From patchwork Thu Oct 15 16:07:06 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matan Barak X-Patchwork-Id: 7407671 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 9F303BEEA4 for ; Thu, 15 Oct 2015 16:10:24 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 73B242061B for ; Thu, 15 Oct 2015 16:10:23 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B7D8E2073C for ; Thu, 15 Oct 2015 16:10:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753167AbbJOQKV (ORCPT ); Thu, 15 Oct 2015 12:10:21 -0400 Received: from [193.47.165.129] ([193.47.165.129]:58117 "EHLO mellanox.co.il" rhost-flags-FAIL-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752224AbbJOQKU (ORCPT ); Thu, 15 Oct 2015 12:10:20 -0400 Received: from Internal Mail-Server by MTLPINE1 (envelope-from matanb@mellanox.com) with ESMTPS (AES256-SHA encrypted); 15 Oct 2015 18:09:18 +0200 Received: from rsws33.mtr.labs.mlnx (dev-r-vrt-064.mtr.labs.mlnx [10.212.64.1]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id t9FG9ISe005807; Thu, 15 Oct 2015 19:09:18 +0300 From: Matan Barak To: Doug Ledford Cc: linux-rdma@vger.kernel.org, Or Gerlitz , Jason Gunthorpe , Matan Barak , Eran Ben Elisha , Somnath Kotur Subject: [PATCH for-next V1 3/9] IB/core: Add gid attributes to sysfs Date: Thu, 15 Oct 2015 19:07:06 +0300 Message-Id: <1444925232-13598-4-git-send-email-matanb@mellanox.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1444925232-13598-1-git-send-email-matanb@mellanox.com> References: <1444925232-13598-1-git-send-email-matanb@mellanox.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch set adds attributes of net device and gid type to each GID in the GID table. Users that use verbs directly need to specify the GID index. Since the same GID could have different types or associated net devices, users should have the ability to query the associated GID attributes. Adding these attributes to sysfs. Signed-off-by: Matan Barak --- drivers/infiniband/core/sysfs.c | 184 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 182 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index b1f37d4..4d5d87a 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -37,12 +37,22 @@ #include #include #include +#include #include +struct ib_port; + +struct gid_attr_group { + struct ib_port *port; + struct kobject kobj; + struct attribute_group ndev; + struct attribute_group type; +}; struct ib_port { struct kobject kobj; struct ib_device *ibdev; + struct gid_attr_group *gid_attr_group; struct attribute_group gid_group; struct attribute_group pkey_group; u8 port_num; @@ -84,6 +94,24 @@ static const struct sysfs_ops port_sysfs_ops = { .show = port_attr_show }; +static ssize_t gid_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + struct port_attribute *port_attr = + container_of(attr, struct port_attribute, attr); + struct ib_port *p = container_of(kobj, struct gid_attr_group, + kobj)->port; + + if (!port_attr->show) + return -EIO; + + return port_attr->show(p, port_attr, buf); +} + +static const struct sysfs_ops gid_attr_sysfs_ops = { + .show = gid_attr_show +}; + static ssize_t state_show(struct ib_port *p, struct port_attribute *unused, char *buf) { @@ -281,6 +309,46 @@ static struct attribute *port_default_attrs[] = { NULL }; +static size_t print_ndev(struct ib_gid_attr *gid_attr, char *buf) +{ + if (!gid_attr->ndev) + return -EINVAL; + + return sprintf(buf, "%s\n", gid_attr->ndev->name); +} + +static size_t print_gid_type(struct ib_gid_attr *gid_attr, char *buf) +{ + return sprintf(buf, "%s\n", ib_cache_gid_type_str(gid_attr->gid_type)); +} + +static ssize_t _show_port_gid_attr(struct ib_port *p, + struct port_attribute *attr, + char *buf, + size_t (*print)(struct ib_gid_attr *gid_attr, + char *buf)) +{ + struct port_table_attribute *tab_attr = + container_of(attr, struct port_table_attribute, attr); + union ib_gid gid; + struct ib_gid_attr gid_attr = {}; + ssize_t ret; + va_list args; + + ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid, + &gid_attr); + if (ret) + goto err; + + ret = print(&gid_attr, buf); + +err: + if (gid_attr.ndev) + dev_put(gid_attr.ndev); + va_end(args); + return ret; +} + static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, char *buf) { @@ -296,6 +364,19 @@ static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr, return sprintf(buf, "%pI6\n", gid.raw); } +static ssize_t show_port_gid_attr_ndev(struct ib_port *p, + struct port_attribute *attr, char *buf) +{ + return _show_port_gid_attr(p, attr, buf, print_ndev); +} + +static ssize_t show_port_gid_attr_gid_type(struct ib_port *p, + struct port_attribute *attr, + char *buf) +{ + return _show_port_gid_attr(p, attr, buf, print_gid_type); +} + static ssize_t show_port_pkey(struct ib_port *p, struct port_attribute *attr, char *buf) { @@ -451,12 +532,41 @@ static void ib_port_release(struct kobject *kobj) kfree(p); } +static void ib_port_gid_attr_release(struct kobject *kobj) +{ + struct gid_attr_group *g = container_of(kobj, struct gid_attr_group, + kobj); + struct attribute *a; + int i; + + if (g->ndev.attrs) { + for (i = 0; (a = g->ndev.attrs[i]); ++i) + kfree(a); + + kfree(g->ndev.attrs); + } + + if (g->type.attrs) { + for (i = 0; (a = g->type.attrs[i]); ++i) + kfree(a); + + kfree(g->type.attrs); + } + + kfree(g); +} + static struct kobj_type port_type = { .release = ib_port_release, .sysfs_ops = &port_sysfs_ops, .default_attrs = port_default_attrs }; +static struct kobj_type gid_attr_type = { + .sysfs_ops = &gid_attr_sysfs_ops, + .release = ib_port_gid_attr_release +}; + static struct attribute ** alloc_group_attrs(ssize_t (*show)(struct ib_port *, struct port_attribute *, char *buf), @@ -528,9 +638,23 @@ static int add_port(struct ib_device *device, int port_num, return ret; } + p->gid_attr_group = kzalloc(sizeof(*p->gid_attr_group), GFP_KERNEL); + if (!p->gid_attr_group) { + ret = -ENOMEM; + goto err_put; + } + + p->gid_attr_group->port = p; + ret = kobject_init_and_add(&p->gid_attr_group->kobj, &gid_attr_type, + &p->kobj, "gid_attrs"); + if (ret) { + kfree(p->gid_attr_group); + goto err_put; + } + ret = sysfs_create_group(&p->kobj, &pma_group); if (ret) - goto err_put; + goto err_put_gid_attrs; p->gid_group.name = "gids"; p->gid_group.attrs = alloc_group_attrs(show_port_gid, attr.gid_tbl_len); @@ -543,12 +667,38 @@ static int add_port(struct ib_device *device, int port_num, if (ret) goto err_free_gid; + p->gid_attr_group->ndev.name = "ndevs"; + p->gid_attr_group->ndev.attrs = alloc_group_attrs(show_port_gid_attr_ndev, + attr.gid_tbl_len); + if (!p->gid_attr_group->ndev.attrs) { + ret = -ENOMEM; + goto err_remove_gid; + } + + ret = sysfs_create_group(&p->gid_attr_group->kobj, + &p->gid_attr_group->ndev); + if (ret) + goto err_free_gid_ndev; + + p->gid_attr_group->type.name = "types"; + p->gid_attr_group->type.attrs = alloc_group_attrs(show_port_gid_attr_gid_type, + attr.gid_tbl_len); + if (!p->gid_attr_group->type.attrs) { + ret = -ENOMEM; + goto err_remove_gid_ndev; + } + + ret = sysfs_create_group(&p->gid_attr_group->kobj, + &p->gid_attr_group->type); + if (ret) + goto err_free_gid_type; + p->pkey_group.name = "pkeys"; p->pkey_group.attrs = alloc_group_attrs(show_port_pkey, attr.pkey_tbl_len); if (!p->pkey_group.attrs) { ret = -ENOMEM; - goto err_remove_gid; + goto err_remove_gid_type; } ret = sysfs_create_group(&p->kobj, &p->pkey_group); @@ -576,6 +726,28 @@ err_free_pkey: kfree(p->pkey_group.attrs); p->pkey_group.attrs = NULL; +err_remove_gid_type: + sysfs_remove_group(&p->gid_attr_group->kobj, + &p->gid_attr_group->type); + +err_free_gid_type: + for (i = 0; i < attr.gid_tbl_len; ++i) + kfree(p->gid_attr_group->type.attrs[i]); + + kfree(p->gid_attr_group->type.attrs); + p->gid_attr_group->type.attrs = NULL; + +err_remove_gid_ndev: + sysfs_remove_group(&p->gid_attr_group->kobj, + &p->gid_attr_group->ndev); + +err_free_gid_ndev: + for (i = 0; i < attr.gid_tbl_len; ++i) + kfree(p->gid_attr_group->ndev.attrs[i]); + + kfree(p->gid_attr_group->ndev.attrs); + p->gid_attr_group->ndev.attrs = NULL; + err_remove_gid: sysfs_remove_group(&p->kobj, &p->gid_group); @@ -589,6 +761,9 @@ err_free_gid: err_remove_pma: sysfs_remove_group(&p->kobj, &pma_group); +err_put_gid_attrs: + kobject_put(&p->gid_attr_group->kobj); + err_put: kobject_put(&p->kobj); return ret; @@ -803,6 +978,11 @@ static void free_port_list_attributes(struct ib_device *device) sysfs_remove_group(p, &pma_group); sysfs_remove_group(p, &port->pkey_group); sysfs_remove_group(p, &port->gid_group); + sysfs_remove_group(&port->gid_attr_group->kobj, + &port->gid_attr_group->ndev); + sysfs_remove_group(&port->gid_attr_group->kobj, + &port->gid_attr_group->type); + kobject_put(&port->gid_attr_group->kobj); kobject_put(p); }