgmt_taskq0;
hn_link_status_update(sc);
return (0);
failed:
if (sc->hn_flags & HN_FLAG_SYNTH_ATTACHED)
hn_synth_detach(sc);
netvsc_detach(dev);
return (error);
}
static int
netvsc_detach(device_t dev)
{
struct hn_softc *sc = device_get_softc(dev);
struct ifnet *ifp = sc->hn_ifp;
if (device_is_attached(dev)) {
HN_LOCK(sc);
if (sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) {
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
hn_stop(sc);
/*
* NOTE:
* hn_stop() only suspends data, so managment
* stuffs have to be suspended manually here.
*/
hn_suspend_mgmt(sc);
hn_synth_detach(sc);
}
HN_UNLOCK(sc);
ether_ifdetach(ifp);
}
ifmedia_removeall(&sc->hn_media);
hn_destroy_rx_data(sc);
hn_destroy_tx_data(sc);
if (sc->hn_tx_taskq != hn_tx_taskq)
taskqueue_free(sc->hn_tx_taskq);
taskqueue_free(sc->hn_mgmt_taskq0);
if (sc->hn_xact != NULL)
vmbus_xact_ctx_destroy(sc->hn_xact);
if_free(ifp);
HN_LOCK_DESTROY(sc);
return (0);
}
/*
* Standard shutdown entry point
*/
static int
netvsc_shutdown(device_t dev)
{
return (0);
}
static void
hn_link_status(struct hn_softc *sc)
{
uint32_t link_status;
int error;
error = hn_rndis_get_linkstatus(sc, &link_status);
if (error) {
/* XXX what to do? */
return;
}
if (link_status == NDIS_MEDIA_STATE_CONNECTED)
sc->hn_link_flags |= HN_LINK_FLAG_LINKUP;
else
sc->hn_link_flags &= ~HN_LINK_FLAG_LINKUP;
if_link_state_change(sc->hn_ifp,
(sc->hn_link_flags & HN_LINK_FLAG_LINKUP) ?
LINK_STATE_UP : LINK_STATE_DOWN);
}
static void
hn_link_taskfunc(void *xsc, int pending __unused)
{
struct hn_softc *sc = xsc;
if (sc->hn_link_flags & HN_LINK_FLAG_NETCHG)
return;
hn_link_status(sc);
}
static void
hn_netchg_init_taskfunc(void *xsc, int pending __unused)
{
struct hn_softc *sc = xsc;
/* Prevent any link status checks from running. */
sc->hn_link_flags |= HN_LINK_FLAG_NETCHG;
/*
* Fake up a [link down --> link up] state change; 5 seconds
* delay is used, which closely simulates miibus reaction
* upon link down event.
*/
sc->hn_link_flags &= ~HN_LINK_FLAG_LINKUP;
if_link_state_change(sc->hn_ifp, LINK_STATE_DOWN);
taskqueue_enqueue_timeout(sc->hn_mgmt_taskq0,
&sc->hn_netchg_status, 5 * hz);
}
static void
hn_netchg_status_taskfunc(void *xsc, int pending __unused)
{
struct hn_softc *sc = xsc;
/* Re-allow link status checks. */
sc->hn_link_flags &= ~HN_LINK_FLAG_NETCHG;
hn_link_status(sc);
}
void
hn_link_status_update(struct hn_softc *sc)
{
if (sc->hn_mgmt_taskq != NULL)
taskqueue_enqueue(sc->hn_mgmt_taskq, &sc->hn_link_task);
}
void
hn_network_change(struct hn_softc *sc)
{
if (sc->hn_mgmt_taskq != NULL)
taskqueue_enqueue(sc->hn_mgmt_taskq, &sc->hn_netchg_init);
}
static __inline int
hn_txdesc_dmamap_load(struct hn_tx_ring *txr, struct hn_txdesc *txd,
struct mbuf **m_head, bus_dma_segment_t *segs, int *nsegs)
{
struct mbuf *m = *m_head;
int error;
KASSERT(txd->chim_index == HN_NVS_CHIM_IDX_INVALID, ("txd uses chim"));
error = bus_dmamap_load_mbuf_sg(txr->hn_tx_data_dtag, txd->data_dmap,
m, segs, nsegs, BUS_DMA_NOWAIT);
if (error == EFBIG) {
struct mbuf *m_new;
m_new = m_collapse(m, M_NOWAIT, HN_TX_DATA_SEGCNT_MAX);
if (m_new == NULL)
return ENOBUFS;
else
*m_head = m = m_new;
txr->hn_tx_collapsed++;
error = bus_dmamap_load_mbuf_sg(txr->hn_tx_data_dtag,
txd->data_dmap, m, segs, nsegs, BUS_DMA_NOWAIT);
}
if (!error) {
bus_dmamap_sync(txr->hn_tx_data_dtag, txd->data_dmap,
BUS_DMASYNC_PREWRITE);
txd->flags |= HN_TXD_FLAG_DMAMAP;
}
return error;
}
static __inline int
hn_txdesc_put(struct hn_tx_ring *txr, struct hn_txdesc *txd)
{
KASSERT((txd->flags & HN_TXD_FLAG_ONLIST) == 0,
("put an onlist txd %#x", txd->flags));
KASSERT(txd->refs > 0, ("invalid txd refs %d", txd->refs));
if (atomic_fetchadd_int(&txd->refs, -1) != 1)
return 0;
if (txd->chim_index != HN_NVS_CHIM_IDX_INVALID) {
KASSERT((txd->flags & HN_TXD_FLAG_DMAMAP) == 0,
("chim txd uses dmamap"));
hn_chim_free(txr->hn_sc, txd->chim_index);
txd->chim_index = HN_NVS_CHIM_IDX_INVALID;
} else if (txd->flags & HN_TXD_FLAG_DMAMAP) {
bus_dmamap_sync(txr->hn_tx_data_dtag,
txd->data_dmap, BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(txr->hn_tx_data_dtag,
txd->data_dmap);
txd->flags &= ~HN_TXD_FLAG_DMAMAP;
}
if (txd->m != NULL) {
m_freem(txd->m);
txd->m = NULL;
}
txd->flags |= HN_TXD_FLAG_ONLIST;
#ifndef HN_USE_TXDESC_BUFRING
mtx_lock_spin(&txr->hn_txlist_spin);
KASSERT(txr->hn_txdesc_avail >= 0 &&
txr->hn_txdesc_avail < txr->hn_txdesc_cnt,
("txdesc_put: invalid txd avail %d", txr->hn_txdesc_avail));
txr->hn_txdesc_avail++;
SLIST_INSERT_HEAD(&txr->hn_txlist, txd, link);
mtx_unlock_spin(&txr->hn_txlist_spin);
#else
atomic_add_int(&txr->hn_txdesc_avail, 1);
buf_ring_enqueue(txr->hn_txdesc_br, txd);
#endif
return 1;
}
static __inline struct hn_txdesc *
hn_txdesc_get(struct hn_tx_ring *txr)
{
struct hn_txdesc *txd;
#ifndef HN_USE_TXDESC_BUFRING
mtx_lock_spin(&txr->hn_txlist_spin);
txd = SLIST_FIRST(&txr->hn_txlist);
if (txd != NULL) {
KASSERT(txr->hn_txdesc_avail > 0,
("txdesc_get: invalid txd avail %d", txr->hn_txdesc_avail));
txr->hn_txdesc_avail--;
SLIST_REMOVE_HEAD(&txr->hn_txlist, link);
}
mtx_unlock_spin(&txr->hn_txlist_spin);
#else
txd = buf_ring_dequeue_sc(txr->hn_txdesc_br);
#endif
if (txd != NULL) {
#ifdef HN_USE_TXDESC_BUFRING
atomic_subtract_int(&txr->hn_txdesc_avail, 1);
#endif
KASSERT(txd->m == NULL && txd->refs == 0 &&
txd->chim_index == HN_NVS_CHIM_IDX_INVALID &&
(txd->flags & HN_TXD_FLAG_ONLIST) &&
(txd->flags & HN_TXD_FLAG_DMAMAP) == 0, ("invalid txd"));
txd->flags &= ~HN_TXD_FLAG_ONLIST;
txd->refs = 1;
}
return txd;
}
static __inline void
hn_txdesc_hold(struct hn_txdesc *txd)
{
/* 0->1 transition will never work */
KASSERT(txd->refs > 0, ("invalid refs %d", txd->refs));
atomic_add_int(&txd->refs, 1);
}
static bool
hn_tx_ring_pending(struct hn_tx_ring *txr)
{
bool pending = false;
#ifndef HN_USE_TXDESC_BUFRING
mtx_lock_spin(&txr->hn_txlist_spin);
if (txr->hn_txdesc_avail != txr->hn_txdesc_cnt)
pending = true;
mtx_unlock_spin(&txr->hn_txlist_spin);
#else
if (!buf_ring_full(txr->hn_txdesc_br))
pending = true;
#endif
return (pending);
}
static __inline void
hn_txeof(struct hn_tx_ring *txr)
{
txr->hn_has_txeof = 0;
txr->hn_txeof(txr);
}
static void
hn_tx_done(struct hn_send_ctx *sndc, struct hn_softc *sc,
struct vmbus_channel *chan, const void *data __unused, int dlen __unused)
{
struct hn_txdesc *txd = sndc->hn_cbarg;
struct hn_tx_ring *txr;
txr = txd->txr;
KASSERT(txr->hn_chan == chan,
("channel mismatch, on chan%u, should be chan%u",
vmbus_chan_subidx(chan), vmbus_chan_subidx(txr->hn_chan)));
txr->hn_has_txeof = 1;
hn_txdesc_put(txr, txd);
++txr->hn_txdone_cnt;
if (txr->hn_txdone_cnt >= HN_EARLY_TXEOF_THRESH) {
txr->hn_txdone_cnt = 0;
if (txr->hn_oactive)
hn_txeof(txr);
}
}
void
hn_chan_rollup(struct hn_rx_ring *rxr, struct hn_tx_ring *txr)
{
#if defined(INET) || defined(INET6)
tcp_lro_flush_all(&rxr->hn_lro);
#endif
/*
* NOTE:
* 'txr' could be NULL, if multiple channels and
* ifnet.if_start method are enabled.
*/
if (txr == NULL || !txr->hn_has_txeof)
return;
txr->hn_txdone_cnt = 0;
hn_txeof(txr);
}
static __inline uint32_t
hn_rndis_pktmsg_offset(uint32_t ofs)
{
KASSERT(ofs >= sizeof(struct rndis_packet_msg),
("invalid RNDIS packet msg offset %u", ofs));
return (ofs - __offsetof(struct rndis_packet_msg, rm_dataoffset));
}
/*
* NOTE:
* If this function fails, then both txd and m_head0 will be freed.
*/
static int
hn_encap(struct hn_tx_ring *txr, struct hn_txdesc *txd, struct mbuf **m_head0)
{
bus_dma_segment_t segs[HN_TX_DATA_SEGCNT_MAX];
int error, nsegs, i;
struct mbuf *m_head = *m_head0;
struct rndis_packet_msg *pkt;
uint32_t *pi_data;
int pktlen;
/*
* extension points to the area reserved for the
* rndis_filter_packet, which is placed just after
* the netvsc_packet (and rppi struct, if present;
* length is updated later).
*/
pkt = txd->rndis_pkt;
pkt->rm_type = REMOTE_NDIS_PACKET_MSG;
pkt->rm_len = sizeof(*pkt) + m_head->m_pkthdr.len;
pkt->rm_dataoffset = sizeof(*pkt);
pkt->rm_datalen = m_head->m_pkthdr.len;
pkt->rm_pktinfooffset = sizeof(*pkt);
pkt->rm_pktinfolen = 0;
if (txr->hn_tx_flags & HN_TX_FLAG_HASHVAL) {
/*
* Set the hash value for this packet, so that the host could
* dispatch the TX done event for this packet back to this TX
* ring's channel.
*/
pi_data = hn_rndis_pktinfo_append(pkt, HN_RNDIS_PKT_LEN,
HN_NDIS_HASH_VALUE_SIZE, HN_NDIS_PKTINFO_TYPE_HASHVAL);
*pi_data = txr->hn_tx_idx;
}
if (m_head->m_flags & M_VLANTAG) {
pi_data = hn_rndis_pktinfo_append(pkt, HN_RNDIS_PKT_LEN,
NDIS_VLAN_INFO_SIZE, NDIS_PKTINFO_TYPE_VLAN);
*pi_data = NDIS_VLAN_INFO_MAKE(
EVL_VLANOFTAG(m_head->m_pkthdr.ether_vtag),
EVL_PRIOFTAG(m_head->m_pkthdr.ether_vtag),
EVL_CFIOFTAG(m_head->m_pkthdr.ether_vtag));
}
if (m_head->m_pkthdr.csum_flags & CSUM_TSO) {
#if defined(INET6) || defined(INET)
struct ether_vlan_header *eh;
int ether_len;
/*
* XXX need m_pullup and use mtodo
*/
eh = mtod(m_head, struct ether_vlan_header*);
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN))
ether_len = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN;
else
ether_len = ETHER_HDR_LEN;
pi_data = hn_rndis_pktinfo_append(pkt, HN_RNDIS_PKT_LEN,
NDIS_LSO2_INFO_SIZE, NDIS_PKTINFO_TYPE_LSO);
#ifdef INET
if (m_head->m_pkthdr.csum_flags & CSUM_IP_TSO) {
struct ip *ip =
(struct ip *)(m_head->m_data + ether_len);
unsigned long iph_len = ip->ip_hl << 2;
struct tcphdr *th =
(struct tcphdr *)((caddr_t)ip + iph_len);
ip->ip_len = 0;
ip->ip_sum = 0;
th->th_sum = in_pseudo(ip->ip_src.s_addr,
ip->ip_dst.s_addr, htons(IPPROTO_TCP));
*pi_data = NDIS_LSO2_INFO_MAKEIPV4(0,
m_head->m_pkthdr.tso_segsz);
}
#endif
#if defined(INET6) && defined(INET)
else
#endif
#ifdef INET6
{
struct ip6_hdr *ip6 = (struct ip6_hdr *)
(m_head->m_data + ether_len);
struct tcphdr *th = (struct tcphdr *)(ip6 + 1);
ip6->ip6_plen = 0;
th->th_sum = in6_cksum_pseudo(ip6, 0, IPPROTO_TCP, 0);
*pi_data = NDIS_LSO2_INFO_MAKEIPV6(0,
m_head->m_pkthdr.tso_segsz);
}
#endif
#endif /* INET6 || INET */
} else if (m_head->m_pkthdr.csum_flags & txr->hn_csum_assist) {
pi_data = hn_rndis_pktinfo_append(pkt, HN_RNDIS_PKT_LEN,
NDIS_TXCSUM_INFO_SIZE, NDIS_PKTINFO_TYPE_CSUM);
if (m_head->m_pkthdr.csum_flags &
(CSUM_IP6_TCP | CSUM_IP6_UDP)) {
*pi_data = NDIS_TXCSUM_INFO_IPV6;
} else {
*pi_data = NDIS_TXCSUM_INFO_IPV4;
if (m_head->m_pkthdr.csum_flags & CSUM_IP)
*pi_data |= NDIS_TXCSUM_INFO_IPCS;
}
if (m_head->m_pkthdr.csum_flags & (CSUM_IP_TCP | CSUM_IP6_TCP))
*pi_data |= NDIS_TXCSUM_INFO_TCPCS;
else if (m_head->m_pkthdr.csum_flags &
(CSUM_IP_UDP | CSUM_IP6_UDP))
*pi_data |= NDIS_TXCSUM_INFO_UDPCS;
}
pktlen = pkt->rm_pktinfooffset + pkt->rm_pktinfolen;
/* Convert RNDIS packet message offsets */
pkt->rm_dataoffset = hn_rndis_pktmsg_offset(pkt->rm_dataoffset);
pkt->rm_pktinfooffset = hn_rndis_pktmsg_offset(pkt->rm_pktinfooffset);
/*
* Chimney send, if the packet could fit into one chimney buffer.
*/
if (pkt->rm_len < txr->hn_chim_size) {
txr->hn_tx_chimney_tried++;
txd->chim_index = hn_chim_alloc(txr->hn_sc);
if (txd->chim_index != HN_NVS_CHIM_IDX_INVALID) {
uint8_t *dest = txr->hn_sc->hn_chim +
(txd->chim_index * txr->hn_sc->hn_chim_szmax);
memcpy(dest, pkt, pktlen);
dest += pktlen;
m_copydata(m_head, 0, m_head->m_pkthdr.len, dest);
txd->chim_size = pkt->rm_len;
txr->hn_gpa_cnt = 0;
txr->hn_tx_chimney++;
txr->hn_sendpkt = hn_sendpkt_rndis_chim;
goto done;
}
}
error = hn_txdesc_dmamap_load(txr, txd, &m_head, segs, &nsegs);
if (error) {
int freed;
/*
* This mbuf is not linked w/ the txd yet, so free it now.
*/
m_freem(m_head);
*m_head0 = NULL;
freed = hn_txdesc_put(txr, txd);
KASSERT(freed != 0,
("fail to free txd upon txdma error"));
txr->hn_txdma_failed++;
if_inc_counter(txr->hn_sc->hn_ifp, IFCOUNTER_OERRORS, 1);
return error;
}
*m_head0 = m_head;
/* +1 RNDIS packet message */
txr->hn_gpa_cnt = nsegs + 1;
/* send packet with page buffer */
txr->hn_gpa[0].gpa_page = atop(txd->rndis_pkt_paddr);
txr->hn_gpa[0].gpa_ofs = txd->rndis_pkt_paddr & PAGE_MASK;
txr->hn_gpa[0].gpa_len = pktlen;
/*
* Fill the page buffers with mbuf info after the page
* buffer for RNDIS packet message.
*/
for (i = 0; i < nsegs; ++i) {
struct vmbus_gpa *gpa = &txr->hn_gpa[i + 1];
gpa->gpa_page = atop(segs[i].ds_addr);
gpa->gpa_ofs = segs[i].ds_addr & PAGE_MASK;
gpa->gpa_len = segs[i].ds_len;
}
txd->chim_index = HN_NVS_CHIM_IDX_INVALID;
txd->chim_size = 0;
txr->hn_sendpkt = hn_sendpkt_rndis_sglist;
done:
txd->m = m_head;
/* Set the completion routine */
hn_send_ctx_init(&txd->send_ctx, hn_tx_done, txd);
return 0;
}
/*
* NOTE:
* If this function fails, then txd will be freed, but the mbuf
* associated w/ the txd will _not_ be freed.
*/
static int
hn_send_pkt(struct ifnet *ifp, struct hn_tx_ring *txr, struct hn_txdesc *txd)
{
int error, send_failed = 0;
again:
/*
* Make sure that txd is not freed before ETHER_BPF_MTAP.
*/
hn_txdesc_hold(txd);
error = txr->hn_sendpkt(txr, txd);
if (!error) {
ETHER_BPF_MTAP(ifp, txd->m);
if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);
if (!hn_use_if_start) {
if_inc_counter(ifp, IFCOUNTER_OBYTES,
txd->m->m_pkthdr.len);
if (txd->m->m_flags & M_MCAST)
if_inc_counter(ifp, IFCOUNTER_OMCASTS, 1);
}
txr->hn_pkts++;
}
hn_txdesc_put(txr, txd);
if (__predict_false(error)) {
int freed;
/*
* This should "really rarely" happen.
*
* XXX Too many RX to be acked or too many sideband
* commands to run? Ask netvsc_channel_rollup()
* to kick start later.
*/
txr->hn_has_txeof = 1;
if (!send_failed) {
txr->hn_send_failed++;
send_failed = 1;
/*
* Try sending again after set hn_has_txeof;
* in case that we missed the last
* netvsc_channel_rollup().
*/
goto again;
}
if_printf(ifp, "send failed\n");
/*
* Caller will perform further processing on the
* associated mbuf, so don't free it in hn_txdesc_put();
* only unload it from the DMA map in hn_txdesc_put(),
* if it was loaded.
*/
txd->m = NULL;
freed = hn_txdesc_put(txr, txd);
KASSERT(freed != 0,
("fail to free txd upon send error"));
txr->hn_send_failed++;
}
return error;
}
/*
* Start a transmit of one or more packets
*/
static int
hn_start_locked(struct hn_tx_ring *txr, int len)
{
struct hn_softc *sc = txr->hn_sc;
struct ifnet *ifp = sc->hn_ifp;
KASSERT(hn_use_if_start,
("hn_start_locked is called, when if_start is disabled"));
KASSERT(txr == &sc->hn_tx_ring[0], ("not the first TX ring"));
mtx_assert(&txr->hn_tx_lock, MA_OWNED);
if (__predict_false(txr->hn_suspended))
return 0;
if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) !=
IFF_DRV_RUNNING)
return 0;
while (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) {
struct hn_txdesc *txd;
struct mbuf *m_head;
int error;
IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head);
if (m_head == NULL)
break;
if (len > 0 && m_head->m_pkthdr.len > len) {
/*
* This sending could be time consuming; let callers
* dispatch this packet sending (and sending of any
* following up packets) to tx taskqueue.
*/
IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
return 1;
}
txd = hn_txdesc_get(txr);
if (txd == NULL) {
txr->hn_no_txdescs++;
IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
atomic_set_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE);
break;
}
error = hn_encap(txr, txd, &m_head);
if (error) {
/* Both txd and m_head are freed */
continue;
}
error = hn_send_pkt(ifp, txr, txd);
if (__predict_false(error)) {
/* txd is freed, but m_head is not */
IFQ_DRV_PREPEND(&ifp->if_snd, m_head);
atomic_set_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE);
break;
}
}
return 0;
}
/*
* Append the specified data to the indicated mbuf chain,
* Extend the mbuf chain if the new data does not fit in
* existing space.
*
* This is a minor rewrite of m_append() from sys/kern/uipc_mbuf.c.
* There should be an equivalent in the kernel mbuf code,
* but there does not appear to be one yet.
*
* Differs from m_append() in that additional mbufs are
* allocated with cluster size MJUMPAGESIZE, and filled
* accordingly.
*
* Return 1 if able to complete the job; otherwise 0.
*/
static int
hv_m_append(struct mbuf *m0, int len, c_caddr_t cp)
{
struct mbuf *m, *n;
int remainder, space;
for (m = m0; m->m_next != NULL; m = m->m_next)
;
remainder = len;
space = M_TRAILINGSPACE(m);
if (space > 0) {
/*
* Copy into available space.
*/
if (space > remainder)
space = remainder;
bcopy(cp, mtod(m, caddr_t) + m->m_len, space);
m->m_len += space;
cp += space;
remainder -= space;
}
while (remainder > 0) {
/*
* Allocate a new mbuf; could check space
* and allocate a cluster instead.
*/
n = m_getjcl(M_NOWAIT, m->m_type, 0, MJUMPAGESIZE);
if (n == NULL)
break;
n->m_len = min(MJUMPAGESIZE, remainder);
bcopy(cp, mtod(n, caddr_t), n->m_len);
cp += n->m_len;
remainder -= n->m_len;
m->m_next = n;
m = n;
}
if (m0->m_flags & M_PKTHDR)
m0->m_pkthdr.len += len - remainder;
return (remainder == 0);
}
#if defined(INET) || defined(INET6)
static __inline int
hn_lro_rx(struct lro_ctrl *lc, struct mbuf *m)
{
#if __FreeBSD_version >= 1100095
if (hn_lro_mbufq_depth) {
tcp_lro_queue_mbuf(lc, m);
return 0;
}
#endif
return tcp_lro_rx(lc, m, 0);
}
#endif
/*
* Called when we receive a data packet from the "wire" on the
* specified device
*
* Note: This is no longer used as a callback
*/
int
hn_rxpkt(struct hn_rx_ring *rxr, const void *data, int dlen,
const struct hn_recvinfo *info)
{
struct ifnet *ifp = rxr->hn_ifp;
struct mbuf *m_new;
int size, do_lro = 0, do_csum = 1;
int hash_type;
if (!(ifp->if_drv_flags & IFF_DRV_RUNNING))
return (0);
/*
* Bail out if packet contains more data than configured MTU.
*/
if (dlen > (ifp->if_mtu + ETHER_HDR_LEN)) {
return (0);
} else if (dlen <= MHLEN) {
m_new = m_gethdr(M_NOWAIT, MT_DATA);
if (m_new == NULL) {
if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
return (0);
}
memcpy(mtod(m_new, void *), data, dlen);
m_new->m_pkthdr.len = m_new->m_len = dlen;
rxr->hn_small_pkts++;
} else {
/*
* Get an mbuf with a cluster. For packets 2K or less,
* get a standard 2K cluster. For anything larger, get a
* 4K cluster. Any buffers larger than 4K can cause problems
* if looped around to the Hyper-V TX channel, so avoid them.
*/
size = MCLBYTES;
if (dlen > MCLBYTES) {
/* 4096 */
size = MJUMPAGESIZE;
}
m_new = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, size);
if (m_new == NULL) {
if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1);
return (0);
}
hv_m_append(m_new, dlen, data);
}
m_new->m_pkthdr.rcvif = ifp;
if (__predict_false((ifp->if_capenable & IFCAP_RXCSUM) == 0))
do_csum = 0;
/* receive side checksum offload */
if (info->csum_info != HN_NDIS_RXCSUM_INFO_INVALID) {
/* IP csum offload */
if ((info->csum_info & NDIS_RXCSUM_INFO_IPCS_OK) && do_csum) {
m_new->m_pkthdr.csum_flags |=
(CSUM_IP_CHECKED | CSUM_IP_VALID);
rxr->hn_csum_ip++;
}
/* TCP/UDP csum offload */
if ((info->csum_info & (NDIS_RXCSUM_INFO_UDPCS_OK |
NDIS_RXCSUM_INFO_TCPCS_OK)) && do_csum) {
m_new->m_pkthdr.csum_flags |=
(CSUM_DATA_VALID | CSUM_PSEUDO_HDR);
m_new->m_pkthdr.csum_data = 0xffff;
if (info->csum_info & NDIS_RXCSUM_INFO_TCPCS_OK)
rxr->hn_csum_tcp++;
else
rxr->hn_csum_udp++;
}
if ((info->csum_info &
(NDIS_RXCSUM_INFO_TCPCS_OK | NDIS_RXCSUM_INFO_IPCS_OK)) ==
(NDIS_RXCSUM_INFO_TCPCS_OK | NDIS_RXCSUM_INFO_IPCS_OK))
do_lro = 1;
} else {
const struct ether_header *eh;
uint16_t etype;
int hoff;
hoff = sizeof(*eh);
if (m_new->m_len < hoff)
goto skip;
eh = mtod(m_new, struct ether_header *);
etype = ntohs(eh->ether_type);
if (etype == ETHERTYPE_VLAN) {
const struct ether_vlan_header *evl;
hoff = sizeof(*evl);
if (m_new->m_len < hoff)
goto skip;
evl = mtod(m_new, struct ether_vlan_header *);
etype = ntohs(evl->evl_proto);
}
if (etype == ETHERTYPE_IP) {
int pr;
pr = hn_check_iplen(m_new, hoff);
if (pr == IPPROTO_TCP) {
if (do_csum &&
(rxr->hn_trust_hcsum &
HN_TRUST_HCSUM_TCP)) {
rxr->hn_csum_trusted++;
m_new->m_pkthdr.csum_flags |=
(CSUM_IP_CHECKED | CSUM_IP_VALID |
CSUM_DATA_VALID | CSUM_PSEUDO_HDR);
m_new->m_pkthdr.csum_data = 0xffff;
}
do_lro = 1;
} else if (pr == IPPROTO_UDP) {
if (do_csum &&
(rxr->hn_trust_hcsum &
HN_TRUST_HCSUM_UDP)) {
rxr->hn_csum_trusted++;
m_new->m_pkthdr.csum_flags |=
(CSUM_IP_CHECKED | CSUM_IP_VALID |
CSUM_DATA_VALID | CSUM_PSEUDO_HDR);
m_new->m_pkthdr.csum_data = 0xffff;
}
} else if (pr != IPPROTO_DONE && do_csum &&
(rxr->hn_trust_hcsum & HN_TRUST_HCSUM_IP)) {
rxr->hn_csum_trusted++;
m_new->m_pkthdr.csum_flags |=
(CSUM_IP_CHECKED | CSUM_IP_VALID);
}
}
}
skip:
if (info->vlan_info != HN_NDIS_VLAN_INFO_INVALID) {
m_new->m_pkthdr.ether_vtag = EVL_MAKETAG(
NDIS_VLAN_INFO_ID(info->vlan_info),
NDIS_VLAN_INFO_PRI(info->vlan_info),
NDIS_VLAN_INFO_CFI(info->vlan_info));
m_new->m_flags |= M_VLANTAG;
}
if (info->hash_info != HN_NDIS_HASH_INFO_INVALID) {
rxr->hn_rss_pkts++;
m_new->m_pkthdr.flowid = info->hash_value;
hash_type = M_HASHTYPE_OPAQUE_HASH;
if ((info->hash_info & NDIS_HASH_FUNCTION_MASK) ==
NDIS_HASH_FUNCTION_TOEPLITZ) {
uint32_t type = (info->hash_info & NDIS_HASH_TYPE_MASK);
switch (type) {
case NDIS_HASH_IPV4:
hash_type = M_HASHTYPE_RSS_IPV4;
break;
case NDIS_HASH_TCP_IPV4:
hash_type = M_HASHTYPE_RSS_TCP_IPV4;
break;
case NDIS_HASH_IPV6:
hash_type = M_HASHTYPE_RSS_IPV6;
break;
case NDIS_HASH_IPV6_EX:
hash_type = M_HASHTYPE_RSS_IPV6_EX;
break;
case NDIS_HASH_TCP_IPV6:
hash_type = M_HASHTYPE_RSS_TCP_IPV6;
break;
case NDIS_HASH_TCP_IPV6_EX:
hash_type = M_HASHTYPE_RSS_TCP_IPV6_EX;
break;
}
}
} else {
m_new->m_pkthdr.flowid = rxr->hn_rx_idx;
hash_type = M_HASHTYPE_OPAQUE;
}
M_HASHTYPE_SET(m_new, hash_type);
/*
* Note: Moved RX completion back to hv_nv_on_receive() so all
* messages (not just data messages) will trigger a response.
*/
if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
rxr->hn_pkts++;
if ((ifp->if_capenable & IFCAP_LRO) && do_lro) {
#if defined(INET) || defined(INET6)
struct lro_ctrl *lro = &rxr->hn_lro;
if (lro->lro_cnt) {
rxr->hn_lro_tried++;
if (hn_lro_rx(lro, m_new) == 0) {
/* DONE! */
return 0;
}
}
#endif
}
/* We're not holding the lock here, so don't release it */
(*ifp->if_input)(ifp, m_new);
return (0);
}
static int
hn_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
{
struct hn_softc *sc = ifp->if_softc;
struct ifreq *ifr = (struct ifreq *)data;
int mask, error = 0;
switch (cmd) {
case SIOCSIFMTU:
if (ifr->ifr_mtu > NETVSC_MAX_CONFIGURABLE_MTU) {
error = EINVAL;
break;
}
HN_LOCK(sc);
if ((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0) {
HN_UNLOCK(sc);
break;
}
if ((sc->hn_caps & HN_CAP_MTU) == 0) {
/* Can't change MTU */
HN_UNLOCK(sc);
error = EOPNOTSUPP;
break;
}
if (ifp->if_mtu == ifr->ifr_mtu) {
HN_UNLOCK(sc);
break;
}
/*
* Suspend this interface before the synthetic parts
* are ripped.
*/
hn_suspend(sc);
/*
* Detach the synthetics parts, i.e. NVS and RNDIS.
*/
hn_synth_detach(sc);
/*
* Reattach the synthetic parts, i.e. NVS and RNDIS,
* with the new MTU setting.
*/
error = hn_synth_attach(sc, ifr->ifr_mtu);
if (error) {
HN_UNLOCK(sc);
break;
}
/*
* Commit the requested MTU, after the synthetic parts
* have been successfully attached.
*/
ifp->if_mtu = ifr->ifr_mtu;
/*
* Make sure that various parameters based on MTU are
* still valid, after the MTU change.
*/
if (sc->hn_tx_ring[0].hn_chim_size > sc->hn_chim_szmax)
hn_set_chim_size(sc, sc->hn_chim_szmax);
hn_set_tso_maxsize(sc, hn_tso_maxlen, ifp->if_mtu);
#if __FreeBSD_version >= 1100099
if (sc->hn_rx_ring[0].hn_lro.lro_length_lim <
HN_LRO_LENLIM_MIN(ifp))
hn_set_lro_lenlim(sc, HN_LRO_LENLIM_MIN(ifp));
#endif
/*
* All done! Resume the interface now.
*/
hn_resume(sc);
HN_UNLOCK(sc);
break;
case SIOCSIFFLAGS:
HN_LOCK(sc);
if ((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0) {
HN_UNLOCK(sc);
break;
}
if (ifp->if_flags & IFF_UP) {
- /*
- * If only the state of the PROMISC flag changed,
- * then just use the 'set promisc mode' command
- * instead of reinitializing the entire NIC. Doing
- * a full re-init means reloading the firmware and
- * waiting for it to start up, which may take a
- * second or two.
- */
-#ifdef notyet
- /* Fixme: Promiscuous mode? */
- if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
- ifp->if_flags & IFF_PROMISC &&
- !(sc->hn_if_flags & IFF_PROMISC)) {
- /* do something here for Hyper-V */
- } else if (ifp->if_drv_flags & IFF_DRV_RUNNING &&
- !(ifp->if_flags & IFF_PROMISC) &&
- sc->hn_if_flags & IFF_PROMISC) {
- /* do something here for Hyper-V */
- } else
-#endif
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+ hn_set_rxfilter(sc);
+ else
hn_init_locked(sc);
} else {
- if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING)
hn_stop(sc);
- }
}
sc->hn_if_flags = ifp->if_flags;
HN_UNLOCK(sc);
break;
case SIOCSIFCAP:
HN_LOCK(sc);
mask = ifr->ifr_reqcap ^ ifp->if_capenable;
if (mask & IFCAP_TXCSUM) {
ifp->if_capenable ^= IFCAP_TXCSUM;
if (ifp->if_capenable & IFCAP_TXCSUM)
ifp->if_hwassist |= HN_CSUM_IP_HWASSIST(sc);
else
ifp->if_hwassist &= ~HN_CSUM_IP_HWASSIST(sc);
}
if (mask & IFCAP_TXCSUM_IPV6) {
ifp->if_capenable ^= IFCAP_TXCSUM_IPV6;
if (ifp->if_capenable & IFCAP_TXCSUM_IPV6)
ifp->if_hwassist |= HN_CSUM_IP6_HWASSIST(sc);
else
ifp->if_hwassist &= ~HN_CSUM_IP6_HWASSIST(sc);
}
/* TODO: flip RNDIS offload parameters for RXCSUM. */
if (mask & IFCAP_RXCSUM)
ifp->if_capenable ^= IFCAP_RXCSUM;
#ifdef foo
/* We can't diff IPv6 packets from IPv4 packets on RX path. */
if (mask & IFCAP_RXCSUM_IPV6)
ifp->if_capenable ^= IFCAP_RXCSUM_IPV6;
#endif
if (mask & IFCAP_LRO)
ifp->if_capenable ^= IFCAP_LRO;
if (mask & IFCAP_TSO4) {
ifp->if_capenable ^= IFCAP_TSO4;
if (ifp->if_capenable & IFCAP_TSO4)
ifp->if_hwassist |= CSUM_IP_TSO;
else
ifp->if_hwassist &= ~CSUM_IP_TSO;
}
if (mask & IFCAP_TSO6) {
ifp->if_capenable ^= IFCAP_TSO6;
if (ifp->if_capenable & IFCAP_TSO6)
ifp->if_hwassist |= CSUM_IP6_TSO;
else
ifp->if_hwassist &= ~CSUM_IP6_TSO;
}
HN_UNLOCK(sc);
break;
case SIOCADDMULTI:
case SIOCDELMULTI:
- /* Always all-multi */
+#ifdef notyet
/*
- * TODO:
- * Enable/disable all-multi according to the emptiness of
- * the mcast address list.
+ * XXX
+ * Multicast uses mutex, while RNDIS RX filter setting
+ * sleeps. We workaround this by always enabling
+ * ALLMULTI. ALLMULTI would actually always be on, even
+ * if we supported the SIOCADDMULTI/SIOCDELMULTI, since
+ * we don't support multicast address list configuration
+ * for this driver.
*/
+ HN_LOCK(sc);
+
+ if ((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0) {
+ HN_UNLOCK(sc);
+ break;
+ }
+ if (ifp->if_drv_flags & IFF_DRV_RUNNING)
+ hn_set_rxfilter(sc);
+
+ HN_UNLOCK(sc);
+#endif
break;
case SIOCSIFMEDIA:
case SIOCGIFMEDIA:
error = ifmedia_ioctl(ifp, ifr, &sc->hn_media, cmd);
break;
default:
error = ether_ioctl(ifp, cmd, data);
break;
}
return (error);
}
static void
hn_stop(struct hn_softc *sc)
{
struct ifnet *ifp = sc->hn_ifp;
int i;
HN_LOCK_ASSERT(sc);
KASSERT(sc->hn_flags & HN_FLAG_SYNTH_ATTACHED,
("synthetic parts were not attached"));
/* Clear RUNNING bit _before_ hn_suspend_data() */
atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_RUNNING);
hn_suspend_data(sc);
/* Clear OACTIVE bit. */
atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE);
for (i = 0; i < sc->hn_tx_ring_inuse; ++i)
sc->hn_tx_ring[i].hn_oactive = 0;
}
/*
* FreeBSD transmit entry point
*/
static void
hn_start(struct ifnet *ifp)
{
struct hn_softc *sc = ifp->if_softc;
struct hn_tx_ring *txr = &sc->hn_tx_ring[0];
if (txr->hn_sched_tx)
goto do_sched;
if (mtx_trylock(&txr->hn_tx_lock)) {
int sched;
sched = hn_start_locked(txr, txr->hn_direct_tx_size);
mtx_unlock(&txr->hn_tx_lock);
if (!sched)
return;
}
do_sched:
taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_tx_task);
}
static void
hn_start_txeof(struct hn_tx_ring *txr)
{
struct hn_softc *sc = txr->hn_sc;
struct ifnet *ifp = sc->hn_ifp;
KASSERT(txr == &sc->hn_tx_ring[0], ("not the first TX ring"));
if (txr->hn_sched_tx)
goto do_sched;
if (mtx_trylock(&txr->hn_tx_lock)) {
int sched;
atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE);
sched = hn_start_locked(txr, txr->hn_direct_tx_size);
mtx_unlock(&txr->hn_tx_lock);
if (sched) {
taskqueue_enqueue(txr->hn_tx_taskq,
&txr->hn_tx_task);
}
} else {
do_sched:
/*
* Release the OACTIVE earlier, with the hope, that
* others could catch up. The task will clear the
* flag again with the hn_tx_lock to avoid possible
* races.
*/
atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE);
taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_txeof_task);
}
}
static void
hn_init_locked(struct hn_softc *sc)
{
struct ifnet *ifp = sc->hn_ifp;
int i;
HN_LOCK_ASSERT(sc);
if ((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0)
return;
if (ifp->if_drv_flags & IFF_DRV_RUNNING)
return;
- /* TODO: add hn_rx_filter */
- hn_rndis_set_rxfilter(sc, NDIS_PACKET_TYPE_PROMISCUOUS);
+ /* Configure RX filter */
+ hn_set_rxfilter(sc);
/* Clear OACTIVE bit. */
atomic_clear_int(&ifp->if_drv_flags, IFF_DRV_OACTIVE);
for (i = 0; i < sc->hn_tx_ring_inuse; ++i)
sc->hn_tx_ring[i].hn_oactive = 0;
/* Clear TX 'suspended' bit. */
hn_tx_resume(sc, sc->hn_tx_ring_inuse);
/* Everything is ready; unleash! */
atomic_set_int(&ifp->if_drv_flags, IFF_DRV_RUNNING);
}
static void
hn_init(void *xsc)
{
struct hn_softc *sc = xsc;
HN_LOCK(sc);
hn_init_locked(sc);
HN_UNLOCK(sc);
}
#ifdef LATER
/*
*
*/
static void
hn_watchdog(struct ifnet *ifp)
{
if_printf(ifp, "watchdog timeout -- resetting\n");
hn_init(ifp->if_softc); /* XXX */
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
}
#endif
#if __FreeBSD_version >= 1100099
static int
hn_lro_lenlim_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
unsigned int lenlim;
int error;
lenlim = sc->hn_rx_ring[0].hn_lro.lro_length_lim;
error = sysctl_handle_int(oidp, &lenlim, 0, req);
if (error || req->newptr == NULL)
return error;
HN_LOCK(sc);
if (lenlim < HN_LRO_LENLIM_MIN(sc->hn_ifp) ||
lenlim > TCP_LRO_LENGTH_MAX) {
HN_UNLOCK(sc);
return EINVAL;
}
hn_set_lro_lenlim(sc, lenlim);
HN_UNLOCK(sc);
return 0;
}
static int
hn_lro_ackcnt_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int ackcnt, error, i;
/*
* lro_ackcnt_lim is append count limit,
* +1 to turn it into aggregation limit.
*/
ackcnt = sc->hn_rx_ring[0].hn_lro.lro_ackcnt_lim + 1;
error = sysctl_handle_int(oidp, &ackcnt, 0, req);
if (error || req->newptr == NULL)
return error;
if (ackcnt < 2 || ackcnt > (TCP_LRO_ACKCNT_MAX + 1))
return EINVAL;
/*
* Convert aggregation limit back to append
* count limit.
*/
--ackcnt;
HN_LOCK(sc);
for (i = 0; i < sc->hn_rx_ring_inuse; ++i)
sc->hn_rx_ring[i].hn_lro.lro_ackcnt_lim = ackcnt;
HN_UNLOCK(sc);
return 0;
}
#endif
static int
hn_trust_hcsum_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int hcsum = arg2;
int on, error, i;
on = 0;
if (sc->hn_rx_ring[0].hn_trust_hcsum & hcsum)
on = 1;
error = sysctl_handle_int(oidp, &on, 0, req);
if (error || req->newptr == NULL)
return error;
HN_LOCK(sc);
for (i = 0; i < sc->hn_rx_ring_inuse; ++i) {
struct hn_rx_ring *rxr = &sc->hn_rx_ring[i];
if (on)
rxr->hn_trust_hcsum |= hcsum;
else
rxr->hn_trust_hcsum &= ~hcsum;
}
HN_UNLOCK(sc);
return 0;
}
static int
hn_chim_size_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int chim_size, error;
chim_size = sc->hn_tx_ring[0].hn_chim_size;
error = sysctl_handle_int(oidp, &chim_size, 0, req);
if (error || req->newptr == NULL)
return error;
if (chim_size > sc->hn_chim_szmax || chim_size <= 0)
return EINVAL;
HN_LOCK(sc);
hn_set_chim_size(sc, chim_size);
HN_UNLOCK(sc);
return 0;
}
#if __FreeBSD_version < 1100095
static int
hn_rx_stat_int_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int ofs = arg2, i, error;
struct hn_rx_ring *rxr;
uint64_t stat;
stat = 0;
for (i = 0; i < sc->hn_rx_ring_cnt; ++i) {
rxr = &sc->hn_rx_ring[i];
stat += *((int *)((uint8_t *)rxr + ofs));
}
error = sysctl_handle_64(oidp, &stat, 0, req);
if (error || req->newptr == NULL)
return error;
/* Zero out this stat. */
for (i = 0; i < sc->hn_rx_ring_cnt; ++i) {
rxr = &sc->hn_rx_ring[i];
*((int *)((uint8_t *)rxr + ofs)) = 0;
}
return 0;
}
#else
static int
hn_rx_stat_u64_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int ofs = arg2, i, error;
struct hn_rx_ring *rxr;
uint64_t stat;
stat = 0;
for (i = 0; i < sc->hn_rx_ring_inuse; ++i) {
rxr = &sc->hn_rx_ring[i];
stat += *((uint64_t *)((uint8_t *)rxr + ofs));
}
error = sysctl_handle_64(oidp, &stat, 0, req);
if (error || req->newptr == NULL)
return error;
/* Zero out this stat. */
for (i = 0; i < sc->hn_rx_ring_inuse; ++i) {
rxr = &sc->hn_rx_ring[i];
*((uint64_t *)((uint8_t *)rxr + ofs)) = 0;
}
return 0;
}
#endif
static int
hn_rx_stat_ulong_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int ofs = arg2, i, error;
struct hn_rx_ring *rxr;
u_long stat;
stat = 0;
for (i = 0; i < sc->hn_rx_ring_inuse; ++i) {
rxr = &sc->hn_rx_ring[i];
stat += *((u_long *)((uint8_t *)rxr + ofs));
}
error = sysctl_handle_long(oidp, &stat, 0, req);
if (error || req->newptr == NULL)
return error;
/* Zero out this stat. */
for (i = 0; i < sc->hn_rx_ring_inuse; ++i) {
rxr = &sc->hn_rx_ring[i];
*((u_long *)((uint8_t *)rxr + ofs)) = 0;
}
return 0;
}
static int
hn_tx_stat_ulong_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int ofs = arg2, i, error;
struct hn_tx_ring *txr;
u_long stat;
stat = 0;
for (i = 0; i < sc->hn_tx_ring_inuse; ++i) {
txr = &sc->hn_tx_ring[i];
stat += *((u_long *)((uint8_t *)txr + ofs));
}
error = sysctl_handle_long(oidp, &stat, 0, req);
if (error || req->newptr == NULL)
return error;
/* Zero out this stat. */
for (i = 0; i < sc->hn_tx_ring_inuse; ++i) {
txr = &sc->hn_tx_ring[i];
*((u_long *)((uint8_t *)txr + ofs)) = 0;
}
return 0;
}
static int
hn_tx_conf_int_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int ofs = arg2, i, error, conf;
struct hn_tx_ring *txr;
txr = &sc->hn_tx_ring[0];
conf = *((int *)((uint8_t *)txr + ofs));
error = sysctl_handle_int(oidp, &conf, 0, req);
if (error || req->newptr == NULL)
return error;
HN_LOCK(sc);
for (i = 0; i < sc->hn_tx_ring_inuse; ++i) {
txr = &sc->hn_tx_ring[i];
*((int *)((uint8_t *)txr + ofs)) = conf;
}
HN_UNLOCK(sc);
return 0;
}
static int
hn_ndis_version_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
char verstr[16];
snprintf(verstr, sizeof(verstr), "%u.%u",
HN_NDIS_VERSION_MAJOR(sc->hn_ndis_ver),
HN_NDIS_VERSION_MINOR(sc->hn_ndis_ver));
return sysctl_handle_string(oidp, verstr, sizeof(verstr), req);
}
static int
hn_caps_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
char caps_str[128];
uint32_t caps;
HN_LOCK(sc);
caps = sc->hn_caps;
HN_UNLOCK(sc);
snprintf(caps_str, sizeof(caps_str), "%b", caps,
"\020"
"\001VLAN"
"\002MTU"
"\003IPCS"
"\004TCP4CS"
"\005TCP6CS"
"\006UDP4CS"
"\007UDP6CS"
"\010TSO4"
"\011TSO6"
"\012HASHVAL");
return sysctl_handle_string(oidp, caps_str, sizeof(caps_str), req);
}
static int
hn_hwassist_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
char assist_str[128];
uint32_t hwassist;
HN_LOCK(sc);
hwassist = sc->hn_ifp->if_hwassist;
HN_UNLOCK(sc);
snprintf(assist_str, sizeof(assist_str), "%b", hwassist, CSUM_BITS);
return sysctl_handle_string(oidp, assist_str, sizeof(assist_str), req);
}
+static int
+hn_rxfilter_sysctl(SYSCTL_HANDLER_ARGS)
+{
+ struct hn_softc *sc = arg1;
+ char filter_str[128];
+ uint32_t filter;
+
+ HN_LOCK(sc);
+ filter = sc->hn_rx_filter;
+ HN_UNLOCK(sc);
+ snprintf(filter_str, sizeof(filter_str), "%b", filter,
+ NDIS_PACKET_TYPES);
+ return sysctl_handle_string(oidp, filter_str, sizeof(filter_str), req);
+}
+
static int
hn_rss_key_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int error;
HN_LOCK(sc);
error = SYSCTL_OUT(req, sc->hn_rss.rss_key, sizeof(sc->hn_rss.rss_key));
if (error || req->newptr == NULL)
goto back;
error = SYSCTL_IN(req, sc->hn_rss.rss_key, sizeof(sc->hn_rss.rss_key));
if (error)
goto back;
sc->hn_flags |= HN_FLAG_HAS_RSSKEY;
if (sc->hn_rx_ring_inuse > 1) {
error = hn_rss_reconfig(sc);
} else {
/* Not RSS capable, at least for now; just save the RSS key. */
error = 0;
}
back:
HN_UNLOCK(sc);
return (error);
}
static int
hn_rss_ind_sysctl(SYSCTL_HANDLER_ARGS)
{
struct hn_softc *sc = arg1;
int error;
HN_LOCK(sc);
error = SYSCTL_OUT(req, sc->hn_rss.rss_ind, sizeof(sc->hn_rss.rss_ind));
if (error || req->newptr == NULL)
goto back;
/*
* Don't allow RSS indirect table change, if this interface is not
* RSS capable currently.
*/
if (sc->hn_rx_ring_inuse == 1) {
error = EOPNOTSUPP;
goto back;
}
error = SYSCTL_IN(req, sc->hn_rss.rss_ind, sizeof(sc->hn_rss.rss_ind));
if (error)
goto back;
sc->hn_flags |= HN_FLAG_HAS_RSSIND;
hn_rss_ind_fixup(sc, sc->hn_rx_ring_inuse);
error = hn_rss_reconfig(sc);
back:
HN_UNLOCK(sc);
return (error);
}
static int
hn_check_iplen(const struct mbuf *m, int hoff)
{
const struct ip *ip;
int len, iphlen, iplen;
const struct tcphdr *th;
int thoff; /* TCP data offset */
len = hoff + sizeof(struct ip);
/* The packet must be at least the size of an IP header. */
if (m->m_pkthdr.len < len)
return IPPROTO_DONE;
/* The fixed IP header must reside completely in the first mbuf. */
if (m->m_len < len)
return IPPROTO_DONE;
ip = mtodo(m, hoff);
/* Bound check the packet's stated IP header length. */
iphlen = ip->ip_hl << 2;
if (iphlen < sizeof(struct ip)) /* minimum header length */
return IPPROTO_DONE;
/* The full IP header must reside completely in the one mbuf. */
if (m->m_len < hoff + iphlen)
return IPPROTO_DONE;
iplen = ntohs(ip->ip_len);
/*
* Check that the amount of data in the buffers is as
* at least much as the IP header would have us expect.
*/
if (m->m_pkthdr.len < hoff + iplen)
return IPPROTO_DONE;
/*
* Ignore IP fragments.
*/
if (ntohs(ip->ip_off) & (IP_OFFMASK | IP_MF))
return IPPROTO_DONE;
/*
* The TCP/IP or UDP/IP header must be entirely contained within
* the first fragment of a packet.
*/
switch (ip->ip_p) {
case IPPROTO_TCP:
if (iplen < iphlen + sizeof(struct tcphdr))
return IPPROTO_DONE;
if (m->m_len < hoff + iphlen + sizeof(struct tcphdr))
return IPPROTO_DONE;
th = (const struct tcphdr *)((const uint8_t *)ip + iphlen);
thoff = th->th_off << 2;
if (thoff < sizeof(struct tcphdr) || thoff + iphlen > iplen)
return IPPROTO_DONE;
if (m->m_len < hoff + iphlen + thoff)
return IPPROTO_DONE;
break;
case IPPROTO_UDP:
if (iplen < iphlen + sizeof(struct udphdr))
return IPPROTO_DONE;
if (m->m_len < hoff + iphlen + sizeof(struct udphdr))
return IPPROTO_DONE;
break;
default:
if (iplen < iphlen)
return IPPROTO_DONE;
break;
}
return ip->ip_p;
}
static int
hn_create_rx_data(struct hn_softc *sc, int ring_cnt)
{
struct sysctl_oid_list *child;
struct sysctl_ctx_list *ctx;
device_t dev = sc->hn_dev;
#if defined(INET) || defined(INET6)
#if __FreeBSD_version >= 1100095
int lroent_cnt;
#endif
#endif
int i;
/*
* Create RXBUF for reception.
*
* NOTE:
* - It is shared by all channels.
* - A large enough buffer is allocated, certain version of NVSes
* may further limit the usable space.
*/
sc->hn_rxbuf = hyperv_dmamem_alloc(bus_get_dma_tag(dev),
PAGE_SIZE, 0, NETVSC_RECEIVE_BUFFER_SIZE, &sc->hn_rxbuf_dma,
BUS_DMA_WAITOK | BUS_DMA_ZERO);
if (sc->hn_rxbuf == NULL) {
device_printf(sc->hn_dev, "allocate rxbuf failed\n");
return (ENOMEM);
}
sc->hn_rx_ring_cnt = ring_cnt;
sc->hn_rx_ring_inuse = sc->hn_rx_ring_cnt;
sc->hn_rx_ring = malloc(sizeof(struct hn_rx_ring) * sc->hn_rx_ring_cnt,
M_NETVSC, M_WAITOK | M_ZERO);
#if defined(INET) || defined(INET6)
#if __FreeBSD_version >= 1100095
lroent_cnt = hn_lro_entry_count;
if (lroent_cnt < TCP_LRO_ENTRIES)
lroent_cnt = TCP_LRO_ENTRIES;
if (bootverbose)
device_printf(dev, "LRO: entry count %d\n", lroent_cnt);
#endif
#endif /* INET || INET6 */
ctx = device_get_sysctl_ctx(dev);
child = SYSCTL_CHILDREN(device_get_sysctl_tree(dev));
/* Create dev.hn.UNIT.rx sysctl tree */
sc->hn_rx_sysctl_tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "rx",
CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "");
for (i = 0; i < sc->hn_rx_ring_cnt; ++i) {
struct hn_rx_ring *rxr = &sc->hn_rx_ring[i];
rxr->hn_br = hyperv_dmamem_alloc(bus_get_dma_tag(dev),
PAGE_SIZE, 0,
NETVSC_DEVICE_RING_BUFFER_SIZE +
NETVSC_DEVICE_RING_BUFFER_SIZE,
&rxr->hn_br_dma, BUS_DMA_WAITOK);
if (rxr->hn_br == NULL) {
device_printf(dev, "allocate bufring failed\n");
return (ENOMEM);
}
if (hn_trust_hosttcp)
rxr->hn_trust_hcsum |= HN_TRUST_HCSUM_TCP;
if (hn_trust_hostudp)
rxr->hn_trust_hcsum |= HN_TRUST_HCSUM_UDP;
if (hn_trust_hostip)
rxr->hn_trust_hcsum |= HN_TRUST_HCSUM_IP;
rxr->hn_ifp = sc->hn_ifp;
if (i < sc->hn_tx_ring_cnt)
rxr->hn_txr = &sc->hn_tx_ring[i];
rxr->hn_rdbuf = malloc(NETVSC_PACKET_SIZE, M_NETVSC, M_WAITOK);
rxr->hn_rx_idx = i;
rxr->hn_rxbuf = sc->hn_rxbuf;
/*
* Initialize LRO.
*/
#if defined(INET) || defined(INET6)
#if __FreeBSD_version >= 1100095
tcp_lro_init_args(&rxr->hn_lro, sc->hn_ifp, lroent_cnt,
hn_lro_mbufq_depth);
#else
tcp_lro_init(&rxr->hn_lro);
rxr->hn_lro.ifp = sc->hn_ifp;
#endif
#if __FreeBSD_version >= 1100099
rxr->hn_lro.lro_length_lim = HN_LRO_LENLIM_DEF;
rxr->hn_lro.lro_ackcnt_lim = HN_LRO_ACKCNT_DEF;
#endif
#endif /* INET || INET6 */
if (sc->hn_rx_sysctl_tree != NULL) {
char name[16];
/*
* Create per RX ring sysctl tree:
* dev.hn.UNIT.rx.RINGID
*/
snprintf(name, sizeof(name), "%d", i);
rxr->hn_rx_sysctl_tree = SYSCTL_ADD_NODE(ctx,
SYSCTL_CHILDREN(sc->hn_rx_sysctl_tree),
OID_AUTO, name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "");
if (rxr->hn_rx_sysctl_tree != NULL) {
SYSCTL_ADD_ULONG(ctx,
SYSCTL_CHILDREN(rxr->hn_rx_sysctl_tree),
OID_AUTO, "packets", CTLFLAG_RW,
&rxr->hn_pkts, "# of packets received");
SYSCTL_ADD_ULONG(ctx,
SYSCTL_CHILDREN(rxr->hn_rx_sysctl_tree),
OID_AUTO, "rss_pkts", CTLFLAG_RW,
&rxr->hn_rss_pkts,
"# of packets w/ RSS info received");
}
}
}
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_queued",
CTLTYPE_U64 | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_rx_ring, hn_lro.lro_queued),
#if __FreeBSD_version < 1100095
hn_rx_stat_int_sysctl,
#else
hn_rx_stat_u64_sysctl,
#endif
"LU", "LRO queued");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_flushed",
CTLTYPE_U64 | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_rx_ring, hn_lro.lro_flushed),
#if __FreeBSD_version < 1100095
hn_rx_stat_int_sysctl,
#else
hn_rx_stat_u64_sysctl,
#endif
"LU", "LRO flushed");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_tried",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_rx_ring, hn_lro_tried),
hn_rx_stat_ulong_sysctl, "LU", "# of LRO tries");
#if __FreeBSD_version >= 1100099
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_length_lim",
CTLTYPE_UINT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
hn_lro_lenlim_sysctl, "IU",
"Max # of data bytes to be aggregated by LRO");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "lro_ackcnt_lim",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
hn_lro_ackcnt_sysctl, "I",
"Max # of ACKs to be aggregated by LRO");
#endif
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "trust_hosttcp",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, HN_TRUST_HCSUM_TCP,
hn_trust_hcsum_sysctl, "I",
"Trust tcp segement verification on host side, "
"when csum info is missing");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "trust_hostudp",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, HN_TRUST_HCSUM_UDP,
hn_trust_hcsum_sysctl, "I",
"Trust udp datagram verification on host side, "
"when csum info is missing");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "trust_hostip",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, HN_TRUST_HCSUM_IP,
hn_trust_hcsum_sysctl, "I",
"Trust ip packet verification on host side, "
"when csum info is missing");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "csum_ip",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_rx_ring, hn_csum_ip),
hn_rx_stat_ulong_sysctl, "LU", "RXCSUM IP");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "csum_tcp",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_rx_ring, hn_csum_tcp),
hn_rx_stat_ulong_sysctl, "LU", "RXCSUM TCP");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "csum_udp",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_rx_ring, hn_csum_udp),
hn_rx_stat_ulong_sysctl, "LU", "RXCSUM UDP");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "csum_trusted",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_rx_ring, hn_csum_trusted),
hn_rx_stat_ulong_sysctl, "LU",
"# of packets that we trust host's csum verification");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "small_pkts",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_rx_ring, hn_small_pkts),
hn_rx_stat_ulong_sysctl, "LU", "# of small packets received");
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "rx_ring_cnt",
CTLFLAG_RD, &sc->hn_rx_ring_cnt, 0, "# created RX rings");
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "rx_ring_inuse",
CTLFLAG_RD, &sc->hn_rx_ring_inuse, 0, "# used RX rings");
return (0);
}
static void
hn_destroy_rx_data(struct hn_softc *sc)
{
int i;
if (sc->hn_rxbuf != NULL) {
hyperv_dmamem_free(&sc->hn_rxbuf_dma, sc->hn_rxbuf);
sc->hn_rxbuf = NULL;
}
if (sc->hn_rx_ring_cnt == 0)
return;
for (i = 0; i < sc->hn_rx_ring_cnt; ++i) {
struct hn_rx_ring *rxr = &sc->hn_rx_ring[i];
if (rxr->hn_br == NULL)
continue;
hyperv_dmamem_free(&rxr->hn_br_dma, rxr->hn_br);
rxr->hn_br = NULL;
#if defined(INET) || defined(INET6)
tcp_lro_free(&rxr->hn_lro);
#endif
free(rxr->hn_rdbuf, M_NETVSC);
}
free(sc->hn_rx_ring, M_NETVSC);
sc->hn_rx_ring = NULL;
sc->hn_rx_ring_cnt = 0;
sc->hn_rx_ring_inuse = 0;
}
static int
hn_create_tx_ring(struct hn_softc *sc, int id)
{
struct hn_tx_ring *txr = &sc->hn_tx_ring[id];
device_t dev = sc->hn_dev;
bus_dma_tag_t parent_dtag;
int error, i;
txr->hn_sc = sc;
txr->hn_tx_idx = id;
#ifndef HN_USE_TXDESC_BUFRING
mtx_init(&txr->hn_txlist_spin, "hn txlist", NULL, MTX_SPIN);
#endif
mtx_init(&txr->hn_tx_lock, "hn tx", NULL, MTX_DEF);
txr->hn_txdesc_cnt = HN_TX_DESC_CNT;
txr->hn_txdesc = malloc(sizeof(struct hn_txdesc) * txr->hn_txdesc_cnt,
M_NETVSC, M_WAITOK | M_ZERO);
#ifndef HN_USE_TXDESC_BUFRING
SLIST_INIT(&txr->hn_txlist);
#else
txr->hn_txdesc_br = buf_ring_alloc(txr->hn_txdesc_cnt, M_NETVSC,
M_WAITOK, &txr->hn_tx_lock);
#endif
txr->hn_tx_taskq = sc->hn_tx_taskq;
if (hn_use_if_start) {
txr->hn_txeof = hn_start_txeof;
TASK_INIT(&txr->hn_tx_task, 0, hn_start_taskfunc, txr);
TASK_INIT(&txr->hn_txeof_task, 0, hn_start_txeof_taskfunc, txr);
} else {
int br_depth;
txr->hn_txeof = hn_xmit_txeof;
TASK_INIT(&txr->hn_tx_task, 0, hn_xmit_taskfunc, txr);
TASK_INIT(&txr->hn_txeof_task, 0, hn_xmit_txeof_taskfunc, txr);
br_depth = hn_get_txswq_depth(txr);
txr->hn_mbuf_br = buf_ring_alloc(br_depth, M_NETVSC,
M_WAITOK, &txr->hn_tx_lock);
}
txr->hn_direct_tx_size = hn_direct_tx_size;
/*
* Always schedule transmission instead of trying to do direct
* transmission. This one gives the best performance so far.
*/
txr->hn_sched_tx = 1;
parent_dtag = bus_get_dma_tag(dev);
/* DMA tag for RNDIS packet messages. */
error = bus_dma_tag_create(parent_dtag, /* parent */
HN_RNDIS_PKT_ALIGN, /* alignment */
HN_RNDIS_PKT_BOUNDARY, /* boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
HN_RNDIS_PKT_LEN, /* maxsize */
1, /* nsegments */
HN_RNDIS_PKT_LEN, /* maxsegsize */
0, /* flags */
NULL, /* lockfunc */
NULL, /* lockfuncarg */
&txr->hn_tx_rndis_dtag);
if (error) {
device_printf(dev, "failed to create rndis dmatag\n");
return error;
}
/* DMA tag for data. */
error = bus_dma_tag_create(parent_dtag, /* parent */
1, /* alignment */
HN_TX_DATA_BOUNDARY, /* boundary */
BUS_SPACE_MAXADDR, /* lowaddr */
BUS_SPACE_MAXADDR, /* highaddr */
NULL, NULL, /* filter, filterarg */
HN_TX_DATA_MAXSIZE, /* maxsize */
HN_TX_DATA_SEGCNT_MAX, /* nsegments */
HN_TX_DATA_SEGSIZE, /* maxsegsize */
0, /* flags */
NULL, /* lockfunc */
NULL, /* lockfuncarg */
&txr->hn_tx_data_dtag);
if (error) {
device_printf(dev, "failed to create data dmatag\n");
return error;
}
for (i = 0; i < txr->hn_txdesc_cnt; ++i) {
struct hn_txdesc *txd = &txr->hn_txdesc[i];
txd->txr = txr;
txd->chim_index = HN_NVS_CHIM_IDX_INVALID;
/*
* Allocate and load RNDIS packet message.
*/
error = bus_dmamem_alloc(txr->hn_tx_rndis_dtag,
(void **)&txd->rndis_pkt,
BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO,
&txd->rndis_pkt_dmap);
if (error) {
device_printf(dev,
"failed to allocate rndis_packet_msg, %d\n", i);
return error;
}
error = bus_dmamap_load(txr->hn_tx_rndis_dtag,
txd->rndis_pkt_dmap,
txd->rndis_pkt, HN_RNDIS_PKT_LEN,
hyperv_dma_map_paddr, &txd->rndis_pkt_paddr,
BUS_DMA_NOWAIT);
if (error) {
device_printf(dev,
"failed to load rndis_packet_msg, %d\n", i);
bus_dmamem_free(txr->hn_tx_rndis_dtag,
txd->rndis_pkt, txd->rndis_pkt_dmap);
return error;
}
/* DMA map for TX data. */
error = bus_dmamap_create(txr->hn_tx_data_dtag, 0,
&txd->data_dmap);
if (error) {
device_printf(dev,
"failed to allocate tx data dmamap\n");
bus_dmamap_unload(txr->hn_tx_rndis_dtag,
txd->rndis_pkt_dmap);
bus_dmamem_free(txr->hn_tx_rndis_dtag,
txd->rndis_pkt, txd->rndis_pkt_dmap);
return error;
}
/* All set, put it to list */
txd->flags |= HN_TXD_FLAG_ONLIST;
#ifndef HN_USE_TXDESC_BUFRING
SLIST_INSERT_HEAD(&txr->hn_txlist, txd, link);
#else
buf_ring_enqueue(txr->hn_txdesc_br, txd);
#endif
}
txr->hn_txdesc_avail = txr->hn_txdesc_cnt;
if (sc->hn_tx_sysctl_tree != NULL) {
struct sysctl_oid_list *child;
struct sysctl_ctx_list *ctx;
char name[16];
/*
* Create per TX ring sysctl tree:
* dev.hn.UNIT.tx.RINGID
*/
ctx = device_get_sysctl_ctx(dev);
child = SYSCTL_CHILDREN(sc->hn_tx_sysctl_tree);
snprintf(name, sizeof(name), "%d", id);
txr->hn_tx_sysctl_tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO,
name, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "");
if (txr->hn_tx_sysctl_tree != NULL) {
child = SYSCTL_CHILDREN(txr->hn_tx_sysctl_tree);
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "txdesc_avail",
CTLFLAG_RD, &txr->hn_txdesc_avail, 0,
"# of available TX descs");
if (!hn_use_if_start) {
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "oactive",
CTLFLAG_RD, &txr->hn_oactive, 0,
"over active");
}
SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "packets",
CTLFLAG_RW, &txr->hn_pkts,
"# of packets transmitted");
}
}
return 0;
}
static void
hn_txdesc_dmamap_destroy(struct hn_txdesc *txd)
{
struct hn_tx_ring *txr = txd->txr;
KASSERT(txd->m == NULL, ("still has mbuf installed"));
KASSERT((txd->flags & HN_TXD_FLAG_DMAMAP) == 0, ("still dma mapped"));
bus_dmamap_unload(txr->hn_tx_rndis_dtag, txd->rndis_pkt_dmap);
bus_dmamem_free(txr->hn_tx_rndis_dtag, txd->rndis_pkt,
txd->rndis_pkt_dmap);
bus_dmamap_destroy(txr->hn_tx_data_dtag, txd->data_dmap);
}
static void
hn_destroy_tx_ring(struct hn_tx_ring *txr)
{
struct hn_txdesc *txd;
if (txr->hn_txdesc == NULL)
return;
#ifndef HN_USE_TXDESC_BUFRING
while ((txd = SLIST_FIRST(&txr->hn_txlist)) != NULL) {
SLIST_REMOVE_HEAD(&txr->hn_txlist, link);
hn_txdesc_dmamap_destroy(txd);
}
#else
mtx_lock(&txr->hn_tx_lock);
while ((txd = buf_ring_dequeue_sc(txr->hn_txdesc_br)) != NULL)
hn_txdesc_dmamap_destroy(txd);
mtx_unlock(&txr->hn_tx_lock);
#endif
if (txr->hn_tx_data_dtag != NULL)
bus_dma_tag_destroy(txr->hn_tx_data_dtag);
if (txr->hn_tx_rndis_dtag != NULL)
bus_dma_tag_destroy(txr->hn_tx_rndis_dtag);
#ifdef HN_USE_TXDESC_BUFRING
buf_ring_free(txr->hn_txdesc_br, M_NETVSC);
#endif
free(txr->hn_txdesc, M_NETVSC);
txr->hn_txdesc = NULL;
if (txr->hn_mbuf_br != NULL)
buf_ring_free(txr->hn_mbuf_br, M_NETVSC);
#ifndef HN_USE_TXDESC_BUFRING
mtx_destroy(&txr->hn_txlist_spin);
#endif
mtx_destroy(&txr->hn_tx_lock);
}
static int
hn_create_tx_data(struct hn_softc *sc, int ring_cnt)
{
struct sysctl_oid_list *child;
struct sysctl_ctx_list *ctx;
int i;
/*
* Create TXBUF for chimney sending.
*
* NOTE: It is shared by all channels.
*/
sc->hn_chim = hyperv_dmamem_alloc(bus_get_dma_tag(sc->hn_dev),
PAGE_SIZE, 0, NETVSC_SEND_BUFFER_SIZE, &sc->hn_chim_dma,
BUS_DMA_WAITOK | BUS_DMA_ZERO);
if (sc->hn_chim == NULL) {
device_printf(sc->hn_dev, "allocate txbuf failed\n");
return (ENOMEM);
}
sc->hn_tx_ring_cnt = ring_cnt;
sc->hn_tx_ring_inuse = sc->hn_tx_ring_cnt;
sc->hn_tx_ring = malloc(sizeof(struct hn_tx_ring) * sc->hn_tx_ring_cnt,
M_NETVSC, M_WAITOK | M_ZERO);
ctx = device_get_sysctl_ctx(sc->hn_dev);
child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->hn_dev));
/* Create dev.hn.UNIT.tx sysctl tree */
sc->hn_tx_sysctl_tree = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "tx",
CTLFLAG_RD | CTLFLAG_MPSAFE, 0, "");
for (i = 0; i < sc->hn_tx_ring_cnt; ++i) {
int error;
error = hn_create_tx_ring(sc, i);
if (error)
return error;
}
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "no_txdescs",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_tx_ring, hn_no_txdescs),
hn_tx_stat_ulong_sysctl, "LU", "# of times short of TX descs");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "send_failed",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_tx_ring, hn_send_failed),
hn_tx_stat_ulong_sysctl, "LU", "# of hyper-v sending failure");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "txdma_failed",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_tx_ring, hn_txdma_failed),
hn_tx_stat_ulong_sysctl, "LU", "# of TX DMA failure");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_collapsed",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_tx_ring, hn_tx_collapsed),
hn_tx_stat_ulong_sysctl, "LU", "# of TX mbuf collapsed");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_chimney",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_tx_ring, hn_tx_chimney),
hn_tx_stat_ulong_sysctl, "LU", "# of chimney send");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_chimney_tried",
CTLTYPE_ULONG | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_tx_ring, hn_tx_chimney_tried),
hn_tx_stat_ulong_sysctl, "LU", "# of chimney send tries");
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "txdesc_cnt",
CTLFLAG_RD, &sc->hn_tx_ring[0].hn_txdesc_cnt, 0,
"# of total TX descs");
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "tx_chimney_max",
CTLFLAG_RD, &sc->hn_chim_szmax, 0,
"Chimney send packet size upper boundary");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "tx_chimney_size",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc, 0,
hn_chim_size_sysctl, "I", "Chimney send packet size limit");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "direct_tx_size",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_tx_ring, hn_direct_tx_size),
hn_tx_conf_int_sysctl, "I",
"Size of the packet for direct transmission");
SYSCTL_ADD_PROC(ctx, child, OID_AUTO, "sched_tx",
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_MPSAFE, sc,
__offsetof(struct hn_tx_ring, hn_sched_tx),
hn_tx_conf_int_sysctl, "I",
"Always schedule transmission "
"instead of doing direct transmission");
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "tx_ring_cnt",
CTLFLAG_RD, &sc->hn_tx_ring_cnt, 0, "# created TX rings");
SYSCTL_ADD_INT(ctx, child, OID_AUTO, "tx_ring_inuse",
CTLFLAG_RD, &sc->hn_tx_ring_inuse, 0, "# used TX rings");
return 0;
}
static void
hn_set_chim_size(struct hn_softc *sc, int chim_size)
{
int i;
for (i = 0; i < sc->hn_tx_ring_inuse; ++i)
sc->hn_tx_ring[i].hn_chim_size = chim_size;
}
static void
hn_set_tso_maxsize(struct hn_softc *sc, int tso_maxlen, int mtu)
{
struct ifnet *ifp = sc->hn_ifp;
int tso_minlen;
if ((ifp->if_capabilities & (IFCAP_TSO4 | IFCAP_TSO6)) == 0)
return;
KASSERT(sc->hn_ndis_tso_sgmin >= 2,
("invalid NDIS tso sgmin %d", sc->hn_ndis_tso_sgmin));
tso_minlen = sc->hn_ndis_tso_sgmin * mtu;
KASSERT(sc->hn_ndis_tso_szmax >= tso_minlen &&
sc->hn_ndis_tso_szmax <= IP_MAXPACKET,
("invalid NDIS tso szmax %d", sc->hn_ndis_tso_szmax));
if (tso_maxlen < tso_minlen)
tso_maxlen = tso_minlen;
else if (tso_maxlen > IP_MAXPACKET)
tso_maxlen = IP_MAXPACKET;
if (tso_maxlen > sc->hn_ndis_tso_szmax)
tso_maxlen = sc->hn_ndis_tso_szmax;
ifp->if_hw_tsomax = tso_maxlen - (ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN);
if (bootverbose)
if_printf(ifp, "TSO size max %u\n", ifp->if_hw_tsomax);
}
static void
hn_fixup_tx_data(struct hn_softc *sc)
{
uint64_t csum_assist;
int i;
hn_set_chim_size(sc, sc->hn_chim_szmax);
if (hn_tx_chimney_size > 0 &&
hn_tx_chimney_size < sc->hn_chim_szmax)
hn_set_chim_size(sc, hn_tx_chimney_size);
csum_assist = 0;
if (sc->hn_caps & HN_CAP_IPCS)
csum_assist |= CSUM_IP;
if (sc->hn_caps & HN_CAP_TCP4CS)
csum_assist |= CSUM_IP_TCP;
if (sc->hn_caps & HN_CAP_UDP4CS)
csum_assist |= CSUM_IP_UDP;
#ifdef notyet
if (sc->hn_caps & HN_CAP_TCP6CS)
csum_assist |= CSUM_IP6_TCP;
if (sc->hn_caps & HN_CAP_UDP6CS)
csum_assist |= CSUM_IP6_UDP;
#endif
for (i = 0; i < sc->hn_tx_ring_cnt; ++i)
sc->hn_tx_ring[i].hn_csum_assist = csum_assist;
if (sc->hn_caps & HN_CAP_HASHVAL) {
/*
* Support HASHVAL pktinfo on TX path.
*/
if (bootverbose)
if_printf(sc->hn_ifp, "support HASHVAL pktinfo\n");
for (i = 0; i < sc->hn_tx_ring_cnt; ++i)
sc->hn_tx_ring[i].hn_tx_flags |= HN_TX_FLAG_HASHVAL;
}
}
static void
hn_destroy_tx_data(struct hn_softc *sc)
{
int i;
if (sc->hn_chim != NULL) {
hyperv_dmamem_free(&sc->hn_chim_dma, sc->hn_chim);
sc->hn_chim = NULL;
}
if (sc->hn_tx_ring_cnt == 0)
return;
for (i = 0; i < sc->hn_tx_ring_cnt; ++i)
hn_destroy_tx_ring(&sc->hn_tx_ring[i]);
free(sc->hn_tx_ring, M_NETVSC);
sc->hn_tx_ring = NULL;
sc->hn_tx_ring_cnt = 0;
sc->hn_tx_ring_inuse = 0;
}
static void
hn_start_taskfunc(void *xtxr, int pending __unused)
{
struct hn_tx_ring *txr = xtxr;
mtx_lock(&txr->hn_tx_lock);
hn_start_locked(txr, 0);
mtx_unlock(&txr->hn_tx_lock);
}
static void
hn_start_txeof_taskfunc(void *xtxr, int pending __unused)
{
struct hn_tx_ring *txr = xtxr;
mtx_lock(&txr->hn_tx_lock);
atomic_clear_int(&txr->hn_sc->hn_ifp->if_drv_flags, IFF_DRV_OACTIVE);
hn_start_locked(txr, 0);
mtx_unlock(&txr->hn_tx_lock);
}
static int
hn_xmit(struct hn_tx_ring *txr, int len)
{
struct hn_softc *sc = txr->hn_sc;
struct ifnet *ifp = sc->hn_ifp;
struct mbuf *m_head;
mtx_assert(&txr->hn_tx_lock, MA_OWNED);
KASSERT(hn_use_if_start == 0,
("hn_xmit is called, when if_start is enabled"));
if (__predict_false(txr->hn_suspended))
return 0;
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0 || txr->hn_oactive)
return 0;
while ((m_head = drbr_peek(ifp, txr->hn_mbuf_br)) != NULL) {
struct hn_txdesc *txd;
int error;
if (len > 0 && m_head->m_pkthdr.len > len) {
/*
* This sending could be time consuming; let callers
* dispatch this packet sending (and sending of any
* following up packets) to tx taskqueue.
*/
drbr_putback(ifp, txr->hn_mbuf_br, m_head);
return 1;
}
txd = hn_txdesc_get(txr);
if (txd == NULL) {
txr->hn_no_txdescs++;
drbr_putback(ifp, txr->hn_mbuf_br, m_head);
txr->hn_oactive = 1;
break;
}
error = hn_encap(txr, txd, &m_head);
if (error) {
/* Both txd and m_head are freed; discard */
drbr_advance(ifp, txr->hn_mbuf_br);
continue;
}
error = hn_send_pkt(ifp, txr, txd);
if (__predict_false(error)) {
/* txd is freed, but m_head is not */
drbr_putback(ifp, txr->hn_mbuf_br, m_head);
txr->hn_oactive = 1;
break;
}
/* Sent */
drbr_advance(ifp, txr->hn_mbuf_br);
}
return 0;
}
static int
hn_transmit(struct ifnet *ifp, struct mbuf *m)
{
struct hn_softc *sc = ifp->if_softc;
struct hn_tx_ring *txr;
int error, idx = 0;
/*
* Select the TX ring based on flowid
*/
if (M_HASHTYPE_GET(m) != M_HASHTYPE_NONE)
idx = m->m_pkthdr.flowid % sc->hn_tx_ring_inuse;
txr = &sc->hn_tx_ring[idx];
error = drbr_enqueue(ifp, txr->hn_mbuf_br, m);
if (error) {
if_inc_counter(ifp, IFCOUNTER_OQDROPS, 1);
return error;
}
if (txr->hn_oactive)
return 0;
if (txr->hn_sched_tx)
goto do_sched;
if (mtx_trylock(&txr->hn_tx_lock)) {
int sched;
sched = hn_xmit(txr, txr->hn_direct_tx_size);
mtx_unlock(&txr->hn_tx_lock);
if (!sched)
return 0;
}
do_sched:
taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_tx_task);
return 0;
}
static void
hn_tx_ring_qflush(struct hn_tx_ring *txr)
{
struct mbuf *m;
mtx_lock(&txr->hn_tx_lock);
while ((m = buf_ring_dequeue_sc(txr->hn_mbuf_br)) != NULL)
m_freem(m);
mtx_unlock(&txr->hn_tx_lock);
}
static void
hn_xmit_qflush(struct ifnet *ifp)
{
struct hn_softc *sc = ifp->if_softc;
int i;
for (i = 0; i < sc->hn_tx_ring_inuse; ++i)
hn_tx_ring_qflush(&sc->hn_tx_ring[i]);
if_qflush(ifp);
}
static void
hn_xmit_txeof(struct hn_tx_ring *txr)
{
if (txr->hn_sched_tx)
goto do_sched;
if (mtx_trylock(&txr->hn_tx_lock)) {
int sched;
txr->hn_oactive = 0;
sched = hn_xmit(txr, txr->hn_direct_tx_size);
mtx_unlock(&txr->hn_tx_lock);
if (sched) {
taskqueue_enqueue(txr->hn_tx_taskq,
&txr->hn_tx_task);
}
} else {
do_sched:
/*
* Release the oactive earlier, with the hope, that
* others could catch up. The task will clear the
* oactive again with the hn_tx_lock to avoid possible
* races.
*/
txr->hn_oactive = 0;
taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_txeof_task);
}
}
static void
hn_xmit_taskfunc(void *xtxr, int pending __unused)
{
struct hn_tx_ring *txr = xtxr;
mtx_lock(&txr->hn_tx_lock);
hn_xmit(txr, 0);
mtx_unlock(&txr->hn_tx_lock);
}
static void
hn_xmit_txeof_taskfunc(void *xtxr, int pending __unused)
{
struct hn_tx_ring *txr = xtxr;
mtx_lock(&txr->hn_tx_lock);
txr->hn_oactive = 0;
hn_xmit(txr, 0);
mtx_unlock(&txr->hn_tx_lock);
}
static int
hn_chan_attach(struct hn_softc *sc, struct vmbus_channel *chan)
{
struct vmbus_chan_br cbr;
struct hn_rx_ring *rxr;
struct hn_tx_ring *txr = NULL;
int idx, error;
idx = vmbus_chan_subidx(chan);
/*
* Link this channel to RX/TX ring.
*/
KASSERT(idx >= 0 && idx < sc->hn_rx_ring_inuse,
("invalid channel index %d, should > 0 && < %d",
idx, sc->hn_rx_ring_inuse));
rxr = &sc->hn_rx_ring[idx];
KASSERT((rxr->hn_rx_flags & HN_RX_FLAG_ATTACHED) == 0,
("RX ring %d already attached", idx));
rxr->hn_rx_flags |= HN_RX_FLAG_ATTACHED;
if (bootverbose) {
if_printf(sc->hn_ifp, "link RX ring %d to chan%u\n",
idx, vmbus_chan_id(chan));
}
if (idx < sc->hn_tx_ring_inuse) {
txr = &sc->hn_tx_ring[idx];
KASSERT((txr->hn_tx_flags & HN_TX_FLAG_ATTACHED) == 0,
("TX ring %d already attached", idx));
txr->hn_tx_flags |= HN_TX_FLAG_ATTACHED;
txr->hn_chan = chan;
if (bootverbose) {
if_printf(sc->hn_ifp, "link TX ring %d to chan%u\n",
idx, vmbus_chan_id(chan));
}
}
/* Bind this channel to a proper CPU. */
vmbus_chan_cpu_set(chan, (sc->hn_cpu + idx) % mp_ncpus);
/*
* Open this channel
*/
cbr.cbr = rxr->hn_br;
cbr.cbr_paddr = rxr->hn_br_dma.hv_paddr;
cbr.cbr_txsz = NETVSC_DEVICE_RING_BUFFER_SIZE;
cbr.cbr_rxsz = NETVSC_DEVICE_RING_BUFFER_SIZE;
error = vmbus_chan_open_br(chan, &cbr, NULL, 0, hn_chan_callback, rxr);
if (error) {
if_printf(sc->hn_ifp, "open chan%u failed: %d\n",
vmbus_chan_id(chan), error);
rxr->hn_rx_flags &= ~HN_RX_FLAG_ATTACHED;
if (txr != NULL)
txr->hn_tx_flags &= ~HN_TX_FLAG_ATTACHED;
}
return (error);
}
static void
hn_chan_detach(struct hn_softc *sc, struct vmbus_channel *chan)
{
struct hn_rx_ring *rxr;
int idx;
idx = vmbus_chan_subidx(chan);
/*
* Link this channel to RX/TX ring.
*/
KASSERT(idx >= 0 && idx < sc->hn_rx_ring_inuse,
("invalid channel index %d, should > 0 && < %d",
idx, sc->hn_rx_ring_inuse));
rxr = &sc->hn_rx_ring[idx];
KASSERT((rxr->hn_rx_flags & HN_RX_FLAG_ATTACHED),
("RX ring %d is not attached", idx));
rxr->hn_rx_flags &= ~HN_RX_FLAG_ATTACHED;
if (idx < sc->hn_tx_ring_inuse) {
struct hn_tx_ring *txr = &sc->hn_tx_ring[idx];
KASSERT((txr->hn_tx_flags & HN_TX_FLAG_ATTACHED),
("TX ring %d is not attached attached", idx));
txr->hn_tx_flags &= ~HN_TX_FLAG_ATTACHED;
}
/*
* Close this channel.
*
* NOTE:
* Channel closing does _not_ destroy the target channel.
*/
vmbus_chan_close(chan);
}
static int
hn_attach_subchans(struct hn_softc *sc)
{
struct vmbus_channel **subchans;
int subchan_cnt = sc->hn_rx_ring_inuse - 1;
int i, error = 0;
if (subchan_cnt == 0)
return (0);
/* Attach the sub-channels. */
subchans = vmbus_subchan_get(sc->hn_prichan, subchan_cnt);
for (i = 0; i < subchan_cnt; ++i) {
error = hn_chan_attach(sc, subchans[i]);
if (error)
break;
}
vmbus_subchan_rel(subchans, subchan_cnt);
if (error) {
if_printf(sc->hn_ifp, "sub-channels attach failed: %d\n", error);
} else {
if (bootverbose) {
if_printf(sc->hn_ifp, "%d sub-channels attached\n",
subchan_cnt);
}
}
return (error);
}
static void
hn_detach_allchans(struct hn_softc *sc)
{
struct vmbus_channel **subchans;
int subchan_cnt = sc->hn_rx_ring_inuse - 1;
int i;
if (subchan_cnt == 0)
goto back;
/* Detach the sub-channels. */
subchans = vmbus_subchan_get(sc->hn_prichan, subchan_cnt);
for (i = 0; i < subchan_cnt; ++i)
hn_chan_detach(sc, subchans[i]);
vmbus_subchan_rel(subchans, subchan_cnt);
back:
/*
* Detach the primary channel, _after_ all sub-channels
* are detached.
*/
hn_chan_detach(sc, sc->hn_prichan);
/* Wait for sub-channels to be destroyed, if any. */
vmbus_subchan_drain(sc->hn_prichan);
#ifdef INVARIANTS
for (i = 0; i < sc->hn_rx_ring_cnt; ++i) {
KASSERT((sc->hn_rx_ring[i].hn_rx_flags &
HN_RX_FLAG_ATTACHED) == 0,
("%dth RX ring is still attached", i));
}
for (i = 0; i < sc->hn_tx_ring_cnt; ++i) {
KASSERT((sc->hn_tx_ring[i].hn_tx_flags &
HN_TX_FLAG_ATTACHED) == 0,
("%dth TX ring is still attached", i));
}
#endif
}
static int
hn_synth_alloc_subchans(struct hn_softc *sc, int *nsubch)
{
struct vmbus_channel **subchans;
int nchan, rxr_cnt, error;
nchan = *nsubch + 1;
if (nchan == 1) {
/*
* Multiple RX/TX rings are not requested.
*/
*nsubch = 0;
return (0);
}
/*
* Query RSS capabilities, e.g. # of RX rings, and # of indirect
* table entries.
*/
error = hn_rndis_query_rsscaps(sc, &rxr_cnt);
if (error) {
/* No RSS; this is benign. */
*nsubch = 0;
return (0);
}
if (bootverbose) {
if_printf(sc->hn_ifp, "RX rings offered %u, requested %d\n",
rxr_cnt, nchan);
}
if (nchan > rxr_cnt)
nchan = rxr_cnt;
if (nchan == 1) {
if_printf(sc->hn_ifp, "only 1 channel is supported, no vRSS\n");
*nsubch = 0;
return (0);
}
/*
* Allocate sub-channels from NVS.
*/
*nsubch = nchan - 1;
error = hn_nvs_alloc_subchans(sc, nsubch);
if (error || *nsubch == 0) {
/* Failed to allocate sub-channels. */
*nsubch = 0;
return (0);
}
/*
* Wait for all sub-channels to become ready before moving on.
*/
subchans = vmbus_subchan_get(sc->hn_prichan, *nsubch);
vmbus_subchan_rel(subchans, *nsubch);
return (0);
}
static int
hn_synth_attach(struct hn_softc *sc, int mtu)
{
struct ndis_rssprm_toeplitz *rss = &sc->hn_rss;
int error, nsubch, nchan, i;
uint32_t old_caps;
KASSERT((sc->hn_flags & HN_FLAG_SYNTH_ATTACHED) == 0,
("synthetic parts were attached"));
/* Save capabilities for later verification. */
old_caps = sc->hn_caps;
sc->hn_caps = 0;
/*
* Attach the primary channel _before_ attaching NVS and RNDIS.
*/
error = hn_chan_attach(sc, sc->hn_prichan);
if (error)
return (error);
/*
* Attach NVS.
*/
error = hn_nvs_attach(sc, mtu);
if (error)
return (error);
/*
* Attach RNDIS _after_ NVS is attached.
*/
error = hn_rndis_attach(sc, mtu);
if (error)
return (error);
/*
* Make sure capabilities are not changed.
*/
if (device_is_attached(sc->hn_dev) && old_caps != sc->hn_caps) {
if_printf(sc->hn_ifp, "caps mismatch old 0x%08x, new 0x%08x\n",
old_caps, sc->hn_caps);
/* Restore old capabilities and abort. */
sc->hn_caps = old_caps;
return ENXIO;
}
/*
* Allocate sub-channels for multi-TX/RX rings.
*
* NOTE:
* The # of RX rings that can be used is equivalent to the # of
* channels to be requested.
*/
nsubch = sc->hn_rx_ring_cnt - 1;
error = hn_synth_alloc_subchans(sc, &nsubch);
if (error)
return (error);
nchan = nsubch + 1;
if (nchan == 1) {
/* Only the primary channel can be used; done */
goto back;
}
/*
* Configure RSS key and indirect table _after_ all sub-channels
* are allocated.
*/
if ((sc->hn_flags & HN_FLAG_HAS_RSSKEY) == 0) {
/*
* RSS key is not set yet; set it to the default RSS key.
*/
if (bootverbose)
if_printf(sc->hn_ifp, "setup default RSS key\n");
memcpy(rss->rss_key, hn_rss_key_default, sizeof(rss->rss_key));
sc->hn_flags |= HN_FLAG_HAS_RSSKEY;
}
if ((sc->hn_flags & HN_FLAG_HAS_RSSIND) == 0) {
/*
* RSS indirect table is not set yet; set it up in round-
* robin fashion.
*/
if (bootverbose) {
if_printf(sc->hn_ifp, "setup default RSS indirect "
"table\n");
}
/* TODO: Take ndis_rss_caps.ndis_nind into account. */
for (i = 0; i < NDIS_HASH_INDCNT; ++i)
rss->rss_ind[i] = i % nchan;
sc->hn_flags |= HN_FLAG_HAS_RSSIND;
} else {
/*
* # of usable channels may be changed, so we have to
* make sure that all entries in RSS indirect table
* are valid.
*/
hn_rss_ind_fixup(sc, nchan);
}
error = hn_rndis_conf_rss(sc, NDIS_RSS_FLAG_NONE);
if (error) {
/*
* Failed to configure RSS key or indirect table; only
* the primary channel can be used.
*/
nchan = 1;
}
back:
/*
* Set the # of TX/RX rings that could be used according to
* the # of channels that NVS offered.
*/
hn_set_ring_inuse(sc, nchan);
/*
* Attach the sub-channels, if any.
*/
error = hn_attach_subchans(sc);
if (error)
return (error);
sc->hn_flags |= HN_FLAG_SYNTH_ATTACHED;
return (0);
}
/*
* NOTE:
* The interface must have been suspended though hn_suspend(), before
* this function get called.
*/
static void
hn_synth_detach(struct hn_softc *sc)
{
HN_LOCK_ASSERT(sc);
KASSERT(sc->hn_flags & HN_FLAG_SYNTH_ATTACHED,
("synthetic parts were not attached"));
/* Detach the RNDIS first. */
hn_rndis_detach(sc);
/* Detach NVS. */
hn_nvs_detach(sc);
/* Detach all of the channels. */
hn_detach_allchans(sc);
sc->hn_flags &= ~HN_FLAG_SYNTH_ATTACHED;
}
static void
hn_set_ring_inuse(struct hn_softc *sc, int ring_cnt)
{
KASSERT(ring_cnt > 0 && ring_cnt <= sc->hn_rx_ring_cnt,
("invalid ring count %d", ring_cnt));
if (sc->hn_tx_ring_cnt > ring_cnt)
sc->hn_tx_ring_inuse = ring_cnt;
else
sc->hn_tx_ring_inuse = sc->hn_tx_ring_cnt;
sc->hn_rx_ring_inuse = ring_cnt;
if (bootverbose) {
if_printf(sc->hn_ifp, "%d TX ring, %d RX ring\n",
sc->hn_tx_ring_inuse, sc->hn_rx_ring_inuse);
}
}
static void
hn_rx_drain(struct vmbus_channel *chan)
{
while (!vmbus_chan_rx_empty(chan) || !vmbus_chan_tx_empty(chan))
pause("waitch", 1);
vmbus_chan_intr_drain(chan);
}
static void
hn_suspend_data(struct hn_softc *sc)
{
struct vmbus_channel **subch = NULL;
int i, nsubch;
HN_LOCK_ASSERT(sc);
/*
* Suspend TX.
*/
for (i = 0; i < sc->hn_tx_ring_inuse; ++i) {
struct hn_tx_ring *txr = &sc->hn_tx_ring[i];
mtx_lock(&txr->hn_tx_lock);
txr->hn_suspended = 1;
mtx_unlock(&txr->hn_tx_lock);
/* No one is able send more packets now. */
/* Wait for all pending sends to finish. */
while (hn_tx_ring_pending(txr))
pause("hnwtx", 1 /* 1 tick */);
taskqueue_drain(txr->hn_tx_taskq, &txr->hn_tx_task);
taskqueue_drain(txr->hn_tx_taskq, &txr->hn_txeof_task);
}
/*
* Disable RX by clearing RX filter.
*/
hn_rndis_set_rxfilter(sc, 0);
+ sc->hn_rx_filter = 0;
/*
* Give RNDIS enough time to flush all pending data packets.
*/
pause("waitrx", (200 * hz) / 1000);
/*
* Drain RX/TX bufrings and interrupts.
*/
nsubch = sc->hn_rx_ring_inuse - 1;
if (nsubch > 0)
subch = vmbus_subchan_get(sc->hn_prichan, nsubch);
if (subch != NULL) {
for (i = 0; i < nsubch; ++i)
hn_rx_drain(subch[i]);
}
hn_rx_drain(sc->hn_prichan);
if (subch != NULL)
vmbus_subchan_rel(subch, nsubch);
}
static void
hn_suspend_mgmt_taskfunc(void *xsc, int pending __unused)
{
((struct hn_softc *)xsc)->hn_mgmt_taskq = NULL;
}
static void
hn_suspend_mgmt(struct hn_softc *sc)
{
struct task task;
HN_LOCK_ASSERT(sc);
/*
* Make sure that hn_mgmt_taskq0 can nolonger be accessed
* through hn_mgmt_taskq.
*/
TASK_INIT(&task, 0, hn_suspend_mgmt_taskfunc, sc);
vmbus_chan_run_task(sc->hn_prichan, &task);
/*
* Make sure that all pending management tasks are completed.
*/
taskqueue_drain(sc->hn_mgmt_taskq0, &sc->hn_netchg_init);
taskqueue_drain_timeout(sc->hn_mgmt_taskq0, &sc->hn_netchg_status);
taskqueue_drain_all(sc->hn_mgmt_taskq0);
}
static void
hn_suspend(struct hn_softc *sc)
{
if (sc->hn_ifp->if_drv_flags & IFF_DRV_RUNNING)
hn_suspend_data(sc);
hn_suspend_mgmt(sc);
}
static void
hn_tx_resume(struct hn_softc *sc, int tx_ring_cnt)
{
int i;
KASSERT(tx_ring_cnt <= sc->hn_tx_ring_cnt,
("invalid TX ring count %d", tx_ring_cnt));
for (i = 0; i < tx_ring_cnt; ++i) {
struct hn_tx_ring *txr = &sc->hn_tx_ring[i];
mtx_lock(&txr->hn_tx_lock);
txr->hn_suspended = 0;
mtx_unlock(&txr->hn_tx_lock);
}
}
static void
hn_resume_data(struct hn_softc *sc)
{
int i;
HN_LOCK_ASSERT(sc);
/*
* Re-enable RX.
- * TODO: add hn_rx_filter.
*/
- hn_rndis_set_rxfilter(sc, NDIS_PACKET_TYPE_PROMISCUOUS);
+ hn_set_rxfilter(sc);
/*
* Make sure to clear suspend status on "all" TX rings,
* since hn_tx_ring_inuse can be changed after
* hn_suspend_data().
*/
hn_tx_resume(sc, sc->hn_tx_ring_cnt);
if (!hn_use_if_start) {
/*
* Flush unused drbrs, since hn_tx_ring_inuse may be
* reduced.
*/
for (i = sc->hn_tx_ring_inuse; i < sc->hn_tx_ring_cnt; ++i)
hn_tx_ring_qflush(&sc->hn_tx_ring[i]);
}
/*
* Kick start TX.
*/
for (i = 0; i < sc->hn_tx_ring_inuse; ++i) {
struct hn_tx_ring *txr = &sc->hn_tx_ring[i];
/*
* Use txeof task, so that any pending oactive can be
* cleared properly.
*/
taskqueue_enqueue(txr->hn_tx_taskq, &txr->hn_txeof_task);
}
}
static void
hn_resume_mgmt(struct hn_softc *sc)
{
sc->hn_mgmt_taskq = sc->hn_mgmt_taskq0;
/*
* Kick off network change detection, if it was pending.
* If no network change was pending, start link status
* checks, which is more lightweight than network change
* detection.
*/
if (sc->hn_link_flags & HN_LINK_FLAG_NETCHG)
hn_network_change(sc);
else
hn_link_status_update(sc);
}
static void
hn_resume(struct hn_softc *sc)
{
if (sc->hn_ifp->if_drv_flags & IFF_DRV_RUNNING)
hn_resume_data(sc);
hn_resume_mgmt(sc);
}
static void
hn_nvs_handle_notify(struct hn_softc *sc, const struct vmbus_chanpkt_hdr *pkt)
{
const struct hn_nvs_hdr *hdr;
if (VMBUS_CHANPKT_DATALEN(pkt) < sizeof(*hdr)) {
if_printf(sc->hn_ifp, "invalid nvs notify\n");
return;
}
hdr = VMBUS_CHANPKT_CONST_DATA(pkt);
if (hdr->nvs_type == HN_NVS_TYPE_TXTBL_NOTE) {
/* Useless; ignore */
return;
}
if_printf(sc->hn_ifp, "got notify, nvs type %u\n", hdr->nvs_type);
}
static void
hn_nvs_handle_comp(struct hn_softc *sc, struct vmbus_channel *chan,
const struct vmbus_chanpkt_hdr *pkt)
{
struct hn_send_ctx *sndc;
sndc = (struct hn_send_ctx *)(uintptr_t)pkt->cph_xactid;
sndc->hn_cb(sndc, sc, chan, VMBUS_CHANPKT_CONST_DATA(pkt),
VMBUS_CHANPKT_DATALEN(pkt));
/*
* NOTE:
* 'sndc' CAN NOT be accessed anymore, since it can be freed by
* its callback.
*/
}
static void
hn_nvs_handle_rxbuf(struct hn_softc *sc, struct hn_rx_ring *rxr,
struct vmbus_channel *chan, const struct vmbus_chanpkt_hdr *pkthdr)
{
const struct vmbus_chanpkt_rxbuf *pkt;
const struct hn_nvs_hdr *nvs_hdr;
int count, i, hlen;
if (__predict_false(VMBUS_CHANPKT_DATALEN(pkthdr) < sizeof(*nvs_hdr))) {
if_printf(rxr->hn_ifp, "invalid nvs RNDIS\n");
return;
}
nvs_hdr = VMBUS_CHANPKT_CONST_DATA(pkthdr);
/* Make sure that this is a RNDIS message. */
if (__predict_false(nvs_hdr->nvs_type != HN_NVS_TYPE_RNDIS)) {
if_printf(rxr->hn_ifp, "nvs type %u, not RNDIS\n",
nvs_hdr->nvs_type);
return;
}
hlen = VMBUS_CHANPKT_GETLEN(pkthdr->cph_hlen);
if (__predict_false(hlen < sizeof(*pkt))) {
if_printf(rxr->hn_ifp, "invalid rxbuf chanpkt\n");
return;
}
pkt = (const struct vmbus_chanpkt_rxbuf *)pkthdr;
if (__predict_false(pkt->cp_rxbuf_id != HN_NVS_RXBUF_SIG)) {
if_printf(rxr->hn_ifp, "invalid rxbuf_id 0x%08x\n",
pkt->cp_rxbuf_id);
return;
}
count = pkt->cp_rxbuf_cnt;
if (__predict_false(hlen <
__offsetof(struct vmbus_chanpkt_rxbuf, cp_rxbuf[count]))) {
if_printf(rxr->hn_ifp, "invalid rxbuf_cnt %d\n", count);
return;
}
/* Each range represents 1 RNDIS pkt that contains 1 Ethernet frame */
for (i = 0; i < count; ++i) {
int ofs, len;
ofs = pkt->cp_rxbuf[i].rb_ofs;
len = pkt->cp_rxbuf[i].rb_len;
if (__predict_false(ofs + len > NETVSC_RECEIVE_BUFFER_SIZE)) {
if_printf(rxr->hn_ifp, "%dth RNDIS msg overflow rxbuf, "
"ofs %d, len %d\n", i, ofs, len);
continue;
}
hv_rf_on_receive(sc, rxr, rxr->hn_rxbuf + ofs, len);
}
/*
* Moved completion call back here so that all received
* messages (not just data messages) will trigger a response
* message back to the host.
*/
hn_nvs_ack_rxbuf(chan, pkt->cp_hdr.cph_xactid);
}
/*
* Net VSC on receive completion
*
* Send a receive completion packet to RNDIS device (ie NetVsp)
*/
static void
hn_nvs_ack_rxbuf(struct vmbus_channel *chan, uint64_t tid)
{
struct hn_nvs_rndis_ack ack;
int retries = 0;
int ret = 0;
ack.nvs_type = HN_NVS_TYPE_RNDIS_ACK;
ack.nvs_status = HN_NVS_STATUS_OK;
retry_send_cmplt:
/* Send the completion */
ret = vmbus_chan_send(chan, VMBUS_CHANPKT_TYPE_COMP,
VMBUS_CHANPKT_FLAG_NONE, &ack, sizeof(ack), tid);
if (ret == 0) {
/* success */
/* no-op */
} else if (ret == EAGAIN) {
/* no more room... wait a bit and attempt to retry 3 times */
retries++;
if (retries < 4) {
DELAY(100);
goto retry_send_cmplt;
}
}
}
static void
hn_chan_callback(struct vmbus_channel *chan, void *xrxr)
{
struct hn_rx_ring *rxr = xrxr;
struct hn_softc *sc = rxr->hn_ifp->if_softc;
void *buffer;
int bufferlen = NETVSC_PACKET_SIZE;
buffer = rxr->hn_rdbuf;
do {
struct vmbus_chanpkt_hdr *pkt = buffer;
uint32_t bytes_rxed;
int ret;
bytes_rxed = bufferlen;
ret = vmbus_chan_recv_pkt(chan, pkt, &bytes_rxed);
if (ret == 0) {
switch (pkt->cph_type) {
case VMBUS_CHANPKT_TYPE_COMP:
hn_nvs_handle_comp(sc, chan, pkt);
break;
case VMBUS_CHANPKT_TYPE_RXBUF:
hn_nvs_handle_rxbuf(sc, rxr, chan, pkt);
break;
case VMBUS_CHANPKT_TYPE_INBAND:
hn_nvs_handle_notify(sc, pkt);
break;
default:
if_printf(rxr->hn_ifp,
"unknown chan pkt %u\n",
pkt->cph_type);
break;
}
} else if (ret == ENOBUFS) {
/* Handle large packet */
if (bufferlen > NETVSC_PACKET_SIZE) {
free(buffer, M_NETVSC);
buffer = NULL;
}
/* alloc new buffer */
buffer = malloc(bytes_rxed, M_NETVSC, M_NOWAIT);
if (buffer == NULL) {
if_printf(rxr->hn_ifp,
"hv_cb malloc buffer failed, len=%u\n",
bytes_rxed);
bufferlen = 0;
break;
}
bufferlen = bytes_rxed;
} else {
/* No more packets */
break;
}
} while (1);
if (bufferlen > NETVSC_PACKET_SIZE)
free(buffer, M_NETVSC);
hv_rf_channel_rollup(rxr, rxr->hn_txr);
}
static void
hn_tx_taskq_create(void *arg __unused)
{
if (!hn_share_tx_taskq)
return;
hn_tx_taskq = taskqueue_create("hn_tx", M_WAITOK,
taskqueue_thread_enqueue, &hn_tx_taskq);
if (hn_bind_tx_taskq >= 0) {
int cpu = hn_bind_tx_taskq;
cpuset_t cpu_set;
if (cpu > mp_ncpus - 1)
cpu = mp_ncpus - 1;
CPU_SETOF(cpu, &cpu_set);
taskqueue_start_threads_cpuset(&hn_tx_taskq, 1, PI_NET,
&cpu_set, "hn tx");
} else {
taskqueue_start_threads(&hn_tx_taskq, 1, PI_NET, "hn tx");
}
}
SYSINIT(hn_txtq_create, SI_SUB_DRIVERS, SI_ORDER_FIRST,
hn_tx_taskq_create, NULL);
static void
hn_tx_taskq_destroy(void *arg __unused)
{
if (hn_tx_taskq != NULL)
taskqueue_free(hn_tx_taskq);
}
SYSUNINIT(hn_txtq_destroy, SI_SUB_DRIVERS, SI_ORDER_FIRST,
hn_tx_taskq_destroy, NULL);
static device_method_t netvsc_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, netvsc_probe),
DEVMETHOD(device_attach, netvsc_attach),
DEVMETHOD(device_detach, netvsc_detach),
DEVMETHOD(device_shutdown, netvsc_shutdown),
{ 0, 0 }
};
static driver_t netvsc_driver = {
NETVSC_DEVNAME,
netvsc_methods,
sizeof(struct hn_softc)
};
static devclass_t netvsc_devclass;
DRIVER_MODULE(hn, vmbus, netvsc_driver, netvsc_devclass, 0, 0);
MODULE_VERSION(hn, 1);
MODULE_DEPEND(hn, vmbus, 1, 1, 1);
diff --git a/sys/net/rndis.h b/sys/net/rndis.h
index 95edb1c5d7e4..12385e35ca24 100644
--- a/sys/net/rndis.h
+++ b/sys/net/rndis.h
@@ -1,373 +1,381 @@
/* $FreeBSD$ */
/* $OpenBSD: if_urndisreg.h,v 1.19 2013/11/21 14:08:05 mpi Exp $ */
/*
* Copyright (c) 2010 Jonathan Armani <armani@openbsd.org>
* Copyright (c) 2010 Fabien Romano <fabien@openbsd.org>
* Copyright (c) 2010 Michael Knudsen <mk@openbsd.org>
* All rights reserved.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _NET_RNDIS_H_
#define _NET_RNDIS_H_
/* Canonical major/minor version as of 22th Aug. 2016. */
#define RNDIS_VERSION_MAJOR 0x00000001
#define RNDIS_VERSION_MINOR 0x00000000
#define RNDIS_STATUS_SUCCESS 0x00000000L
#define RNDIS_STATUS_PENDING 0x00000103L
#define RNDIS_STATUS_MEDIA_CONNECT 0x4001000BL
#define RNDIS_STATUS_MEDIA_DISCONNECT 0x4001000CL
#define RNDIS_STATUS_NETWORK_CHANGE 0x40010018L
#define RNDIS_STATUS_TASK_OFFLOAD_CURRENT_CONFIG 0x40020006L
#define RNDIS_STATUS_BUFFER_OVERFLOW 0x80000005L
#define RNDIS_STATUS_FAILURE 0xC0000001L
#define RNDIS_STATUS_NOT_SUPPORTED 0xC00000BBL
#define RNDIS_STATUS_RESOURCES 0xC000009AL
#define RNDIS_STATUS_INVALID_DATA 0xC0010015L
#define OID_GEN_SUPPORTED_LIST 0x00010101
#define OID_GEN_HARDWARE_STATUS 0x00010102
#define OID_GEN_MEDIA_SUPPORTED 0x00010103
#define OID_GEN_MEDIA_IN_USE 0x00010104
#define OID_GEN_MAXIMUM_LOOKAHEAD 0x00010105
#define OID_GEN_MAXIMUM_FRAME_SIZE 0x00010106
#define OID_GEN_LINK_SPEED 0x00010107
#define OID_GEN_TRANSMIT_BUFFER_SPACE 0x00010108
#define OID_GEN_RECEIVE_BUFFER_SPACE 0x00010109
#define OID_GEN_TRANSMIT_BLOCK_SIZE 0x0001010A
#define OID_GEN_RECEIVE_BLOCK_SIZE 0x0001010B
#define OID_GEN_VENDOR_ID 0x0001010C
#define OID_GEN_VENDOR_DESCRIPTION 0x0001010D
#define OID_GEN_CURRENT_PACKET_FILTER 0x0001010E
#define OID_GEN_CURRENT_LOOKAHEAD 0x0001010F
#define OID_GEN_DRIVER_VERSION 0x00010110
#define OID_GEN_MAXIMUM_TOTAL_SIZE 0x00010111
#define OID_GEN_PROTOCOL_OPTIONS 0x00010112
#define OID_GEN_MAC_OPTIONS 0x00010113
#define OID_GEN_MEDIA_CONNECT_STATUS 0x00010114
#define OID_GEN_MAXIMUM_SEND_PACKETS 0x00010115
#define OID_GEN_VENDOR_DRIVER_VERSION 0x00010116
#define OID_GEN_SUPPORTED_GUIDS 0x00010117
#define OID_GEN_NETWORK_LAYER_ADDRESSES 0x00010118
#define OID_GEN_TRANSPORT_HEADER_OFFSET 0x00010119
#define OID_GEN_RECEIVE_SCALE_CAPABILITIES 0x00010203
#define OID_GEN_RECEIVE_SCALE_PARAMETERS 0x00010204
#define OID_GEN_MACHINE_NAME 0x0001021A
#define OID_GEN_RNDIS_CONFIG_PARAMETER 0x0001021B
#define OID_GEN_VLAN_ID 0x0001021C
#define OID_802_3_PERMANENT_ADDRESS 0x01010101
#define OID_802_3_CURRENT_ADDRESS 0x01010102
#define OID_802_3_MULTICAST_LIST 0x01010103
#define OID_802_3_MAXIMUM_LIST_SIZE 0x01010104
#define OID_802_3_MAC_OPTIONS 0x01010105
#define OID_802_3_RCV_ERROR_ALIGNMENT 0x01020101
#define OID_802_3_XMIT_ONE_COLLISION 0x01020102
#define OID_802_3_XMIT_MORE_COLLISIONS 0x01020103
#define OID_802_3_XMIT_DEFERRED 0x01020201
#define OID_802_3_XMIT_MAX_COLLISIONS 0x01020202
#define OID_802_3_RCV_OVERRUN 0x01020203
#define OID_802_3_XMIT_UNDERRUN 0x01020204
#define OID_802_3_XMIT_HEARTBEAT_FAILURE 0x01020205
#define OID_802_3_XMIT_TIMES_CRS_LOST 0x01020206
#define OID_802_3_XMIT_LATE_COLLISIONS 0x01020207
#define OID_TCP_OFFLOAD_PARAMETERS 0xFC01020C
#define OID_TCP_OFFLOAD_HARDWARE_CAPABILITIES 0xFC01020D
#define RNDIS_MEDIUM_802_3 0x00000000
/* Device flags */
#define RNDIS_DF_CONNECTIONLESS 0x00000001
#define RNDIS_DF_CONNECTION_ORIENTED 0x00000002
/*
* Common RNDIS message header.
*/
struct rndis_msghdr {
uint32_t rm_type;
uint32_t rm_len;
};
/*
* RNDIS data message
*/
#define REMOTE_NDIS_PACKET_MSG 0x00000001
struct rndis_packet_msg {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_dataoffset;
uint32_t rm_datalen;
uint32_t rm_oobdataoffset;
uint32_t rm_oobdatalen;
uint32_t rm_oobdataelements;
uint32_t rm_pktinfooffset;
uint32_t rm_pktinfolen;
uint32_t rm_vchandle;
uint32_t rm_reserved;
};
/*
* Minimum value for rm_dataoffset, rm_oobdataoffset, and
* rm_pktinfooffset.
*/
#define RNDIS_PACKET_MSG_OFFSET_MIN \
(sizeof(struct rndis_packet_msg) - \
__offsetof(struct rndis_packet_msg, rm_dataoffset))
/* Offset from the beginning of rndis_packet_msg. */
#define RNDIS_PACKET_MSG_OFFSET_ABS(ofs) \
((ofs) + __offsetof(struct rndis_packet_msg, rm_dataoffset))
#define RNDIS_PACKET_MSG_OFFSET_ALIGN 4
#define RNDIS_PACKET_MSG_OFFSET_ALIGNMASK \
(RNDIS_PACKET_MSG_OFFSET_ALIGN - 1)
/* Per-packet-info for RNDIS data message */
struct rndis_pktinfo {
uint32_t rm_size;
uint32_t rm_type; /* NDIS_PKTINFO_TYPE_ */
uint32_t rm_pktinfooffset;
uint8_t rm_data[];
};
#define RNDIS_PKTINFO_OFFSET \
__offsetof(struct rndis_pktinfo, rm_data[0])
#define RNDIS_PKTINFO_SIZE_ALIGN 4
#define RNDIS_PKTINFO_SIZE_ALIGNMASK (RNDIS_PKTINFO_SIZE_ALIGN - 1)
#define NDIS_PKTINFO_TYPE_CSUM 0
#define NDIS_PKTINFO_TYPE_IPSEC 1
#define NDIS_PKTINFO_TYPE_LSO 2
#define NDIS_PKTINFO_TYPE_CLASSIFY 3
/* reserved 4 */
#define NDIS_PKTINFO_TYPE_SGLIST 5
#define NDIS_PKTINFO_TYPE_VLAN 6
#define NDIS_PKTINFO_TYPE_ORIG 7
#define NDIS_PKTINFO_TYPE_PKT_CANCELID 8
#define NDIS_PKTINFO_TYPE_ORIG_NBLIST 9
#define NDIS_PKTINFO_TYPE_CACHE_NBLIST 10
#define NDIS_PKTINFO_TYPE_PKT_PAD 11
/*
* RNDIS control messages
*/
/*
* Common header for RNDIS completion messages.
*
* NOTE: It does not apply to REMOTE_NDIS_RESET_CMPLT.
*/
struct rndis_comp_hdr {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
};
/* Initialize the device. */
#define REMOTE_NDIS_INITIALIZE_MSG 0x00000002
#define REMOTE_NDIS_INITIALIZE_CMPLT 0x80000002
struct rndis_init_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_ver_major;
uint32_t rm_ver_minor;
uint32_t rm_max_xfersz;
};
struct rndis_init_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
uint32_t rm_ver_major;
uint32_t rm_ver_minor;
uint32_t rm_devflags;
uint32_t rm_medium;
uint32_t rm_pktmaxcnt;
uint32_t rm_pktmaxsz;
uint32_t rm_align;
uint32_t rm_aflistoffset;
uint32_t rm_aflistsz;
};
#define RNDIS_INIT_COMP_SIZE_MIN \
__offsetof(struct rndis_init_comp, rm_aflistsz)
/* Halt the device. No response sent. */
#define REMOTE_NDIS_HALT_MSG 0x00000003
struct rndis_halt_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
};
/* Send a query object. */
#define REMOTE_NDIS_QUERY_MSG 0x00000004
#define REMOTE_NDIS_QUERY_CMPLT 0x80000004
struct rndis_query_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_oid;
uint32_t rm_infobuflen;
uint32_t rm_infobufoffset;
uint32_t rm_devicevchdl;
};
#define RNDIS_QUERY_REQ_INFOBUFOFFSET \
(sizeof(struct rndis_query_req) - \
__offsetof(struct rndis_query_req, rm_rid))
struct rndis_query_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
uint32_t rm_infobuflen;
uint32_t rm_infobufoffset;
};
/* infobuf offset from the beginning of rndis_query_comp. */
#define RNDIS_QUERY_COMP_INFOBUFOFFSET_ABS(ofs) \
((ofs) + __offsetof(struct rndis_query_req, rm_rid))
/* Send a set object request. */
#define REMOTE_NDIS_SET_MSG 0x00000005
#define REMOTE_NDIS_SET_CMPLT 0x80000005
struct rndis_set_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_oid;
uint32_t rm_infobuflen;
uint32_t rm_infobufoffset;
uint32_t rm_devicevchdl;
};
#define RNDIS_SET_REQ_INFOBUFOFFSET \
(sizeof(struct rndis_set_req) - \
__offsetof(struct rndis_set_req, rm_rid))
struct rndis_set_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
};
/*
* Parameter used by OID_GEN_RNDIS_CONFIG_PARAMETER.
*/
#define REMOTE_NDIS_SET_PARAM_NUMERIC 0x00000000
#define REMOTE_NDIS_SET_PARAM_STRING 0x00000002
struct rndis_set_parameter {
uint32_t rm_nameoffset;
uint32_t rm_namelen;
uint32_t rm_type;
uint32_t rm_valueoffset;
uint32_t rm_valuelen;
};
/* Perform a soft reset on the device. */
#define REMOTE_NDIS_RESET_MSG 0x00000006
#define REMOTE_NDIS_RESET_CMPLT 0x80000006
struct rndis_reset_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
};
struct rndis_reset_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_status;
uint32_t rm_adrreset;
};
/* 802.3 link-state or undefined message error. Sent by device. */
#define REMOTE_NDIS_INDICATE_STATUS_MSG 0x00000007
struct rndis_status_msg {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_status;
uint32_t rm_stbuflen;
uint32_t rm_stbufoffset;
/* rndis_diag_info */
};
/* stbuf offset from the beginning of rndis_status_msg. */
#define RNDIS_STBUFOFFSET_ABS(ofs) \
((ofs) + __offsetof(struct rndis_status_msg, rm_status))
/*
* Immediately after rndis_status_msg.rm_stbufoffset, if a control
* message is malformatted, or a packet message contains inappropriate
* content.
*/
struct rndis_diag_info {
uint32_t rm_diagstatus;
uint32_t rm_erroffset;
};
/* Keepalive messsage. May be sent by device. */
#define REMOTE_NDIS_KEEPALIVE_MSG 0x00000008
#define REMOTE_NDIS_KEEPALIVE_CMPLT 0x80000008
struct rndis_keepalive_req {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
};
struct rndis_keepalive_comp {
uint32_t rm_type;
uint32_t rm_len;
uint32_t rm_rid;
uint32_t rm_status;
};
-/* packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
+/* Packet filter bits used by OID_GEN_CURRENT_PACKET_FILTER */
#define NDIS_PACKET_TYPE_DIRECTED 0x00000001
#define NDIS_PACKET_TYPE_MULTICAST 0x00000002
#define NDIS_PACKET_TYPE_ALL_MULTICAST 0x00000004
#define NDIS_PACKET_TYPE_BROADCAST 0x00000008
#define NDIS_PACKET_TYPE_SOURCE_ROUTING 0x00000010
#define NDIS_PACKET_TYPE_PROMISCUOUS 0x00000020
#define NDIS_PACKET_TYPE_SMT 0x00000040
#define NDIS_PACKET_TYPE_ALL_LOCAL 0x00000080
#define NDIS_PACKET_TYPE_GROUP 0x00001000
#define NDIS_PACKET_TYPE_ALL_FUNCTIONAL 0x00002000
#define NDIS_PACKET_TYPE_FUNCTIONAL 0x00004000
#define NDIS_PACKET_TYPE_MAC_FRAME 0x00008000
+/*
+ * Packet filter description for use with printf(9) %b identifier.
+ */
+#define NDIS_PACKET_TYPES \
+ "\20\1DIRECT\2MULTICAST\3ALLMULTI\4BROADCAST" \
+ "\5SRCROUTE\6PROMISC\7SMT\10ALLLOCAL" \
+ "\11GROUP\12ALLFUNC\13FUNC\14MACFRAME"
+
/* RNDIS offsets */
#define RNDIS_HEADER_OFFSET ((uint32_t)sizeof(struct rndis_msghdr))
#define RNDIS_DATA_OFFSET \
((uint32_t)(sizeof(struct rndis_packet_msg) - RNDIS_HEADER_OFFSET))
#endif /* !_NET_RNDIS_H_ */

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