From: Stefano Stabellini <sstabellini@kernel.org> To: xen-devel@lists.xen.org Cc: linux-kernel@vger.kernel.org, sstabellini@kernel.org, jgross@suse.com, boris.ostrovsky@oracle.com, Stefano Stabellini <stefano@aporeto.com> Subject: [PATCH v6 06/13] xen/pvcalls: implement bind command Date: Tue, 24 Oct 2017 10:33:26 -0700 [thread overview] Message-ID: <1508866413-30141-6-git-send-email-sstabellini@kernel.org> (raw) In-Reply-To: <1508866413-30141-1-git-send-email-sstabellini@kernel.org> Send PVCALLS_BIND to the backend. Introduce a new structure, part of struct sock_mapping, to store information specific to passive sockets. Introduce a status field to keep track of the status of the passive socket. Signed-off-by: Stefano Stabellini <stefano@aporeto.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> CC: boris.ostrovsky@oracle.com CC: jgross@suse.com --- drivers/xen/pvcalls-front.c | 66 +++++++++++++++++++++++++++++++++++++++++++++ drivers/xen/pvcalls-front.h | 3 +++ 2 files changed, 69 insertions(+) diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c index c426d41..81baebd 100644 --- a/drivers/xen/pvcalls-front.c +++ b/drivers/xen/pvcalls-front.c @@ -70,6 +70,13 @@ struct sock_mapping { wait_queue_head_t inflight_conn_req; } active; + struct { + /* Socket status */ +#define PVCALLS_STATUS_UNINITALIZED 0 +#define PVCALLS_STATUS_BIND 1 +#define PVCALLS_STATUS_LISTEN 2 + uint8_t status; + } passive; }; }; @@ -346,6 +353,65 @@ int pvcalls_front_connect(struct socket *sock, struct sockaddr *addr, return ret; } +int pvcalls_front_bind(struct socket *sock, struct sockaddr *addr, int addr_len) +{ + struct pvcalls_bedata *bedata; + struct sock_mapping *map = NULL; + struct xen_pvcalls_request *req; + int notify, req_id, ret; + + if (addr->sa_family != AF_INET || sock->type != SOCK_STREAM) + return -EOPNOTSUPP; + + pvcalls_enter(); + if (!pvcalls_front_dev) { + pvcalls_exit(); + return -ENOTCONN; + } + bedata = dev_get_drvdata(&pvcalls_front_dev->dev); + + map = (struct sock_mapping *) sock->sk->sk_send_head; + if (map == NULL) { + pvcalls_exit(); + return -ENOTSOCK; + } + + spin_lock(&bedata->socket_lock); + ret = get_request(bedata, &req_id); + if (ret < 0) { + spin_unlock(&bedata->socket_lock); + pvcalls_exit(); + return ret; + } + req = RING_GET_REQUEST(&bedata->ring, req_id); + req->req_id = req_id; + map->sock = sock; + req->cmd = PVCALLS_BIND; + req->u.bind.id = (uint64_t)map; + memcpy(req->u.bind.addr, addr, sizeof(*addr)); + req->u.bind.len = addr_len; + + map->active_socket = false; + + bedata->ring.req_prod_pvt++; + RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&bedata->ring, notify); + spin_unlock(&bedata->socket_lock); + if (notify) + notify_remote_via_irq(bedata->irq); + + wait_event(bedata->inflight_req, + READ_ONCE(bedata->rsp[req_id].req_id) == req_id); + + /* read req_id, then the content */ + smp_rmb(); + ret = bedata->rsp[req_id].ret; + bedata->rsp[req_id].req_id = PVCALLS_INVALID_ID; + + map->passive.status = PVCALLS_STATUS_BIND; + pvcalls_exit(); + return 0; +} + static const struct xenbus_device_id pvcalls_front_ids[] = { { "pvcalls" }, { "" } diff --git a/drivers/xen/pvcalls-front.h b/drivers/xen/pvcalls-front.h index 63b0417..8b0a274 100644 --- a/drivers/xen/pvcalls-front.h +++ b/drivers/xen/pvcalls-front.h @@ -6,5 +6,8 @@ int pvcalls_front_socket(struct socket *sock); int pvcalls_front_connect(struct socket *sock, struct sockaddr *addr, int addr_len, int flags); +int pvcalls_front_bind(struct socket *sock, + struct sockaddr *addr, + int addr_len); #endif -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Stefano Stabellini <sstabellini@kernel.org> To: xen-devel@lists.xen.org Cc: jgross@suse.com, Stefano Stabellini <stefano@aporeto.com>, boris.ostrovsky@oracle.com, sstabellini@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 06/13] xen/pvcalls: implement bind command Date: Tue, 24 Oct 2017 10:33:26 -0700 [thread overview] Message-ID: <1508866413-30141-6-git-send-email-sstabellini@kernel.org> (raw) In-Reply-To: <1508866413-30141-1-git-send-email-sstabellini@kernel.org> Send PVCALLS_BIND to the backend. Introduce a new structure, part of struct sock_mapping, to store information specific to passive sockets. Introduce a status field to keep track of the status of the passive socket. Signed-off-by: Stefano Stabellini <stefano@aporeto.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> CC: boris.ostrovsky@oracle.com CC: jgross@suse.com --- drivers/xen/pvcalls-front.c | 66 +++++++++++++++++++++++++++++++++++++++++++++ drivers/xen/pvcalls-front.h | 3 +++ 2 files changed, 69 insertions(+) diff --git a/drivers/xen/pvcalls-front.c b/drivers/xen/pvcalls-front.c index c426d41..81baebd 100644 --- a/drivers/xen/pvcalls-front.c +++ b/drivers/xen/pvcalls-front.c @@ -70,6 +70,13 @@ struct sock_mapping { wait_queue_head_t inflight_conn_req; } active; + struct { + /* Socket status */ +#define PVCALLS_STATUS_UNINITALIZED 0 +#define PVCALLS_STATUS_BIND 1 +#define PVCALLS_STATUS_LISTEN 2 + uint8_t status; + } passive; }; }; @@ -346,6 +353,65 @@ int pvcalls_front_connect(struct socket *sock, struct sockaddr *addr, return ret; } +int pvcalls_front_bind(struct socket *sock, struct sockaddr *addr, int addr_len) +{ + struct pvcalls_bedata *bedata; + struct sock_mapping *map = NULL; + struct xen_pvcalls_request *req; + int notify, req_id, ret; + + if (addr->sa_family != AF_INET || sock->type != SOCK_STREAM) + return -EOPNOTSUPP; + + pvcalls_enter(); + if (!pvcalls_front_dev) { + pvcalls_exit(); + return -ENOTCONN; + } + bedata = dev_get_drvdata(&pvcalls_front_dev->dev); + + map = (struct sock_mapping *) sock->sk->sk_send_head; + if (map == NULL) { + pvcalls_exit(); + return -ENOTSOCK; + } + + spin_lock(&bedata->socket_lock); + ret = get_request(bedata, &req_id); + if (ret < 0) { + spin_unlock(&bedata->socket_lock); + pvcalls_exit(); + return ret; + } + req = RING_GET_REQUEST(&bedata->ring, req_id); + req->req_id = req_id; + map->sock = sock; + req->cmd = PVCALLS_BIND; + req->u.bind.id = (uint64_t)map; + memcpy(req->u.bind.addr, addr, sizeof(*addr)); + req->u.bind.len = addr_len; + + map->active_socket = false; + + bedata->ring.req_prod_pvt++; + RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&bedata->ring, notify); + spin_unlock(&bedata->socket_lock); + if (notify) + notify_remote_via_irq(bedata->irq); + + wait_event(bedata->inflight_req, + READ_ONCE(bedata->rsp[req_id].req_id) == req_id); + + /* read req_id, then the content */ + smp_rmb(); + ret = bedata->rsp[req_id].ret; + bedata->rsp[req_id].req_id = PVCALLS_INVALID_ID; + + map->passive.status = PVCALLS_STATUS_BIND; + pvcalls_exit(); + return 0; +} + static const struct xenbus_device_id pvcalls_front_ids[] = { { "pvcalls" }, { "" } diff --git a/drivers/xen/pvcalls-front.h b/drivers/xen/pvcalls-front.h index 63b0417..8b0a274 100644 --- a/drivers/xen/pvcalls-front.h +++ b/drivers/xen/pvcalls-front.h @@ -6,5 +6,8 @@ int pvcalls_front_socket(struct socket *sock); int pvcalls_front_connect(struct socket *sock, struct sockaddr *addr, int addr_len, int flags); +int pvcalls_front_bind(struct socket *sock, + struct sockaddr *addr, + int addr_len); #endif -- 1.9.1 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
next prev parent reply other threads:[~2017-10-24 17:36 UTC|newest] Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top 2017-10-24 17:33 [PATCH v6 00/13] introduce the Xen PV Calls frontend Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 01/13] xen/pvcalls: introduce the pvcalls xenbus frontend Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 02/13] xen/pvcalls: implement frontend disconnect Stefano Stabellini 2017-10-25 13:49 ` Boris Ostrovsky 2017-10-25 13:49 ` Boris Ostrovsky 2017-10-25 23:22 ` Stefano Stabellini 2017-10-25 23:22 ` Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 03/13] xen/pvcalls: connect to the backend Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 04/13] xen/pvcalls: implement socket command and handle events Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 05/13] xen/pvcalls: implement connect command Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini [this message] 2017-10-24 17:33 ` [PATCH v6 06/13] xen/pvcalls: implement bind command Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 07/13] xen/pvcalls: implement listen command Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 08/13] xen/pvcalls: implement accept command Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 09/13] xen/pvcalls: implement sendmsg Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 10/13] xen/pvcalls: implement recvmsg Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 11/13] xen/pvcalls: implement poll command Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-24 17:33 ` [PATCH v6 12/13] xen/pvcalls: implement release command Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-25 14:32 ` Boris Ostrovsky 2017-10-25 23:00 ` Stefano Stabellini 2017-10-26 14:11 ` Boris Ostrovsky 2017-10-26 14:11 ` Boris Ostrovsky 2017-10-26 18:21 ` Stefano Stabellini 2017-10-26 18:21 ` Stefano Stabellini 2017-10-25 23:00 ` Stefano Stabellini 2017-10-25 14:32 ` Boris Ostrovsky 2017-10-24 17:33 ` [PATCH v6 13/13] xen: introduce a Kconfig option to enable the pvcalls frontend Stefano Stabellini 2017-10-24 17:33 ` Stefano Stabellini 2017-10-25 14:39 ` Boris Ostrovsky 2017-10-25 14:39 ` Boris Ostrovsky 2017-10-25 22:56 ` Stefano Stabellini 2017-10-25 22:56 ` Stefano Stabellini
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