From patchwork Wed Feb 8 17:40:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Duncan X-Patchwork-Id: 13133480 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3E4FBC05027 for ; Wed, 8 Feb 2023 17:45:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229962AbjBHRpT (ORCPT ); Wed, 8 Feb 2023 12:45:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48352 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231483AbjBHRoI (ORCPT ); Wed, 8 Feb 2023 12:44:08 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 623C451C5B; Wed, 8 Feb 2023 09:42:44 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 40A9C1FF18; Wed, 8 Feb 2023 17:40:59 +0000 (UTC) Received: from localhost (unknown [10.163.24.10]) by relay2.suse.de (Postfix) with ESMTP id 010642C142; Wed, 8 Feb 2023 17:40:58 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 208A3CA186; Wed, 8 Feb 2023 09:40:57 -0800 (PST) From: Lee Duncan To: linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Lee Duncan , Chris Leech Subject: [RFC PATCH 1/9] iscsi: create per-net iscsi netlink kernel sockets Date: Wed, 8 Feb 2023 09:40:49 -0800 Message-Id: <95df16a252bc2c9f0e7fba667d2f542814c9b91b.1675876733.git.lduncan@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan Prepare iSCSI netlink to operate in multiple namespaces. Signed-off-by: Chris Leech Signed-off-by: Lee Duncan Reviewed-by: Hannes Reinecke --- drivers/scsi/scsi_transport_iscsi.c | 73 +++++++++++++++++++++++++---- 1 file changed, 63 insertions(+), 10 deletions(-) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index b9b97300e3b3..be69cea9c6f8 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -13,6 +13,8 @@ #include #include #include +#include +#include #include #include #include @@ -1597,7 +1599,11 @@ static DECLARE_TRANSPORT_CLASS(iscsi_connection_class, NULL, NULL); -static struct sock *nls; +struct iscsi_net { + struct sock *nls; +}; + +static int iscsi_net_id __read_mostly; static DEFINE_MUTEX(rx_queue_mutex); static LIST_HEAD(sesslist); @@ -2552,14 +2558,32 @@ iscsi_if_transport_lookup(struct iscsi_transport *tt) } static int -iscsi_multicast_skb(struct sk_buff *skb, uint32_t group, gfp_t gfp) +iscsi_multicast_netns(struct net *net, struct sk_buff *skb, + uint32_t group, gfp_t gfp) { + struct sock *nls; + struct iscsi_net *isn; + + isn = net_generic(net, iscsi_net_id); + nls = isn->nls; return nlmsg_multicast(nls, skb, 0, group, gfp); } +static int +iscsi_multicast_skb(struct sk_buff *skb, uint32_t group, gfp_t gfp) +{ + return iscsi_multicast_netns(&init_net, skb, group, gfp); +} + static int iscsi_unicast_skb(struct sk_buff *skb, u32 portid) { + struct sock *nls; + struct iscsi_net *isn; + struct net *net = &init_net; + + isn = net_generic(net, iscsi_net_id); + nls = isn->nls; return nlmsg_unicast(nls, skb, portid); } @@ -4937,13 +4961,42 @@ void iscsi_dbg_trace(void (*trace)(struct device *dev, struct va_format *), } EXPORT_SYMBOL_GPL(iscsi_dbg_trace); -static __init int iscsi_transport_init(void) +static int __net_init iscsi_net_init(struct net *net) { - int err; + struct sock *nls; + struct iscsi_net *isn; struct netlink_kernel_cfg cfg = { .groups = 1, .input = iscsi_if_rx, }; + + nls = netlink_kernel_create(net, NETLINK_ISCSI, &cfg); + if (!nls) + return -ENOMEM; + isn = net_generic(net, iscsi_net_id); + isn->nls = nls; + return 0; +} + +static void __net_exit iscsi_net_exit(struct net *net) +{ + struct iscsi_net *isn; + + isn = net_generic(net, iscsi_net_id); + netlink_kernel_release(isn->nls); + isn->nls = NULL; +} + +static struct pernet_operations iscsi_net_ops = { + .init = iscsi_net_init, + .exit = iscsi_net_exit, + .id = &iscsi_net_id, + .size = sizeof(struct iscsi_net), +}; + +static __init int iscsi_transport_init(void) +{ + int err; printk(KERN_INFO "Loading iSCSI transport class v%s.\n", ISCSI_TRANSPORT_VERSION); @@ -4977,8 +5030,8 @@ static __init int iscsi_transport_init(void) if (err) goto unregister_session_class; - nls = netlink_kernel_create(&init_net, NETLINK_ISCSI, &cfg); - if (!nls) { + err = register_pernet_subsys(&iscsi_net_ops); + if (err) { err = -ENOBUFS; goto unregister_flashnode_bus; } @@ -4988,13 +5041,13 @@ static __init int iscsi_transport_init(void) "iscsi_conn_cleanup"); if (!iscsi_conn_cleanup_workq) { err = -ENOMEM; - goto release_nls; + goto unregister_pernet_subsys; } return 0; -release_nls: - netlink_kernel_release(nls); +unregister_pernet_subsys: + unregister_pernet_subsys(&iscsi_net_ops); unregister_flashnode_bus: bus_unregister(&iscsi_flashnode_bus); unregister_session_class: @@ -5015,7 +5068,7 @@ static __init int iscsi_transport_init(void) static void __exit iscsi_transport_exit(void) { destroy_workqueue(iscsi_conn_cleanup_workq); - netlink_kernel_release(nls); + unregister_pernet_subsys(&iscsi_net_ops); bus_unregister(&iscsi_flashnode_bus); transport_class_unregister(&iscsi_connection_class); transport_class_unregister(&iscsi_session_class); From patchwork Wed Feb 8 17:40:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Duncan X-Patchwork-Id: 13133479 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 45BBEC636CC for ; Wed, 8 Feb 2023 17:44:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231462AbjBHRoh (ORCPT ); Wed, 8 Feb 2023 12:44:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47586 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231301AbjBHRoI (ORCPT ); Wed, 8 Feb 2023 12:44:08 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4857E4FCD4; Wed, 8 Feb 2023 09:42:43 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 425C21FF2B; Wed, 8 Feb 2023 17:40:59 +0000 (UTC) Received: from localhost (unknown [10.163.24.10]) by relay2.suse.de (Postfix) with ESMTP id 03EB92C143; Wed, 8 Feb 2023 17:40:59 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 276D3CA188; Wed, 8 Feb 2023 09:40:57 -0800 (PST) From: Lee Duncan To: linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Lee Duncan , Chris Leech Subject: [RFC PATCH 2/9] iscsi: associate endpoints with a host Date: Wed, 8 Feb 2023 09:40:50 -0800 Message-Id: <154c7602b3cc59f8af44439249ea5e5eb75f92d3.1675876734.git.lduncan@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan Right now the iscsi_endpoint is only linked to a connection once that connection has been established. For net namespace filtering of the sysfs objects, associate an endpoint with the host that it was allocated for when it is created. Signed-off-by: Chris Leech Signed-off-by: Lee Duncan --- drivers/infiniband/ulp/iser/iscsi_iser.c | 2 +- drivers/scsi/be2iscsi/be_iscsi.c | 2 +- drivers/scsi/bnx2i/bnx2i_iscsi.c | 2 +- drivers/scsi/cxgbi/libcxgbi.c | 2 +- drivers/scsi/qedi/qedi_iscsi.c | 2 +- drivers/scsi/qla4xxx/ql4_os.c | 2 +- drivers/scsi/scsi_transport_iscsi.c | 3 ++- include/scsi/scsi_transport_iscsi.h | 6 +++++- 8 files changed, 13 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 620ae5b2d80d..d38c909b462f 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -802,7 +802,7 @@ static struct iscsi_endpoint *iscsi_iser_ep_connect(struct Scsi_Host *shost, struct iser_conn *iser_conn; struct iscsi_endpoint *ep; - ep = iscsi_create_endpoint(0); + ep = iscsi_create_endpoint(shost, 0); if (!ep) return ERR_PTR(-ENOMEM); diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c index 8aeaddc93b16..c893d193f5ef 100644 --- a/drivers/scsi/be2iscsi/be_iscsi.c +++ b/drivers/scsi/be2iscsi/be_iscsi.c @@ -1168,7 +1168,7 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, return ERR_PTR(ret); } - ep = iscsi_create_endpoint(sizeof(struct beiscsi_endpoint)); + ep = iscsi_create_endpoint(shost, sizeof(struct beiscsi_endpoint)); if (!ep) { ret = -ENOMEM; return ERR_PTR(ret); diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c index a3c800e04a2e..ac63e93e07c6 100644 --- a/drivers/scsi/bnx2i/bnx2i_iscsi.c +++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c @@ -384,7 +384,7 @@ static struct iscsi_endpoint *bnx2i_alloc_ep(struct bnx2i_hba *hba) struct bnx2i_endpoint *bnx2i_ep; u32 ec_div; - ep = iscsi_create_endpoint(sizeof(*bnx2i_ep)); + ep = iscsi_create_endpoint(hba->shost, sizeof(*bnx2i_ep)); if (!ep) { printk(KERN_ERR "bnx2i: Could not allocate ep\n"); return NULL; diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index af281e271f88..94edf8e1fb0c 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -2926,7 +2926,7 @@ struct iscsi_endpoint *cxgbi_ep_connect(struct Scsi_Host *shost, goto release_conn; } - ep = iscsi_create_endpoint(sizeof(*cep)); + ep = iscsi_create_endpoint(shost, sizeof(*cep)); if (!ep) { err = -ENOMEM; pr_info("iscsi alloc ep, OOM.\n"); diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c index 31ec429104e2..4baf1dbb8e92 100644 --- a/drivers/scsi/qedi/qedi_iscsi.c +++ b/drivers/scsi/qedi/qedi_iscsi.c @@ -931,7 +931,7 @@ qedi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, return ERR_PTR(-ENXIO); } - ep = iscsi_create_endpoint(sizeof(struct qedi_endpoint)); + ep = iscsi_create_endpoint(shost, sizeof(struct qedi_endpoint)); if (!ep) { QEDI_ERR(&qedi->dbg_ctx, "endpoint create fail\n"); ret = -ENOMEM; diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 005502125b27..acebf9c92c04 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1717,7 +1717,7 @@ qla4xxx_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, } ha = iscsi_host_priv(shost); - ep = iscsi_create_endpoint(sizeof(struct qla_endpoint)); + ep = iscsi_create_endpoint(shost, sizeof(struct qla_endpoint)); if (!ep) { ret = -ENOMEM; return ERR_PTR(ret); diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index be69cea9c6f8..86bafdb862a5 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -204,7 +204,7 @@ static struct attribute_group iscsi_endpoint_group = { }; struct iscsi_endpoint * -iscsi_create_endpoint(int dd_size) +iscsi_create_endpoint(struct Scsi_Host *shost, int dd_size) { struct iscsi_endpoint *ep; int err, id; @@ -230,6 +230,7 @@ iscsi_create_endpoint(int dd_size) ep->id = id; ep->dev.class = &iscsi_endpoint_class; + ep->dev.parent = &shost->shost_gendev; dev_set_name(&ep->dev, "ep-%d", id); err = device_register(&ep->dev); if (err) diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 34c03707fb6e..268ccaac1c05 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -287,6 +287,9 @@ struct iscsi_cls_session { #define iscsi_session_to_shost(_session) \ dev_to_shost(_session->dev.parent) +#define iscsi_endpoint_to_shost(_ep) \ + dev_to_shost(_ep->dev.parent) + #define starget_to_session(_stgt) \ iscsi_dev_to_session(_stgt->dev.parent) @@ -462,7 +465,8 @@ extern void iscsi_put_conn(struct iscsi_cls_conn *conn); extern void iscsi_get_conn(struct iscsi_cls_conn *conn); extern void iscsi_unblock_session(struct iscsi_cls_session *session); extern void iscsi_block_session(struct iscsi_cls_session *session); -extern struct iscsi_endpoint *iscsi_create_endpoint(int dd_size); +extern struct iscsi_endpoint *iscsi_create_endpoint(struct Scsi_Host *shost, + int dd_size); extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep); extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle); extern void iscsi_put_endpoint(struct iscsi_endpoint *ep); From patchwork Wed Feb 8 17:40:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Duncan X-Patchwork-Id: 13133484 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4C194C636D3 for ; Wed, 8 Feb 2023 17:47:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232013AbjBHRrb (ORCPT ); Wed, 8 Feb 2023 12:47:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52064 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231280AbjBHRrL (ORCPT ); Wed, 8 Feb 2023 12:47:11 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 331A353E5B; Wed, 8 Feb 2023 09:46:13 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 4CBA21FF2F; Wed, 8 Feb 2023 17:40:59 +0000 (UTC) Received: from localhost (unknown [10.163.24.10]) by relay2.suse.de (Postfix) with ESMTP id 0D1182C145; Wed, 8 Feb 2023 17:40:59 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 2C8B2CA18A; Wed, 8 Feb 2023 09:40:57 -0800 (PST) From: Lee Duncan To: linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Lee Duncan , Chris Leech , Lee Duncan Subject: [RFC PATCH 3/9] iscsi: sysfs filtering by network namespace Date: Wed, 8 Feb 2023 09:40:51 -0800 Message-Id: <1ce0ef45c40b6873f2889bbcdc1a74d7fc04e370.1675876734.git.lduncan@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan This makes the iscsi_host, iscsi_session, iscsi_connection, iscsi_iface, and iscsi_endpoint transport class devices only visible in sysfs under a matching network namespace. The network namespace for all of these objects is tracked in the iscsi_cls_host structure. Signed-off-by: Chris Leech Signed-off-by: Lee Duncan Reviewed-by: Hannes Reinecke --- drivers/scsi/scsi_transport_iscsi.c | 124 ++++++++++++++++++++++++---- include/scsi/scsi_transport_iscsi.h | 1 + 2 files changed, 110 insertions(+), 15 deletions(-) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 86bafdb862a5..2e2b291bce41 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -181,9 +181,31 @@ static void iscsi_endpoint_release(struct device *dev) kfree(ep); } +static struct net *iscsi_host_net(struct iscsi_cls_host *ihost) +{ + return ihost->netns; +} + +static struct net *iscsi_endpoint_net(struct iscsi_endpoint *ep) +{ + struct Scsi_Host *shost = iscsi_endpoint_to_shost(ep); + struct iscsi_cls_host *ihost = shost->shost_data; + + return iscsi_host_net(ihost); +} + +static const void *iscsi_endpoint_namespace(const struct device *dev) +{ + struct iscsi_endpoint *ep = iscsi_dev_to_endpoint(dev); + + return iscsi_endpoint_net(ep); +} + static struct class iscsi_endpoint_class = { .name = "iscsi_endpoint", .dev_release = iscsi_endpoint_release, + .ns_type = &net_ns_type_operations, + .namespace = iscsi_endpoint_namespace, }; static ssize_t @@ -308,10 +330,26 @@ static void iscsi_iface_release(struct device *dev) put_device(parent); } +static struct net *iscsi_iface_net(struct iscsi_iface *iface) +{ + struct Scsi_Host *shost = iscsi_iface_to_shost(iface); + struct iscsi_cls_host *ihost = shost->shost_data; + + return iscsi_host_net(ihost); +} + +static const void *iscsi_iface_namespace(const struct device *dev) +{ + struct iscsi_iface *iface = iscsi_dev_to_iface(dev); + + return iscsi_iface_net(iface); +} static struct class iscsi_iface_class = { .name = "iscsi_iface", .dev_release = iscsi_iface_release, + .ns_type = &net_ns_type_operations, + .namespace = iscsi_iface_namespace, }; #define ISCSI_IFACE_ATTR(_prefix, _name, _mode, _show, _store) \ @@ -1565,6 +1603,7 @@ static int iscsi_setup_host(struct transport_container *tc, struct device *dev, memset(ihost, 0, sizeof(*ihost)); mutex_init(&ihost->mutex); + ihost->netns = &init_net; iscsi_bsg_host_add(shost, ihost); /* ignore any bsg add error - we just can't do sgio */ @@ -1582,23 +1621,78 @@ static int iscsi_remove_host(struct transport_container *tc, return 0; } -static DECLARE_TRANSPORT_CLASS(iscsi_host_class, - "iscsi_host", - iscsi_setup_host, - iscsi_remove_host, - NULL); +#define DECLARE_TRANSPORT_CLASS_NS(cls, nm, su, rm, cfg, ns, nslookup) \ +struct transport_class cls = { \ + .class = { \ + .name = nm, \ + .ns_type = ns, \ + .namespace = nslookup, \ + }, \ + .setup = su, \ + .remove = rm, \ + .configure = cfg, \ +} + +static const void *iscsi_host_namespace(const struct device *dev) +{ + struct Scsi_Host *shost = transport_class_to_shost(dev); + struct iscsi_cls_host *ihost = shost->shost_data; + + return iscsi_host_net(ihost); +} + +static DECLARE_TRANSPORT_CLASS_NS(iscsi_host_class, + "iscsi_host", + iscsi_setup_host, + iscsi_remove_host, + NULL, + &net_ns_type_operations, + iscsi_host_namespace); -static DECLARE_TRANSPORT_CLASS(iscsi_session_class, - "iscsi_session", - NULL, - NULL, - NULL); +static struct net *iscsi_sess_net(struct iscsi_cls_session *cls_session) +{ + struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); + struct iscsi_cls_host *ihost = shost->shost_data; + + return iscsi_host_net(ihost); +} + +static const void *iscsi_sess_namespace(const struct device *dev) +{ + struct iscsi_cls_session *cls_session = transport_class_to_session(dev); + + return iscsi_sess_net(cls_session); +} + +static DECLARE_TRANSPORT_CLASS_NS(iscsi_session_class, + "iscsi_session", + NULL, + NULL, + NULL, + &net_ns_type_operations, + iscsi_sess_namespace); + +static struct net *iscsi_conn_net(struct iscsi_cls_conn *cls_conn) +{ + struct iscsi_cls_session *cls_session = iscsi_conn_to_session(cls_conn); + + return iscsi_sess_net(cls_session); +} + +static const void *iscsi_conn_namespace(const struct device *dev) +{ + struct iscsi_cls_conn *cls_conn = transport_class_to_conn(dev); + + return iscsi_conn_net(cls_conn); +} -static DECLARE_TRANSPORT_CLASS(iscsi_connection_class, - "iscsi_connection", - NULL, - NULL, - NULL); +static DECLARE_TRANSPORT_CLASS_NS(iscsi_connection_class, + "iscsi_connection", + NULL, + NULL, + NULL, + &net_ns_type_operations, + iscsi_conn_namespace); struct iscsi_net { struct sock *nls; diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 268ccaac1c05..af0c5a15f316 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -298,6 +298,7 @@ struct iscsi_cls_host { struct request_queue *bsg_q; uint32_t port_speed; uint32_t port_state; + struct net *netns; }; #define iscsi_job_to_shost(_job) \ From patchwork Wed Feb 8 17:40:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Duncan X-Patchwork-Id: 13133483 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 01FC9C05027 for ; Wed, 8 Feb 2023 17:47:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231931AbjBHRr3 (ORCPT ); Wed, 8 Feb 2023 12:47:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49810 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231288AbjBHRrL (ORCPT ); Wed, 8 Feb 2023 12:47:11 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 94022521D6; Wed, 8 Feb 2023 09:46:11 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 5350C1FF38; Wed, 8 Feb 2023 17:40:59 +0000 (UTC) Received: from localhost (unknown [10.163.24.10]) by relay2.suse.de (Postfix) with ESMTP id 17E782C146; Wed, 8 Feb 2023 17:40:59 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 31E4ACA18C; Wed, 8 Feb 2023 09:40:57 -0800 (PST) From: Lee Duncan To: linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Lee Duncan , Chris Leech Subject: [RFC PATCH 4/9] iscsi: make all iSCSI netlink multicast namespace aware Date: Wed, 8 Feb 2023 09:40:52 -0800 Message-Id: <587c492ffafb3090ec9e28b7d247fcc7e2141251.1675876734.git.lduncan@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan Make use of the per-net netlink sockets. Responses are sent back on the same socket/namespace the request was received on. Async events are reported on the socket/namespace stored in the iscsi_cls_host associated with the event. Signed-off-by: Chris Leech Signed-off-by: Lee Duncan Reviewed-by: Hannes Reinecke --- drivers/scsi/scsi_transport_iscsi.c | 92 +++++++++++++++++++---------- 1 file changed, 60 insertions(+), 32 deletions(-) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 2e2b291bce41..230b43d34c5f 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -2653,8 +2653,8 @@ iscsi_if_transport_lookup(struct iscsi_transport *tt) } static int -iscsi_multicast_netns(struct net *net, struct sk_buff *skb, - uint32_t group, gfp_t gfp) +iscsi_multicast_skb(struct net *net, struct sk_buff *skb, + uint32_t group, gfp_t gfp) { struct sock *nls; struct iscsi_net *isn; @@ -2665,17 +2665,10 @@ iscsi_multicast_netns(struct net *net, struct sk_buff *skb, } static int -iscsi_multicast_skb(struct sk_buff *skb, uint32_t group, gfp_t gfp) -{ - return iscsi_multicast_netns(&init_net, skb, group, gfp); -} - -static int -iscsi_unicast_skb(struct sk_buff *skb, u32 portid) +iscsi_unicast_skb(struct net *net, struct sk_buff *skb, u32 portid) { struct sock *nls; struct iscsi_net *isn; - struct net *net = &init_net; isn = net_generic(net, iscsi_net_id); nls = isn->nls; @@ -2690,6 +2683,7 @@ int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, struct iscsi_uevent *ev; char *pdu; struct iscsi_internal *priv; + struct net *net; int len = nlmsg_total_size(sizeof(*ev) + sizeof(struct iscsi_hdr) + data_size); @@ -2716,7 +2710,8 @@ int iscsi_recv_pdu(struct iscsi_cls_conn *conn, struct iscsi_hdr *hdr, memcpy(pdu, hdr, sizeof(struct iscsi_hdr)); memcpy(pdu + sizeof(struct iscsi_hdr), data, data_size); - return iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); + net = iscsi_conn_net(conn); + return iscsi_multicast_skb(net, skb, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); } EXPORT_SYMBOL_GPL(iscsi_recv_pdu); @@ -2727,6 +2722,7 @@ int iscsi_offload_mesg(struct Scsi_Host *shost, struct nlmsghdr *nlh; struct sk_buff *skb; struct iscsi_uevent *ev; + struct net *net; int len = nlmsg_total_size(sizeof(*ev) + data_size); skb = alloc_skb(len, GFP_ATOMIC); @@ -2751,7 +2747,8 @@ int iscsi_offload_mesg(struct Scsi_Host *shost, memcpy((char *)ev + sizeof(*ev), data, data_size); - return iscsi_multicast_skb(skb, ISCSI_NL_GRP_UIP, GFP_ATOMIC); + net = iscsi_host_net(shost->shost_data); + return iscsi_multicast_skb(net, skb, ISCSI_NL_GRP_UIP, GFP_ATOMIC); } EXPORT_SYMBOL_GPL(iscsi_offload_mesg); @@ -2761,6 +2758,7 @@ void iscsi_conn_error_event(struct iscsi_cls_conn *conn, enum iscsi_err error) struct sk_buff *skb; struct iscsi_uevent *ev; struct iscsi_internal *priv; + struct net *net; int len = nlmsg_total_size(sizeof(*ev)); unsigned long flags; int state; @@ -2808,7 +2806,8 @@ void iscsi_conn_error_event(struct iscsi_cls_conn *conn, enum iscsi_err error) ev->r.connerror.cid = conn->cid; ev->r.connerror.sid = iscsi_conn_get_sid(conn); - iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); + net = iscsi_conn_net(conn); + iscsi_multicast_skb(net, skb, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); iscsi_cls_conn_printk(KERN_INFO, conn, "detected conn error (%d)\n", error); @@ -2822,6 +2821,7 @@ void iscsi_conn_login_event(struct iscsi_cls_conn *conn, struct sk_buff *skb; struct iscsi_uevent *ev; struct iscsi_internal *priv; + struct net *net; int len = nlmsg_total_size(sizeof(*ev)); priv = iscsi_if_transport_lookup(conn->transport); @@ -2842,7 +2842,9 @@ void iscsi_conn_login_event(struct iscsi_cls_conn *conn, ev->r.conn_login.state = state; ev->r.conn_login.cid = conn->cid; ev->r.conn_login.sid = iscsi_conn_get_sid(conn); - iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); + + net = iscsi_conn_net(conn); + iscsi_multicast_skb(net, skb, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); iscsi_cls_conn_printk(KERN_INFO, conn, "detected conn login (%d)\n", state); @@ -2853,11 +2855,17 @@ void iscsi_post_host_event(uint32_t host_no, struct iscsi_transport *transport, enum iscsi_host_event_code code, uint32_t data_size, uint8_t *data) { + struct Scsi_Host *shost; + struct net *net; struct nlmsghdr *nlh; struct sk_buff *skb; struct iscsi_uevent *ev; int len = nlmsg_total_size(sizeof(*ev) + data_size); + shost = scsi_host_lookup(host_no); + if (!shost) + return; + skb = alloc_skb(len, GFP_NOIO); if (!skb) { printk(KERN_ERR "gracefully ignored host event (%d):%d OOM\n", @@ -2876,7 +2884,9 @@ void iscsi_post_host_event(uint32_t host_no, struct iscsi_transport *transport, if (data_size) memcpy((char *)ev + sizeof(*ev), data, data_size); - iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_NOIO); + net = iscsi_host_net(shost->shost_data); + scsi_host_put(shost); + iscsi_multicast_skb(net, skb, ISCSI_NL_GRP_ISCSID, GFP_NOIO); } EXPORT_SYMBOL_GPL(iscsi_post_host_event); @@ -2884,11 +2894,17 @@ void iscsi_ping_comp_event(uint32_t host_no, struct iscsi_transport *transport, uint32_t status, uint32_t pid, uint32_t data_size, uint8_t *data) { + struct Scsi_Host *shost; + struct net *net; struct nlmsghdr *nlh; struct sk_buff *skb; struct iscsi_uevent *ev; int len = nlmsg_total_size(sizeof(*ev) + data_size); + shost = scsi_host_lookup(host_no); + if (!shost) + return; + skb = alloc_skb(len, GFP_NOIO); if (!skb) { printk(KERN_ERR "gracefully ignored ping comp: OOM\n"); @@ -2905,12 +2921,15 @@ void iscsi_ping_comp_event(uint32_t host_no, struct iscsi_transport *transport, ev->r.ping_comp.data_size = data_size; memcpy((char *)ev + sizeof(*ev), data, data_size); - iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_NOIO); + net = iscsi_host_net(shost->shost_data); + scsi_host_put(shost); + iscsi_multicast_skb(net, skb, ISCSI_NL_GRP_ISCSID, GFP_NOIO); } EXPORT_SYMBOL_GPL(iscsi_ping_comp_event); static int -iscsi_if_send_reply(u32 portid, int type, void *payload, int size) +iscsi_if_send_reply(struct net *net, u32 portid, int type, + void *payload, int size) { struct sk_buff *skb; struct nlmsghdr *nlh; @@ -2924,11 +2943,11 @@ iscsi_if_send_reply(u32 portid, int type, void *payload, int size) nlh = __nlmsg_put(skb, 0, 0, type, (len - sizeof(*nlh)), 0); memcpy(nlmsg_data(nlh), payload, size); - return iscsi_unicast_skb(skb, portid); + return iscsi_unicast_skb(net, skb, portid); } static int -iscsi_if_get_stats(struct iscsi_transport *transport, struct nlmsghdr *nlh) +iscsi_if_get_stats(struct net *net, struct iscsi_transport *transport, struct nlmsghdr *nlh) { struct iscsi_uevent *ev = nlmsg_data(nlh); struct iscsi_stats *stats; @@ -2985,7 +3004,7 @@ iscsi_if_get_stats(struct iscsi_transport *transport, struct nlmsghdr *nlh) skb_trim(skbstat, NLMSG_ALIGN(actual_size)); nlhstat->nlmsg_len = actual_size; - err = iscsi_multicast_skb(skbstat, ISCSI_NL_GRP_ISCSID, + err = iscsi_multicast_skb(net, skbstat, ISCSI_NL_GRP_ISCSID, GFP_ATOMIC); } while (err < 0 && err != -ECONNREFUSED); @@ -3005,6 +3024,7 @@ int iscsi_session_event(struct iscsi_cls_session *session, struct iscsi_uevent *ev; struct sk_buff *skb; struct nlmsghdr *nlh; + struct net *net; int rc, len = nlmsg_total_size(sizeof(*ev)); priv = iscsi_if_transport_lookup(session->transport); @@ -3049,7 +3069,8 @@ int iscsi_session_event(struct iscsi_cls_session *session, * this will occur if the daemon is not up, so we just warn * the user and when the daemon is restarted it will handle it */ - rc = iscsi_multicast_skb(skb, ISCSI_NL_GRP_ISCSID, GFP_KERNEL); + net = iscsi_sess_net(session); + rc = iscsi_multicast_skb(net, skb, ISCSI_NL_GRP_ISCSID, GFP_KERNEL); if (rc == -ESRCH) iscsi_cls_session_printk(KERN_ERR, session, "Cannot notify userspace of session " @@ -3412,7 +3433,8 @@ iscsi_send_ping(struct iscsi_transport *transport, struct iscsi_uevent *ev) } static int -iscsi_get_chap(struct iscsi_transport *transport, struct nlmsghdr *nlh) +iscsi_get_chap(struct net *net, struct iscsi_transport *transport, + struct nlmsghdr *nlh) { struct iscsi_uevent *ev = nlmsg_data(nlh); struct Scsi_Host *shost = NULL; @@ -3471,7 +3493,7 @@ iscsi_get_chap(struct iscsi_transport *transport, struct nlmsghdr *nlh) skb_trim(skbchap, NLMSG_ALIGN(actual_size)); nlhchap->nlmsg_len = actual_size; - err = iscsi_multicast_skb(skbchap, ISCSI_NL_GRP_ISCSID, + err = iscsi_multicast_skb(net, skbchap, ISCSI_NL_GRP_ISCSID, GFP_KERNEL); } while (err < 0 && err != -ECONNREFUSED); @@ -3818,7 +3840,8 @@ static int iscsi_logout_flashnode_sid(struct iscsi_transport *transport, } static int -iscsi_get_host_stats(struct iscsi_transport *transport, struct nlmsghdr *nlh) +iscsi_get_host_stats(struct net *net, struct iscsi_transport *transport, + struct nlmsghdr *nlh) { struct iscsi_uevent *ev = nlmsg_data(nlh); struct Scsi_Host *shost = NULL; @@ -3878,8 +3901,8 @@ iscsi_get_host_stats(struct iscsi_transport *transport, struct nlmsghdr *nlh) skb_trim(skbhost_stats, NLMSG_ALIGN(actual_size)); nlhhost_stats->nlmsg_len = actual_size; - err = iscsi_multicast_skb(skbhost_stats, ISCSI_NL_GRP_ISCSID, - GFP_KERNEL); + err = iscsi_multicast_skb(net, skbhost_stats, + ISCSI_NL_GRP_ISCSID, GFP_KERNEL); } while (err < 0 && err != -ECONNREFUSED); exit_host_stats: @@ -4001,7 +4024,8 @@ static int iscsi_if_transport_conn(struct iscsi_transport *transport, } static int -iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group) +iscsi_if_recv_msg(struct net *net, struct sk_buff *skb, + struct nlmsghdr *nlh, uint32_t *group) { int err = 0; u32 portid; @@ -4096,7 +4120,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group) err = iscsi_if_transport_conn(transport, nlh); break; case ISCSI_UEVENT_GET_STATS: - err = iscsi_if_get_stats(transport, nlh); + err = iscsi_if_get_stats(net, transport, nlh); break; case ISCSI_UEVENT_TRANSPORT_EP_CONNECT: case ISCSI_UEVENT_TRANSPORT_EP_POLL: @@ -4121,7 +4145,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group) err = iscsi_send_ping(transport, ev); break; case ISCSI_UEVENT_GET_CHAP: - err = iscsi_get_chap(transport, nlh); + err = iscsi_get_chap(net, transport, nlh); break; case ISCSI_UEVENT_DELETE_CHAP: err = iscsi_delete_chap(transport, ev); @@ -4152,7 +4176,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group) nlmsg_attrlen(nlh, sizeof(*ev))); break; case ISCSI_UEVENT_GET_HOST_STATS: - err = iscsi_get_host_stats(transport, nlh); + err = iscsi_get_host_stats(net, transport, nlh); break; default: err = -ENOSYS; @@ -4170,6 +4194,8 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group) static void iscsi_if_rx(struct sk_buff *skb) { + struct sock *sk = skb->sk; + struct net *net = sock_net(sk); u32 portid = NETLINK_CB(skb).portid; mutex_lock(&rx_queue_mutex); @@ -4192,7 +4218,7 @@ iscsi_if_rx(struct sk_buff *skb) if (rlen > skb->len) rlen = skb->len; - err = iscsi_if_recv_msg(skb, nlh, &group); + err = iscsi_if_recv_msg(net, skb, nlh, &group); if (err) { ev->type = ISCSI_KEVENT_IF_ERROR; ev->iferror = err; @@ -4208,7 +4234,9 @@ iscsi_if_rx(struct sk_buff *skb) break; if (ev->type == ISCSI_UEVENT_GET_CHAP && !err) break; - err = iscsi_if_send_reply(portid, nlh->nlmsg_type, + if (ev->type == ISCSI_UEVENT_GET_HOST_STATS && !err) + break; + err = iscsi_if_send_reply(net, portid, nlh->nlmsg_type, ev, sizeof(*ev)); if (err == -EAGAIN && --retries < 0) { printk(KERN_WARNING "Send reply failed, error %d\n", err); From patchwork Wed Feb 8 17:40:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Duncan X-Patchwork-Id: 13133481 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 773E0C636CC for ; Wed, 8 Feb 2023 17:45:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232016AbjBHRpe (ORCPT ); Wed, 8 Feb 2023 12:45:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232571AbjBHRpM (ORCPT ); Wed, 8 Feb 2023 12:45:12 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 220FF1ABF6; Wed, 8 Feb 2023 09:44:04 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 698D91FFB2; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: from localhost (unknown [10.163.24.10]) by relay2.suse.de (Postfix) with ESMTP id 2B4242C143; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 3D19DCA18E; Wed, 8 Feb 2023 09:40:57 -0800 (PST) From: Lee Duncan To: linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Lee Duncan , Chris Leech Subject: [RFC PATCH 5/9] iscsi: set netns for iscsi_tcp hosts Date: Wed, 8 Feb 2023 09:40:53 -0800 Message-Id: <566c527d12f6ed56eeb40952fef7431a0ccdc78f.1675876735.git.lduncan@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan This lets iscsi_tcp operate in multiple namespaces. It uses current during session creation to find the net namespace, but it might be better to manage to pass it along from the iscsi netlink socket. Signed-off-by: Chris Leech Signed-off-by: Lee Duncan Signed-off-by: Chris Leech --- drivers/scsi/iscsi_tcp.c | 7 +++++++ drivers/scsi/scsi_transport_iscsi.c | 7 ++++++- include/scsi/scsi_transport_iscsi.h | 1 + 3 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c index 0454d94e8cf0..22e7a5c93627 100644 --- a/drivers/scsi/iscsi_tcp.c +++ b/drivers/scsi/iscsi_tcp.c @@ -1069,6 +1069,11 @@ static int iscsi_sw_tcp_slave_configure(struct scsi_device *sdev) return 0; } +static struct net *iscsi_sw_tcp_netns(struct Scsi_Host *shost) +{ + return current->nsproxy->net_ns; +} + static struct scsi_host_template iscsi_sw_tcp_sht = { .module = THIS_MODULE, .name = "iSCSI Initiator over TCP/IP", @@ -1124,6 +1129,8 @@ static struct iscsi_transport iscsi_sw_tcp_transport = { .alloc_pdu = iscsi_sw_tcp_pdu_alloc, /* recovery */ .session_recovery_timedout = iscsi_session_recovery_timedout, + /* net namespace */ + .get_netns = iscsi_sw_tcp_netns, }; static int __init iscsi_sw_tcp_init(void) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 230b43d34c5f..996a9abfa1f5 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1600,10 +1600,15 @@ static int iscsi_setup_host(struct transport_container *tc, struct device *dev, { struct Scsi_Host *shost = dev_to_shost(dev); struct iscsi_cls_host *ihost = shost->shost_data; + struct iscsi_internal *priv = to_iscsi_internal(shost->transportt); + struct iscsi_transport *transport = priv->iscsi_transport; memset(ihost, 0, sizeof(*ihost)); mutex_init(&ihost->mutex); - ihost->netns = &init_net; + if (transport->get_netns) + ihost->netns = transport->get_netns(shost); + else + ihost->netns = &init_net; iscsi_bsg_host_add(shost, ihost); /* ignore any bsg add error - we just can't do sgio */ diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index af0c5a15f316..f8885d0c37d8 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -156,6 +156,7 @@ struct iscsi_transport { int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess); int (*get_host_stats) (struct Scsi_Host *shost, char *buf, int len); u8 (*check_protection)(struct iscsi_task *task, sector_t *sector); + struct net *(*get_netns)(struct Scsi_Host *shost); }; /* From patchwork Wed Feb 8 17:40:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Duncan X-Patchwork-Id: 13133482 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75211C05027 for ; Wed, 8 Feb 2023 17:45:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231890AbjBHRpq (ORCPT ); Wed, 8 Feb 2023 12:45:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51918 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232609AbjBHRpP (ORCPT ); Wed, 8 Feb 2023 12:45:15 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ECF951EBD4; Wed, 8 Feb 2023 09:44:06 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 929601FFDC; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: from localhost (unknown [10.163.24.10]) by relay2.suse.de (Postfix) with ESMTP id 29F142C142; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 45DB9CA190; Wed, 8 Feb 2023 09:40:57 -0800 (PST) From: Lee Duncan To: linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Lee Duncan , Chris Leech Subject: [RFC PATCH 6/9] iscsi: check net namespace for all iscsi lookup Date: Wed, 8 Feb 2023 09:40:54 -0800 Message-Id: X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan All internal lookups of iSCSI transport objects need to be filtered by net namespace. Signed-off-by: Chris Leech Signed-off-by: Lee Duncan Reviewed-by: Hannes Reinecke --- drivers/infiniband/ulp/iser/iscsi_iser.c | 5 +- drivers/scsi/be2iscsi/be_iscsi.c | 4 +- drivers/scsi/bnx2i/bnx2i_iscsi.c | 4 +- drivers/scsi/cxgbi/libcxgbi.c | 4 +- drivers/scsi/qedi/qedi_iscsi.c | 4 +- drivers/scsi/qla4xxx/ql4_os.c | 8 +- drivers/scsi/scsi_transport_iscsi.c | 202 ++++++++++++++--------- include/scsi/scsi_transport_iscsi.h | 5 +- 8 files changed, 149 insertions(+), 87 deletions(-) diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index d38c909b462f..348bafb55e51 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -456,15 +456,18 @@ static int iscsi_iser_conn_bind(struct iscsi_cls_session *cls_session, struct iscsi_conn *conn = cls_conn->dd_data; struct iser_conn *iser_conn; struct iscsi_endpoint *ep; + struct net *net; int error; error = iscsi_conn_bind(cls_session, cls_conn, is_leading); if (error) return error; + /* the transport ep handle comes from user space so it must be * verified against the global ib connections list */ - ep = iscsi_lookup_endpoint(transport_eph); + net = iscsi_sess_net(cls_session); + ep = iscsi_lookup_endpoint(net, transport_eph); if (!ep) { iser_err("can't bind eph %llx\n", (unsigned long long)transport_eph); diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c index c893d193f5ef..10329ed6a9a8 100644 --- a/drivers/scsi/be2iscsi/be_iscsi.c +++ b/drivers/scsi/be2iscsi/be_iscsi.c @@ -183,8 +183,10 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session, struct iscsi_endpoint *ep; uint16_t cri_index; int rc = 0; + struct net *net; - ep = iscsi_lookup_endpoint(transport_fd); + net = iscsi_sess_net(cls_session); + ep = iscsi_lookup_endpoint(net, transport_fd); if (!ep) return -EINVAL; diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c index ac63e93e07c6..e889c5585c87 100644 --- a/drivers/scsi/bnx2i/bnx2i_iscsi.c +++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c @@ -1411,9 +1411,11 @@ static int bnx2i_conn_bind(struct iscsi_cls_session *cls_session, struct bnx2i_hba *hba = iscsi_host_priv(shost); struct bnx2i_endpoint *bnx2i_ep; struct iscsi_endpoint *ep; + struct net *net; int ret_code; - ep = iscsi_lookup_endpoint(transport_fd); + net = iscsi_sess_net(cls_session); + ep = iscsi_lookup_endpoint(net, transport_fd); if (!ep) return -EINVAL; /* diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index 94edf8e1fb0c..b492b57dbb2a 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -2676,9 +2676,11 @@ int cxgbi_bind_conn(struct iscsi_cls_session *cls_session, struct iscsi_endpoint *ep; struct cxgbi_endpoint *cep; struct cxgbi_sock *csk; + struct net *net; int err; - ep = iscsi_lookup_endpoint(transport_eph); + net = iscsi_sess_net(cls_session); + ep = iscsi_lookup_endpoint(net, transport_eph); if (!ep) return -EINVAL; diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c index 4baf1dbb8e92..fc3406e6f82c 100644 --- a/drivers/scsi/qedi/qedi_iscsi.c +++ b/drivers/scsi/qedi/qedi_iscsi.c @@ -389,8 +389,10 @@ static int qedi_conn_bind(struct iscsi_cls_session *cls_session, struct qedi_endpoint *qedi_ep; struct iscsi_endpoint *ep; int rc = 0; + struct net *net; - ep = iscsi_lookup_endpoint(transport_fd); + net = iscsi_sess_net(cls_session); + ep = iscsi_lookup_endpoint(net, transport_fd); if (!ep) return -EINVAL; diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index acebf9c92c04..390b89bdec8f 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -3217,6 +3217,7 @@ static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, struct ddb_entry *ddb_entry; struct scsi_qla_host *ha; struct iscsi_session *sess; + struct net *net; sess = cls_session->dd_data; ddb_entry = sess->dd_data; @@ -3225,11 +3226,12 @@ static int qla4xxx_conn_bind(struct iscsi_cls_session *cls_session, DEBUG2(ql4_printk(KERN_INFO, ha, "%s: sid = %d, cid = %d\n", __func__, cls_session->sid, cls_conn->cid)); - if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) - return -EINVAL; - ep = iscsi_lookup_endpoint(transport_fd); + net = iscsi_sess_net(cls_session); + ep = iscsi_lookup_endpoint(net, transport_fd); if (!ep) return -EINVAL; + if (iscsi_conn_bind(cls_session, cls_conn, is_leading)) + return -EINVAL; conn = cls_conn->dd_data; qla_conn = conn->dd_data; qla_conn->qla_ep = ep->dd_data; diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 996a9abfa1f5..008adde4dc51 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -301,12 +301,16 @@ EXPORT_SYMBOL_GPL(iscsi_put_endpoint); * * Caller must do a iscsi_put_endpoint. */ -struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle) +struct iscsi_endpoint *iscsi_lookup_endpoint(struct net *net, u64 handle) { struct iscsi_endpoint *ep; + struct net *ns; mutex_lock(&iscsi_ep_idr_mutex); ep = idr_find(&iscsi_ep_idr, handle); + ns = iscsi_endpoint_net(ep); + if (ns != net) + ep = NULL; if (!ep) goto unlock; @@ -1654,13 +1658,14 @@ static DECLARE_TRANSPORT_CLASS_NS(iscsi_host_class, &net_ns_type_operations, iscsi_host_namespace); -static struct net *iscsi_sess_net(struct iscsi_cls_session *cls_session) +struct net *iscsi_sess_net(struct iscsi_cls_session *cls_session) { struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); struct iscsi_cls_host *ihost = shost->shost_data; return iscsi_host_net(ihost); } +EXPORT_SYMBOL_GPL(iscsi_sess_net); static const void *iscsi_sess_namespace(const struct device *dev) { @@ -1721,14 +1726,19 @@ static uint32_t iscsi_conn_get_sid(struct iscsi_cls_conn *conn) /* * Returns the matching session to a given sid */ -static struct iscsi_cls_session *iscsi_session_lookup(uint32_t sid) +static struct iscsi_cls_session *iscsi_session_lookup(struct net *net, + uint32_t sid) { unsigned long flags; struct iscsi_cls_session *sess; + struct net *ns; spin_lock_irqsave(&sesslock, flags); list_for_each_entry(sess, &sesslist, sess_list) { if (sess->sid == sid) { + ns = iscsi_sess_net(sess); + if (ns != net) + continue; spin_unlock_irqrestore(&sesslock, flags); return sess; } @@ -1740,14 +1750,19 @@ static struct iscsi_cls_session *iscsi_session_lookup(uint32_t sid) /* * Returns the matching connection to a given sid / cid tuple */ -static struct iscsi_cls_conn *iscsi_conn_lookup(uint32_t sid, uint32_t cid) +static struct iscsi_cls_conn *iscsi_conn_lookup(struct net *net, uint32_t sid, + uint32_t cid) { unsigned long flags; struct iscsi_cls_conn *conn; + struct net *ns; spin_lock_irqsave(&connlock, flags); list_for_each_entry(conn, &connlist, conn_list) { if ((conn->cid == cid) && (iscsi_conn_get_sid(conn) == sid)) { + ns = iscsi_conn_net(conn); + if (ns != net) + continue; spin_unlock_irqrestore(&connlock, flags); return conn; } @@ -2971,7 +2986,7 @@ iscsi_if_get_stats(struct net *net, struct iscsi_transport *transport, struct nl if (!priv) return -EINVAL; - conn = iscsi_conn_lookup(ev->u.get_stats.sid, ev->u.get_stats.cid); + conn = iscsi_conn_lookup(net, ev->u.get_stats.sid, ev->u.get_stats.cid); if (!conn) return -EEXIST; @@ -3113,12 +3128,13 @@ iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_endpoint *ep, } static int -iscsi_if_create_conn(struct iscsi_transport *transport, struct iscsi_uevent *ev) +iscsi_if_create_conn(struct net *net, struct iscsi_transport *transport, + struct iscsi_uevent *ev) { struct iscsi_cls_conn *conn; struct iscsi_cls_session *session; - session = iscsi_session_lookup(ev->u.c_conn.sid); + session = iscsi_session_lookup(net, ev->u.c_conn.sid); if (!session) { printk(KERN_ERR "iscsi: invalid session %d.\n", ev->u.c_conn.sid); @@ -3140,11 +3156,12 @@ iscsi_if_create_conn(struct iscsi_transport *transport, struct iscsi_uevent *ev) } static int -iscsi_if_destroy_conn(struct iscsi_transport *transport, struct iscsi_uevent *ev) +iscsi_if_destroy_conn(struct net *net, struct iscsi_transport *transport, + struct iscsi_uevent *ev) { struct iscsi_cls_conn *conn; - conn = iscsi_conn_lookup(ev->u.d_conn.sid, ev->u.d_conn.cid); + conn = iscsi_conn_lookup(net, ev->u.d_conn.sid, ev->u.d_conn.cid); if (!conn) return -EINVAL; @@ -3158,7 +3175,8 @@ iscsi_if_destroy_conn(struct iscsi_transport *transport, struct iscsi_uevent *ev } static int -iscsi_if_set_param(struct iscsi_transport *transport, struct iscsi_uevent *ev) +iscsi_if_set_param(struct net *net, struct iscsi_transport *transport, + struct iscsi_uevent *ev) { char *data = (char*)ev + sizeof(*ev); struct iscsi_cls_conn *conn; @@ -3168,8 +3186,8 @@ iscsi_if_set_param(struct iscsi_transport *transport, struct iscsi_uevent *ev) if (ev->u.set_param.len > PAGE_SIZE) return -EINVAL; - session = iscsi_session_lookup(ev->u.set_param.sid); - conn = iscsi_conn_lookup(ev->u.set_param.sid, ev->u.set_param.cid); + session = iscsi_session_lookup(net, ev->u.set_param.sid); + conn = iscsi_conn_lookup(net, ev->u.set_param.sid, ev->u.set_param.cid); if (!conn || !session) return -EINVAL; @@ -3192,7 +3210,21 @@ iscsi_if_set_param(struct iscsi_transport *transport, struct iscsi_uevent *ev) return err; } -static int iscsi_if_ep_connect(struct iscsi_transport *transport, +static struct Scsi_Host *iscsi_host_lookup(struct net *net, + unsigned short hostnum) +{ + struct Scsi_Host *shost; + + shost = scsi_host_lookup(hostnum); + if (shost && iscsi_host_net(shost->shost_data) != net) { + scsi_host_put(shost); + shost = NULL; + } + return shost; +} + +static int iscsi_if_ep_connect(struct net *net, + struct iscsi_transport *transport, struct iscsi_uevent *ev, int msg_type) { struct iscsi_endpoint *ep; @@ -3204,7 +3236,8 @@ static int iscsi_if_ep_connect(struct iscsi_transport *transport, return -EINVAL; if (msg_type == ISCSI_UEVENT_TRANSPORT_EP_CONNECT_THROUGH_HOST) { - shost = scsi_host_lookup(ev->u.ep_connect_through_host.host_no); + shost = iscsi_host_lookup(net, + ev->u.ep_connect_through_host.host_no); if (!shost) { printk(KERN_ERR "ep connect failed. Could not find " "host no %u\n", @@ -3229,7 +3262,8 @@ static int iscsi_if_ep_connect(struct iscsi_transport *transport, return err; } -static int iscsi_if_ep_disconnect(struct iscsi_transport *transport, +static int iscsi_if_ep_disconnect(struct net *net, + struct iscsi_transport *transport, u64 ep_handle) { struct iscsi_cls_conn *conn; @@ -3238,7 +3272,7 @@ static int iscsi_if_ep_disconnect(struct iscsi_transport *transport, if (!transport->ep_disconnect) return -EINVAL; - ep = iscsi_lookup_endpoint(ep_handle); + ep = iscsi_lookup_endpoint(net, ep_handle); if (!ep) return -EINVAL; @@ -3261,7 +3295,7 @@ static int iscsi_if_ep_disconnect(struct iscsi_transport *transport, } static int -iscsi_if_transport_ep(struct iscsi_transport *transport, +iscsi_if_transport_ep(struct net *net, struct iscsi_transport *transport, struct iscsi_uevent *ev, int msg_type) { struct iscsi_endpoint *ep; @@ -3270,13 +3304,13 @@ iscsi_if_transport_ep(struct iscsi_transport *transport, switch (msg_type) { case ISCSI_UEVENT_TRANSPORT_EP_CONNECT_THROUGH_HOST: case ISCSI_UEVENT_TRANSPORT_EP_CONNECT: - rc = iscsi_if_ep_connect(transport, ev, msg_type); + rc = iscsi_if_ep_connect(net, transport, ev, msg_type); break; case ISCSI_UEVENT_TRANSPORT_EP_POLL: if (!transport->ep_poll) return -EINVAL; - ep = iscsi_lookup_endpoint(ev->u.ep_poll.ep_handle); + ep = iscsi_lookup_endpoint(net, ev->u.ep_poll.ep_handle); if (!ep) return -EINVAL; @@ -3285,7 +3319,7 @@ iscsi_if_transport_ep(struct iscsi_transport *transport, iscsi_put_endpoint(ep); break; case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT: - rc = iscsi_if_ep_disconnect(transport, + rc = iscsi_if_ep_disconnect(net, transport, ev->u.ep_disconnect.ep_handle); break; } @@ -3293,7 +3327,7 @@ iscsi_if_transport_ep(struct iscsi_transport *transport, } static int -iscsi_tgt_dscvr(struct iscsi_transport *transport, +iscsi_tgt_dscvr(struct net *net, struct iscsi_transport *transport, struct iscsi_uevent *ev) { struct Scsi_Host *shost; @@ -3303,7 +3337,7 @@ iscsi_tgt_dscvr(struct iscsi_transport *transport, if (!transport->tgt_dscvr) return -EINVAL; - shost = scsi_host_lookup(ev->u.tgt_dscvr.host_no); + shost = iscsi_host_lookup(net, ev->u.tgt_dscvr.host_no); if (!shost) { printk(KERN_ERR "target discovery could not find host no %u\n", ev->u.tgt_dscvr.host_no); @@ -3319,7 +3353,7 @@ iscsi_tgt_dscvr(struct iscsi_transport *transport, } static int -iscsi_set_host_param(struct iscsi_transport *transport, +iscsi_set_host_param(struct net *net, struct iscsi_transport *transport, struct iscsi_uevent *ev) { char *data = (char*)ev + sizeof(*ev); @@ -3332,7 +3366,7 @@ iscsi_set_host_param(struct iscsi_transport *transport, if (ev->u.set_host_param.len > PAGE_SIZE) return -EINVAL; - shost = scsi_host_lookup(ev->u.set_host_param.host_no); + shost = iscsi_host_lookup(net, ev->u.set_host_param.host_no); if (!shost) { printk(KERN_ERR "set_host_param could not find host no %u\n", ev->u.set_host_param.host_no); @@ -3346,7 +3380,8 @@ iscsi_set_host_param(struct iscsi_transport *transport, } static int -iscsi_set_path(struct iscsi_transport *transport, struct iscsi_uevent *ev) +iscsi_set_path(struct net *net, struct iscsi_transport *transport, + struct iscsi_uevent *ev) { struct Scsi_Host *shost; struct iscsi_path *params; @@ -3355,7 +3390,7 @@ iscsi_set_path(struct iscsi_transport *transport, struct iscsi_uevent *ev) if (!transport->set_path) return -ENOSYS; - shost = scsi_host_lookup(ev->u.set_path.host_no); + shost = iscsi_host_lookup(net, ev->u.set_path.host_no); if (!shost) { printk(KERN_ERR "set path could not find host no %u\n", ev->u.set_path.host_no); @@ -3388,7 +3423,7 @@ static int iscsi_session_has_conns(int sid) } static int -iscsi_set_iface_params(struct iscsi_transport *transport, +iscsi_set_iface_params(struct net *net, struct iscsi_transport *transport, struct iscsi_uevent *ev, uint32_t len) { char *data = (char *)ev + sizeof(*ev); @@ -3398,7 +3433,7 @@ iscsi_set_iface_params(struct iscsi_transport *transport, if (!transport->set_iface_param) return -ENOSYS; - shost = scsi_host_lookup(ev->u.set_iface_params.host_no); + shost = iscsi_host_lookup(net, ev->u.set_iface_params.host_no); if (!shost) { printk(KERN_ERR "set_iface_params could not find host no %u\n", ev->u.set_iface_params.host_no); @@ -3411,7 +3446,8 @@ iscsi_set_iface_params(struct iscsi_transport *transport, } static int -iscsi_send_ping(struct iscsi_transport *transport, struct iscsi_uevent *ev) +iscsi_send_ping(struct net *net, struct iscsi_transport *transport, + struct iscsi_uevent *ev) { struct Scsi_Host *shost; struct sockaddr *dst_addr; @@ -3420,7 +3456,7 @@ iscsi_send_ping(struct iscsi_transport *transport, struct iscsi_uevent *ev) if (!transport->send_ping) return -ENOSYS; - shost = scsi_host_lookup(ev->u.iscsi_ping.host_no); + shost = iscsi_host_lookup(net, ev->u.iscsi_ping.host_no); if (!shost) { printk(KERN_ERR "iscsi_ping could not find host no %u\n", ev->u.iscsi_ping.host_no); @@ -3462,7 +3498,7 @@ iscsi_get_chap(struct net *net, struct iscsi_transport *transport, chap_buf_size = (ev->u.get_chap.num_entries * sizeof(*chap_rec)); len = nlmsg_total_size(sizeof(*ev) + chap_buf_size); - shost = scsi_host_lookup(ev->u.get_chap.host_no); + shost = iscsi_host_lookup(net, ev->u.get_chap.host_no); if (!shost) { printk(KERN_ERR "%s: failed. Could not find host no %u\n", __func__, ev->u.get_chap.host_no); @@ -3507,7 +3543,7 @@ iscsi_get_chap(struct net *net, struct iscsi_transport *transport, return err; } -static int iscsi_set_chap(struct iscsi_transport *transport, +static int iscsi_set_chap(struct net *net, struct iscsi_transport *transport, struct iscsi_uevent *ev, uint32_t len) { char *data = (char *)ev + sizeof(*ev); @@ -3517,7 +3553,7 @@ static int iscsi_set_chap(struct iscsi_transport *transport, if (!transport->set_chap) return -ENOSYS; - shost = scsi_host_lookup(ev->u.set_path.host_no); + shost = iscsi_host_lookup(net, ev->u.set_path.host_no); if (!shost) { pr_err("%s could not find host no %u\n", __func__, ev->u.set_path.host_no); @@ -3529,7 +3565,7 @@ static int iscsi_set_chap(struct iscsi_transport *transport, return err; } -static int iscsi_delete_chap(struct iscsi_transport *transport, +static int iscsi_delete_chap(struct net *net, struct iscsi_transport *transport, struct iscsi_uevent *ev) { struct Scsi_Host *shost; @@ -3538,7 +3574,7 @@ static int iscsi_delete_chap(struct iscsi_transport *transport, if (!transport->delete_chap) return -ENOSYS; - shost = scsi_host_lookup(ev->u.delete_chap.host_no); + shost = iscsi_host_lookup(net, ev->u.delete_chap.host_no); if (!shost) { printk(KERN_ERR "%s could not find host no %u\n", __func__, ev->u.delete_chap.host_no); @@ -3574,7 +3610,8 @@ char *iscsi_get_discovery_parent_name(int parent_type) } EXPORT_SYMBOL_GPL(iscsi_get_discovery_parent_name); -static int iscsi_set_flashnode_param(struct iscsi_transport *transport, +static int iscsi_set_flashnode_param(struct net *net, + struct iscsi_transport *transport, struct iscsi_uevent *ev, uint32_t len) { char *data = (char *)ev + sizeof(*ev); @@ -3590,7 +3627,7 @@ static int iscsi_set_flashnode_param(struct iscsi_transport *transport, goto exit_set_fnode; } - shost = scsi_host_lookup(ev->u.set_flashnode.host_no); + shost = iscsi_host_lookup(net, ev->u.set_flashnode.host_no); if (!shost) { pr_err("%s could not find host no %u\n", __func__, ev->u.set_flashnode.host_no); @@ -3627,7 +3664,8 @@ static int iscsi_set_flashnode_param(struct iscsi_transport *transport, return err; } -static int iscsi_new_flashnode(struct iscsi_transport *transport, +static int iscsi_new_flashnode(struct net *net, + struct iscsi_transport *transport, struct iscsi_uevent *ev, uint32_t len) { char *data = (char *)ev + sizeof(*ev); @@ -3640,7 +3678,7 @@ static int iscsi_new_flashnode(struct iscsi_transport *transport, goto exit_new_fnode; } - shost = scsi_host_lookup(ev->u.new_flashnode.host_no); + shost = iscsi_host_lookup(net, ev->u.new_flashnode.host_no); if (!shost) { pr_err("%s could not find host no %u\n", __func__, ev->u.new_flashnode.host_no); @@ -3662,7 +3700,8 @@ static int iscsi_new_flashnode(struct iscsi_transport *transport, return err; } -static int iscsi_del_flashnode(struct iscsi_transport *transport, +static int iscsi_del_flashnode(struct net *net, + struct iscsi_transport *transport, struct iscsi_uevent *ev) { struct Scsi_Host *shost; @@ -3675,7 +3714,7 @@ static int iscsi_del_flashnode(struct iscsi_transport *transport, goto exit_del_fnode; } - shost = scsi_host_lookup(ev->u.del_flashnode.host_no); + shost = iscsi_host_lookup(net, ev->u.del_flashnode.host_no); if (!shost) { pr_err("%s could not find host no %u\n", __func__, ev->u.del_flashnode.host_no); @@ -3702,7 +3741,8 @@ static int iscsi_del_flashnode(struct iscsi_transport *transport, return err; } -static int iscsi_login_flashnode(struct iscsi_transport *transport, +static int iscsi_login_flashnode(struct net *net, + struct iscsi_transport *transport, struct iscsi_uevent *ev) { struct Scsi_Host *shost; @@ -3717,7 +3757,7 @@ static int iscsi_login_flashnode(struct iscsi_transport *transport, goto exit_login_fnode; } - shost = scsi_host_lookup(ev->u.login_flashnode.host_no); + shost = iscsi_host_lookup(net, ev->u.login_flashnode.host_no); if (!shost) { pr_err("%s could not find host no %u\n", __func__, ev->u.login_flashnode.host_no); @@ -3754,7 +3794,8 @@ static int iscsi_login_flashnode(struct iscsi_transport *transport, return err; } -static int iscsi_logout_flashnode(struct iscsi_transport *transport, +static int iscsi_logout_flashnode(struct net *net, + struct iscsi_transport *transport, struct iscsi_uevent *ev) { struct Scsi_Host *shost; @@ -3769,7 +3810,7 @@ static int iscsi_logout_flashnode(struct iscsi_transport *transport, goto exit_logout_fnode; } - shost = scsi_host_lookup(ev->u.logout_flashnode.host_no); + shost = iscsi_host_lookup(net, ev->u.logout_flashnode.host_no); if (!shost) { pr_err("%s could not find host no %u\n", __func__, ev->u.logout_flashnode.host_no); @@ -3807,7 +3848,8 @@ static int iscsi_logout_flashnode(struct iscsi_transport *transport, return err; } -static int iscsi_logout_flashnode_sid(struct iscsi_transport *transport, +static int iscsi_logout_flashnode_sid(struct net *net, + struct iscsi_transport *transport, struct iscsi_uevent *ev) { struct Scsi_Host *shost; @@ -3819,7 +3861,7 @@ static int iscsi_logout_flashnode_sid(struct iscsi_transport *transport, goto exit_logout_sid; } - shost = scsi_host_lookup(ev->u.logout_flashnode_sid.host_no); + shost = iscsi_host_lookup(net, ev->u.logout_flashnode_sid.host_no); if (!shost) { pr_err("%s could not find host no %u\n", __func__, ev->u.logout_flashnode.host_no); @@ -3827,7 +3869,7 @@ static int iscsi_logout_flashnode_sid(struct iscsi_transport *transport, goto put_host; } - session = iscsi_session_lookup(ev->u.logout_flashnode_sid.sid); + session = iscsi_session_lookup(net, ev->u.logout_flashnode_sid.sid); if (!session) { pr_err("%s could not find session id %u\n", __func__, ev->u.logout_flashnode_sid.sid); @@ -3868,7 +3910,7 @@ iscsi_get_host_stats(struct net *net, struct iscsi_transport *transport, host_stats_size = sizeof(struct iscsi_offload_host_stats); len = nlmsg_total_size(sizeof(*ev) + host_stats_size); - shost = scsi_host_lookup(ev->u.get_host_stats.host_no); + shost = iscsi_host_lookup(net, ev->u.get_host_stats.host_no); if (!shost) { pr_err("%s: failed. Could not find host no %u\n", __func__, ev->u.get_host_stats.host_no); @@ -3915,7 +3957,8 @@ iscsi_get_host_stats(struct net *net, struct iscsi_transport *transport, return err; } -static int iscsi_if_transport_conn(struct iscsi_transport *transport, +static int iscsi_if_transport_conn(struct net *net, + struct iscsi_transport *transport, struct nlmsghdr *nlh) { struct iscsi_uevent *ev = nlmsg_data(nlh); @@ -3927,11 +3970,11 @@ static int iscsi_if_transport_conn(struct iscsi_transport *transport, switch (nlh->nlmsg_type) { case ISCSI_UEVENT_CREATE_CONN: - return iscsi_if_create_conn(transport, ev); + return iscsi_if_create_conn(net, transport, ev); case ISCSI_UEVENT_DESTROY_CONN: - return iscsi_if_destroy_conn(transport, ev); + return iscsi_if_destroy_conn(net, transport, ev); case ISCSI_UEVENT_STOP_CONN: - conn = iscsi_conn_lookup(ev->u.stop_conn.sid, + conn = iscsi_conn_lookup(net, ev->u.stop_conn.sid, ev->u.stop_conn.cid); if (!conn) return -EINVAL; @@ -3948,14 +3991,14 @@ static int iscsi_if_transport_conn(struct iscsi_transport *transport, */ switch (nlh->nlmsg_type) { case ISCSI_UEVENT_START_CONN: - conn = iscsi_conn_lookup(ev->u.start_conn.sid, + conn = iscsi_conn_lookup(net, ev->u.start_conn.sid, ev->u.start_conn.cid); break; case ISCSI_UEVENT_BIND_CONN: - conn = iscsi_conn_lookup(ev->u.b_conn.sid, ev->u.b_conn.cid); + conn = iscsi_conn_lookup(net, ev->u.b_conn.sid, ev->u.b_conn.cid); break; case ISCSI_UEVENT_SEND_PDU: - conn = iscsi_conn_lookup(ev->u.send_pdu.sid, ev->u.send_pdu.cid); + conn = iscsi_conn_lookup(net, ev->u.send_pdu.sid, ev->u.send_pdu.cid); break; } @@ -3974,7 +4017,7 @@ static int iscsi_if_transport_conn(struct iscsi_transport *transport, switch (nlh->nlmsg_type) { case ISCSI_UEVENT_BIND_CONN: - session = iscsi_session_lookup(ev->u.b_conn.sid); + session = iscsi_session_lookup(net, ev->u.b_conn.sid); if (!session) { err = -EINVAL; break; @@ -3989,7 +4032,7 @@ static int iscsi_if_transport_conn(struct iscsi_transport *transport, if (ev->r.retcode || !transport->ep_connect) break; - ep = iscsi_lookup_endpoint(ev->u.b_conn.transport_eph); + ep = iscsi_lookup_endpoint(net, ev->u.b_conn.transport_eph); if (ep) { ep->conn = conn; conn->ep = ep; @@ -4066,8 +4109,10 @@ iscsi_if_recv_msg(struct net *net, struct sk_buff *skb, ev->u.c_session.cmds_max, ev->u.c_session.queue_depth); break; + /* MARK */ case ISCSI_UEVENT_CREATE_BOUND_SESSION: - ep = iscsi_lookup_endpoint(ev->u.c_bound_session.ep_handle); + ep = iscsi_lookup_endpoint(net, + ev->u.c_bound_session.ep_handle); if (!ep) { err = -EINVAL; break; @@ -4081,7 +4126,7 @@ iscsi_if_recv_msg(struct net *net, struct sk_buff *skb, iscsi_put_endpoint(ep); break; case ISCSI_UEVENT_DESTROY_SESSION: - session = iscsi_session_lookup(ev->u.d_session.sid); + session = iscsi_session_lookup(net, ev->u.d_session.sid); if (!session) err = -EINVAL; else if (iscsi_session_has_conns(ev->u.d_session.sid)) @@ -4090,7 +4135,7 @@ iscsi_if_recv_msg(struct net *net, struct sk_buff *skb, transport->destroy_session(session); break; case ISCSI_UEVENT_DESTROY_SESSION_ASYNC: - session = iscsi_session_lookup(ev->u.d_session.sid); + session = iscsi_session_lookup(net, ev->u.d_session.sid); if (!session) err = -EINVAL; else if (iscsi_session_has_conns(ev->u.d_session.sid)) @@ -4107,14 +4152,14 @@ iscsi_if_recv_msg(struct net *net, struct sk_buff *skb, } break; case ISCSI_UEVENT_UNBIND_SESSION: - session = iscsi_session_lookup(ev->u.d_session.sid); + session = iscsi_session_lookup(net, ev->u.d_session.sid); if (session) queue_work(session->workq, &session->unbind_work); else err = -EINVAL; break; case ISCSI_UEVENT_SET_PARAM: - err = iscsi_if_set_param(transport, ev); + err = iscsi_if_set_param(net, transport, ev); break; case ISCSI_UEVENT_CREATE_CONN: case ISCSI_UEVENT_DESTROY_CONN: @@ -4122,7 +4167,7 @@ iscsi_if_recv_msg(struct net *net, struct sk_buff *skb, case ISCSI_UEVENT_START_CONN: case ISCSI_UEVENT_BIND_CONN: case ISCSI_UEVENT_SEND_PDU: - err = iscsi_if_transport_conn(transport, nlh); + err = iscsi_if_transport_conn(net, transport, nlh); break; case ISCSI_UEVENT_GET_STATS: err = iscsi_if_get_stats(net, transport, nlh); @@ -4131,53 +4176,54 @@ iscsi_if_recv_msg(struct net *net, struct sk_buff *skb, case ISCSI_UEVENT_TRANSPORT_EP_POLL: case ISCSI_UEVENT_TRANSPORT_EP_DISCONNECT: case ISCSI_UEVENT_TRANSPORT_EP_CONNECT_THROUGH_HOST: - err = iscsi_if_transport_ep(transport, ev, nlh->nlmsg_type); + err = iscsi_if_transport_ep(net, transport, ev, + nlh->nlmsg_type); break; case ISCSI_UEVENT_TGT_DSCVR: - err = iscsi_tgt_dscvr(transport, ev); + err = iscsi_tgt_dscvr(net, transport, ev); break; case ISCSI_UEVENT_SET_HOST_PARAM: - err = iscsi_set_host_param(transport, ev); + err = iscsi_set_host_param(net, transport, ev); break; case ISCSI_UEVENT_PATH_UPDATE: - err = iscsi_set_path(transport, ev); + err = iscsi_set_path(net, transport, ev); break; case ISCSI_UEVENT_SET_IFACE_PARAMS: - err = iscsi_set_iface_params(transport, ev, + err = iscsi_set_iface_params(net, transport, ev, nlmsg_attrlen(nlh, sizeof(*ev))); break; case ISCSI_UEVENT_PING: - err = iscsi_send_ping(transport, ev); + err = iscsi_send_ping(net, transport, ev); break; case ISCSI_UEVENT_GET_CHAP: err = iscsi_get_chap(net, transport, nlh); break; case ISCSI_UEVENT_DELETE_CHAP: - err = iscsi_delete_chap(transport, ev); + err = iscsi_delete_chap(net, transport, ev); break; case ISCSI_UEVENT_SET_FLASHNODE_PARAMS: - err = iscsi_set_flashnode_param(transport, ev, + err = iscsi_set_flashnode_param(net, transport, ev, nlmsg_attrlen(nlh, sizeof(*ev))); break; case ISCSI_UEVENT_NEW_FLASHNODE: - err = iscsi_new_flashnode(transport, ev, + err = iscsi_new_flashnode(net, transport, ev, nlmsg_attrlen(nlh, sizeof(*ev))); break; case ISCSI_UEVENT_DEL_FLASHNODE: - err = iscsi_del_flashnode(transport, ev); + err = iscsi_del_flashnode(net, transport, ev); break; case ISCSI_UEVENT_LOGIN_FLASHNODE: - err = iscsi_login_flashnode(transport, ev); + err = iscsi_login_flashnode(net, transport, ev); break; case ISCSI_UEVENT_LOGOUT_FLASHNODE: - err = iscsi_logout_flashnode(transport, ev); + err = iscsi_logout_flashnode(net, transport, ev); break; case ISCSI_UEVENT_LOGOUT_FLASHNODE_SID: - err = iscsi_logout_flashnode_sid(transport, ev); + err = iscsi_logout_flashnode_sid(net, transport, ev); break; case ISCSI_UEVENT_SET_CHAP: - err = iscsi_set_chap(transport, ev, + err = iscsi_set_chap(net, transport, ev, nlmsg_attrlen(nlh, sizeof(*ev))); break; case ISCSI_UEVENT_GET_HOST_STATS: diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index f8885d0c37d8..9ac1bc133693 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -291,6 +291,8 @@ struct iscsi_cls_session { #define iscsi_endpoint_to_shost(_ep) \ dev_to_shost(_ep->dev.parent) +extern struct net *iscsi_sess_net(struct iscsi_cls_session *session); + #define starget_to_session(_stgt) \ iscsi_dev_to_session(_stgt->dev.parent) @@ -470,7 +472,8 @@ extern void iscsi_block_session(struct iscsi_cls_session *session); extern struct iscsi_endpoint *iscsi_create_endpoint(struct Scsi_Host *shost, int dd_size); extern void iscsi_destroy_endpoint(struct iscsi_endpoint *ep); -extern struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle); +extern struct iscsi_endpoint *iscsi_lookup_endpoint(struct net *net, + u64 handle); extern void iscsi_put_endpoint(struct iscsi_endpoint *ep); extern int iscsi_block_scsi_eh(struct scsi_cmnd *cmd); extern struct iscsi_iface *iscsi_create_iface(struct Scsi_Host *shost, From patchwork Wed Feb 8 17:40:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Duncan X-Patchwork-Id: 13133475 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 79D87C636CC for ; Wed, 8 Feb 2023 17:44:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231931AbjBHRoK (ORCPT ); Wed, 8 Feb 2023 12:44:10 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46746 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231536AbjBHRnz (ORCPT ); Wed, 8 Feb 2023 12:43:55 -0500 Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 23ACB518ED; Wed, 8 Feb 2023 09:42:14 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out2.suse.de (Postfix) with ESMTP id 65D811FF10; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: from localhost (unknown [10.163.24.10]) by relay2.suse.de (Postfix) with ESMTP id 29C222C141; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 4DD64CA192; Wed, 8 Feb 2023 09:40:57 -0800 (PST) From: Lee Duncan To: linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Lee Duncan , Chris Leech Subject: [RFC PATCH 7/9] iscsi: convert flashnode devices from bus to class Date: Wed, 8 Feb 2023 09:40:55 -0800 Message-Id: X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan The flashnode session and connection devices should be filtered by net namespace along with the iscsi_host, but we can't do that with a bus device. As these don't use any of the bus matching functionality, they make more sense as a class device anyway. Signed-off-by: Chris Leech Signed-off-by: Lee Duncan Reviewed-by: Hannes Reinecke --- drivers/scsi/qla4xxx/ql4_os.c | 2 +- drivers/scsi/scsi_transport_iscsi.c | 36 ++++++++++++----------------- include/scsi/scsi_transport_iscsi.h | 2 ++ 3 files changed, 18 insertions(+), 22 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 390b89bdec8f..18e382b6be18 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -7185,7 +7185,7 @@ static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) { struct iscsi_bus_flash_session *fnode_sess; - if (!iscsi_flashnode_bus_match(dev, NULL)) + if (!iscsi_is_flashnode_session_dev(dev)) return 0; fnode_sess = iscsi_dev_to_flash_session(dev); diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 008adde4dc51..c065763b1fc6 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1060,6 +1060,12 @@ static const struct device_type iscsi_flashnode_sess_dev_type = { .release = iscsi_flashnode_sess_release, }; +bool iscsi_is_flashnode_session_dev(struct device *dev) +{ + return dev->type == &iscsi_flashnode_sess_dev_type; +} +EXPORT_SYMBOL_GPL(iscsi_is_flashnode_session_dev); + /* flash node connection attrs show */ #define iscsi_flashnode_conn_attr_show(type, name, param) \ static ssize_t \ @@ -1246,20 +1252,8 @@ static const struct device_type iscsi_flashnode_conn_dev_type = { .release = iscsi_flashnode_conn_release, }; -static struct bus_type iscsi_flashnode_bus; - -int iscsi_flashnode_bus_match(struct device *dev, - struct device_driver *drv) -{ - if (dev->bus == &iscsi_flashnode_bus) - return 1; - return 0; -} -EXPORT_SYMBOL_GPL(iscsi_flashnode_bus_match); - -static struct bus_type iscsi_flashnode_bus = { +static struct class iscsi_flashnode_bus = { .name = "iscsi_flashnode", - .match = &iscsi_flashnode_bus_match, }; /** @@ -1290,7 +1284,7 @@ iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, fnode_sess->transport = transport; fnode_sess->target_id = index; fnode_sess->dev.type = &iscsi_flashnode_sess_dev_type; - fnode_sess->dev.bus = &iscsi_flashnode_bus; + fnode_sess->dev.class = &iscsi_flashnode_bus; fnode_sess->dev.parent = &shost->shost_gendev; dev_set_name(&fnode_sess->dev, "flashnode_sess-%u:%u", shost->host_no, index); @@ -1338,7 +1332,7 @@ iscsi_create_flashnode_conn(struct Scsi_Host *shost, fnode_conn->transport = transport; fnode_conn->dev.type = &iscsi_flashnode_conn_dev_type; - fnode_conn->dev.bus = &iscsi_flashnode_bus; + fnode_conn->dev.class = &iscsi_flashnode_bus; fnode_conn->dev.parent = &fnode_sess->dev; dev_set_name(&fnode_conn->dev, "flashnode_conn-%u:%u:0", shost->host_no, fnode_sess->target_id); @@ -1371,7 +1365,7 @@ EXPORT_SYMBOL_GPL(iscsi_create_flashnode_conn); */ static int iscsi_is_flashnode_conn_dev(struct device *dev, void *data) { - return dev->bus == &iscsi_flashnode_bus; + return dev->type == &iscsi_flashnode_conn_dev_type; } static int iscsi_destroy_flashnode_conn(struct iscsi_bus_flash_conn *fnode_conn) @@ -1385,7 +1379,7 @@ static int flashnode_match_index(struct device *dev, void *data) struct iscsi_bus_flash_session *fnode_sess = NULL; int ret = 0; - if (!iscsi_flashnode_bus_match(dev, NULL)) + if (dev->type != &iscsi_flashnode_sess_dev_type) goto exit_match_index; fnode_sess = iscsi_dev_to_flash_session(dev); @@ -1491,7 +1485,7 @@ EXPORT_SYMBOL_GPL(iscsi_destroy_flashnode_sess); static int iscsi_iter_destroy_flashnode_fn(struct device *dev, void *data) { - if (!iscsi_flashnode_bus_match(dev, NULL)) + if (dev->type != &iscsi_flashnode_sess_dev_type) return 0; iscsi_destroy_flashnode_sess(iscsi_dev_to_flash_session(dev)); @@ -5200,7 +5194,7 @@ static __init int iscsi_transport_init(void) if (err) goto unregister_conn_class; - err = bus_register(&iscsi_flashnode_bus); + err = class_register(&iscsi_flashnode_bus); if (err) goto unregister_session_class; @@ -5223,7 +5217,7 @@ static __init int iscsi_transport_init(void) unregister_pernet_subsys: unregister_pernet_subsys(&iscsi_net_ops); unregister_flashnode_bus: - bus_unregister(&iscsi_flashnode_bus); + class_unregister(&iscsi_flashnode_bus); unregister_session_class: transport_class_unregister(&iscsi_session_class); unregister_conn_class: @@ -5243,7 +5237,7 @@ static void __exit iscsi_transport_exit(void) { destroy_workqueue(iscsi_conn_cleanup_workq); unregister_pernet_subsys(&iscsi_net_ops); - bus_unregister(&iscsi_flashnode_bus); + class_unregister(&iscsi_flashnode_bus); transport_class_unregister(&iscsi_connection_class); transport_class_unregister(&iscsi_session_class); transport_class_unregister(&iscsi_host_class); diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 9ac1bc133693..580f06d1479b 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -512,6 +512,8 @@ iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, extern struct device * iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess); +extern bool iscsi_is_flashnode_session_dev(struct device *dev); + extern char * iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state); extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state); From patchwork Wed Feb 8 17:40:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Duncan X-Patchwork-Id: 13133478 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 17CD1C05027 for ; Wed, 8 Feb 2023 17:44:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231338AbjBHRoc (ORCPT ); Wed, 8 Feb 2023 12:44:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49928 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231255AbjBHRoF (ORCPT ); Wed, 8 Feb 2023 12:44:05 -0500 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1126C564B1; Wed, 8 Feb 2023 09:42:36 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 94810341CA; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: from localhost (unknown [10.163.24.10]) by relay2.suse.de (Postfix) with ESMTP id 2B4872C145; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 5BD80CA194; Wed, 8 Feb 2023 09:40:57 -0800 (PST) From: Lee Duncan To: linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Lee Duncan , Chris Leech Subject: [RFC PATCH 8/9] iscsi: rename iscsi_bus_flash_* to iscsi_flash_* Date: Wed, 8 Feb 2023 09:40:56 -0800 Message-Id: <8c1dfc1de1e0e6ba2669976b21f6f813699000c0.1675876735.git.lduncan@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan These are cleanups after the bus to class conversion for flashnode devices. Signed-off-by: Chris Leech Signed-off-by: Lee Duncan Reviewed-by: Hannes Reinecke --- drivers/scsi/qla4xxx/ql4_os.c | 52 +++++++------- drivers/scsi/scsi_transport_iscsi.c | 102 ++++++++++++++-------------- include/scsi/scsi_transport_iscsi.h | 48 ++++++------- 3 files changed, 102 insertions(+), 100 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index 18e382b6be18..8af6847773e3 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -168,20 +168,20 @@ static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type); * iSCSI Flash DDB sysfs entry points */ static int -qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn, +qla4xxx_sysfs_ddb_set_param(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn, void *data, int len); static int -qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, +qla4xxx_sysfs_ddb_get_param(struct iscsi_flash_session *fnode_sess, int param, char *buf); static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, int len); static int -qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess); -static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn); -static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn); +qla4xxx_sysfs_ddb_delete(struct iscsi_flash_session *fnode_sess); +static int qla4xxx_sysfs_ddb_login(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn); +static int qla4xxx_sysfs_ddb_logout(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn); static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess); static struct qla4_8xxx_legacy_intr_set legacy_intr[] = @@ -3494,8 +3494,8 @@ static int qla4xxx_task_xmit(struct iscsi_task *task) return -ENOSYS; } -static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, - struct iscsi_bus_flash_conn *conn, +static int qla4xxx_copy_from_fwddb_param(struct iscsi_flash_session *sess, + struct iscsi_flash_conn *conn, struct dev_db_entry *fw_ddb_entry) { unsigned long options = 0; @@ -3636,8 +3636,8 @@ static int qla4xxx_copy_from_fwddb_param(struct iscsi_bus_flash_session *sess, return rc; } -static int qla4xxx_copy_to_fwddb_param(struct iscsi_bus_flash_session *sess, - struct iscsi_bus_flash_conn *conn, +static int qla4xxx_copy_to_fwddb_param(struct iscsi_flash_session *sess, + struct iscsi_flash_conn *conn, struct dev_db_entry *fw_ddb_entry) { uint16_t options; @@ -7183,7 +7183,7 @@ static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha, **/ static int qla4xxx_sysfs_ddb_is_non_persistent(struct device *dev, void *data) { - struct iscsi_bus_flash_session *fnode_sess; + struct iscsi_flash_session *fnode_sess; if (!iscsi_is_flashnode_session_dev(dev)) return 0; @@ -7213,8 +7213,8 @@ static int qla4xxx_sysfs_ddb_tgt_create(struct scsi_qla_host *ha, struct dev_db_entry *fw_ddb_entry, uint16_t *idx, int user) { - struct iscsi_bus_flash_session *fnode_sess = NULL; - struct iscsi_bus_flash_conn *fnode_conn = NULL; + struct iscsi_flash_session *fnode_sess = NULL; + struct iscsi_flash_conn *fnode_conn = NULL; int rc = QLA_ERROR; fnode_sess = iscsi_create_flashnode_sess(ha->host, *idx, @@ -7353,8 +7353,8 @@ static int qla4xxx_sysfs_ddb_add(struct Scsi_Host *shost, const char *buf, * This writes the contents of target ddb buffer to Flash with a valid cookie * value in order to make the ddb entry persistent. **/ -static int qla4xxx_sysfs_ddb_apply(struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn) +static int qla4xxx_sysfs_ddb_apply(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); @@ -7543,8 +7543,8 @@ static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha, * * This logs in to the specified target **/ -static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn) +static int qla4xxx_sysfs_ddb_login(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); @@ -7727,8 +7727,8 @@ static int qla4xxx_sysfs_ddb_logout_sid(struct iscsi_cls_session *cls_sess) * * This performs log out from the specified target **/ -static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn) +static int qla4xxx_sysfs_ddb_logout(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); @@ -7837,12 +7837,12 @@ static int qla4xxx_sysfs_ddb_logout(struct iscsi_bus_flash_session *fnode_sess, } static int -qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, +qla4xxx_sysfs_ddb_get_param(struct iscsi_flash_session *fnode_sess, int param, char *buf) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); - struct iscsi_bus_flash_conn *fnode_conn; + struct iscsi_flash_conn *fnode_conn; struct ql4_chap_table chap_tbl; struct device *dev; int parent_type; @@ -8091,8 +8091,8 @@ qla4xxx_sysfs_ddb_get_param(struct iscsi_bus_flash_session *fnode_sess, * This sets the parameter of flash ddb entry and writes them to flash **/ static int -qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn, +qla4xxx_sysfs_ddb_set_param(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn, void *data, int len) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); @@ -8319,7 +8319,7 @@ qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess, * * This invalidates the flash ddb entry at the given index **/ -static int qla4xxx_sysfs_ddb_delete(struct iscsi_bus_flash_session *fnode_sess) +static int qla4xxx_sysfs_ddb_delete(struct iscsi_flash_session *fnode_sess) { struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess); struct scsi_qla_host *ha = to_qla_host(shost); diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index c065763b1fc6..13393c025ccb 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -854,7 +854,7 @@ static ssize_t \ show_##type##_##name(struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ - struct iscsi_bus_flash_session *fnode_sess = \ + struct iscsi_flash_session *fnode_sess = \ iscsi_dev_to_flash_session(dev);\ struct iscsi_transport *t = fnode_sess->transport; \ return t->get_flashnode_param(fnode_sess, param, buf); \ @@ -954,7 +954,7 @@ static umode_t iscsi_flashnode_sess_attr_is_visible(struct kobject *kobj, int i) { struct device *dev = container_of(kobj, struct device, kobj); - struct iscsi_bus_flash_session *fnode_sess = + struct iscsi_flash_session *fnode_sess = iscsi_dev_to_flash_session(dev); struct iscsi_transport *t = fnode_sess->transport; int param; @@ -1045,7 +1045,7 @@ static const struct attribute_group *iscsi_flashnode_sess_attr_groups[] = { static void iscsi_flashnode_sess_release(struct device *dev) { - struct iscsi_bus_flash_session *fnode_sess = + struct iscsi_flash_session *fnode_sess = iscsi_dev_to_flash_session(dev); kfree(fnode_sess->targetname); @@ -1055,7 +1055,7 @@ static void iscsi_flashnode_sess_release(struct device *dev) } static const struct device_type iscsi_flashnode_sess_dev_type = { - .name = "iscsi_flashnode_sess_dev_type", + .name = "iscsi_flashnode_sess", .groups = iscsi_flashnode_sess_attr_groups, .release = iscsi_flashnode_sess_release, }; @@ -1072,8 +1072,8 @@ static ssize_t \ show_##type##_##name(struct device *dev, struct device_attribute *attr, \ char *buf) \ { \ - struct iscsi_bus_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev);\ - struct iscsi_bus_flash_session *fnode_sess = \ + struct iscsi_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev);\ + struct iscsi_flash_session *fnode_sess = \ iscsi_flash_conn_to_flash_session(fnode_conn);\ struct iscsi_transport *t = fnode_conn->transport; \ return t->get_flashnode_param(fnode_sess, param, buf); \ @@ -1162,7 +1162,7 @@ static umode_t iscsi_flashnode_conn_attr_is_visible(struct kobject *kobj, int i) { struct device *dev = container_of(kobj, struct device, kobj); - struct iscsi_bus_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev); + struct iscsi_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev); struct iscsi_transport *t = fnode_conn->transport; int param; @@ -1238,7 +1238,7 @@ static const struct attribute_group *iscsi_flashnode_conn_attr_groups[] = { static void iscsi_flashnode_conn_release(struct device *dev) { - struct iscsi_bus_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev); + struct iscsi_flash_conn *fnode_conn = iscsi_dev_to_flash_conn(dev); kfree(fnode_conn->ipaddress); kfree(fnode_conn->redirect_ipaddr); @@ -1247,12 +1247,28 @@ static void iscsi_flashnode_conn_release(struct device *dev) } static const struct device_type iscsi_flashnode_conn_dev_type = { - .name = "iscsi_flashnode_conn_dev_type", + .name = "iscsi_flashnode_conn", .groups = iscsi_flashnode_conn_attr_groups, .release = iscsi_flashnode_conn_release, }; -static struct class iscsi_flashnode_bus = { +/** + * iscsi_is_flashnode_conn_dev - verify passed device is to be flashnode conn + * @dev: device to verify + * @data: pointer to data containing value to use for verification + * + * Verifies if the passed device is flashnode conn device + * + * Returns: + * 1 on success + * 0 on failure + */ +static int iscsi_is_flashnode_conn_dev(struct device *dev, void *data) +{ + return dev->type == &iscsi_flashnode_conn_dev_type; +} + +static struct class iscsi_flashnode = { .name = "iscsi_flashnode", }; @@ -1269,12 +1285,12 @@ static struct class iscsi_flashnode_bus = { * pointer to allocated flashnode sess on success * %NULL on failure */ -struct iscsi_bus_flash_session * +struct iscsi_flash_session * iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, struct iscsi_transport *transport, int dd_size) { - struct iscsi_bus_flash_session *fnode_sess; + struct iscsi_flash_session *fnode_sess; int err; fnode_sess = kzalloc(sizeof(*fnode_sess) + dd_size, GFP_KERNEL); @@ -1284,7 +1300,7 @@ iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, fnode_sess->transport = transport; fnode_sess->target_id = index; fnode_sess->dev.type = &iscsi_flashnode_sess_dev_type; - fnode_sess->dev.class = &iscsi_flashnode_bus; + fnode_sess->dev.class = &iscsi_flashnode; fnode_sess->dev.parent = &shost->shost_gendev; dev_set_name(&fnode_sess->dev, "flashnode_sess-%u:%u", shost->host_no, index); @@ -1317,13 +1333,13 @@ EXPORT_SYMBOL_GPL(iscsi_create_flashnode_sess); * pointer to allocated flashnode conn on success * %NULL on failure */ -struct iscsi_bus_flash_conn * +struct iscsi_flash_conn * iscsi_create_flashnode_conn(struct Scsi_Host *shost, - struct iscsi_bus_flash_session *fnode_sess, + struct iscsi_flash_session *fnode_sess, struct iscsi_transport *transport, int dd_size) { - struct iscsi_bus_flash_conn *fnode_conn; + struct iscsi_flash_conn *fnode_conn; int err; fnode_conn = kzalloc(sizeof(*fnode_conn) + dd_size, GFP_KERNEL); @@ -1332,7 +1348,7 @@ iscsi_create_flashnode_conn(struct Scsi_Host *shost, fnode_conn->transport = transport; fnode_conn->dev.type = &iscsi_flashnode_conn_dev_type; - fnode_conn->dev.class = &iscsi_flashnode_bus; + fnode_conn->dev.class = &iscsi_flashnode; fnode_conn->dev.parent = &fnode_sess->dev; dev_set_name(&fnode_conn->dev, "flashnode_conn-%u:%u:0", shost->host_no, fnode_sess->target_id); @@ -1352,23 +1368,7 @@ iscsi_create_flashnode_conn(struct Scsi_Host *shost, } EXPORT_SYMBOL_GPL(iscsi_create_flashnode_conn); -/** - * iscsi_is_flashnode_conn_dev - verify passed device is to be flashnode conn - * @dev: device to verify - * @data: pointer to data containing value to use for verification - * - * Verifies if the passed device is flashnode conn device - * - * Returns: - * 1 on success - * 0 on failure - */ -static int iscsi_is_flashnode_conn_dev(struct device *dev, void *data) -{ - return dev->type == &iscsi_flashnode_conn_dev_type; -} - -static int iscsi_destroy_flashnode_conn(struct iscsi_bus_flash_conn *fnode_conn) +static int iscsi_destroy_flashnode_conn(struct iscsi_flash_conn *fnode_conn) { device_unregister(&fnode_conn->dev); return 0; @@ -1376,10 +1376,10 @@ static int iscsi_destroy_flashnode_conn(struct iscsi_bus_flash_conn *fnode_conn) static int flashnode_match_index(struct device *dev, void *data) { - struct iscsi_bus_flash_session *fnode_sess = NULL; + struct iscsi_flash_session *fnode_sess = NULL; int ret = 0; - if (dev->type != &iscsi_flashnode_sess_dev_type) + if (!iscsi_is_flashnode_session_dev(dev)) goto exit_match_index; fnode_sess = iscsi_dev_to_flash_session(dev); @@ -1400,10 +1400,10 @@ static int flashnode_match_index(struct device *dev, void *data) * pointer to found flashnode session object on success * %NULL on failure */ -static struct iscsi_bus_flash_session * +static struct iscsi_flash_session * iscsi_get_flashnode_by_index(struct Scsi_Host *shost, uint32_t idx) { - struct iscsi_bus_flash_session *fnode_sess = NULL; + struct iscsi_flash_session *fnode_sess = NULL; struct device *dev; dev = device_find_child(&shost->shost_gendev, &idx, @@ -1447,7 +1447,7 @@ EXPORT_SYMBOL_GPL(iscsi_find_flashnode_sess); * %NULL on failure */ struct device * -iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess) +iscsi_find_flashnode_conn(struct iscsi_flash_session *fnode_sess) { return device_find_child(&fnode_sess->dev, NULL, iscsi_is_flashnode_conn_dev); @@ -1469,7 +1469,7 @@ static int iscsi_iter_destroy_flashnode_conn_fn(struct device *dev, void *data) * Deletes the flashnode session entry and all children flashnode connection * entries from sysfs */ -void iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess) +void iscsi_destroy_flashnode_sess(struct iscsi_flash_session *fnode_sess) { int err; @@ -1485,7 +1485,7 @@ EXPORT_SYMBOL_GPL(iscsi_destroy_flashnode_sess); static int iscsi_iter_destroy_flashnode_fn(struct device *dev, void *data) { - if (dev->type != &iscsi_flashnode_sess_dev_type) + if (!iscsi_is_flashnode_session_dev(dev)) return 0; iscsi_destroy_flashnode_sess(iscsi_dev_to_flash_session(dev)); @@ -3610,8 +3610,8 @@ static int iscsi_set_flashnode_param(struct net *net, { char *data = (char *)ev + sizeof(*ev); struct Scsi_Host *shost; - struct iscsi_bus_flash_session *fnode_sess; - struct iscsi_bus_flash_conn *fnode_conn; + struct iscsi_flash_session *fnode_sess; + struct iscsi_flash_conn *fnode_conn; struct device *dev; uint32_t idx; int err = 0; @@ -3699,7 +3699,7 @@ static int iscsi_del_flashnode(struct net *net, struct iscsi_uevent *ev) { struct Scsi_Host *shost; - struct iscsi_bus_flash_session *fnode_sess; + struct iscsi_flash_session *fnode_sess; uint32_t idx; int err = 0; @@ -3740,8 +3740,8 @@ static int iscsi_login_flashnode(struct net *net, struct iscsi_uevent *ev) { struct Scsi_Host *shost; - struct iscsi_bus_flash_session *fnode_sess; - struct iscsi_bus_flash_conn *fnode_conn; + struct iscsi_flash_session *fnode_sess; + struct iscsi_flash_conn *fnode_conn; struct device *dev; uint32_t idx; int err = 0; @@ -3793,8 +3793,8 @@ static int iscsi_logout_flashnode(struct net *net, struct iscsi_uevent *ev) { struct Scsi_Host *shost; - struct iscsi_bus_flash_session *fnode_sess; - struct iscsi_bus_flash_conn *fnode_conn; + struct iscsi_flash_session *fnode_sess; + struct iscsi_flash_conn *fnode_conn; struct device *dev; uint32_t idx; int err = 0; @@ -5194,7 +5194,7 @@ static __init int iscsi_transport_init(void) if (err) goto unregister_conn_class; - err = class_register(&iscsi_flashnode_bus); + err = class_register(&iscsi_flashnode); if (err) goto unregister_session_class; @@ -5217,7 +5217,7 @@ static __init int iscsi_transport_init(void) unregister_pernet_subsys: unregister_pernet_subsys(&iscsi_net_ops); unregister_flashnode_bus: - class_unregister(&iscsi_flashnode_bus); + class_unregister(&iscsi_flashnode); unregister_session_class: transport_class_unregister(&iscsi_session_class); unregister_conn_class: @@ -5237,7 +5237,7 @@ static void __exit iscsi_transport_exit(void) { destroy_workqueue(iscsi_conn_cleanup_workq); unregister_pernet_subsys(&iscsi_net_ops); - class_unregister(&iscsi_flashnode_bus); + class_unregister(&iscsi_flashnode); transport_class_unregister(&iscsi_connection_class); transport_class_unregister(&iscsi_session_class); transport_class_unregister(&iscsi_host_class); diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index 580f06d1479b..d03d9eb5707b 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -26,8 +26,8 @@ struct iscsi_task; struct sockaddr; struct iscsi_iface; struct bsg_job; -struct iscsi_bus_flash_session; -struct iscsi_bus_flash_conn; +struct iscsi_flash_session; +struct iscsi_flash_conn; /** * struct iscsi_transport - iSCSI Transport template @@ -141,18 +141,18 @@ struct iscsi_transport { uint32_t *num_entries, char *buf); int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx); int (*set_chap) (struct Scsi_Host *shost, void *data, int len); - int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, - int param, char *buf); - int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn, - void *data, int len); - int (*new_flashnode) (struct Scsi_Host *shost, const char *buf, - int len); - int (*del_flashnode) (struct iscsi_bus_flash_session *fnode_sess); - int (*login_flashnode) (struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn); - int (*logout_flashnode) (struct iscsi_bus_flash_session *fnode_sess, - struct iscsi_bus_flash_conn *fnode_conn); + int (*get_flashnode_param)(struct iscsi_flash_session *fnode_sess, + int param, char *buf); + int (*set_flashnode_param)(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn, + void *data, int len); + int (*new_flashnode)(struct Scsi_Host *shost, const char *buf, + int len); + int (*del_flashnode)(struct iscsi_flash_session *fnode_sess); + int (*login_flashnode)(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn); + int (*logout_flashnode)(struct iscsi_flash_session *fnode_sess, + struct iscsi_flash_conn *fnode_conn); int (*logout_flashnode_sid) (struct iscsi_cls_session *cls_sess); int (*get_host_stats) (struct Scsi_Host *shost, char *buf, int len); u8 (*check_protection)(struct iscsi_task *task, sector_t *sector); @@ -332,7 +332,7 @@ struct iscsi_iface { dev_to_shost(_iface->dev.parent) -struct iscsi_bus_flash_conn { +struct iscsi_flash_conn { struct list_head conn_list; /* item in connlist */ void *dd_data; /* LLD private data */ struct iscsi_transport *transport; @@ -370,14 +370,14 @@ struct iscsi_bus_flash_conn { }; #define iscsi_dev_to_flash_conn(_dev) \ - container_of(_dev, struct iscsi_bus_flash_conn, dev) + container_of(_dev, struct iscsi_flash_conn, dev) #define iscsi_flash_conn_to_flash_session(_conn) \ iscsi_dev_to_flash_session(_conn->dev.parent) #define ISID_SIZE 6 -struct iscsi_bus_flash_session { +struct iscsi_flash_session { struct list_head sess_list; /* item in session_list */ struct iscsi_transport *transport; unsigned int target_id; @@ -432,7 +432,7 @@ struct iscsi_bus_flash_session { }; #define iscsi_dev_to_flash_session(_dev) \ - container_of(_dev, struct iscsi_bus_flash_session, dev) + container_of(_dev, struct iscsi_flash_session, dev) #define iscsi_flash_session_to_shost(_session) \ dev_to_shost(_session->dev.parent) @@ -491,17 +491,17 @@ extern struct device * iscsi_find_flashnode(struct Scsi_Host *shost, void *data, int (*fn)(struct device *dev, void *data)); -extern struct iscsi_bus_flash_session * +extern struct iscsi_flash_session * iscsi_create_flashnode_sess(struct Scsi_Host *shost, int index, struct iscsi_transport *transport, int dd_size); -extern struct iscsi_bus_flash_conn * +extern struct iscsi_flash_conn * iscsi_create_flashnode_conn(struct Scsi_Host *shost, - struct iscsi_bus_flash_session *fnode_sess, + struct iscsi_flash_session *fnode_sess, struct iscsi_transport *transport, int dd_size); extern void -iscsi_destroy_flashnode_sess(struct iscsi_bus_flash_session *fnode_sess); +iscsi_destroy_flashnode_sess(struct iscsi_flash_session *fnode_sess); extern void iscsi_destroy_all_flashnode(struct Scsi_Host *shost); extern int iscsi_flashnode_bus_match(struct device *dev, @@ -510,7 +510,9 @@ extern struct device * iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, int (*fn)(struct device *dev, void *data)); extern struct device * -iscsi_find_flashnode_conn(struct iscsi_bus_flash_session *fnode_sess); +iscsi_find_flashnode_conn(struct iscsi_flash_session *fnode_sess); + +extern bool iscsi_is_flashnode_session_dev(struct device *dev); extern bool iscsi_is_flashnode_session_dev(struct device *dev); From patchwork Wed Feb 8 17:40:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Duncan X-Patchwork-Id: 13133477 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4E612C636D7 for ; Wed, 8 Feb 2023 17:44:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231280AbjBHRoM (ORCPT ); Wed, 8 Feb 2023 12:44:12 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48934 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229972AbjBHRn5 (ORCPT ); Wed, 8 Feb 2023 12:43:57 -0500 Received: from smtp-out1.suse.de (smtp-out1.suse.de [IPv6:2001:67c:2178:6::1c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 53707521CA; Wed, 8 Feb 2023 09:42:16 -0800 (PST) Received: from relay2.suse.de (relay2.suse.de [149.44.160.134]) by smtp-out1.suse.de (Postfix) with ESMTP id 69DEA341C8; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: from localhost (unknown [10.163.24.10]) by relay2.suse.de (Postfix) with ESMTP id 2B72F2C146; Wed, 8 Feb 2023 17:41:01 +0000 (UTC) Received: by localhost (Postfix, from userid 1000) id 65949CA196; Wed, 8 Feb 2023 09:40:57 -0800 (PST) From: Lee Duncan To: linux-scsi@vger.kernel.org, open-iscsi@googlegroups.com, netdev@vger.kernel.org Cc: Lee Duncan , Chris Leech Subject: [RFC PATCH 9/9] iscsi: filter flashnode sysfs by net namespace Date: Wed, 8 Feb 2023 09:40:57 -0800 Message-Id: <283ecc31424b7f5e8e3dd68aa2283fcd109de145.1675876736.git.lduncan@suse.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org From: Lee Duncan This finishes the net namespace support for flashnode sysfs devices. Signed-off-by: Chris Leech Signed-off-by: Lee Duncan Reviewed-by: Hannes Reinecke --- drivers/scsi/scsi_transport_iscsi.c | 34 +++++++++++++++++++++++++++++ include/scsi/scsi_transport_iscsi.h | 4 ---- 2 files changed, 34 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 13393c025ccb..9a176ea0d866 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -1268,8 +1268,42 @@ static int iscsi_is_flashnode_conn_dev(struct device *dev, void *data) return dev->type == &iscsi_flashnode_conn_dev_type; } +static struct net *iscsi_flashnode_sess_net(struct iscsi_flash_session *f_sess) +{ + struct Scsi_Host *shost = iscsi_flash_session_to_shost(f_sess); + struct iscsi_cls_host *ihost = shost->shost_data; + + return iscsi_host_net(ihost); +} + +static struct net *iscsi_flashnode_conn_net(struct iscsi_flash_conn *f_conn) +{ + struct iscsi_flash_session *f_sess = + iscsi_flash_conn_to_flash_session(f_conn); + + return iscsi_flashnode_sess_net(f_sess); +} + +static const void *iscsi_flashnode_namespace(const struct device *dev) +{ + struct iscsi_flash_conn *f_conn; + struct iscsi_flash_session *f_sess; + struct device *dev_tmp = (struct device *)dev; + + if (iscsi_is_flashnode_conn_dev(dev_tmp, NULL)) { + f_conn = iscsi_dev_to_flash_conn(dev); + return iscsi_flashnode_conn_net(f_conn); + } else if (iscsi_is_flashnode_session_dev(dev_tmp)) { + f_sess = iscsi_dev_to_flash_session(dev); + return iscsi_flashnode_sess_net(f_sess); + } + return NULL; +} + static struct class iscsi_flashnode = { .name = "iscsi_flashnode", + .ns_type = &net_ns_type_operations, + .namespace = iscsi_flashnode_namespace, }; /** diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h index d03d9eb5707b..0c3fd690ecf8 100644 --- a/include/scsi/scsi_transport_iscsi.h +++ b/include/scsi/scsi_transport_iscsi.h @@ -504,8 +504,6 @@ extern void iscsi_destroy_flashnode_sess(struct iscsi_flash_session *fnode_sess); extern void iscsi_destroy_all_flashnode(struct Scsi_Host *shost); -extern int iscsi_flashnode_bus_match(struct device *dev, - struct device_driver *drv); extern struct device * iscsi_find_flashnode_sess(struct Scsi_Host *shost, void *data, int (*fn)(struct device *dev, void *data)); @@ -514,8 +512,6 @@ iscsi_find_flashnode_conn(struct iscsi_flash_session *fnode_sess); extern bool iscsi_is_flashnode_session_dev(struct device *dev); -extern bool iscsi_is_flashnode_session_dev(struct device *dev); - extern char * iscsi_get_ipaddress_state_name(enum iscsi_ipaddress_state port_state); extern char *iscsi_get_router_state_name(enum iscsi_router_state router_state);