All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jason Gunthorpe <jgg@nvidia.com>
To: Doug Ledford <dledford@redhat.com>, linux-rdma@vger.kernel.org
Cc: Greg KH <gregkh@linuxfoundation.org>,
	Kees Cook <keescook@chromium.org>,
	Nathan Chancellor <nathan@kernel.org>
Subject: [PATCH 04/13] RDMA/core: Split gid_attrs related sysfs from add_port()
Date: Mon, 17 May 2021 13:47:32 -0300	[thread overview]
Message-ID: <4-v1-34c90fa45f1c+3c7b0-port_sysfs_jgg@nvidia.com> (raw)
In-Reply-To: <0-v1-34c90fa45f1c+3c7b0-port_sysfs_jgg@nvidia.com>

The gid_attrs directory is a dedicated kobj nested under the port,
construct/destruct it with its own pair of functions for
understandability. This is much more readable than having it weirdly
inlined out of order into the add_port() function.

Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/infiniband/core/sysfs.c | 160 ++++++++++++++++++--------------
 1 file changed, 89 insertions(+), 71 deletions(-)

diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 114fecda97648e..d2a089a6f66639 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -1178,6 +1178,85 @@ struct rdma_hw_stats *ib_get_hw_stats_port(struct ib_device *ibdev,
 	return ibdev->port_data[port_num].sysfs->hw_stats_data->stats;
 }
 
+/*
+ * Create the sysfs:
+ *  ibp0s9/ports/XX/gid_attrs/{ndevs,types}/YYY
+ * YYY is the gid table index in decimal
+ */
+static int setup_gid_attrs(struct ib_port *port,
+			   const struct ib_port_attr *attr)
+{
+	struct gid_attr_group *gid_attr_group;
+	int ret;
+	int i;
+
+	gid_attr_group = kzalloc(sizeof(*gid_attr_group), GFP_KERNEL);
+	if (!gid_attr_group)
+		return -ENOMEM;
+
+	gid_attr_group->port = port;
+	ret = kobject_init_and_add(&gid_attr_group->kobj, &gid_attr_type,
+				   &port->kobj, "gid_attrs");
+	if (ret)
+		goto err_put_gid_attrs;
+
+	gid_attr_group->ndev.name = "ndevs";
+	gid_attr_group->ndev.attrs =
+		alloc_group_attrs(show_port_gid_attr_ndev, attr->gid_tbl_len);
+	if (!gid_attr_group->ndev.attrs) {
+		ret = -ENOMEM;
+		goto err_put_gid_attrs;
+	}
+
+	ret = sysfs_create_group(&gid_attr_group->kobj, &gid_attr_group->ndev);
+	if (ret)
+		goto err_free_gid_ndev;
+
+	gid_attr_group->type.name = "types";
+	gid_attr_group->type.attrs = alloc_group_attrs(
+		show_port_gid_attr_gid_type, attr->gid_tbl_len);
+	if (!gid_attr_group->type.attrs) {
+		ret = -ENOMEM;
+		goto err_remove_gid_ndev;
+	}
+
+	ret = sysfs_create_group(&gid_attr_group->kobj, &gid_attr_group->type);
+	if (ret)
+		goto err_free_gid_type;
+
+	port->gid_attr_group = gid_attr_group;
+	return 0;
+
+err_free_gid_type:
+	for (i = 0; i < attr->gid_tbl_len; ++i)
+		kfree(gid_attr_group->type.attrs[i]);
+
+	kfree(gid_attr_group->type.attrs);
+	gid_attr_group->type.attrs = NULL;
+err_remove_gid_ndev:
+	sysfs_remove_group(&gid_attr_group->kobj, &gid_attr_group->ndev);
+err_free_gid_ndev:
+	for (i = 0; i < attr->gid_tbl_len; ++i)
+		kfree(gid_attr_group->ndev.attrs[i]);
+
+	kfree(gid_attr_group->ndev.attrs);
+	gid_attr_group->ndev.attrs = NULL;
+err_put_gid_attrs:
+	kobject_put(&gid_attr_group->kobj);
+	return ret;
+}
+
+static void destroy_gid_attrs(struct ib_port *port)
+{
+	struct gid_attr_group *gid_attr_group = port->gid_attr_group;
+
+	sysfs_remove_group(&gid_attr_group->kobj,
+			   &gid_attr_group->ndev);
+	sysfs_remove_group(&gid_attr_group->kobj,
+			   &gid_attr_group->type);
+	kobject_put(&gid_attr_group->kobj);
+}
+
 static int add_port(struct ib_core_device *coredev, int port_num)
 {
 	struct ib_device *device = rdma_device_to_ibdev(&coredev->dev);
@@ -1204,23 +1283,11 @@ static int add_port(struct ib_core_device *coredev, int port_num)
 	if (ret)
 		goto err_put;
 
-	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)
-		goto err_put_gid_attrs;
-
 	if (device->ops.process_mad && is_full_dev) {
 		p->pma_table = get_counter_table(device, port_num);
 		ret = sysfs_create_group(&p->kobj, p->pma_table);
 		if (ret)
-			goto err_put_gid_attrs;
+			goto err_put;
 	}
 
 	p->gid_group.name  = "gids";
@@ -1234,37 +1301,11 @@ static int add_port(struct ib_core_device *coredev, 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;
-
 	if (attr.pkey_tbl_len) {
 		p->pkey_group = kzalloc(sizeof(*p->pkey_group), GFP_KERNEL);
 		if (!p->pkey_group) {
 			ret = -ENOMEM;
-			goto err_remove_gid_type;
+			goto err_remove_gid;
 		}
 
 		p->pkey_group->name  = "pkeys";
@@ -1290,11 +1331,14 @@ static int add_port(struct ib_core_device *coredev, int port_num)
 		if (ret && ret != -EOPNOTSUPP)
 			goto err_remove_pkey;
 	}
+	ret = setup_gid_attrs(p, &attr);
+	if (ret)
+		goto err_remove_stats;
 
 	if (device->ops.init_port && is_full_dev) {
 		ret = device->ops.init_port(device, port_num, &p->kobj);
 		if (ret)
-			goto err_remove_stats;
+			goto err_remove_gid_attrs;
 	}
 
 	list_add_tail(&p->kobj.entry, &coredev->port_list);
@@ -1304,6 +1348,9 @@ static int add_port(struct ib_core_device *coredev, int port_num)
 	kobject_uevent(&p->kobj, KOBJ_ADD);
 	return 0;
 
+err_remove_gid_attrs:
+	destroy_gid_attrs(p);
+
 err_remove_stats:
 	destroy_hw_port_stats(p);
 
@@ -1323,28 +1370,6 @@ static int add_port(struct ib_core_device *coredev, int port_num)
 err_free_pkey_group:
 	kfree(p->pkey_group);
 
-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);
 
@@ -1359,9 +1384,6 @@ static int add_port(struct ib_core_device *coredev, int port_num)
 	if (p->pma_table)
 		sysfs_remove_group(&p->kobj, p->pma_table);
 
-err_put_gid_attrs:
-	kobject_put(&p->gid_attr_group->kobj);
-
 err_put:
 	kobject_put(&p->kobj);
 	return ret;
@@ -1498,11 +1520,7 @@ void ib_free_port_attrs(struct ib_core_device *coredev)
 		if (port->pkey_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);
+		destroy_gid_attrs(port);
 		kobject_put(p);
 	}
 
-- 
2.31.1


  parent reply	other threads:[~2021-05-17 16:48 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-17 16:47 [PATCH 00/13] Reorganize sysfs file creation for struct ib_devices Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 01/13] RDMA: Split the alloc_hw_stats() ops to port and device variants Jason Gunthorpe
2021-05-17 23:06   ` Saleem, Shiraz
2021-05-17 23:10     ` Jason Gunthorpe
2021-05-18  0:18       ` Saleem, Shiraz
2021-05-18  0:20         ` Jason Gunthorpe
2021-05-18 21:58           ` Saleem, Shiraz
2021-05-19 12:25             ` Jason Gunthorpe
2021-05-19 16:50               ` Saleem, Shiraz
2021-05-18  3:49   ` Mark Zhang
2021-05-19  1:10     ` Saleem, Shiraz
2021-05-20 16:29     ` Jason Gunthorpe
2021-05-19 11:29   ` Gal Pressman
2021-05-19 13:44     ` Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 02/13] RDMA/core: Replace the ib_port_data hw_stats pointers with a ib_port pointer Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 03/13] RDMA/core: Split port and device counter sysfs attributes Jason Gunthorpe
2021-05-17 16:47 ` Jason Gunthorpe [this message]
2021-05-17 16:47 ` [PATCH 05/13] RDMA/core: Simplify how the gid_attrs sysfs is created Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 06/13] RDMA/core: Simplify how the port " Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 07/13] RDMA/core: Create the device hw_counters through the normal groups mechanism Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 08/13] RDMA/core: Remove the kobject_uevent() NOP Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 09/13] RDMA/core: Expose the ib port sysfs attribute machinery Jason Gunthorpe
2021-05-17 17:12   ` Greg KH
2021-05-17 17:31     ` Jason Gunthorpe
2021-05-17 17:37       ` Greg KH
2021-05-17 16:47 ` [PATCH 10/13] RDMA/cm: Use an attribute_group on the ib_port_attribute intead of kobj's Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 11/13] RDMA/qib: Use attributes for the port sysfs Jason Gunthorpe
2021-05-17 17:11   ` Greg KH
2021-05-17 17:13     ` Jason Gunthorpe
2021-05-17 17:31       ` Greg KH
2021-05-17 18:44         ` Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 12/13] RDMA/hfi1: " Jason Gunthorpe
2021-05-17 16:47 ` [PATCH 13/13] RDMA: Change ops->init_port to ops->get_port_groups Jason Gunthorpe
2021-05-18 23:07 ` [PATCH 00/13] Reorganize sysfs file creation for struct ib_devices Nathan Chancellor
2021-05-19 13:46   ` Jason Gunthorpe

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=4-v1-34c90fa45f1c+3c7b0-port_sysfs_jgg@nvidia.com \
    --to=jgg@nvidia.com \
    --cc=dledford@redhat.com \
    --cc=gregkh@linuxfoundation.org \
    --cc=keescook@chromium.org \
    --cc=linux-rdma@vger.kernel.org \
    --cc=nathan@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.