From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: passt.top; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: passt.top; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=Y9PwIA19; dkim-atps=neutral Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by passt.top (Postfix) with ESMTPS id 7C4475A0965 for ; Wed, 03 Dec 2025 19:54:48 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1764788087; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=y9JCLQxOddcOykYHFyAwRdz75o1hHMRchU1XfkuylMo=; b=Y9PwIA19PQI/3EyloQD7T9/iyKWsYRx3FL44EA82HJ7RXCXeAaf85mJEGZ2bnazRqREkBj g1lv6hORLnZIS9JHNKHAyv5ZIkyx/OUWxP97amBJRbPAUggrLpNNXkjZOdKi5uwlho6uih zwKqJVKl3G4NXKUHyuNQCwdZpLvx2H4= Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-97-z8dQOydkPYODsJsD8C4KCg-1; Wed, 03 Dec 2025 13:54:45 -0500 X-MC-Unique: z8dQOydkPYODsJsD8C4KCg-1 X-Mimecast-MFC-AGG-ID: z8dQOydkPYODsJsD8C4KCg_1764788085 Received: from mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.93]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 0670519560AD for ; Wed, 3 Dec 2025 18:54:45 +0000 (UTC) Received: from lenovo-t14s.redhat.com (unknown [10.45.225.59]) by mx-prod-int-06.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 6A407180035A; Wed, 3 Dec 2025 18:54:43 +0000 (UTC) From: Laurent Vivier To: passt-dev@passt.top Subject: [PATCH v3 4/6] vhost-user: Add queue pair parameter throughout the network stack Date: Wed, 3 Dec 2025 19:54:32 +0100 Message-ID: <20251203185435.582096-5-lvivier@redhat.com> In-Reply-To: <20251203185435.582096-1-lvivier@redhat.com> References: <20251203185435.582096-1-lvivier@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.93 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: WT4Exdcen6vKpK9RrkxsrOz5TMDMaei3H1_0MSE_4qY_1764788085 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: 8bit content-type: text/plain; charset="US-ASCII"; x-default=true Message-ID-Hash: SPB3XNRBVQVE5F47PXI2JC6OAEHHQS25 X-Message-ID-Hash: SPB3XNRBVQVE5F47PXI2JC6OAEHHQS25 X-MailFrom: lvivier@redhat.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: Laurent Vivier X-Mailman-Version: 3.3.8 Precedence: list List-Id: Development discussion and patches for passt Archived-At: Archived-At: List-Archive: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Add a queue pair parameter to vu_send_single() and propagate this parameter through the entire network stack call chain. The queue pair parameter specifies which queue pair to use for sending packets in vhost-user mode. All callers currently pass queue pair #0 to preserve existing behavior. This is a preparatory step for enabling multi-queue and per-queue worker threads in vhost-user mode. No functional change. Signed-off-by: Laurent Vivier --- arp.c | 15 +++++---- arp.h | 6 ++-- dhcp.c | 5 +-- dhcp.h | 2 +- dhcpv6.c | 12 +++++--- dhcpv6.h | 2 +- fwd.c | 18 ++++++----- fwd.h | 5 +-- icmp.c | 6 ++-- ndp.c | 35 ++++++++++++--------- ndp.h | 7 +++-- netlink.c | 2 +- tap.c | 83 +++++++++++++++++++++++++++++--------------------- tap.h | 17 ++++++----- tcp.c | 16 ++++++---- tcp.h | 7 +++-- udp.c | 22 +++++++------ udp.h | 4 +-- udp_internal.h | 4 +-- vu_common.c | 13 +++++--- vu_common.h | 3 +- 21 files changed, 164 insertions(+), 120 deletions(-) diff --git a/arp.c b/arp.c index bb042e9585a3..1dc8b87cd993 100644 --- a/arp.c +++ b/arp.c @@ -63,11 +63,12 @@ static bool ignore_arp(const struct ctx *c, /** * arp() - Check if this is a supported ARP message, reply as needed * @c: Execution context + * @qpair: Queue pair on which to send the reply * @data: Single packet with Ethernet buffer * * Return: 1 if handled, -1 on failure */ -int arp(const struct ctx *c, struct iov_tail *data) +int arp(const struct ctx *c, unsigned int qpair, struct iov_tail *data) { union inany_addr tgt; struct { @@ -112,7 +113,7 @@ int arp(const struct ctx *c, struct iov_tail *data) memcpy(resp.am.tha, am->sha, sizeof(resp.am.tha)); memcpy(resp.am.tip, am->sip, sizeof(resp.am.tip)); - tap_send_single(c, &resp, sizeof(resp)); + tap_send_single(c, qpair, &resp, sizeof(resp)); return 1; } @@ -120,8 +121,9 @@ int arp(const struct ctx *c, struct iov_tail *data) /** * arp_send_init_req() - Send initial ARP request to retrieve guest MAC address * @c: Execution context + * @qpair: Queue pair on which to send the request */ -void arp_send_init_req(const struct ctx *c) +void arp_send_init_req(const struct ctx *c, unsigned int qpair) { struct { struct ethhdr eh; @@ -148,16 +150,17 @@ void arp_send_init_req(const struct ctx *c) memcpy(req.am.tip, &c->ip4.addr, sizeof(req.am.tip)); debug("Sending initial ARP request for guest MAC address"); - tap_send_single(c, &req, sizeof(req)); + tap_send_single(c, qpair, &req, sizeof(req)); } /** * arp_announce() - Send an ARP announcement for an IPv4 host * @c: Execution context + * @qpair: Queue pair on which to send the announcement * @ip: IPv4 address we announce as owned by @mac * @mac: MAC address to advertise for @ip */ -void arp_announce(const struct ctx *c, struct in_addr *ip, +void arp_announce(const struct ctx *c, unsigned int qpair, struct in_addr *ip, const unsigned char *mac) { char ip_str[INET_ADDRSTRLEN]; @@ -202,5 +205,5 @@ void arp_announce(const struct ctx *c, struct in_addr *ip, eth_ntop(mac, mac_str, sizeof(mac_str)); debug("ARP announcement for %s / %s", ip_str, mac_str); - tap_send_single(c, &msg, sizeof(msg)); + tap_send_single(c, qpair, &msg, sizeof(msg)); } diff --git a/arp.h b/arp.h index 4862e90a14ee..0f7a722a8ea8 100644 --- a/arp.h +++ b/arp.h @@ -20,9 +20,9 @@ struct arpmsg { unsigned char tip[4]; } __attribute__((__packed__)); -int arp(const struct ctx *c, struct iov_tail *data); -void arp_send_init_req(const struct ctx *c); -void arp_announce(const struct ctx *c, struct in_addr *ip, +int arp(const struct ctx *c, unsigned int qpair, struct iov_tail *data); +void arp_send_init_req(const struct ctx *c, unsigned int qpair); +void arp_announce(const struct ctx *c, unsigned int qpair, struct in_addr *ip, const unsigned char *mac); #endif /* ARP_H */ diff --git a/dhcp.c b/dhcp.c index 6b9c2e3b9e5a..e3f5673cc5d8 100644 --- a/dhcp.c +++ b/dhcp.c @@ -296,11 +296,12 @@ static void opt_set_dns_search(const struct ctx *c, size_t max_len) /** * dhcp() - Check if this is a DHCP message, reply as needed * @c: Execution context + * @qpair: Queue pair on which to send the reply * @data: Single packet with Ethernet buffer * * Return: 0 if it's not a DHCP message, 1 if handled, -1 on failure */ -int dhcp(const struct ctx *c, struct iov_tail *data) +int dhcp(const struct ctx *c, unsigned int qpair, struct iov_tail *data) { char macstr[ETH_ADDRSTRLEN]; size_t mlen, dlen, opt_len; @@ -471,7 +472,7 @@ int dhcp(const struct ctx *c, struct iov_tail *data) else dst = c->ip4.addr; - tap_udp4_send(c, c->ip4.our_tap_addr, 67, dst, 68, &reply, dlen); + tap_udp4_send(c, qpair, c->ip4.our_tap_addr, 67, dst, 68, &reply, dlen); return 1; } diff --git a/dhcp.h b/dhcp.h index cd50c99b8856..6d034f0c58af 100644 --- a/dhcp.h +++ b/dhcp.h @@ -6,7 +6,7 @@ #ifndef DHCP_H #define DHCP_H -int dhcp(const struct ctx *c, struct iov_tail *data); +int dhcp(const struct ctx *c, unsigned int qpair, struct iov_tail *data); void dhcp_init(void); #endif /* DHCP_H */ diff --git a/dhcpv6.c b/dhcpv6.c index e4df0db562e6..5fffac5d95e5 100644 --- a/dhcpv6.c +++ b/dhcpv6.c @@ -369,12 +369,13 @@ notonlink: /** * dhcpv6_send_ia_notonlink() - Send NotOnLink status * @c: Execution context + * @qpair: Queue pair on which to send the reply * @ia_base: Non-appropriate IA_NA or IA_TA base * @client_id_base: Client ID message option base * @len: Client ID length * @xid: Transaction ID for message exchange */ -static void dhcpv6_send_ia_notonlink(struct ctx *c, +static void dhcpv6_send_ia_notonlink(struct ctx *c, unsigned int qpair, const struct iov_tail *ia_base, const struct iov_tail *client_id_base, int len, uint32_t xid) @@ -404,7 +405,7 @@ static void dhcpv6_send_ia_notonlink(struct ctx *c, resp_not_on_link.hdr.xid = xid; - tap_udp6_send(c, src, 547, tap_ip6_daddr(c, src), 546, + tap_udp6_send(c, qpair, src, 547, tap_ip6_daddr(c, src), 546, xid, &resp_not_on_link, n); } @@ -539,13 +540,14 @@ static size_t dhcpv6_client_fqdn_fill(const struct iov_tail *data, /** * dhcpv6() - Check if this is a DHCPv6 message, reply as needed * @c: Execution context + * @qpair: Queue pair on which to send the reply * @data: Single packet starting from UDP header * @saddr: Source IPv6 address of original message * @daddr: Destination IPv6 address of original message * * Return: 0 if it's not a DHCPv6 message, 1 if handled, -1 on failure */ -int dhcpv6(struct ctx *c, struct iov_tail *data, +int dhcpv6(struct ctx *c, unsigned int qpair, struct iov_tail *data, const struct in6_addr *saddr, const struct in6_addr *daddr) { const struct opt_server_id *server_id = NULL; @@ -627,7 +629,7 @@ int dhcpv6(struct ctx *c, struct iov_tail *data, if (dhcpv6_ia_notonlink(data, &c->ip6.addr)) { - dhcpv6_send_ia_notonlink(c, data, &client_id_base, + dhcpv6_send_ia_notonlink(c, qpair, data, &client_id_base, ntohs(client_id->l), mh->xid); return 1; @@ -677,7 +679,7 @@ int dhcpv6(struct ctx *c, struct iov_tail *data, resp.hdr.xid = mh->xid; - tap_udp6_send(c, src, 547, tap_ip6_daddr(c, src), 546, + tap_udp6_send(c, qpair, src, 547, tap_ip6_daddr(c, src), 546, mh->xid, &resp, n); c->ip6.addr_seen = c->ip6.addr; diff --git a/dhcpv6.h b/dhcpv6.h index c706dfdbb2ac..3a249b39e6c7 100644 --- a/dhcpv6.h +++ b/dhcpv6.h @@ -6,7 +6,7 @@ #ifndef DHCPV6_H #define DHCPV6_H -int dhcpv6(struct ctx *c, struct iov_tail *data, +int dhcpv6(struct ctx *c, unsigned int qpair, struct iov_tail *data, struct in6_addr *saddr, struct in6_addr *daddr); void dhcpv6_init(const struct ctx *c); diff --git a/fwd.c b/fwd.c index c417e0f5ddb9..082d9de1eb91 100644 --- a/fwd.c +++ b/fwd.c @@ -110,12 +110,14 @@ static struct neigh_table_entry *fwd_neigh_table_find(const struct ctx *c, /** * fwd_neigh_table_update() - Allocate or update neighbour table entry * @c: Execution context + * @qpair: Queue pair to use for sending announcements * @addr: IP address used to determine insertion slot and store in entry * @mac: The MAC address associated with the neighbour address * @permanent: Created entry cannot be altered or freed */ -void fwd_neigh_table_update(const struct ctx *c, const union inany_addr *addr, - const uint8_t *mac, bool permanent) +void fwd_neigh_table_update(const struct ctx *c, unsigned int qpair, + const union inany_addr *addr, const uint8_t *mac, + bool permanent) { struct neigh_table *t = &neigh_table; struct neigh_table_entry *e; @@ -147,9 +149,9 @@ void fwd_neigh_table_update(const struct ctx *c, const union inany_addr *addr, return; if (inany_v4(addr)) - arp_announce(c, inany_v4(addr), e->mac); + arp_announce(c, qpair, inany_v4(addr), e->mac); else - ndp_unsolicited_na(c, &addr->a6); + ndp_unsolicited_na(c, qpair, &addr->a6); } /** @@ -230,19 +232,19 @@ void fwd_neigh_table_init(const struct ctx *c) /* Blocker entries to stop events from hosts using these addresses */ if (!inany_is_unspecified4(&mhl)) - fwd_neigh_table_update(c, &mhl, c->our_tap_mac, true); + fwd_neigh_table_update(c, 0, &mhl, c->our_tap_mac, true); if (!inany_is_unspecified4(&mga)) - fwd_neigh_table_update(c, &mga, c->our_tap_mac, true); + fwd_neigh_table_update(c, 0, &mga, c->our_tap_mac, true); mhl = *(union inany_addr *)&c->ip6.map_host_loopback; mga = *(union inany_addr *)&c->ip6.map_guest_addr; if (!inany_is_unspecified6(&mhl)) - fwd_neigh_table_update(c, &mhl, c->our_tap_mac, true); + fwd_neigh_table_update(c, 0, &mhl, c->our_tap_mac, true); if (!inany_is_unspecified6(&mga)) - fwd_neigh_table_update(c, &mga, c->our_tap_mac, true); + fwd_neigh_table_update(c, 0, &mga, c->our_tap_mac, true); } /** fwd_probe_ephemeral() - Determine what ports this host considers ephemeral diff --git a/fwd.h b/fwd.h index 779258221a9a..839737028ace 100644 --- a/fwd.h +++ b/fwd.h @@ -55,8 +55,9 @@ uint8_t fwd_nat_from_splice(const struct ctx *c, uint8_t proto, const struct flowside *ini, struct flowside *tgt); uint8_t fwd_nat_from_host(const struct ctx *c, uint8_t proto, const struct flowside *ini, struct flowside *tgt); -void fwd_neigh_table_update(const struct ctx *c, const union inany_addr *addr, - const uint8_t *mac, bool permanent); +void fwd_neigh_table_update(const struct ctx *c, unsigned int qpair, + const union inany_addr *addr, const uint8_t *mac, + bool permanent); void fwd_neigh_table_free(const struct ctx *c, const union inany_addr *addr); void fwd_neigh_mac_get(const struct ctx *c, const union inany_addr *addr, diff --git a/icmp.c b/icmp.c index 35faefb91870..a9f0518c2f61 100644 --- a/icmp.c +++ b/icmp.c @@ -132,12 +132,14 @@ void icmp_sock_handler(const struct ctx *c, union epoll_ref ref) const struct in_addr *daddr = inany_v4(&ini->eaddr); ASSERT(saddr && daddr); /* Must have IPv4 addresses */ - tap_icmp4_send(c, *saddr, *daddr, buf, pingf->f.tap_omac, n); + tap_icmp4_send(c, 0, *saddr, *daddr, buf, + pingf->f.tap_omac, n); } else if (pingf->f.type == FLOW_PING6) { const struct in6_addr *saddr = &ini->oaddr.a6; const struct in6_addr *daddr = &ini->eaddr.a6; - tap_icmp6_send(c, saddr, daddr, buf, pingf->f.tap_omac, n); + tap_icmp6_send(c, 0, saddr, daddr, buf, + pingf->f.tap_omac, n); } return; diff --git a/ndp.c b/ndp.c index eb9e31399555..c1d8dd62d7e2 100644 --- a/ndp.c +++ b/ndp.c @@ -175,25 +175,27 @@ struct ndp_ns { /** * ndp_send() - Send an NDP message * @c: Execution context + * @qpair: Queue pair on which to send the message * @dst: IPv6 address to send the message to * @buf: ICMPv6 header + message payload * @l4len: Length of message, including ICMPv6 header */ -static void ndp_send(const struct ctx *c, const struct in6_addr *dst, +static void ndp_send(const struct ctx *c, unsigned int qpair, const struct in6_addr *dst, const void *buf, size_t l4len) { const struct in6_addr *src = &c->ip6.our_tap_ll; - tap_icmp6_send(c, src, dst, buf, c->our_tap_mac, l4len); + tap_icmp6_send(c, qpair, src, dst, buf, c->our_tap_mac, l4len); } /** * ndp_na() - Send an NDP Neighbour Advertisement (NA) message * @c: Execution context + * @qpair: Queue pair on which to send the NA * @dst: IPv6 address to send the NA to * @addr: IPv6 address to advertise */ -static void ndp_na(const struct ctx *c, const struct in6_addr *dst, +static void ndp_na(const struct ctx *c, unsigned int qpair, const struct in6_addr *dst, const struct in6_addr *addr) { union inany_addr tgt; @@ -217,26 +219,29 @@ static void ndp_na(const struct ctx *c, const struct in6_addr *dst, inany_from_af(&tgt, AF_INET6, addr); fwd_neigh_mac_get(c, &tgt, na.target_l2_addr.mac); - ndp_send(c, dst, &na, sizeof(na)); + ndp_send(c, qpair, dst, &na, sizeof(na)); } /** * ndp_unsolicited_na() - Send unsolicited NA * @c: Execution context + * @qpair: Queue pair on which to send the RA * @addr: IPv6 address to advertise */ -void ndp_unsolicited_na(const struct ctx *c, const struct in6_addr *addr) +void ndp_unsolicited_na(const struct ctx *c, unsigned int qpair, + const struct in6_addr *addr) { if (tap_is_ready(c)) - ndp_na(c, &in6addr_ll_all_nodes, addr); + ndp_na(c, qpair, &in6addr_ll_all_nodes, addr); } /** * ndp_ra() - Send an NDP Router Advertisement (RA) message * @c: Execution context + * @qpair: Queue pair on which to send the RA * @dst: IPv6 address to send the RA to */ -static void ndp_ra(const struct ctx *c, const struct in6_addr *dst) +static void ndp_ra(const struct ctx *c, unsigned int qpair, const struct in6_addr *dst) { struct ndp_ra ra = { .ih = { @@ -342,18 +347,19 @@ static void ndp_ra(const struct ctx *c, const struct in6_addr *dst) memcpy(&ra.source_ll.mac, c->our_tap_mac, ETH_ALEN); /* NOLINTNEXTLINE(clang-analyzer-security.PointerSub) */ - ndp_send(c, dst, &ra, ptr - (unsigned char *)&ra); + ndp_send(c, qpair, dst, &ra, ptr - (unsigned char *)&ra); } /** * ndp() - Check for NDP solicitations, reply as needed * @c: Execution context + * @qpair: Queue pair on which to send replies * @saddr: Source IPv6 address * @data: Single packet with ICMPv6 header * * Return: 0 if not handled here, 1 if handled, -1 on failure */ -int ndp(const struct ctx *c, const struct in6_addr *saddr, +int ndp(const struct ctx *c, unsigned int qpair, const struct in6_addr *saddr, struct iov_tail *data) { struct icmp6hdr ih_storage; @@ -382,13 +388,13 @@ int ndp(const struct ctx *c, const struct in6_addr *saddr, info("NDP: received NS, sending NA"); - ndp_na(c, saddr, &ns->target_addr); + ndp_na(c, qpair, saddr, &ns->target_addr); } else if (ih->icmp6_type == RS) { if (c->no_ra) return 1; info("NDP: received RS, sending RA"); - ndp_ra(c, saddr); + ndp_ra(c, qpair, saddr); } return 1; @@ -446,7 +452,7 @@ void ndp_timer(const struct ctx *c, const struct timespec *now) info("NDP: sending unsolicited RA, next in %llds", (long long)interval); - ndp_ra(c, &in6addr_ll_all_nodes); + ndp_ra(c, 0, &in6addr_ll_all_nodes); first: next_ra = now->tv_sec + interval; @@ -455,8 +461,9 @@ first: /** * ndp_send_init_req() - Send initial NDP NS to retrieve guest MAC address * @c: Execution context + * @qpair: Queue pair on which to send the request */ -void ndp_send_init_req(const struct ctx *c) +void ndp_send_init_req(const struct ctx *c, unsigned int qpair) { struct ndp_ns ns = { .ih = { @@ -469,5 +476,5 @@ void ndp_send_init_req(const struct ctx *c) .target_addr = c->ip6.addr }; debug("Sending initial NDP NS request for guest MAC address"); - ndp_send(c, &c->ip6.addr, &ns, sizeof(ns)); + ndp_send(c, qpair, &c->ip6.addr, &ns, sizeof(ns)); } diff --git a/ndp.h b/ndp.h index 56b756d8400b..8c168fc199fe 100644 --- a/ndp.h +++ b/ndp.h @@ -8,10 +8,11 @@ struct icmp6hdr; -int ndp(const struct ctx *c, const struct in6_addr *saddr, +int ndp(const struct ctx *c, unsigned int qpair, const struct in6_addr *saddr, struct iov_tail *data); void ndp_timer(const struct ctx *c, const struct timespec *now); -void ndp_send_init_req(const struct ctx *c); -void ndp_unsolicited_na(const struct ctx *c, const struct in6_addr *addr); +void ndp_send_init_req(const struct ctx *c, unsigned int qpair); +void ndp_unsolicited_na(const struct ctx *c, unsigned int qpair, + const struct in6_addr *addr); #endif /* NDP_H */ diff --git a/netlink.c b/netlink.c index 82a2f0c9aef7..c5b402a0ab98 100644 --- a/netlink.c +++ b/netlink.c @@ -1201,7 +1201,7 @@ static void nl_neigh_msg_read(const struct ctx *c, struct nlmsghdr *nh) eth_ntop(lladdr, mac_str, sizeof(mac_str)); trace("neighbour notifier update: %s / %s", ip_str, mac_str); - fwd_neigh_table_update(c, &daddr, lladdr, false); + fwd_neigh_table_update(c, 0, &daddr, lladdr, false); } /** diff --git a/tap.c b/tap.c index 591b49491aa3..0d1f05865d60 100644 --- a/tap.c +++ b/tap.c @@ -125,10 +125,12 @@ unsigned long tap_l2_max_len(const struct ctx *c) /** * tap_send_single() - Send a single frame * @c: Execution context + * @qpair: Queue pair on which to send the frame * @data: Packet buffer * @l2len: Total L2 packet length */ -void tap_send_single(const struct ctx *c, const void *data, size_t l2len) +void tap_send_single(const struct ctx *c, unsigned int qpair, const void *data, + size_t l2len) { uint32_t vnet_len = htonl(l2len); struct iovec iov[2]; @@ -147,7 +149,7 @@ void tap_send_single(const struct ctx *c, const void *data, size_t l2len) tap_send_frames(c, iov, iovcnt, 1); break; case MODE_VU: - vu_send_single(c, data, l2len); + vu_send_single(c, qpair, data, l2len); break; } } @@ -250,6 +252,7 @@ void *tap_push_uh4(struct udphdr *uh, struct in_addr src, in_port_t sport, /** * tap_udp4_send() - Send UDP over IPv4 packet * @c: Execution context + * @qpair: Queue pair on which to send packet * @src: IPv4 source address * @sport: UDP source port * @dst: IPv4 destination address @@ -257,7 +260,7 @@ void *tap_push_uh4(struct udphdr *uh, struct in_addr src, in_port_t sport, * @in: UDP payload contents (not including UDP header) * @dlen: UDP payload length (not including UDP header) */ -void tap_udp4_send(const struct ctx *c, struct in_addr src, in_port_t sport, +void tap_udp4_send(const struct ctx *c, unsigned int qpair, struct in_addr src, in_port_t sport, struct in_addr dst, in_port_t dport, const void *in, size_t dlen) { @@ -268,20 +271,22 @@ void tap_udp4_send(const struct ctx *c, struct in_addr src, in_port_t sport, char *data = tap_push_uh4(uh, src, sport, dst, dport, in, dlen); memcpy(data, in, dlen); - tap_send_single(c, buf, dlen + (data - buf)); + tap_send_single(c, qpair, buf, dlen + (data - buf)); } /** * tap_icmp4_send() - Send ICMPv4 packet * @c: Execution context + * @qpair: Queue pair on which to send packet * @src: IPv4 source address * @dst: IPv4 destination address * @in: ICMP packet, including ICMP header * @src_mac: MAC address to be used as source for message * @l4len: ICMP packet length, including ICMP header */ -void tap_icmp4_send(const struct ctx *c, struct in_addr src, struct in_addr dst, - const void *in, const void *src_mac, size_t l4len) +void tap_icmp4_send(const struct ctx *c, unsigned int qpair, struct in_addr src, + struct in_addr dst, const void *in, const void *src_mac, + size_t l4len) { char buf[USHRT_MAX]; struct iphdr *ip4h = tap_push_l2h(c, buf, src_mac, ETH_P_IP); @@ -291,7 +296,7 @@ void tap_icmp4_send(const struct ctx *c, struct in_addr src, struct in_addr dst, memcpy(icmp4h, in, l4len); csum_icmp4(icmp4h, icmp4h + 1, l4len - sizeof(*icmp4h)); - tap_send_single(c, buf, l4len + ((char *)icmp4h - buf)); + tap_send_single(c, qpair, buf, l4len + ((char *)icmp4h - buf)); } /** @@ -355,6 +360,7 @@ void *tap_push_uh6(struct udphdr *uh, /** * tap_udp6_send() - Send UDP over IPv6 packet * @c: Execution context + * @qpair: Queue pair on which to send packet * @src: IPv6 source address * @sport: UDP source port * @dst: IPv6 destination address @@ -363,7 +369,7 @@ void *tap_push_uh6(struct udphdr *uh, * @in: UDP payload contents (not including UDP header) * @dlen: UDP payload length (not including UDP header) */ -void tap_udp6_send(const struct ctx *c, +void tap_udp6_send(const struct ctx *c, unsigned int qpair, const struct in6_addr *src, in_port_t sport, const struct in6_addr *dst, in_port_t dport, uint32_t flow, void *in, size_t dlen) @@ -376,19 +382,20 @@ void tap_udp6_send(const struct ctx *c, char *data = tap_push_uh6(uh, src, sport, dst, dport, in, dlen); memcpy(data, in, dlen); - tap_send_single(c, buf, dlen + (data - buf)); + tap_send_single(c, qpair, buf, dlen + (data - buf)); } /** * tap_icmp6_send() - Send ICMPv6 packet * @c: Execution context + * @qpair: Queue pair on which to send packet * @src: IPv6 source address * @dst: IPv6 destination address * @in: ICMP packet, including ICMP header * @src_mac: MAC address to be used as source for message * @l4len: ICMP packet length, including ICMP header */ -void tap_icmp6_send(const struct ctx *c, +void tap_icmp6_send(const struct ctx *c, unsigned int qpair, const struct in6_addr *src, const struct in6_addr *dst, const void *in, const void *src_mac, size_t l4len) { @@ -400,7 +407,7 @@ void tap_icmp6_send(const struct ctx *c, memcpy(icmp6h, in, l4len); csum_icmp6(icmp6h, src, dst, icmp6h + 1, l4len - sizeof(*icmp6h)); - tap_send_single(c, buf, l4len + ((char *)icmp6h - buf)); + tap_send_single(c, qpair, buf, l4len + ((char *)icmp6h - buf)); } /** @@ -696,11 +703,13 @@ static bool tap4_is_fragment(const struct iphdr *iph, /** * tap4_handler() - IPv4 and ARP packet handler for tap file descriptor * @c: Execution context + * @qpair: Queue pair on which to send packets * @now: Current timestamp * * Return: count of packets consumed by handlers */ -static int tap4_handler(struct ctx *c, const struct timespec *now) +static int tap4_handler(struct ctx *c, unsigned int qpair, + const struct timespec *now) { unsigned int i, j, seq_count; struct tap4_l4_t *seq; @@ -727,7 +736,7 @@ resume: if (!eh) continue; if (ntohs(eh->h_proto) == ETH_P_ARP) { - arp(c, &data); + arp(c, qpair, &data); continue; } @@ -788,7 +797,7 @@ resume: struct iov_tail eh_data; packet_get(pool_tap4, i, &eh_data); - if (dhcp(c, &eh_data)) + if (dhcp(c, qpair, &eh_data)) continue; } @@ -851,7 +860,7 @@ append: if (c->no_tcp) continue; for (k = 0; k < p->count; ) - k += tcp_tap_handler(c, PIF_TAP, AF_INET, + k += tcp_tap_handler(c, qpair, PIF_TAP, AF_INET, &seq->saddr, &seq->daddr, 0, p, k, now); } else if (seq->protocol == IPPROTO_UDP) { @@ -873,11 +882,12 @@ append: /** * tap6_handler() - IPv6 packet handler for tap file descriptor * @c: Execution context + * @qpair: Queue pair on which to send packets * @now: Current timestamp * * Return: count of packets consumed by handlers */ -static int tap6_handler(struct ctx *c, const struct timespec *now) +static int tap6_handler(struct ctx *c, unsigned int qpair, const struct timespec *now) { unsigned int i, j, seq_count = 0; struct tap6_l4_t *seq; @@ -954,7 +964,7 @@ resume: continue; ndp_data = data; - if (ndp(c, saddr, &ndp_data)) + if (ndp(c, qpair, saddr, &ndp_data)) continue; tap_packet_debug(NULL, ip6h, NULL, proto, NULL, 1); @@ -973,7 +983,7 @@ resume: if (proto == IPPROTO_UDP) { struct iov_tail uh_data = data; - if (dhcpv6(c, &uh_data, saddr, daddr)) + if (dhcpv6(c, qpair, &uh_data, saddr, daddr)) continue; } @@ -1041,7 +1051,7 @@ append: if (c->no_tcp) continue; for (k = 0; k < p->count; ) - k += tcp_tap_handler(c, PIF_TAP, AF_INET6, + k += tcp_tap_handler(c, qpair, PIF_TAP, AF_INET6, &seq->saddr, &seq->daddr, seq->flow_lbl, p, k, now); } else if (seq->protocol == IPPROTO_UDP) { @@ -1072,21 +1082,23 @@ void tap_flush_pools(void) /** * tap_handler() - IPv4/IPv6 and ARP packet handler for tap file descriptor * @c: Execution context + * @qpair: Queue pair on which to send packets * @now: Current timestamp */ -void tap_handler(struct ctx *c, const struct timespec *now) +void tap_handler(struct ctx *c, unsigned int qpair, const struct timespec *now) { - tap4_handler(c, now); - tap6_handler(c, now); + tap4_handler(c, qpair, now); + tap6_handler(c, qpair, now); } /** * tap_add_packet() - Queue/capture packet, update notion of guest MAC address * @c: Execution context + * @qpair: Queue pair associated with the packet * @data: Packet to add to the pool * @now: Current timestamp */ -void tap_add_packet(struct ctx *c, struct iov_tail *data, +void tap_add_packet(struct ctx *c, unsigned int qpair, struct iov_tail *data, const struct timespec *now) { struct ethhdr eh_storage; @@ -1111,14 +1123,14 @@ void tap_add_packet(struct ctx *c, struct iov_tail *data, case ETH_P_ARP: case ETH_P_IP: if (!pool_can_fit(pool_tap4, data)) { - tap4_handler(c, now); + tap4_handler(c, qpair, now); pool_flush(pool_tap4); } packet_add(pool_tap4, data); break; case ETH_P_IPV6: if (!pool_can_fit(pool_tap6, data)) { - tap6_handler(c, now); + tap6_handler(c, qpair, now); pool_flush(pool_tap6); } packet_add(pool_tap6, data); @@ -1205,7 +1217,7 @@ static void tap_passt_input(struct ctx *c, const struct timespec *now) n -= sizeof(uint32_t); data = IOV_TAIL_FROM_BUF(p, l2len, 0); - tap_add_packet(c, &data, now); + tap_add_packet(c, 0, &data, now); p += l2len; n -= l2len; @@ -1214,7 +1226,7 @@ static void tap_passt_input(struct ctx *c, const struct timespec *now) partial_len = n; partial_frame = p; - tap_handler(c, now); + tap_handler(c, 0, now); } /** @@ -1273,10 +1285,10 @@ static void tap_pasta_input(struct ctx *c, const struct timespec *now) continue; data = IOV_TAIL_FROM_BUF(pkt_buf + n, len, 0); - tap_add_packet(c, &data, now); + tap_add_packet(c, 0, &data, now); } - tap_handler(c, now); + tap_handler(c, 0, now); } /** @@ -1365,8 +1377,9 @@ bool tap_is_ready(const struct ctx *c) /** * tap_start_connection() - start a new connection * @c: Execution context + * @qpair: Queue pair to use for the connection */ -static void tap_start_connection(const struct ctx *c) +static void tap_start_connection(const struct ctx *c, unsigned int qpair) { union epoll_ref ref = { 0 }; @@ -1389,9 +1402,9 @@ static void tap_start_connection(const struct ctx *c) return; if (c->ifi4) - arp_send_init_req(c); + arp_send_init_req(c, qpair); if (c->ifi6 && !c->no_ndp) - ndp_send_init_req(c); + ndp_send_init_req(c, qpair); } /** @@ -1439,7 +1452,7 @@ void tap_listen_handler(struct ctx *c, uint32_t events) setsockopt(c->fd_tap, SOL_SOCKET, SO_SNDBUF, &v, sizeof(v))) trace("tap: failed to set SO_SNDBUF to %i", v); - tap_start_connection(c); + tap_start_connection(c, 0); } /** @@ -1489,7 +1502,7 @@ static void tap_sock_tun_init(struct ctx *c) pasta_ns_conf(c); - tap_start_connection(c); + tap_start_connection(c, 0); } /** @@ -1526,7 +1539,7 @@ void tap_backend_init(struct ctx *c) if (c->fd_tap != -1) { /* Passed as --fd */ ASSERT(c->one_off); - tap_start_connection(c); + tap_start_connection(c, 0); return; } diff --git a/tap.h b/tap.h index ee22a9d78c44..d3ac0cb6a233 100644 --- a/tap.h +++ b/tap.h @@ -87,24 +87,25 @@ void *tap_push_ip6h(struct ipv6hdr *ip6h, const struct in6_addr *src, const struct in6_addr *dst, size_t l4len, uint8_t proto, uint32_t flow); -void tap_udp4_send(const struct ctx *c, struct in_addr src, in_port_t sport, +void tap_udp4_send(const struct ctx *c, unsigned int qpair, struct in_addr src, in_port_t sport, struct in_addr dst, in_port_t dport, const void *in, size_t dlen); -void tap_icmp4_send(const struct ctx *c, struct in_addr src, struct in_addr dst, - const void *in, const void *src_mac, size_t l4len); +void tap_icmp4_send(const struct ctx *c, unsigned int qpair, struct in_addr src, + struct in_addr dst, const void *in, const void *src_mac, + size_t l4len); const struct in6_addr *tap_ip6_daddr(const struct ctx *c, const struct in6_addr *src); void *tap_push_ip6h(struct ipv6hdr *ip6h, const struct in6_addr *src, const struct in6_addr *dst, size_t l4len, uint8_t proto, uint32_t flow); -void tap_udp6_send(const struct ctx *c, +void tap_udp6_send(const struct ctx *c, unsigned int qpair, const struct in6_addr *src, in_port_t sport, const struct in6_addr *dst, in_port_t dport, uint32_t flow, void *in, size_t dlen); -void tap_icmp6_send(const struct ctx *c, +void tap_icmp6_send(const struct ctx *c, unsigned int qpair, const struct in6_addr *src, const struct in6_addr *dst, const void *in, const void *src_mac, size_t l4len); -void tap_send_single(const struct ctx *c, const void *data, size_t l2len); +void tap_send_single(const struct ctx *c, unsigned int qpair, const void *data, size_t l2len); size_t tap_send_frames(const struct ctx *c, const struct iovec *iov, size_t bufs_per_frame, size_t nframes); void eth_update_mac(struct ethhdr *eh, @@ -119,7 +120,7 @@ int tap_sock_unix_open(char *sock_path); void tap_sock_reset(struct ctx *c); void tap_backend_init(struct ctx *c); void tap_flush_pools(void); -void tap_handler(struct ctx *c, const struct timespec *now); -void tap_add_packet(struct ctx *c, struct iov_tail *data, +void tap_handler(struct ctx *c, unsigned int qpair, const struct timespec *now); +void tap_add_packet(struct ctx *c, unsigned int qpair, struct iov_tail *data, const struct timespec *now); #endif /* TAP_H */ diff --git a/tcp.c b/tcp.c index 3202d3385a63..4c84f0e621b8 100644 --- a/tcp.c +++ b/tcp.c @@ -1985,6 +1985,7 @@ static void tcp_conn_from_sock_finish(const struct ctx *c, /** * tcp_rst_no_conn() - Send RST in response to a packet with no connection * @c: Execution context + * @qpair: Queue pair on which to send the reply * @af: Address family, AF_INET or AF_INET6 * @saddr: Source address of the packet we're responding to * @daddr: Destination address of the packet we're responding to @@ -1992,7 +1993,7 @@ static void tcp_conn_from_sock_finish(const struct ctx *c, * @th: TCP header of the packet we're responding to * @l4len: Packet length, including TCP header */ -static void tcp_rst_no_conn(const struct ctx *c, int af, +static void tcp_rst_no_conn(const struct ctx *c, unsigned int qpair, int af, const void *saddr, const void *daddr, uint32_t flow_lbl, const struct tcphdr *th, size_t l4len) @@ -2050,12 +2051,13 @@ static void tcp_rst_no_conn(const struct ctx *c, int af, tcp_update_csum(psum, rsth, &payload); rst_l2len = ((char *)rsth - buf) + sizeof(*rsth); - tap_send_single(c, buf, rst_l2len); + tap_send_single(c, qpair, buf, rst_l2len); } /** * tcp_tap_handler() - Handle packets from tap and state transitions * @c: Execution context + * @qpair: Queue pair on which to send packets * @pif: pif on which the packet is arriving * @af: Address family, AF_INET or AF_INET6 * @saddr: Source address @@ -2067,9 +2069,10 @@ static void tcp_rst_no_conn(const struct ctx *c, int af, * * Return: count of consumed packets */ -int tcp_tap_handler(const struct ctx *c, uint8_t pif, sa_family_t af, - const void *saddr, const void *daddr, uint32_t flow_lbl, - const struct pool *p, int idx, const struct timespec *now) +int tcp_tap_handler(const struct ctx *c, unsigned int qpair, uint8_t pif, + sa_family_t af, const void *saddr, const void *daddr, + uint32_t flow_lbl, const struct pool *p, int idx, + const struct timespec *now) { struct tcp_tap_conn *conn; struct tcphdr th_storage; @@ -2109,7 +2112,8 @@ int tcp_tap_handler(const struct ctx *c, uint8_t pif, sa_family_t af, tcp_conn_from_tap(c, af, saddr, daddr, th, opts, optlen, now); else - tcp_rst_no_conn(c, af, saddr, daddr, flow_lbl, th, l4len); + tcp_rst_no_conn(c, qpair, af, saddr, daddr, flow_lbl, th, + l4len); return 1; } diff --git a/tcp.h b/tcp.h index 0082386725c2..6329e348194c 100644 --- a/tcp.h +++ b/tcp.h @@ -15,9 +15,10 @@ void tcp_listen_handler(const struct ctx *c, union epoll_ref ref, const struct timespec *now); void tcp_sock_handler(const struct ctx *c, union epoll_ref ref, uint32_t events); -int tcp_tap_handler(const struct ctx *c, uint8_t pif, sa_family_t af, - const void *saddr, const void *daddr, uint32_t flow_lbl, - const struct pool *p, int idx, const struct timespec *now); +int tcp_tap_handler(const struct ctx *c, unsigned int qpair, uint8_t pif, + sa_family_t af, const void *saddr, const void *daddr, + uint32_t flow_lbl, const struct pool *p, int idx, + const struct timespec *now); int tcp_sock_init(const struct ctx *c, const union inany_addr *addr, const char *ifname, in_port_t port); int tcp_init(struct ctx *c); diff --git a/udp.c b/udp.c index 9c00950250a0..cbc2d7055647 100644 --- a/udp.c +++ b/udp.c @@ -384,13 +384,14 @@ static void udp_tap_prepare(const struct mmsghdr *mmh, /** * udp_send_tap_icmp4() - Construct and send ICMPv4 to local peer * @c: Execution context + * @qpair: Queue pair on which to send the ICMPv4 packet * @ee: Extended error descriptor * @toside: Destination side of flow * @saddr: Address of ICMP generating node * @in: First bytes (max 8) of original UDP message body * @dlen: Length of the read part of original UDP message body */ -static void udp_send_tap_icmp4(const struct ctx *c, +static void udp_send_tap_icmp4(const struct ctx *c, unsigned int qpair, const struct sock_extended_err *ee, const struct flowside *toside, struct in_addr saddr, @@ -426,13 +427,14 @@ static void udp_send_tap_icmp4(const struct ctx *c, /* Try to obtain the MAC address of the generating node */ saddr_any = inany_from_v4(saddr); fwd_neigh_mac_get(c, &saddr_any, tap_omac); - tap_icmp4_send(c, saddr, eaddr, &msg, tap_omac, msglen); + tap_icmp4_send(c, qpair, saddr, eaddr, &msg, tap_omac, msglen); } /** * udp_send_tap_icmp6() - Construct and send ICMPv6 to local peer * @c: Execution context + * @qpair: Queue pair on which to send the ICMPv6 packet * @ee: Extended error descriptor * @toside: Destination side of flow * @saddr: Address of ICMP generating node @@ -440,7 +442,7 @@ static void udp_send_tap_icmp4(const struct ctx *c, * @dlen: Length of the read part of original UDP message body * @flow: IPv6 flow identifier */ -static void udp_send_tap_icmp6(const struct ctx *c, +static void udp_send_tap_icmp6(const struct ctx *c, unsigned int qpair, const struct sock_extended_err *ee, const struct flowside *toside, const struct in6_addr *saddr, @@ -474,7 +476,7 @@ static void udp_send_tap_icmp6(const struct ctx *c, /* Try to obtain the MAC address of the generating node */ fwd_neigh_mac_get(c, (union inany_addr *) saddr, tap_omac); - tap_icmp6_send(c, saddr, eaddr, &msg, tap_omac, msglen); + tap_icmp6_send(c, qpair, saddr, eaddr, &msg, tap_omac, msglen); } /** @@ -634,12 +636,12 @@ static int udp_sock_recverr(const struct ctx *c, int s, flow_sidx_t sidx, if (hdr->cmsg_level == IPPROTO_IP && (o4 = inany_v4(&otap)) && inany_v4(&toside->eaddr)) { dlen = MIN(dlen, ICMP4_MAX_DLEN); - udp_send_tap_icmp4(c, ee, toside, *o4, data, dlen); + udp_send_tap_icmp4(c, 0, ee, toside, *o4, data, dlen); return 1; } if (hdr->cmsg_level == IPPROTO_IPV6 && !inany_v4(&toside->eaddr)) { - udp_send_tap_icmp6(c, ee, toside, &otap.a6, data, dlen, + udp_send_tap_icmp6(c, 0, ee, toside, &otap.a6, data, dlen, FLOW_IDX(uflow)); return 1; } @@ -833,8 +835,8 @@ static void udp_buf_sock_to_tap(const struct ctx *c, int s, int n, * @port: Our (local) port number of @s * @now: Current timestamp */ -void udp_sock_fwd(const struct ctx *c, int s, uint8_t frompif, - in_port_t port, const struct timespec *now) +void udp_sock_fwd(const struct ctx *c, int s, uint8_t frompif, in_port_t port, + const struct timespec *now) { union sockaddr_inany src; union inany_addr dst; @@ -912,8 +914,8 @@ void udp_listen_sock_handler(const struct ctx *c, * @events: epoll events bitmap * @now: Current timestamp */ -void udp_sock_handler(const struct ctx *c, union epoll_ref ref, - uint32_t events, const struct timespec *now) +void udp_sock_handler(const struct ctx *c, union epoll_ref ref, uint32_t events, + const struct timespec *now) { struct udp_flow *uflow = udp_at_sidx(ref.flowside); diff --git a/udp.h b/udp.h index f1d83f380b3f..7d3cd59d9a42 100644 --- a/udp.h +++ b/udp.h @@ -9,8 +9,8 @@ void udp_portmap_clear(void); void udp_listen_sock_handler(const struct ctx *c, union epoll_ref ref, uint32_t events, const struct timespec *now); -void udp_sock_handler(const struct ctx *c, union epoll_ref ref, - uint32_t events, const struct timespec *now); +void udp_sock_handler(const struct ctx *c, union epoll_ref ref, uint32_t events, + const struct timespec *now); int udp_tap_handler(const struct ctx *c, uint8_t pif, sa_family_t af, const void *saddr, const void *daddr, uint8_t ttl, const struct pool *p, int idx, diff --git a/udp_internal.h b/udp_internal.h index 96d11cff6833..ed13c5aec8d5 100644 --- a/udp_internal.h +++ b/udp_internal.h @@ -28,7 +28,7 @@ size_t udp_update_hdr4(struct iphdr *ip4h, struct udp_payload_t *bp, size_t udp_update_hdr6(struct ipv6hdr *ip6h, struct udp_payload_t *bp, const struct flowside *toside, size_t dlen, bool no_udp_csum); -void udp_sock_fwd(const struct ctx *c, int s, uint8_t frompif, - in_port_t port, const struct timespec *now); +void udp_sock_fwd(const struct ctx *c, int s, uint8_t frompif, in_port_t port, + const struct timespec *now); #endif /* UDP_INTERNAL_H */ diff --git a/vu_common.c b/vu_common.c index b13b7c308fd8..80d9a30f6f71 100644 --- a/vu_common.c +++ b/vu_common.c @@ -196,11 +196,11 @@ static void vu_handle_tx(struct vu_dev *vdev, int index, data = IOV_TAIL(elem[count].out_sg, elem[count].out_num, 0); if (IOV_DROP_HEADER(&data, struct virtio_net_hdr_mrg_rxbuf)) - tap_add_packet(vdev->context, &data, now); + tap_add_packet(vdev->context, 0, &data, now); count++; } - tap_handler(vdev->context, now); + tap_handler(vdev->context, 0, now); if (count) { int i; @@ -235,23 +235,26 @@ void vu_kick_cb(struct vu_dev *vdev, union epoll_ref ref, } /** - * vu_send_single() - Send a buffer to the front-end using the RX virtqueue + * vu_send_single() - Send a buffer to the front-end using a specified virtqueue * @c: execution context + * @qpair: Queue pair on which to send the buffer * @buf: address of the buffer * @size: size of the buffer * * Return: number of bytes sent, -1 if there is an error */ -int vu_send_single(const struct ctx *c, const void *buf, size_t size) +int vu_send_single(const struct ctx *c, unsigned int qpair, const void *buf, size_t size) { struct vu_dev *vdev = c->vdev; - struct vu_virtq *vq = &vdev->vq[VHOST_USER_RX_QUEUE]; struct vu_virtq_element elem[VIRTQUEUE_MAX_SIZE]; struct iovec in_sg[VIRTQUEUE_MAX_SIZE]; + struct vu_virtq *vq; size_t total; int elem_cnt; int i; + vq = &vdev->vq[qpair << 1]; + trace("vu_send_single size %zu", size); if (!vu_queue_enabled(vq) || !vu_queue_started(vq)) { diff --git a/vu_common.h b/vu_common.h index f538f237790b..9ceb8034a9a5 100644 --- a/vu_common.h +++ b/vu_common.h @@ -56,6 +56,7 @@ void vu_flush(const struct vu_dev *vdev, struct vu_virtq *vq, struct vu_virtq_element *elem, int elem_cnt); void vu_kick_cb(struct vu_dev *vdev, union epoll_ref ref, const struct timespec *now); -int vu_send_single(const struct ctx *c, const void *buf, size_t size); +int vu_send_single(const struct ctx *c, unsigned int qpair, const void *buf, + size_t size); #endif /* VU_COMMON_H */ -- 2.51.1