diff options
Diffstat (limited to 'drivers/infiniband/hw/mlx4/sysfs.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/sysfs.c | 906 |
1 files changed, 906 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx4/sysfs.c b/drivers/infiniband/hw/mlx4/sysfs.c new file mode 100644 index 00000000000..cb4c66e723b --- /dev/null +++ b/drivers/infiniband/hw/mlx4/sysfs.c @@ -0,0 +1,906 @@ +/* + * Copyright (c) 2012 Mellanox Technologies. All rights reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ + +/*#include "core_priv.h"*/ +#include "mlx4_ib.h" +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/stat.h> + +#include <rdma/ib_mad.h> +/*show_admin_alias_guid returns the administratively assigned value of that GUID. + * Values returned in buf parameter string: + * 0 - requests opensm to assign a value. + * ffffffffffffffff - delete this entry. + * other - value assigned by administrator. + */ +static ssize_t show_admin_alias_guid(struct device *dev, + struct device_attribute *attr, char *buf) +{ + int record_num;/*0-15*/ + int guid_index_in_rec; /*0 - 7*/ + struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = + container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); + struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; + struct mlx4_ib_dev *mdev = port->dev; + + record_num = mlx4_ib_iov_dentry->entry_num / 8 ; + guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8 ; + + return sprintf(buf, "%llx\n", + be64_to_cpu(*(__be64 *)&mdev->sriov.alias_guid. + ports_guid[port->num - 1]. + all_rec_per_port[record_num]. + all_recs[8 * guid_index_in_rec])); +} + +/* store_admin_alias_guid stores the (new) administratively assigned value of that GUID. + * Values in buf parameter string: + * 0 - requests opensm to assign a value. + * 0xffffffffffffffff - delete this entry. + * other - guid value assigned by the administrator. + */ +static ssize_t store_admin_alias_guid(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int record_num;/*0-15*/ + int guid_index_in_rec; /*0 - 7*/ + struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = + container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); + struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; + struct mlx4_ib_dev *mdev = port->dev; + u64 sysadmin_ag_val; + + record_num = mlx4_ib_iov_dentry->entry_num / 8; + guid_index_in_rec = mlx4_ib_iov_dentry->entry_num % 8; + if (0 == record_num && 0 == guid_index_in_rec) { + pr_err("GUID 0 block 0 is RO\n"); + return count; + } + sscanf(buf, "%llx", &sysadmin_ag_val); + *(__be64 *)&mdev->sriov.alias_guid.ports_guid[port->num - 1]. + all_rec_per_port[record_num]. + all_recs[GUID_REC_SIZE * guid_index_in_rec] = + cpu_to_be64(sysadmin_ag_val); + + /* Change the state to be pending for update */ + mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].status + = MLX4_GUID_INFO_STATUS_IDLE ; + + mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method + = MLX4_GUID_INFO_RECORD_SET; + + switch (sysadmin_ag_val) { + case MLX4_GUID_FOR_DELETE_VAL: + mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].method + = MLX4_GUID_INFO_RECORD_DELETE; + mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership + = MLX4_GUID_SYSADMIN_ASSIGN; + break; + /* The sysadmin requests the SM to re-assign */ + case MLX4_NOT_SET_GUID: + mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership + = MLX4_GUID_DRIVER_ASSIGN; + break; + /* The sysadmin requests a specific value.*/ + default: + mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].ownership + = MLX4_GUID_SYSADMIN_ASSIGN; + break; + } + + /* set the record index */ + mdev->sriov.alias_guid.ports_guid[port->num - 1].all_rec_per_port[record_num].guid_indexes + = mlx4_ib_get_aguid_comp_mask_from_ix(guid_index_in_rec); + + mlx4_ib_init_alias_guid_work(mdev, port->num - 1); + + return count; +} + +static ssize_t show_port_gid(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = + container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); + struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; + struct mlx4_ib_dev *mdev = port->dev; + union ib_gid gid; + ssize_t ret; + + ret = __mlx4_ib_query_gid(&mdev->ib_dev, port->num, + mlx4_ib_iov_dentry->entry_num, &gid, 1); + if (ret) + return ret; + ret = sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n", + be16_to_cpu(((__be16 *) gid.raw)[0]), + be16_to_cpu(((__be16 *) gid.raw)[1]), + be16_to_cpu(((__be16 *) gid.raw)[2]), + be16_to_cpu(((__be16 *) gid.raw)[3]), + be16_to_cpu(((__be16 *) gid.raw)[4]), + be16_to_cpu(((__be16 *) gid.raw)[5]), + be16_to_cpu(((__be16 *) gid.raw)[6]), + be16_to_cpu(((__be16 *) gid.raw)[7])); + return ret; +} + +static ssize_t show_phys_port_pkey(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct mlx4_ib_iov_sysfs_attr *mlx4_ib_iov_dentry = + container_of(attr, struct mlx4_ib_iov_sysfs_attr, dentry); + struct mlx4_ib_iov_port *port = mlx4_ib_iov_dentry->ctx; + struct mlx4_ib_dev *mdev = port->dev; + u16 pkey; + ssize_t ret; + + ret = __mlx4_ib_query_pkey(&mdev->ib_dev, port->num, + mlx4_ib_iov_dentry->entry_num, &pkey, 1); + if (ret) + return ret; + + return sprintf(buf, "0x%04x\n", pkey); +} + +#define DENTRY_REMOVE(_dentry) \ +do { \ + sysfs_remove_file((_dentry)->kobj, &(_dentry)->dentry.attr); \ +} while (0); + +static int create_sysfs_entry(void *_ctx, struct mlx4_ib_iov_sysfs_attr *_dentry, + char *_name, struct kobject *_kobj, + ssize_t (*show)(struct device *dev, + struct device_attribute *attr, + char *buf), + ssize_t (*store)(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) + ) +{ + int ret = 0; + struct mlx4_ib_iov_sysfs_attr *vdentry = _dentry; + + vdentry->ctx = _ctx; + vdentry->dentry.show = show; + vdentry->dentry.store = store; + sysfs_attr_init(&vdentry->dentry.attr); + vdentry->dentry.attr.name = vdentry->name; + vdentry->dentry.attr.mode = 0; + vdentry->kobj = _kobj; + snprintf(vdentry->name, 15, "%s", _name); + + if (vdentry->dentry.store) + vdentry->dentry.attr.mode |= S_IWUSR; + + if (vdentry->dentry.show) + vdentry->dentry.attr.mode |= S_IRUGO; + + ret = sysfs_create_file(vdentry->kobj, &vdentry->dentry.attr); + if (ret) { + pr_err("failed to create %s\n", vdentry->dentry.attr.name); + vdentry->ctx = NULL; + return ret; + } + + return ret; +} + +int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, + struct attribute *attr) +{ + struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1]; + int ret; + + ret = sysfs_create_file(port->mcgs_parent, attr); + if (ret) + pr_err("failed to create %s\n", attr->name); + + return ret; +} + +void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, + struct attribute *attr) +{ + struct mlx4_ib_iov_port *port = &device->iov_ports[port_num - 1]; + + sysfs_remove_file(port->mcgs_parent, attr); +} + +static int add_port_entries(struct mlx4_ib_dev *device, int port_num) +{ + int i; + char buff[10]; + struct mlx4_ib_iov_port *port = NULL; + int ret = 0 ; + struct ib_port_attr attr; + + /* get the physical gid and pkey table sizes.*/ + ret = __mlx4_ib_query_port(&device->ib_dev, port_num, &attr, 1); + if (ret) + goto err; + + port = &device->iov_ports[port_num - 1]; + port->dev = device; + port->num = port_num; + /* Directory structure: + * iov - + * port num - + * admin_guids + * gids (operational) + * mcg_table + */ + port->dentr_ar = kzalloc(sizeof (struct mlx4_ib_iov_sysfs_attr_ar), + GFP_KERNEL); + if (!port->dentr_ar) { + ret = -ENOMEM; + goto err; + } + sprintf(buff, "%d", port_num); + port->cur_port = kobject_create_and_add(buff, + kobject_get(device->ports_parent)); + if (!port->cur_port) { + ret = -ENOMEM; + goto kobj_create_err; + } + /* admin GUIDs */ + port->admin_alias_parent = kobject_create_and_add("admin_guids", + kobject_get(port->cur_port)); + if (!port->admin_alias_parent) { + ret = -ENOMEM; + goto err_admin_guids; + } + for (i = 0 ; i < attr.gid_tbl_len; i++) { + sprintf(buff, "%d", i); + port->dentr_ar->dentries[i].entry_num = i; + ret = create_sysfs_entry(port, &port->dentr_ar->dentries[i], + buff, port->admin_alias_parent, + show_admin_alias_guid, store_admin_alias_guid); + if (ret) + goto err_admin_alias_parent; + } + + /* gids subdirectory (operational gids) */ + port->gids_parent = kobject_create_and_add("gids", + kobject_get(port->cur_port)); + if (!port->gids_parent) { + ret = -ENOMEM; + goto err_gids; + } + + for (i = 0 ; i < attr.gid_tbl_len; i++) { + sprintf(buff, "%d", i); + port->dentr_ar->dentries[attr.gid_tbl_len + i].entry_num = i; + ret = create_sysfs_entry(port, + &port->dentr_ar->dentries[attr.gid_tbl_len + i], + buff, + port->gids_parent, show_port_gid, NULL); + if (ret) + goto err_gids_parent; + } + + /* physical port pkey table */ + port->pkeys_parent = + kobject_create_and_add("pkeys", kobject_get(port->cur_port)); + if (!port->pkeys_parent) { + ret = -ENOMEM; + goto err_pkeys; + } + + for (i = 0 ; i < attr.pkey_tbl_len; i++) { + sprintf(buff, "%d", i); + port->dentr_ar->dentries[2 * attr.gid_tbl_len + i].entry_num = i; + ret = create_sysfs_entry(port, + &port->dentr_ar->dentries[2 * attr.gid_tbl_len + i], + buff, port->pkeys_parent, + show_phys_port_pkey, NULL); + if (ret) + goto err_pkeys_parent; + } + + /* MCGs table */ + port->mcgs_parent = + kobject_create_and_add("mcgs", kobject_get(port->cur_port)); + if (!port->mcgs_parent) { + ret = -ENOMEM; + goto err_mcgs; + } + return 0; + +err_mcgs: + kobject_put(port->cur_port); + +err_pkeys_parent: + kobject_put(port->pkeys_parent); + +err_pkeys: + kobject_put(port->cur_port); + +err_gids_parent: + kobject_put(port->gids_parent); + +err_gids: + kobject_put(port->cur_port); + +err_admin_alias_parent: + kobject_put(port->admin_alias_parent); + +err_admin_guids: + kobject_put(port->cur_port); + kobject_put(port->cur_port); /* once more for create_and_add buff */ + +kobj_create_err: + kobject_put(device->ports_parent); + kfree(port->dentr_ar); + +err: + pr_err("add_port_entries FAILED: for port:%d, error: %d\n", + port_num, ret); + return ret; +} + +static void get_name(struct mlx4_ib_dev *dev, char *name, int i, int max) +{ + char base_name[9]; + + /* pci_name format is: bus:dev:func -> xxxx:yy:zz.n */ + strlcpy(name, pci_name(dev->dev->pdev), max); + strncpy(base_name, name, 8); /*till xxxx:yy:*/ + base_name[8] = '\0'; + /* with no ARI only 3 last bits are used so when the fn is higher than 8 + * need to add it to the dev num, so count in the last number will be + * modulo 8 */ + sprintf(name, "%s%.2d.%d", base_name, (i/8), (i%8)); +} + +struct mlx4_port { + struct kobject kobj; + struct mlx4_ib_dev *dev; + struct attribute_group pkey_group; + struct attribute_group gid_group; + struct device_attribute enable_smi_admin; + struct device_attribute smi_enabled; + int slave; + u8 port_num; +}; + + +static void mlx4_port_release(struct kobject *kobj) +{ + struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); + struct attribute *a; + int i; + + for (i = 0; (a = p->pkey_group.attrs[i]); ++i) + kfree(a); + kfree(p->pkey_group.attrs); + for (i = 0; (a = p->gid_group.attrs[i]); ++i) + kfree(a); + kfree(p->gid_group.attrs); + kfree(p); +} + +struct port_attribute { + struct attribute attr; + ssize_t (*show)(struct mlx4_port *, struct port_attribute *, char *buf); + ssize_t (*store)(struct mlx4_port *, struct port_attribute *, + const char *buf, size_t count); +}; + +static ssize_t port_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) +{ + struct port_attribute *port_attr = + container_of(attr, struct port_attribute, attr); + struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); + + if (!port_attr->show) + return -EIO; + return port_attr->show(p, port_attr, buf); +} + +static ssize_t port_attr_store(struct kobject *kobj, + struct attribute *attr, + const char *buf, size_t size) +{ + struct port_attribute *port_attr = + container_of(attr, struct port_attribute, attr); + struct mlx4_port *p = container_of(kobj, struct mlx4_port, kobj); + + if (!port_attr->store) + return -EIO; + return port_attr->store(p, port_attr, buf, size); +} + +static const struct sysfs_ops port_sysfs_ops = { + .show = port_attr_show, + .store = port_attr_store, +}; + +static struct kobj_type port_type = { + .release = mlx4_port_release, + .sysfs_ops = &port_sysfs_ops, +}; + +struct port_table_attribute { + struct port_attribute attr; + char name[8]; + int index; +}; + +static ssize_t show_port_pkey(struct mlx4_port *p, struct port_attribute *attr, + char *buf) +{ + struct port_table_attribute *tab_attr = + container_of(attr, struct port_table_attribute, attr); + ssize_t ret = -ENODEV; + + if (p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1][tab_attr->index] >= + (p->dev->dev->caps.pkey_table_len[p->port_num])) + ret = sprintf(buf, "none\n"); + else + ret = sprintf(buf, "%d\n", + p->dev->pkeys.virt2phys_pkey[p->slave] + [p->port_num - 1][tab_attr->index]); + return ret; +} + +static ssize_t store_port_pkey(struct mlx4_port *p, struct port_attribute *attr, + const char *buf, size_t count) +{ + struct port_table_attribute *tab_attr = + container_of(attr, struct port_table_attribute, attr); + int idx; + int err; + + /* do not allow remapping Dom0 virtual pkey table */ + if (p->slave == mlx4_master_func_num(p->dev->dev)) + return -EINVAL; + + if (!strncasecmp(buf, "no", 2)) + idx = p->dev->dev->phys_caps.pkey_phys_table_len[p->port_num] - 1; + else if (sscanf(buf, "%i", &idx) != 1 || + idx >= p->dev->dev->caps.pkey_table_len[p->port_num] || + idx < 0) + return -EINVAL; + + p->dev->pkeys.virt2phys_pkey[p->slave][p->port_num - 1] + [tab_attr->index] = idx; + mlx4_sync_pkey_table(p->dev->dev, p->slave, p->port_num, + tab_attr->index, idx); + err = mlx4_gen_pkey_eqe(p->dev->dev, p->slave, p->port_num); + if (err) { + pr_err("mlx4_gen_pkey_eqe failed for slave %d," + " port %d, index %d\n", p->slave, p->port_num, idx); + return err; + } + return count; +} + +static ssize_t show_port_gid_idx(struct mlx4_port *p, + struct port_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", p->slave); +} + +static struct attribute ** +alloc_group_attrs(ssize_t (*show)(struct mlx4_port *, + struct port_attribute *, char *buf), + ssize_t (*store)(struct mlx4_port *, struct port_attribute *, + const char *buf, size_t count), + int len) +{ + struct attribute **tab_attr; + struct port_table_attribute *element; + int i; + + tab_attr = kcalloc(1 + len, sizeof (struct attribute *), GFP_KERNEL); + if (!tab_attr) + return NULL; + + for (i = 0; i < len; i++) { + element = kzalloc(sizeof (struct port_table_attribute), + GFP_KERNEL); + if (!element) + goto err; + if (snprintf(element->name, sizeof (element->name), + "%d", i) >= sizeof (element->name)) { + kfree(element); + goto err; + } + sysfs_attr_init(&element->attr.attr); + element->attr.attr.name = element->name; + if (store) { + element->attr.attr.mode = S_IWUSR | S_IRUGO; + element->attr.store = store; + } else + element->attr.attr.mode = S_IRUGO; + + element->attr.show = show; + element->index = i; + tab_attr[i] = &element->attr.attr; + } + return tab_attr; + +err: + while (--i >= 0) + kfree(tab_attr[i]); + kfree(tab_attr); + return NULL; +} + +static ssize_t sysfs_show_smi_enabled(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct mlx4_port *p = + container_of(attr, struct mlx4_port, smi_enabled); + ssize_t len = 0; + + if (mlx4_vf_smi_enabled(p->dev->dev, p->slave, p->port_num)) + len = sprintf(buf, "%d\n", 1); + else + len = sprintf(buf, "%d\n", 0); + + return len; +} + +static ssize_t sysfs_show_enable_smi_admin(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct mlx4_port *p = + container_of(attr, struct mlx4_port, enable_smi_admin); + ssize_t len = 0; + + if (mlx4_vf_get_enable_smi_admin(p->dev->dev, p->slave, p->port_num)) + len = sprintf(buf, "%d\n", 1); + else + len = sprintf(buf, "%d\n", 0); + + return len; +} + +static ssize_t sysfs_store_enable_smi_admin(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct mlx4_port *p = + container_of(attr, struct mlx4_port, enable_smi_admin); + int enable; + + if (sscanf(buf, "%i", &enable) != 1 || + enable < 0 || enable > 1) + return -EINVAL; + + if (mlx4_vf_set_enable_smi_admin(p->dev->dev, p->slave, p->port_num, enable)) + return -EINVAL; + return count; +} + +static int add_vf_smi_entries(struct mlx4_port *p) +{ + int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) == + IB_LINK_LAYER_ETHERNET; + int ret; + + /* do not display entries if eth transport, or if master */ + if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev)) + return 0; + + sysfs_attr_init(&p->smi_enabled.attr); + p->smi_enabled.show = sysfs_show_smi_enabled; + p->smi_enabled.store = NULL; + p->smi_enabled.attr.name = "smi_enabled"; + p->smi_enabled.attr.mode = 0444; + ret = sysfs_create_file(&p->kobj, &p->smi_enabled.attr); + if (ret) { + pr_err("failed to create smi_enabled\n"); + return ret; + } + + sysfs_attr_init(&p->enable_smi_admin.attr); + p->enable_smi_admin.show = sysfs_show_enable_smi_admin; + p->enable_smi_admin.store = sysfs_store_enable_smi_admin; + p->enable_smi_admin.attr.name = "enable_smi_admin"; + p->enable_smi_admin.attr.mode = 0644; + ret = sysfs_create_file(&p->kobj, &p->enable_smi_admin.attr); + if (ret) { + pr_err("failed to create enable_smi_admin\n"); + sysfs_remove_file(&p->kobj, &p->smi_enabled.attr); + return ret; + } + return 0; +} + +static void remove_vf_smi_entries(struct mlx4_port *p) +{ + int is_eth = rdma_port_get_link_layer(&p->dev->ib_dev, p->port_num) == + IB_LINK_LAYER_ETHERNET; + + if (is_eth || p->slave == mlx4_master_func_num(p->dev->dev)) + return; + + sysfs_remove_file(&p->kobj, &p->smi_enabled.attr); + sysfs_remove_file(&p->kobj, &p->enable_smi_admin.attr); +} + +static int add_port(struct mlx4_ib_dev *dev, int port_num, int slave) +{ + struct mlx4_port *p; + int i; + int ret; + + p = kzalloc(sizeof *p, GFP_KERNEL); + if (!p) + return -ENOMEM; + + p->dev = dev; + p->port_num = port_num; + p->slave = slave; + + ret = kobject_init_and_add(&p->kobj, &port_type, + kobject_get(dev->dev_ports_parent[slave]), + "%d", port_num); + if (ret) + goto err_alloc; + + p->pkey_group.name = "pkey_idx"; + p->pkey_group.attrs = + alloc_group_attrs(show_port_pkey, store_port_pkey, + dev->dev->caps.pkey_table_len[port_num]); + if (!p->pkey_group.attrs) { + ret = -ENOMEM; + goto err_alloc; + } + + ret = sysfs_create_group(&p->kobj, &p->pkey_group); + if (ret) + goto err_free_pkey; + + p->gid_group.name = "gid_idx"; + p->gid_group.attrs = alloc_group_attrs(show_port_gid_idx, NULL, 1); + if (!p->gid_group.attrs) { + ret = -ENOMEM; + goto err_free_pkey; + } + + ret = sysfs_create_group(&p->kobj, &p->gid_group); + if (ret) + goto err_free_gid; + + ret = add_vf_smi_entries(p); + if (ret) + goto err_free_gid; + + list_add_tail(&p->kobj.entry, &dev->pkeys.pkey_port_list[slave]); + return 0; + +err_free_gid: + kfree(p->gid_group.attrs[0]); + kfree(p->gid_group.attrs); + +err_free_pkey: + for (i = 0; i < dev->dev->caps.pkey_table_len[port_num]; ++i) + kfree(p->pkey_group.attrs[i]); + kfree(p->pkey_group.attrs); + +err_alloc: + kobject_put(dev->dev_ports_parent[slave]); + kfree(p); + return ret; +} + +static int register_one_pkey_tree(struct mlx4_ib_dev *dev, int slave) +{ + char name[32]; + int err; + int port; + struct kobject *p, *t; + struct mlx4_port *mport; + struct mlx4_active_ports actv_ports; + + get_name(dev, name, slave, sizeof name); + + dev->pkeys.device_parent[slave] = + kobject_create_and_add(name, kobject_get(dev->iov_parent)); + + if (!dev->pkeys.device_parent[slave]) { + err = -ENOMEM; + goto fail_dev; + } + + INIT_LIST_HEAD(&dev->pkeys.pkey_port_list[slave]); + + dev->dev_ports_parent[slave] = + kobject_create_and_add("ports", + kobject_get(dev->pkeys.device_parent[slave])); + + if (!dev->dev_ports_parent[slave]) { + err = -ENOMEM; + goto err_ports; + } + + actv_ports = mlx4_get_active_ports(dev->dev, slave); + + for (port = 1; port <= dev->dev->caps.num_ports; ++port) { + if (!test_bit(port - 1, actv_ports.ports)) + continue; + err = add_port(dev, port, slave); + if (err) + goto err_add; + } + return 0; + +err_add: + list_for_each_entry_safe(p, t, + &dev->pkeys.pkey_port_list[slave], + entry) { + list_del(&p->entry); + mport = container_of(p, struct mlx4_port, kobj); + sysfs_remove_group(p, &mport->pkey_group); + sysfs_remove_group(p, &mport->gid_group); + remove_vf_smi_entries(mport); + kobject_put(p); + } + kobject_put(dev->dev_ports_parent[slave]); + +err_ports: + kobject_put(dev->pkeys.device_parent[slave]); + /* extra put for the device_parent create_and_add */ + kobject_put(dev->pkeys.device_parent[slave]); + +fail_dev: + kobject_put(dev->iov_parent); + return err; +} + +static int register_pkey_tree(struct mlx4_ib_dev *device) +{ + int i; + + if (!mlx4_is_master(device->dev)) + return 0; + + for (i = 0; i <= device->dev->num_vfs; ++i) + register_one_pkey_tree(device, i); + + return 0; +} + +static void unregister_pkey_tree(struct mlx4_ib_dev *device) +{ + int slave; + struct kobject *p, *t; + struct mlx4_port *port; + + if (!mlx4_is_master(device->dev)) + return; + + for (slave = device->dev->num_vfs; slave >= 0; --slave) { + list_for_each_entry_safe(p, t, + &device->pkeys.pkey_port_list[slave], + entry) { + list_del(&p->entry); + port = container_of(p, struct mlx4_port, kobj); + sysfs_remove_group(p, &port->pkey_group); + sysfs_remove_group(p, &port->gid_group); + remove_vf_smi_entries(port); + kobject_put(p); + kobject_put(device->dev_ports_parent[slave]); + } + kobject_put(device->dev_ports_parent[slave]); + kobject_put(device->pkeys.device_parent[slave]); + kobject_put(device->pkeys.device_parent[slave]); + kobject_put(device->iov_parent); + } +} + +int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *dev) +{ + int i; + int ret = 0; + + if (!mlx4_is_master(dev->dev)) + return 0; + + dev->iov_parent = + kobject_create_and_add("iov", + kobject_get(dev->ib_dev.ports_parent->parent)); + if (!dev->iov_parent) { + ret = -ENOMEM; + goto err; + } + dev->ports_parent = + kobject_create_and_add("ports", + kobject_get(dev->iov_parent)); + if (!dev->ports_parent) { + ret = -ENOMEM; + goto err_ports; + } + + for (i = 1; i <= dev->ib_dev.phys_port_cnt; ++i) { + ret = add_port_entries(dev, i); + if (ret) + goto err_add_entries; + } + + ret = register_pkey_tree(dev); + if (ret) + goto err_add_entries; + return 0; + +err_add_entries: + kobject_put(dev->ports_parent); + +err_ports: + kobject_put(dev->iov_parent); +err: + kobject_put(dev->ib_dev.ports_parent->parent); + pr_err("mlx4_ib_device_register_sysfs error (%d)\n", ret); + return ret; +} + +static void unregister_alias_guid_tree(struct mlx4_ib_dev *device) +{ + struct mlx4_ib_iov_port *p; + int i; + + if (!mlx4_is_master(device->dev)) + return; + + for (i = 0; i < device->dev->caps.num_ports; i++) { + p = &device->iov_ports[i]; + kobject_put(p->admin_alias_parent); + kobject_put(p->gids_parent); + kobject_put(p->pkeys_parent); + kobject_put(p->mcgs_parent); + kobject_put(p->cur_port); + kobject_put(p->cur_port); + kobject_put(p->cur_port); + kobject_put(p->cur_port); + kobject_put(p->cur_port); + kobject_put(p->dev->ports_parent); + kfree(p->dentr_ar); + } +} + +void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device) +{ + unregister_alias_guid_tree(device); + unregister_pkey_tree(device); + kobject_put(device->ports_parent); + kobject_put(device->iov_parent); + kobject_put(device->iov_parent); + kobject_put(device->ib_dev.ports_parent->parent); +} |