svn commit: r307989 - head/sys/dev/hyperv/netvsc
Sepherosa Ziehau
sephe at FreeBSD.org
Thu Oct 27 05:13:02 UTC 2016
Author: sephe
Date: Thu Oct 27 05:13:00 2016
New Revision: 307989
URL: https://svnweb.freebsd.org/changeset/base/307989
Log:
hyperv/hn: Move hn_softc to if_hnvar.h
While I'm here, use consistent macro names.
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D8345
Modified:
head/sys/dev/hyperv/netvsc/hv_net_vsc.c
head/sys/dev/hyperv/netvsc/hv_net_vsc.h
head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
head/sys/dev/hyperv/netvsc/if_hnvar.h
Modified: head/sys/dev/hyperv/netvsc/hv_net_vsc.c
==============================================================================
--- head/sys/dev/hyperv/netvsc/hv_net_vsc.c Thu Oct 27 05:04:54 2016 (r307988)
+++ head/sys/dev/hyperv/netvsc/hv_net_vsc.c Thu Oct 27 05:13:00 2016 (r307989)
@@ -138,9 +138,9 @@ hn_nvs_conn_rxbuf(struct hn_softc *sc)
* Limit RXBUF size for old NVS.
*/
if (sc->hn_nvs_ver <= HN_NVS_VERSION_2)
- rxbuf_size = NETVSC_RECEIVE_BUFFER_SIZE_LEGACY;
+ rxbuf_size = HN_RXBUF_SIZE_COMPAT;
else
- rxbuf_size = NETVSC_RECEIVE_BUFFER_SIZE;
+ rxbuf_size = HN_RXBUF_SIZE;
/*
* Connect the RXBUF GPADL to the primary channel.
@@ -219,8 +219,7 @@ hn_nvs_conn_chim(struct hn_softc *sc)
* Sub-channels just share this chimney sending buffer.
*/
error = vmbus_chan_gpadl_connect(sc->hn_prichan,
- sc->hn_chim_dma.hv_paddr, NETVSC_SEND_BUFFER_SIZE,
- &sc->hn_chim_gpadl);
+ sc->hn_chim_dma.hv_paddr, HN_CHIM_SIZE, &sc->hn_chim_gpadl);
if (error) {
if_printf(sc->hn_ifp, "chim gpadl conn failed: %d\n", error);
goto cleanup;
@@ -267,8 +266,8 @@ hn_nvs_conn_chim(struct hn_softc *sc)
}
sc->hn_chim_szmax = sectsz;
- sc->hn_chim_cnt = NETVSC_SEND_BUFFER_SIZE / sc->hn_chim_szmax;
- if (NETVSC_SEND_BUFFER_SIZE % sc->hn_chim_szmax != 0) {
+ sc->hn_chim_cnt = HN_CHIM_SIZE / sc->hn_chim_szmax;
+ if (HN_CHIM_SIZE % sc->hn_chim_szmax != 0) {
if_printf(sc->hn_ifp, "chimney sending sections are "
"not properly aligned\n");
}
Modified: head/sys/dev/hyperv/netvsc/hv_net_vsc.h
==============================================================================
--- head/sys/dev/hyperv/netvsc/hv_net_vsc.h Thu Oct 27 05:04:54 2016 (r307988)
+++ head/sys/dev/hyperv/netvsc/hv_net_vsc.h Thu Oct 27 05:13:00 2016 (r307989)
@@ -28,13 +28,6 @@
* $FreeBSD$
*/
-/*
- * 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__
@@ -64,224 +57,5 @@
#include <dev/hyperv/netvsc/ndis.h>
-#define HN_USE_TXDESC_BUFRING
-
-/*
- * 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;
-
- int hn_rss_ind_size;
- uint32_t hn_rss_hash; /* NDIS_HASH_ */
- 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
-
-/* Capability description for use with printf(9) %b identifier. */
-#define HN_CAP_BITS \
- "\020\1VLAN\2MTU\3IPCS\4TCP4CS\5TCP6CS" \
- "\6UDP4CS\7UDP6CS\10TSO4\11TSO6\12HASHVAL"
-
-#define HN_LINK_FLAG_LINKUP 0x0001
-#define HN_LINK_FLAG_NETCHG 0x0002
-
#endif /* __HV_NET_VSC_H__ */
Modified: head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c
==============================================================================
--- head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Thu Oct 27 05:04:54 2016 (r307988)
+++ head/sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c Thu Oct 27 05:13:00 2016 (r307989)
@@ -73,6 +73,7 @@ __FBSDID("$FreeBSD$");
#include <sys/smp.h>
#include <sys/sysctl.h>
#include <sys/buf_ring.h>
+#include <sys/taskqueue.h>
#include <net/if.h>
#include <net/if_arp.h>
@@ -91,6 +92,7 @@ __FBSDID("$FreeBSD$");
#include <netinet/ip.h>
#include <netinet/if_ether.h>
#include <netinet/tcp.h>
+#include <netinet/tcp_lro.h>
#include <netinet/udp.h>
#include <netinet/ip6.h>
@@ -116,11 +118,14 @@ __FBSDID("$FreeBSD$");
#include <dev/hyperv/include/hyperv.h>
#include <dev/hyperv/include/hyperv_busdma.h>
+#include <dev/hyperv/include/vmbus.h>
#include <dev/hyperv/include/vmbus_xact.h>
+#include <dev/hyperv/netvsc/ndis.h>
+#include <dev/hyperv/netvsc/if_hnreg.h>
+#include <dev/hyperv/netvsc/if_hnvar.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"
@@ -155,7 +160,7 @@ __FBSDID("$FreeBSD$");
#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_TX_DATA_SEGCNT_MAX (HN_GPACNT_MAX - 1)
#define HN_DIRECT_TX_SIZE_DEF 128
@@ -1855,7 +1860,7 @@ hn_ioctl(struct ifnet *ifp, u_long cmd,
switch (cmd) {
case SIOCSIFMTU:
- if (ifr->ifr_mtu > NETVSC_MAX_CONFIGURABLE_MTU) {
+ if (ifr->ifr_mtu > HN_MTU_MAX) {
error = EINVAL;
break;
}
@@ -2631,7 +2636,7 @@ hn_create_rx_data(struct hn_softc *sc, i
* 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,
+ PAGE_SIZE, 0, HN_RXBUF_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");
@@ -2665,9 +2670,7 @@ hn_create_rx_data(struct hn_softc *sc, 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,
+ PAGE_SIZE, 0, HN_TXBR_SIZE + HN_RXBR_SIZE,
&rxr->hn_br_dma, BUS_DMA_WAITOK);
if (rxr->hn_br == NULL) {
device_printf(dev, "allocate bufring failed\n");
@@ -2683,7 +2686,7 @@ hn_create_rx_data(struct hn_softc *sc, i
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_DEVBUF, M_WAITOK);
+ rxr->hn_pktbuf = malloc(HN_PKTBUF_LEN, M_DEVBUF, M_WAITOK);
rxr->hn_rx_idx = i;
rxr->hn_rxbuf = sc->hn_rxbuf;
@@ -2830,7 +2833,7 @@ hn_destroy_rx_data(struct hn_softc *sc)
#if defined(INET) || defined(INET6)
tcp_lro_free(&rxr->hn_lro);
#endif
- free(rxr->hn_rdbuf, M_DEVBUF);
+ free(rxr->hn_pktbuf, M_DEVBUF);
}
free(sc->hn_rx_ring, M_DEVBUF);
sc->hn_rx_ring = NULL;
@@ -3090,7 +3093,7 @@ hn_create_tx_data(struct hn_softc *sc, i
* 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,
+ PAGE_SIZE, 0, HN_CHIM_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");
@@ -3508,8 +3511,8 @@ hn_chan_attach(struct hn_softc *sc, stru
*/
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;
+ cbr.cbr_txsz = HN_TXBR_SIZE;
+ cbr.cbr_rxsz = HN_RXBR_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",
@@ -4126,7 +4129,7 @@ hn_nvs_handle_rxbuf(struct hn_softc *sc,
ofs = pkt->cp_rxbuf[i].rb_ofs;
len = pkt->cp_rxbuf[i].rb_len;
- if (__predict_false(ofs + len > NETVSC_RECEIVE_BUFFER_SIZE)) {
+ if (__predict_false(ofs + len > HN_RXBUF_SIZE)) {
if_printf(rxr->hn_ifp, "%dth RNDIS msg overflow rxbuf, "
"ofs %d, len %d\n", i, ofs, len);
continue;
@@ -4181,9 +4184,9 @@ hn_chan_callback(struct vmbus_channel *c
struct hn_rx_ring *rxr = xrxr;
struct hn_softc *sc = rxr->hn_ifp->if_softc;
void *buffer;
- int bufferlen = NETVSC_PACKET_SIZE;
+ int bufferlen = HN_PKTBUF_LEN;
- buffer = rxr->hn_rdbuf;
+ buffer = rxr->hn_pktbuf;
do {
struct vmbus_chanpkt_hdr *pkt = buffer;
uint32_t bytes_rxed;
@@ -4210,7 +4213,7 @@ hn_chan_callback(struct vmbus_channel *c
}
} else if (ret == ENOBUFS) {
/* Handle large packet */
- if (bufferlen > NETVSC_PACKET_SIZE) {
+ if (bufferlen > HN_PKTBUF_LEN) {
free(buffer, M_DEVBUF);
buffer = NULL;
}
@@ -4231,7 +4234,7 @@ hn_chan_callback(struct vmbus_channel *c
}
} while (1);
- if (bufferlen > NETVSC_PACKET_SIZE)
+ if (bufferlen > HN_PKTBUF_LEN)
free(buffer, M_DEVBUF);
hv_rf_channel_rollup(rxr, rxr->hn_txr);
Modified: head/sys/dev/hyperv/netvsc/if_hnvar.h
==============================================================================
--- head/sys/dev/hyperv/netvsc/if_hnvar.h Thu Oct 27 05:04:54 2016 (r307988)
+++ head/sys/dev/hyperv/netvsc/if_hnvar.h Thu Oct 27 05:13:00 2016 (r307989)
@@ -29,14 +29,30 @@
#ifndef _IF_HNVAR_H_
#define _IF_HNVAR_H_
-#include <sys/param.h>
+#define HN_USE_TXDESC_BUFRING
-#include <dev/hyperv/include/vmbus.h>
-#include <dev/hyperv/netvsc/if_hnreg.h>
+#define HN_CHIM_SIZE (15 * 1024 * 1024)
-struct hn_softc;
+#define HN_RXBUF_SIZE (16 * 1024 * 1024)
+#define HN_RXBUF_SIZE_COMPAT (15 * 1024 * 1024)
+
+/* Claimed to be 12232B */
+#define HN_MTU_MAX (9 * 1024)
+
+#define HN_PKTBUF_LEN 4096
+
+#define HN_TXBR_SIZE (128 * PAGE_SIZE)
+#define HN_RXBR_SIZE (128 * PAGE_SIZE)
+
+#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)
+
+#define HN_GPACNT_MAX 32
struct vmbus_channel;
+struct hn_softc;
struct hn_send_ctx;
typedef void (*hn_sent_callback_t)
@@ -48,6 +64,12 @@ struct hn_send_ctx {
void *hn_cbarg;
};
+#define HN_SEND_CTX_INITIALIZER(cb, cbarg) \
+{ \
+ .hn_cb = cb, \
+ .hn_cbarg = cbarg \
+}
+
#define HN_NDIS_VLAN_INFO_INVALID 0xffffffff
#define HN_NDIS_RXCSUM_INFO_INVALID 0
#define HN_NDIS_HASH_INFO_INVALID 0
@@ -59,11 +81,185 @@ struct hn_recvinfo {
uint32_t hash_value;
};
-#define HN_SEND_CTX_INITIALIZER(cb, cbarg) \
-{ \
- .hn_cb = cb, \
- .hn_cbarg = cbarg \
-}
+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_pktbuf;
+ 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[HN_GPACNT_MAX];
+
+ 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;
+
+ int hn_rss_ind_size;
+ uint32_t hn_rss_hash; /* NDIS_HASH_ */
+ 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
+
+/* Capability description for use with printf(9) %b identifier. */
+#define HN_CAP_BITS \
+ "\020\1VLAN\2MTU\3IPCS\4TCP4CS\5TCP6CS" \
+ "\6UDP4CS\7UDP6CS\10TSO4\11TSO6\12HASHVAL"
+
+#define HN_LINK_FLAG_LINKUP 0x0001
+#define HN_LINK_FLAG_NETCHG 0x0002
static __inline void
hn_send_ctx_init(struct hn_send_ctx *sndc, hn_sent_callback_t cb, void *cbarg)
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