From 511cbce2ff8b9d322077909ee90c5d4b67b29b75 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 10 Nov 2015 14:56:14 +0100 Subject: irq_poll: make blk-iopoll available outside the block layer The new name is irq_poll as iopoll is already taken. Better suggestions welcome. Signed-off-by: Christoph Hellwig Reviewed-by: Bart Van Assche --- Documentation/kernel-per-CPU-kthreads.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/kernel-per-CPU-kthreads.txt b/Documentation/kernel-per-CPU-kthreads.txt index f4cbfe0ba108..edec3a3e648d 100644 --- a/Documentation/kernel-per-CPU-kthreads.txt +++ b/Documentation/kernel-per-CPU-kthreads.txt @@ -90,7 +90,7 @@ BLOCK_SOFTIRQ: Do all of the following: from being initiated from tasks that might run on the CPU to be de-jittered. (It is OK to force this CPU offline and then bring it back online before you start your application.) -BLOCK_IOPOLL_SOFTIRQ: Do all of the following: +IRQ_POLL_SOFTIRQ: Do all of the following: 1. Force block-device interrupts onto some other CPU. 2. Initiate any block I/O and block-I/O polling on other CPUs. 3. Once your application has started, prevent CPU-hotplug operations -- cgit v1.2.3-59-g8ed1b From 470be516a226e851d62a8d3d31dc162500b84487 Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 23 Dec 2015 14:56:49 +0200 Subject: IB/core: Add gid attributes to sysfs 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 Signed-off-by: Doug Ledford --- Documentation/ABI/testing/sysfs-class-infiniband | 16 ++ drivers/infiniband/core/sysfs.c | 184 ++++++++++++++++++++++- 2 files changed, 198 insertions(+), 2 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-class-infiniband (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-class-infiniband b/Documentation/ABI/testing/sysfs-class-infiniband new file mode 100644 index 000000000000..a86abe66a316 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-infiniband @@ -0,0 +1,16 @@ +What: /sys/class/infiniband//ports//gid_attrs/ndevs/ +Date: November 29, 2015 +KernelVersion: 4.4.0 +Contact: linux-rdma@vger.kernel.org +Description: The net-device's name associated with the GID resides + at index . + +What: /sys/class/infiniband//ports//gid_attrs/types/ +Date: November 29, 2015 +KernelVersion: 4.4.0 +Contact: linux-rdma@vger.kernel.org +Description: The RoCE type of the associated GID resides at index . + This could either be "IB/RoCE v1" for IB and RoCE v1 based GODs + or "RoCE v2" for RoCE v2 based GIDs. + + diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 1d5b4b035400..91847d383080 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; @@ -797,6 +972,11 @@ 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); } -- cgit v1.2.3-59-g8ed1b From 045959db65c67d7189dc89ecddb5fa10aafa449d Mon Sep 17 00:00:00 2001 From: Matan Barak Date: Wed, 23 Dec 2015 14:56:55 +0200 Subject: IB/cma: Add configfs for rdma_cm Users would like to control the behaviour of rdma_cm. For example, old applications which don't set the required RoCE gid type could be executed on RoCE V2 network types. In order to support this configuration, we implement a configfs for rdma_cm. In order to use the configfs, one needs to mount it and mkdir inside rdma_cm directory. The patch adds support for a single configuration file, default_roce_mode. The mode can either be "IB/RoCE v1" or "RoCE v2". Signed-off-by: Matan Barak Signed-off-by: Doug Ledford --- Documentation/ABI/testing/configfs-rdma_cm | 22 ++ drivers/infiniband/Kconfig | 9 + drivers/infiniband/core/Makefile | 2 + drivers/infiniband/core/cache.c | 24 +++ drivers/infiniband/core/cma.c | 108 +++++++++- drivers/infiniband/core/cma_configfs.c | 322 +++++++++++++++++++++++++++++ drivers/infiniband/core/core_priv.h | 24 +++ 7 files changed, 504 insertions(+), 7 deletions(-) create mode 100644 Documentation/ABI/testing/configfs-rdma_cm create mode 100644 drivers/infiniband/core/cma_configfs.c (limited to 'Documentation') diff --git a/Documentation/ABI/testing/configfs-rdma_cm b/Documentation/ABI/testing/configfs-rdma_cm new file mode 100644 index 000000000000..5c389aaf5291 --- /dev/null +++ b/Documentation/ABI/testing/configfs-rdma_cm @@ -0,0 +1,22 @@ +What: /config/rdma_cm +Date: November 29, 2015 +KernelVersion: 4.4.0 +Description: Interface is used to configure RDMA-cable HCAs in respect to + RDMA-CM attributes. + + Attributes are visible only when configfs is mounted. To mount + configfs in /config directory use: + # mount -t configfs none /config/ + + In order to set parameters related to a specific HCA, a directory + for this HCA has to be created: + mkdir -p /config/rdma_cm/ + + +What: /config/rdma_cm//ports//default_roce_mode +Date: November 29, 2015 +KernelVersion: 4.4.0 +Description: RDMA-CM based connections from HCA at port + will be initiated with this RoCE type as default. + The possible RoCE types are either "IB/RoCE v1" or "RoCE v2". + This parameter has RW access. diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index 282ec0b664fe..8a8440c0eed1 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -55,6 +55,15 @@ config INFINIBAND_ADDR_TRANS depends on INFINIBAND default y +config INFINIBAND_ADDR_TRANS_CONFIGFS + bool + depends on INFINIBAND_ADDR_TRANS && CONFIGFS_FS && !(INFINIBAND=y && CONFIGFS_FS=m) + default y + ---help--- + ConfigFS support for RDMA communication manager (CM). + This allows the user to config the default GID type that the CM + uses for each device, when initiaing new connections. + source "drivers/infiniband/hw/mthca/Kconfig" source "drivers/infiniband/hw/qib/Kconfig" source "drivers/infiniband/hw/cxgb3/Kconfig" diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile index ae48d874012f..f818538a7f4e 100644 --- a/drivers/infiniband/core/Makefile +++ b/drivers/infiniband/core/Makefile @@ -24,6 +24,8 @@ iw_cm-y := iwcm.o iwpm_util.o iwpm_msg.o rdma_cm-y := cma.o +rdma_cm-$(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS) += cma_configfs.o + rdma_ucm-y := ucma.o ib_addr-y := addr.o diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 4a2968b1cf56..92cadbddbe49 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -140,6 +140,30 @@ const char *ib_cache_gid_type_str(enum ib_gid_type gid_type) } EXPORT_SYMBOL(ib_cache_gid_type_str); +int ib_cache_gid_parse_type_str(const char *buf) +{ + unsigned int i; + size_t len; + int err = -EINVAL; + + len = strlen(buf); + if (len == 0) + return -EINVAL; + + if (buf[len - 1] == '\n') + len--; + + for (i = 0; i < ARRAY_SIZE(gid_type_str); ++i) + if (gid_type_str[i] && !strncmp(buf, gid_type_str[i], len) && + len == strlen(gid_type_str[i])) { + err = i; + break; + } + + return err; +} +EXPORT_SYMBOL(ib_cache_gid_parse_type_str); + /* This function expects that rwlock will be write locked in all * scenarios and that lock will be locked in sleep-able (RoCE) * scenarios. diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 322f1c6a6bf3..75987b0c570c 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -152,6 +152,7 @@ struct cma_device { struct completion comp; atomic_t refcount; struct list_head id_list; + enum ib_gid_type *default_gid_type; }; struct rdma_bind_list { @@ -192,6 +193,62 @@ void cma_ref_dev(struct cma_device *cma_dev) atomic_inc(&cma_dev->refcount); } +struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter, + void *cookie) +{ + struct cma_device *cma_dev; + struct cma_device *found_cma_dev = NULL; + + mutex_lock(&lock); + + list_for_each_entry(cma_dev, &dev_list, list) + if (filter(cma_dev->device, cookie)) { + found_cma_dev = cma_dev; + break; + } + + if (found_cma_dev) + cma_ref_dev(found_cma_dev); + mutex_unlock(&lock); + return found_cma_dev; +} + +int cma_get_default_gid_type(struct cma_device *cma_dev, + unsigned int port) +{ + if (port < rdma_start_port(cma_dev->device) || + port > rdma_end_port(cma_dev->device)) + return -EINVAL; + + return cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)]; +} + +int cma_set_default_gid_type(struct cma_device *cma_dev, + unsigned int port, + enum ib_gid_type default_gid_type) +{ + unsigned long supported_gids; + + if (port < rdma_start_port(cma_dev->device) || + port > rdma_end_port(cma_dev->device)) + return -EINVAL; + + supported_gids = roce_gid_type_mask_support(cma_dev->device, port); + + if (!(supported_gids & 1 << default_gid_type)) + return -EINVAL; + + cma_dev->default_gid_type[port - rdma_start_port(cma_dev->device)] = + default_gid_type; + + return 0; +} + +struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev) +{ + return cma_dev->device; +} + /* * Device removal can occur at anytime, so we need extra handling to * serialize notifying the user of device removal with other callbacks. @@ -343,17 +400,27 @@ static inline void cma_set_ip_ver(struct cma_hdr *hdr, u8 ip_ver) hdr->ip_version = (ip_ver << 4) | (hdr->ip_version & 0xF); } -static void cma_attach_to_dev(struct rdma_id_private *id_priv, - struct cma_device *cma_dev) +static void _cma_attach_to_dev(struct rdma_id_private *id_priv, + struct cma_device *cma_dev) { cma_ref_dev(cma_dev); id_priv->cma_dev = cma_dev; + id_priv->gid_type = 0; id_priv->id.device = cma_dev->device; id_priv->id.route.addr.dev_addr.transport = rdma_node_get_transport(cma_dev->device->node_type); list_add_tail(&id_priv->list, &cma_dev->id_list); } +static void cma_attach_to_dev(struct rdma_id_private *id_priv, + struct cma_device *cma_dev) +{ + _cma_attach_to_dev(id_priv, cma_dev); + id_priv->gid_type = + cma_dev->default_gid_type[id_priv->id.port_num - + rdma_start_port(cma_dev->device)]; +} + void cma_deref_dev(struct cma_device *cma_dev) { if (atomic_dec_and_test(&cma_dev->refcount)) @@ -449,6 +516,7 @@ static int cma_translate_addr(struct sockaddr *addr, struct rdma_dev_addr *dev_a } static inline int cma_validate_port(struct ib_device *device, u8 port, + enum ib_gid_type gid_type, union ib_gid *gid, int dev_type, int bound_if_index) { @@ -474,9 +542,11 @@ static inline int cma_validate_port(struct ib_device *device, u8 port, if (!ndev) return -ENODEV; } + } else { + gid_type = IB_GID_TYPE_IB; } - ret = ib_find_cached_gid_by_port(device, gid, IB_GID_TYPE_IB, port, + ret = ib_find_cached_gid_by_port(device, gid, gid_type, port, ndev, NULL); if (ndev) @@ -511,7 +581,10 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv, gidp = rdma_protocol_roce(cma_dev->device, port) ? &iboe_gid : &gid; - ret = cma_validate_port(cma_dev->device, port, gidp, + ret = cma_validate_port(cma_dev->device, port, + rdma_protocol_ib(cma_dev->device, port) ? + IB_GID_TYPE_IB : + listen_id_priv->gid_type, gidp, dev_addr->dev_type, dev_addr->bound_dev_if); if (!ret) { @@ -530,8 +603,11 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv, gidp = rdma_protocol_roce(cma_dev->device, port) ? &iboe_gid : &gid; - ret = cma_validate_port(cma_dev->device, port, gidp, - dev_addr->dev_type, + ret = cma_validate_port(cma_dev->device, port, + rdma_protocol_ib(cma_dev->device, port) ? + IB_GID_TYPE_IB : + cma_dev->default_gid_type[port - 1], + gidp, dev_addr->dev_type, dev_addr->bound_dev_if); if (!ret) { id_priv->id.port_num = port; @@ -2062,7 +2138,7 @@ static void cma_listen_on_dev(struct rdma_id_private *id_priv, memcpy(cma_src_addr(dev_id_priv), cma_src_addr(id_priv), rdma_addr_size(cma_src_addr(id_priv))); - cma_attach_to_dev(dev_id_priv, cma_dev); + _cma_attach_to_dev(dev_id_priv, cma_dev); list_add_tail(&dev_id_priv->listen_list, &id_priv->listen_list); atomic_inc(&id_priv->refcount); dev_id_priv->internal_id = 1; @@ -3896,12 +3972,27 @@ static void cma_add_one(struct ib_device *device) { struct cma_device *cma_dev; struct rdma_id_private *id_priv; + unsigned int i; + unsigned long supported_gids = 0; cma_dev = kmalloc(sizeof *cma_dev, GFP_KERNEL); if (!cma_dev) return; cma_dev->device = device; + cma_dev->default_gid_type = kcalloc(device->phys_port_cnt, + sizeof(*cma_dev->default_gid_type), + GFP_KERNEL); + if (!cma_dev->default_gid_type) { + kfree(cma_dev); + return; + } + for (i = rdma_start_port(device); i <= rdma_end_port(device); i++) { + supported_gids = roce_gid_type_mask_support(device, i); + WARN_ON(!supported_gids); + cma_dev->default_gid_type[i - rdma_start_port(device)] = + find_first_bit(&supported_gids, BITS_PER_LONG); + } init_completion(&cma_dev->comp); atomic_set(&cma_dev->refcount, 1); @@ -3981,6 +4072,7 @@ static void cma_remove_one(struct ib_device *device, void *client_data) mutex_unlock(&lock); cma_process_remove(cma_dev); + kfree(cma_dev->default_gid_type); kfree(cma_dev); } @@ -4114,6 +4206,7 @@ static int __init cma_init(void) if (ibnl_add_client(RDMA_NL_RDMA_CM, RDMA_NL_RDMA_CM_NUM_OPS, cma_cb_table)) printk(KERN_WARNING "RDMA CMA: failed to add netlink callback\n"); + cma_configfs_init(); return 0; @@ -4128,6 +4221,7 @@ err_wq: static void __exit cma_cleanup(void) { + cma_configfs_exit(); ibnl_remove_client(RDMA_NL_RDMA_CM); ib_unregister_client(&cma_client); unregister_netdevice_notifier(&cma_nb); diff --git a/drivers/infiniband/core/cma_configfs.c b/drivers/infiniband/core/cma_configfs.c new file mode 100644 index 000000000000..bd1d6402ebd5 --- /dev/null +++ b/drivers/infiniband/core/cma_configfs.c @@ -0,0 +1,322 @@ +/* + * Copyright (c) 2015, Mellanox Technologies inc. 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 +#include +#include +#include "core_priv.h" + +struct cma_device; + +struct cma_dev_group; + +struct cma_dev_port_group { + unsigned int port_num; + struct cma_dev_group *cma_dev_group; + struct config_group group; +}; + +struct cma_dev_group { + char name[IB_DEVICE_NAME_MAX]; + struct config_group device_group; + struct config_group ports_group; + struct config_group *default_dev_group[2]; + struct config_group **default_ports_group; + struct cma_dev_port_group *ports; +}; + +static struct cma_dev_port_group *to_dev_port_group(struct config_item *item) +{ + struct config_group *group; + + if (!item) + return NULL; + + group = container_of(item, struct config_group, cg_item); + return container_of(group, struct cma_dev_port_group, group); +} + +static bool filter_by_name(struct ib_device *ib_dev, void *cookie) +{ + return !strcmp(ib_dev->name, cookie); +} + +static int cma_configfs_params_get(struct config_item *item, + struct cma_device **pcma_dev, + struct cma_dev_port_group **pgroup) +{ + struct cma_dev_port_group *group = to_dev_port_group(item); + struct cma_device *cma_dev; + + if (!group) + return -ENODEV; + + cma_dev = cma_enum_devices_by_ibdev(filter_by_name, + group->cma_dev_group->name); + if (!cma_dev) + return -ENODEV; + + *pcma_dev = cma_dev; + *pgroup = group; + + return 0; +} + +static void cma_configfs_params_put(struct cma_device *cma_dev) +{ + cma_deref_dev(cma_dev); +} + +static ssize_t default_roce_mode_show(struct config_item *item, + char *buf) +{ + struct cma_device *cma_dev; + struct cma_dev_port_group *group; + int gid_type; + ssize_t ret; + + ret = cma_configfs_params_get(item, &cma_dev, &group); + if (ret) + return ret; + + gid_type = cma_get_default_gid_type(cma_dev, group->port_num); + cma_configfs_params_put(cma_dev); + + if (gid_type < 0) + return gid_type; + + return sprintf(buf, "%s\n", ib_cache_gid_type_str(gid_type)); +} + +static ssize_t default_roce_mode_store(struct config_item *item, + const char *buf, size_t count) +{ + struct cma_device *cma_dev; + struct cma_dev_port_group *group; + int gid_type = ib_cache_gid_parse_type_str(buf); + ssize_t ret; + + if (gid_type < 0) + return -EINVAL; + + ret = cma_configfs_params_get(item, &cma_dev, &group); + if (ret) + return ret; + + ret = cma_set_default_gid_type(cma_dev, group->port_num, gid_type); + + cma_configfs_params_put(cma_dev); + + return !ret ? strnlen(buf, count) : ret; +} + +CONFIGFS_ATTR(, default_roce_mode); + +static struct configfs_attribute *cma_configfs_attributes[] = { + &attr_default_roce_mode, + NULL, +}; + +static struct config_item_type cma_port_group_type = { + .ct_attrs = cma_configfs_attributes, + .ct_owner = THIS_MODULE +}; + +static int make_cma_ports(struct cma_dev_group *cma_dev_group, + struct cma_device *cma_dev) +{ + struct ib_device *ibdev; + unsigned int i; + unsigned int ports_num; + struct cma_dev_port_group *ports; + int err; + + ibdev = cma_get_ib_dev(cma_dev); + + if (!ibdev) + return -ENODEV; + + ports_num = ibdev->phys_port_cnt; + ports = kcalloc(ports_num, sizeof(*cma_dev_group->ports), + GFP_KERNEL); + + cma_dev_group->default_ports_group = kcalloc(ports_num + 1, + sizeof(*cma_dev_group->ports), + GFP_KERNEL); + + if (!ports || !cma_dev_group->default_ports_group) { + err = -ENOMEM; + goto free; + } + + for (i = 0; i < ports_num; i++) { + char port_str[10]; + + ports[i].port_num = i + 1; + snprintf(port_str, sizeof(port_str), "%u", i + 1); + ports[i].cma_dev_group = cma_dev_group; + config_group_init_type_name(&ports[i].group, + port_str, + &cma_port_group_type); + cma_dev_group->default_ports_group[i] = &ports[i].group; + } + cma_dev_group->default_ports_group[i] = NULL; + cma_dev_group->ports = ports; + + return 0; +free: + kfree(ports); + kfree(cma_dev_group->default_ports_group); + cma_dev_group->ports = NULL; + cma_dev_group->default_ports_group = NULL; + return err; +} + +static void release_cma_dev(struct config_item *item) +{ + struct config_group *group = container_of(item, struct config_group, + cg_item); + struct cma_dev_group *cma_dev_group = container_of(group, + struct cma_dev_group, + device_group); + + kfree(cma_dev_group); +}; + +static void release_cma_ports_group(struct config_item *item) +{ + struct config_group *group = container_of(item, struct config_group, + cg_item); + struct cma_dev_group *cma_dev_group = container_of(group, + struct cma_dev_group, + ports_group); + + kfree(cma_dev_group->ports); + kfree(cma_dev_group->default_ports_group); + cma_dev_group->ports = NULL; + cma_dev_group->default_ports_group = NULL; +}; + +static struct configfs_item_operations cma_ports_item_ops = { + .release = release_cma_ports_group +}; + +static struct config_item_type cma_ports_group_type = { + .ct_item_ops = &cma_ports_item_ops, + .ct_owner = THIS_MODULE +}; + +static struct configfs_item_operations cma_device_item_ops = { + .release = release_cma_dev +}; + +static struct config_item_type cma_device_group_type = { + .ct_item_ops = &cma_device_item_ops, + .ct_owner = THIS_MODULE +}; + +static struct config_group *make_cma_dev(struct config_group *group, + const char *name) +{ + int err = -ENODEV; + struct cma_device *cma_dev = cma_enum_devices_by_ibdev(filter_by_name, + (void *)name); + struct cma_dev_group *cma_dev_group = NULL; + + if (!cma_dev) + goto fail; + + cma_dev_group = kzalloc(sizeof(*cma_dev_group), GFP_KERNEL); + + if (!cma_dev_group) { + err = -ENOMEM; + goto fail; + } + + strncpy(cma_dev_group->name, name, sizeof(cma_dev_group->name)); + + err = make_cma_ports(cma_dev_group, cma_dev); + if (err) + goto fail; + + cma_dev_group->ports_group.default_groups = + cma_dev_group->default_ports_group; + config_group_init_type_name(&cma_dev_group->ports_group, "ports", + &cma_ports_group_type); + + cma_dev_group->device_group.default_groups + = cma_dev_group->default_dev_group; + cma_dev_group->default_dev_group[0] = &cma_dev_group->ports_group; + cma_dev_group->default_dev_group[1] = NULL; + + config_group_init_type_name(&cma_dev_group->device_group, name, + &cma_device_group_type); + + cma_deref_dev(cma_dev); + return &cma_dev_group->device_group; + +fail: + if (cma_dev) + cma_deref_dev(cma_dev); + kfree(cma_dev_group); + return ERR_PTR(err); +} + +static struct configfs_group_operations cma_subsys_group_ops = { + .make_group = make_cma_dev, +}; + +static struct config_item_type cma_subsys_type = { + .ct_group_ops = &cma_subsys_group_ops, + .ct_owner = THIS_MODULE, +}; + +static struct configfs_subsystem cma_subsys = { + .su_group = { + .cg_item = { + .ci_namebuf = "rdma_cm", + .ci_type = &cma_subsys_type, + }, + }, +}; + +int __init cma_configfs_init(void) +{ + config_group_init(&cma_subsys.su_group); + mutex_init(&cma_subsys.su_mutex); + return configfs_register_subsystem(&cma_subsys); +} + +void __exit cma_configfs_exit(void) +{ + configfs_unregister_subsystem(&cma_subsys); +} diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h index 1945b4eccbbb..eab32215756b 100644 --- a/drivers/infiniband/core/core_priv.h +++ b/drivers/infiniband/core/core_priv.h @@ -38,9 +38,31 @@ #include +#if IS_ENABLED(CONFIG_INFINIBAND_ADDR_TRANS_CONFIGFS) +int cma_configfs_init(void); +void cma_configfs_exit(void); +#else +static inline int cma_configfs_init(void) +{ + return 0; +} + +static inline void cma_configfs_exit(void) +{ +} +#endif struct cma_device; void cma_ref_dev(struct cma_device *cma_dev); void cma_deref_dev(struct cma_device *cma_dev); +typedef bool (*cma_device_filter)(struct ib_device *, void *); +struct cma_device *cma_enum_devices_by_ibdev(cma_device_filter filter, + void *cookie); +int cma_get_default_gid_type(struct cma_device *cma_dev, + unsigned int port); +int cma_set_default_gid_type(struct cma_device *cma_dev, + unsigned int port, + enum ib_gid_type default_gid_type); +struct ib_device *cma_get_ib_dev(struct cma_device *cma_dev); int ib_device_register_sysfs(struct ib_device *device, int (*port_callback)(struct ib_device *, @@ -74,6 +96,8 @@ enum ib_cache_gid_default_mode { IB_CACHE_GID_DEFAULT_MODE_DELETE }; +int ib_cache_gid_parse_type_str(const char *buf); + const char *ib_cache_gid_type_str(enum ib_gid_type gid_type); void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port, -- cgit v1.2.3-59-g8ed1b From feb7c1e38bccfd18cc06677cb648ed2340788fe8 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Wed, 23 Dec 2015 19:12:48 +0100 Subject: IB: remove in-kernel support for memory windows Remove the unused ib_allow_mw and ib_bind_mw functions, remove the unused IB_WR_BIND_MW and IB_WC_BIND_MW opcodes and move ib_dealloc_mw into the uverbs module. Signed-off-by: Christoph Hellwig Reviewed-by: Sagi Grimberg Reviewed-by: Jason Gunthorpe [core] Reviewed-by: Steve Wise Signed-off-by: Doug Ledford --- Documentation/infiniband/core_locking.txt | 2 - drivers/infiniband/core/uverbs.h | 2 + drivers/infiniband/core/uverbs_cmd.c | 4 +- drivers/infiniband/core/uverbs_main.c | 13 ++++- drivers/infiniband/core/verbs.c | 36 ------------- drivers/infiniband/hw/cxgb3/iwch_cq.c | 4 -- drivers/infiniband/hw/cxgb3/iwch_provider.c | 1 - drivers/infiniband/hw/cxgb3/iwch_provider.h | 3 -- drivers/infiniband/hw/cxgb3/iwch_qp.c | 82 ---------------------------- drivers/infiniband/hw/cxgb4/cq.c | 3 -- drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 2 - drivers/infiniband/hw/cxgb4/provider.c | 1 - drivers/infiniband/hw/cxgb4/qp.c | 5 -- drivers/infiniband/hw/mlx4/cq.c | 3 -- drivers/infiniband/hw/mlx4/main.c | 1 - drivers/infiniband/hw/mlx4/mlx4_ib.h | 2 - drivers/infiniband/hw/mlx4/mr.c | 22 -------- drivers/infiniband/hw/mlx4/qp.c | 27 ---------- drivers/infiniband/hw/mlx5/cq.c | 3 -- drivers/infiniband/hw/mthca/mthca_cq.c | 3 -- drivers/infiniband/hw/nes/nes_verbs.c | 75 -------------------------- drivers/staging/rdma/amso1100/c2_cq.c | 3 -- drivers/staging/rdma/ehca/ehca_iverbs.h | 3 -- drivers/staging/rdma/ehca/ehca_main.c | 1 - drivers/staging/rdma/ehca/ehca_mrmw.c | 12 ----- drivers/staging/rdma/ehca/ehca_reqs.c | 1 - include/rdma/ib_verbs.h | 83 ----------------------------- 27 files changed, 16 insertions(+), 381 deletions(-) (limited to 'Documentation') diff --git a/Documentation/infiniband/core_locking.txt b/Documentation/infiniband/core_locking.txt index e1678542279a..4b1f36b6ada0 100644 --- a/Documentation/infiniband/core_locking.txt +++ b/Documentation/infiniband/core_locking.txt @@ -15,7 +15,6 @@ Sleeping and interrupt context modify_ah query_ah destroy_ah - bind_mw post_send post_recv poll_cq @@ -31,7 +30,6 @@ Sleeping and interrupt context ib_modify_ah ib_query_ah ib_destroy_ah - ib_bind_mw ib_post_send ib_post_recv ib_req_notify_cq diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h index 94bbd8c155fc..612ccfd39bf9 100644 --- a/drivers/infiniband/core/uverbs.h +++ b/drivers/infiniband/core/uverbs.h @@ -204,6 +204,8 @@ void ib_uverbs_event_handler(struct ib_event_handler *handler, struct ib_event *event); void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd); +int uverbs_dealloc_mw(struct ib_mw *mw); + struct ib_uverbs_flow_spec { union { union { diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c index 95610565fb46..5428ebee096f 100644 --- a/drivers/infiniband/core/uverbs_cmd.c +++ b/drivers/infiniband/core/uverbs_cmd.c @@ -1243,7 +1243,7 @@ err_copy: idr_remove_uobj(&ib_uverbs_mw_idr, uobj); err_unalloc: - ib_dealloc_mw(mw); + uverbs_dealloc_mw(mw); err_put: put_pd_read(pd); @@ -1272,7 +1272,7 @@ ssize_t ib_uverbs_dealloc_mw(struct ib_uverbs_file *file, mw = uobj->object; - ret = ib_dealloc_mw(mw); + ret = uverbs_dealloc_mw(mw); if (!ret) uobj->live = 0; diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c index e3ef28861be6..39680aed99dd 100644 --- a/drivers/infiniband/core/uverbs_main.c +++ b/drivers/infiniband/core/uverbs_main.c @@ -133,6 +133,17 @@ static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file, static void ib_uverbs_add_one(struct ib_device *device); static void ib_uverbs_remove_one(struct ib_device *device, void *client_data); +int uverbs_dealloc_mw(struct ib_mw *mw) +{ + struct ib_pd *pd = mw->pd; + int ret; + + ret = mw->device->dealloc_mw(mw); + if (!ret) + atomic_dec(&pd->usecnt); + return ret; +} + static void ib_uverbs_release_dev(struct kobject *kobj) { struct ib_uverbs_device *dev = @@ -224,7 +235,7 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file, struct ib_mw *mw = uobj->object; idr_remove_uobj(&ib_uverbs_mw_idr, uobj); - ib_dealloc_mw(mw); + uverbs_dealloc_mw(mw); kfree(uobj); } diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 70b1016be1c8..c5e0f07a7f82 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1403,42 +1403,6 @@ struct ib_mr *ib_alloc_mr(struct ib_pd *pd, } EXPORT_SYMBOL(ib_alloc_mr); -/* Memory windows */ - -struct ib_mw *ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type) -{ - struct ib_mw *mw; - - if (!pd->device->alloc_mw) - return ERR_PTR(-ENOSYS); - - mw = pd->device->alloc_mw(pd, type); - if (!IS_ERR(mw)) { - mw->device = pd->device; - mw->pd = pd; - mw->uobject = NULL; - mw->type = type; - atomic_inc(&pd->usecnt); - } - - return mw; -} -EXPORT_SYMBOL(ib_alloc_mw); - -int ib_dealloc_mw(struct ib_mw *mw) -{ - struct ib_pd *pd; - int ret; - - pd = mw->pd; - ret = mw->device->dealloc_mw(mw); - if (!ret) - atomic_dec(&pd->usecnt); - - return ret; -} -EXPORT_SYMBOL(ib_dealloc_mw); - /* "Fast" memory regions */ struct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, diff --git a/drivers/infiniband/hw/cxgb3/iwch_cq.c b/drivers/infiniband/hw/cxgb3/iwch_cq.c index cfe404925a39..97fbfd2c298e 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_cq.c +++ b/drivers/infiniband/hw/cxgb3/iwch_cq.c @@ -115,10 +115,6 @@ static int iwch_poll_cq_one(struct iwch_dev *rhp, struct iwch_cq *chp, case T3_SEND_WITH_SE_INV: wc->opcode = IB_WC_SEND; break; - case T3_BIND_MW: - wc->opcode = IB_WC_BIND_MW; - break; - case T3_LOCAL_INV: wc->opcode = IB_WC_LOCAL_INV; break; diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c index f7aa019a3c1a..384e1d783507 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.c +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c @@ -1388,7 +1388,6 @@ int iwch_register_device(struct iwch_dev *dev) dev->ibdev.reg_user_mr = iwch_reg_user_mr; dev->ibdev.dereg_mr = iwch_dereg_mr; dev->ibdev.alloc_mw = iwch_alloc_mw; - dev->ibdev.bind_mw = iwch_bind_mw; dev->ibdev.dealloc_mw = iwch_dealloc_mw; dev->ibdev.alloc_mr = iwch_alloc_mr; dev->ibdev.map_mr_sg = iwch_map_mr_sg; diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.h b/drivers/infiniband/hw/cxgb3/iwch_provider.h index f4fa6d677c0f..f24df44146c6 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_provider.h +++ b/drivers/infiniband/hw/cxgb3/iwch_provider.h @@ -330,9 +330,6 @@ int iwch_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr); int iwch_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, struct ib_recv_wr **bad_wr); -int iwch_bind_mw(struct ib_qp *qp, - struct ib_mw *mw, - struct ib_mw_bind *mw_bind); int iwch_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg); int iwch_post_zb_read(struct iwch_ep *ep); diff --git a/drivers/infiniband/hw/cxgb3/iwch_qp.c b/drivers/infiniband/hw/cxgb3/iwch_qp.c index d0548fc6395e..d939980a708f 100644 --- a/drivers/infiniband/hw/cxgb3/iwch_qp.c +++ b/drivers/infiniband/hw/cxgb3/iwch_qp.c @@ -526,88 +526,6 @@ out: return err; } -int iwch_bind_mw(struct ib_qp *qp, - struct ib_mw *mw, - struct ib_mw_bind *mw_bind) -{ - struct iwch_dev *rhp; - struct iwch_mw *mhp; - struct iwch_qp *qhp; - union t3_wr *wqe; - u32 pbl_addr; - u8 page_size; - u32 num_wrs; - unsigned long flag; - struct ib_sge sgl; - int err=0; - enum t3_wr_flags t3_wr_flags; - u32 idx; - struct t3_swsq *sqp; - - qhp = to_iwch_qp(qp); - mhp = to_iwch_mw(mw); - rhp = qhp->rhp; - - spin_lock_irqsave(&qhp->lock, flag); - if (qhp->attr.state > IWCH_QP_STATE_RTS) { - spin_unlock_irqrestore(&qhp->lock, flag); - return -EINVAL; - } - num_wrs = Q_FREECNT(qhp->wq.sq_rptr, qhp->wq.sq_wptr, - qhp->wq.sq_size_log2); - if (num_wrs == 0) { - spin_unlock_irqrestore(&qhp->lock, flag); - return -ENOMEM; - } - idx = Q_PTR2IDX(qhp->wq.wptr, qhp->wq.size_log2); - PDBG("%s: idx 0x%0x, mw 0x%p, mw_bind 0x%p\n", __func__, idx, - mw, mw_bind); - wqe = (union t3_wr *) (qhp->wq.queue + idx); - - t3_wr_flags = 0; - if (mw_bind->send_flags & IB_SEND_SIGNALED) - t3_wr_flags = T3_COMPLETION_FLAG; - - sgl.addr = mw_bind->bind_info.addr; - sgl.lkey = mw_bind->bind_info.mr->lkey; - sgl.length = mw_bind->bind_info.length; - wqe->bind.reserved = 0; - wqe->bind.type = TPT_VATO; - - /* TBD: check perms */ - wqe->bind.perms = iwch_ib_to_tpt_bind_access( - mw_bind->bind_info.mw_access_flags); - wqe->bind.mr_stag = cpu_to_be32(mw_bind->bind_info.mr->lkey); - wqe->bind.mw_stag = cpu_to_be32(mw->rkey); - wqe->bind.mw_len = cpu_to_be32(mw_bind->bind_info.length); - wqe->bind.mw_va = cpu_to_be64(mw_bind->bind_info.addr); - err = iwch_sgl2pbl_map(rhp, &sgl, 1, &pbl_addr, &page_size); - if (err) { - spin_unlock_irqrestore(&qhp->lock, flag); - return err; - } - wqe->send.wrid.id0.hi = qhp->wq.sq_wptr; - sqp = qhp->wq.sq + Q_PTR2IDX(qhp->wq.sq_wptr, qhp->wq.sq_size_log2); - sqp->wr_id = mw_bind->wr_id; - sqp->opcode = T3_BIND_MW; - sqp->sq_wptr = qhp->wq.sq_wptr; - sqp->complete = 0; - sqp->signaled = (mw_bind->send_flags & IB_SEND_SIGNALED); - wqe->bind.mr_pbl_addr = cpu_to_be32(pbl_addr); - wqe->bind.mr_pagesz = page_size; - build_fw_riwrh((void *)wqe, T3_WR_BIND, t3_wr_flags, - Q_GENBIT(qhp->wq.wptr, qhp->wq.size_log2), 0, - sizeof(struct t3_bind_mw_wr) >> 3, T3_SOPEOP); - ++(qhp->wq.wptr); - ++(qhp->wq.sq_wptr); - spin_unlock_irqrestore(&qhp->lock, flag); - - if (cxio_wq_db_enabled(&qhp->wq)) - ring_doorbell(qhp->wq.doorbell, qhp->wq.qpid); - - return err; -} - static inline void build_term_codes(struct respQ_msg_t *rsp_msg, u8 *layer_type, u8 *ecode) { diff --git a/drivers/infiniband/hw/cxgb4/cq.c b/drivers/infiniband/hw/cxgb4/cq.c index de9cd6901752..cf21df4a8bf5 100644 --- a/drivers/infiniband/hw/cxgb4/cq.c +++ b/drivers/infiniband/hw/cxgb4/cq.c @@ -744,9 +744,6 @@ static int c4iw_poll_cq_one(struct c4iw_cq *chp, struct ib_wc *wc) case FW_RI_SEND_WITH_SE: wc->opcode = IB_WC_SEND; break; - case FW_RI_BIND_MW: - wc->opcode = IB_WC_BIND_MW; - break; case FW_RI_LOCAL_INV: wc->opcode = IB_WC_LOCAL_INV; diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index dd00cf2d0b65..fb2de75a0392 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -947,8 +947,6 @@ int c4iw_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, struct ib_send_wr **bad_wr); int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, struct ib_recv_wr **bad_wr); -int c4iw_bind_mw(struct ib_qp *qp, struct ib_mw *mw, - struct ib_mw_bind *mw_bind); int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param); int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog); int c4iw_destroy_listen(struct iw_cm_id *cm_id); diff --git a/drivers/infiniband/hw/cxgb4/provider.c b/drivers/infiniband/hw/cxgb4/provider.c index 249ea57e1d99..ec04272fbdc2 100644 --- a/drivers/infiniband/hw/cxgb4/provider.c +++ b/drivers/infiniband/hw/cxgb4/provider.c @@ -552,7 +552,6 @@ int c4iw_register_device(struct c4iw_dev *dev) dev->ibdev.reg_user_mr = c4iw_reg_user_mr; dev->ibdev.dereg_mr = c4iw_dereg_mr; dev->ibdev.alloc_mw = c4iw_alloc_mw; - dev->ibdev.bind_mw = c4iw_bind_mw; dev->ibdev.dealloc_mw = c4iw_dealloc_mw; dev->ibdev.alloc_mr = c4iw_alloc_mr; dev->ibdev.map_mr_sg = c4iw_map_mr_sg; diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index aa515afee724..e99345eb875a 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -933,11 +933,6 @@ int c4iw_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr, return err; } -int c4iw_bind_mw(struct ib_qp *qp, struct ib_mw *mw, struct ib_mw_bind *mw_bind) -{ - return -ENOSYS; -} - static inline void build_term_codes(struct t4_cqe *err_cqe, u8 *layer_type, u8 *ecode) { diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c index b88fc8f5ab18..9f8b516eb2b0 100644 --- a/drivers/infiniband/hw/mlx4/cq.c +++ b/drivers/infiniband/hw/mlx4/cq.c @@ -811,9 +811,6 @@ repoll: wc->opcode = IB_WC_MASKED_FETCH_ADD; wc->byte_len = 8; break; - case MLX4_OPCODE_BIND_MW: - wc->opcode = IB_WC_BIND_MW; - break; case MLX4_OPCODE_LSO: wc->opcode = IB_WC_LSO; break; diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 97d6878f9938..627267f860f9 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -2283,7 +2283,6 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW || dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) { ibdev->ib_dev.alloc_mw = mlx4_ib_alloc_mw; - ibdev->ib_dev.bind_mw = mlx4_ib_bind_mw; ibdev->ib_dev.dealloc_mw = mlx4_ib_dealloc_mw; ibdev->ib_dev.uverbs_cmd_mask |= diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h index 1caa11edac03..8916e9b55324 100644 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h @@ -704,8 +704,6 @@ struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, struct ib_udata *udata); int mlx4_ib_dereg_mr(struct ib_mr *mr); struct ib_mw *mlx4_ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type); -int mlx4_ib_bind_mw(struct ib_qp *qp, struct ib_mw *mw, - struct ib_mw_bind *mw_bind); int mlx4_ib_dealloc_mw(struct ib_mw *mw); struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index 4d1e1c632603..242b94ec105b 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -366,28 +366,6 @@ err_free: return ERR_PTR(err); } -int mlx4_ib_bind_mw(struct ib_qp *qp, struct ib_mw *mw, - struct ib_mw_bind *mw_bind) -{ - struct ib_bind_mw_wr wr; - struct ib_send_wr *bad_wr; - int ret; - - memset(&wr, 0, sizeof(wr)); - wr.wr.opcode = IB_WR_BIND_MW; - wr.wr.wr_id = mw_bind->wr_id; - wr.wr.send_flags = mw_bind->send_flags; - wr.mw = mw; - wr.bind_info = mw_bind->bind_info; - wr.rkey = ib_inc_rkey(mw->rkey); - - ret = mlx4_ib_post_send(qp, &wr.wr, &bad_wr); - if (!ret) - mw->rkey = wr.rkey; - - return ret; -} - int mlx4_ib_dealloc_mw(struct ib_mw *ibmw) { struct mlx4_ib_mw *mw = to_mmw(ibmw); diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 6049644da429..3f5d2af5f8e4 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -115,7 +115,6 @@ static const __be32 mlx4_ib_opcode[] = { [IB_WR_REG_MR] = cpu_to_be32(MLX4_OPCODE_FMR), [IB_WR_MASKED_ATOMIC_CMP_AND_SWP] = cpu_to_be32(MLX4_OPCODE_MASKED_ATOMIC_CS), [IB_WR_MASKED_ATOMIC_FETCH_AND_ADD] = cpu_to_be32(MLX4_OPCODE_MASKED_ATOMIC_FA), - [IB_WR_BIND_MW] = cpu_to_be32(MLX4_OPCODE_BIND_MW), }; static struct mlx4_ib_sqp *to_msqp(struct mlx4_ib_qp *mqp) @@ -2531,25 +2530,6 @@ static void set_reg_seg(struct mlx4_wqe_fmr_seg *fseg, fseg->reserved[1] = 0; } -static void set_bind_seg(struct mlx4_wqe_bind_seg *bseg, - struct ib_bind_mw_wr *wr) -{ - bseg->flags1 = - convert_access(wr->bind_info.mw_access_flags) & - cpu_to_be32(MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_READ | - MLX4_WQE_FMR_AND_BIND_PERM_REMOTE_WRITE | - MLX4_WQE_FMR_AND_BIND_PERM_ATOMIC); - bseg->flags2 = 0; - if (wr->mw->type == IB_MW_TYPE_2) - bseg->flags2 |= cpu_to_be32(MLX4_WQE_BIND_TYPE_2); - if (wr->bind_info.mw_access_flags & IB_ZERO_BASED) - bseg->flags2 |= cpu_to_be32(MLX4_WQE_BIND_ZERO_BASED); - bseg->new_rkey = cpu_to_be32(wr->rkey); - bseg->lkey = cpu_to_be32(wr->bind_info.mr->lkey); - bseg->addr = cpu_to_be64(wr->bind_info.addr); - bseg->length = cpu_to_be64(wr->bind_info.length); -} - static void set_local_inv_seg(struct mlx4_wqe_local_inval_seg *iseg, u32 rkey) { memset(iseg, 0, sizeof(*iseg)); @@ -2870,13 +2850,6 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr, size += sizeof(struct mlx4_wqe_fmr_seg) / 16; break; - case IB_WR_BIND_MW: - ctrl->srcrb_flags |= - cpu_to_be32(MLX4_WQE_CTRL_STRONG_ORDER); - set_bind_seg(wqe, bind_mw_wr(wr)); - wqe += sizeof(struct mlx4_wqe_bind_seg); - size += sizeof(struct mlx4_wqe_bind_seg) / 16; - break; default: /* No extra segments required for sends */ break; diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index 3ce5cfa7a4e0..db2270ad21b2 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -154,9 +154,6 @@ static void handle_good_req(struct ib_wc *wc, struct mlx5_cqe64 *cqe, wc->opcode = IB_WC_MASKED_FETCH_ADD; wc->byte_len = 8; break; - case MLX5_OPCODE_BIND_MW: - wc->opcode = IB_WC_BIND_MW; - break; case MLX5_OPCODE_UMR: wc->opcode = get_umr_comp(wq, idx); break; diff --git a/drivers/infiniband/hw/mthca/mthca_cq.c b/drivers/infiniband/hw/mthca/mthca_cq.c index 40ba83338155..a6531ffe29a6 100644 --- a/drivers/infiniband/hw/mthca/mthca_cq.c +++ b/drivers/infiniband/hw/mthca/mthca_cq.c @@ -608,9 +608,6 @@ static inline int mthca_poll_one(struct mthca_dev *dev, entry->opcode = IB_WC_FETCH_ADD; entry->byte_len = MTHCA_ATOMIC_BYTE_LEN; break; - case MTHCA_OPCODE_BIND_MW: - entry->opcode = IB_WC_BIND_MW; - break; default: entry->opcode = MTHCA_OPCODE_INVALID; break; diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c index f76358c39ebb..c8c661ebe3db 100644 --- a/drivers/infiniband/hw/nes/nes_verbs.c +++ b/drivers/infiniband/hw/nes/nes_verbs.c @@ -206,80 +206,6 @@ static int nes_dealloc_mw(struct ib_mw *ibmw) } -/** - * nes_bind_mw - */ -static int nes_bind_mw(struct ib_qp *ibqp, struct ib_mw *ibmw, - struct ib_mw_bind *ibmw_bind) -{ - u64 u64temp; - struct nes_vnic *nesvnic = to_nesvnic(ibqp->device); - struct nes_device *nesdev = nesvnic->nesdev; - /* struct nes_mr *nesmr = to_nesmw(ibmw); */ - struct nes_qp *nesqp = to_nesqp(ibqp); - struct nes_hw_qp_wqe *wqe; - unsigned long flags = 0; - u32 head; - u32 wqe_misc = 0; - u32 qsize; - - if (nesqp->ibqp_state > IB_QPS_RTS) - return -EINVAL; - - spin_lock_irqsave(&nesqp->lock, flags); - - head = nesqp->hwqp.sq_head; - qsize = nesqp->hwqp.sq_tail; - - /* Check for SQ overflow */ - if (((head + (2 * qsize) - nesqp->hwqp.sq_tail) % qsize) == (qsize - 1)) { - spin_unlock_irqrestore(&nesqp->lock, flags); - return -ENOMEM; - } - - wqe = &nesqp->hwqp.sq_vbase[head]; - /* nes_debug(NES_DBG_MR, "processing sq wqe at %p, head = %u.\n", wqe, head); */ - nes_fill_init_qp_wqe(wqe, nesqp, head); - u64temp = ibmw_bind->wr_id; - set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_SCRATCH_LOW_IDX, u64temp); - wqe_misc = NES_IWARP_SQ_OP_BIND; - - wqe_misc |= NES_IWARP_SQ_WQE_LOCAL_FENCE; - - if (ibmw_bind->send_flags & IB_SEND_SIGNALED) - wqe_misc |= NES_IWARP_SQ_WQE_SIGNALED_COMPL; - - if (ibmw_bind->bind_info.mw_access_flags & IB_ACCESS_REMOTE_WRITE) - wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_WRITE; - if (ibmw_bind->bind_info.mw_access_flags & IB_ACCESS_REMOTE_READ) - wqe_misc |= NES_CQP_STAG_RIGHTS_REMOTE_READ; - - set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_MISC_IDX, wqe_misc); - set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MR_IDX, - ibmw_bind->bind_info.mr->lkey); - set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_MW_IDX, ibmw->rkey); - set_wqe_32bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_LENGTH_LOW_IDX, - ibmw_bind->bind_info.length); - wqe->wqe_words[NES_IWARP_SQ_BIND_WQE_LENGTH_HIGH_IDX] = 0; - u64temp = (u64)ibmw_bind->bind_info.addr; - set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_BIND_WQE_VA_FBO_LOW_IDX, u64temp); - - head++; - if (head >= qsize) - head = 0; - - nesqp->hwqp.sq_head = head; - barrier(); - - nes_write32(nesdev->regs+NES_WQE_ALLOC, - (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id); - - spin_unlock_irqrestore(&nesqp->lock, flags); - - return 0; -} - - /* * nes_alloc_fast_mr */ @@ -3892,7 +3818,6 @@ struct nes_ib_device *nes_init_ofa_device(struct net_device *netdev) nesibdev->ibdev.dereg_mr = nes_dereg_mr; nesibdev->ibdev.alloc_mw = nes_alloc_mw; nesibdev->ibdev.dealloc_mw = nes_dealloc_mw; - nesibdev->ibdev.bind_mw = nes_bind_mw; nesibdev->ibdev.alloc_mr = nes_alloc_mr; nesibdev->ibdev.map_mr_sg = nes_map_mr_sg; diff --git a/drivers/staging/rdma/amso1100/c2_cq.c b/drivers/staging/rdma/amso1100/c2_cq.c index 3ef881f2da0f..7ad0c082485a 100644 --- a/drivers/staging/rdma/amso1100/c2_cq.c +++ b/drivers/staging/rdma/amso1100/c2_cq.c @@ -173,9 +173,6 @@ static inline int c2_poll_one(struct c2_dev *c2dev, case C2_WR_TYPE_RDMA_READ: entry->opcode = IB_WC_RDMA_READ; break; - case C2_WR_TYPE_BIND_MW: - entry->opcode = IB_WC_BIND_MW; - break; case C2_WR_TYPE_RECV: entry->byte_len = be32_to_cpu(ce->bytes_rcvd); entry->opcode = IB_WC_RECV; diff --git a/drivers/staging/rdma/ehca/ehca_iverbs.h b/drivers/staging/rdma/ehca/ehca_iverbs.h index 17ab33b76882..cca5933fcda6 100644 --- a/drivers/staging/rdma/ehca/ehca_iverbs.h +++ b/drivers/staging/rdma/ehca/ehca_iverbs.h @@ -88,9 +88,6 @@ int ehca_dereg_mr(struct ib_mr *mr); struct ib_mw *ehca_alloc_mw(struct ib_pd *pd, enum ib_mw_type type); -int ehca_bind_mw(struct ib_qp *qp, struct ib_mw *mw, - struct ib_mw_bind *mw_bind); - int ehca_dealloc_mw(struct ib_mw *mw); struct ib_fmr *ehca_alloc_fmr(struct ib_pd *pd, diff --git a/drivers/staging/rdma/ehca/ehca_main.c b/drivers/staging/rdma/ehca/ehca_main.c index 8e920a31d5e7..963274ee652a 100644 --- a/drivers/staging/rdma/ehca/ehca_main.c +++ b/drivers/staging/rdma/ehca/ehca_main.c @@ -515,7 +515,6 @@ static int ehca_init_device(struct ehca_shca *shca) shca->ib_device.reg_user_mr = ehca_reg_user_mr; shca->ib_device.dereg_mr = ehca_dereg_mr; shca->ib_device.alloc_mw = ehca_alloc_mw; - shca->ib_device.bind_mw = ehca_bind_mw; shca->ib_device.dealloc_mw = ehca_dealloc_mw; shca->ib_device.alloc_fmr = ehca_alloc_fmr; shca->ib_device.map_phys_fmr = ehca_map_phys_fmr; diff --git a/drivers/staging/rdma/ehca/ehca_mrmw.c b/drivers/staging/rdma/ehca/ehca_mrmw.c index 1c1a8dd09ac5..c6e324522566 100644 --- a/drivers/staging/rdma/ehca/ehca_mrmw.c +++ b/drivers/staging/rdma/ehca/ehca_mrmw.c @@ -413,18 +413,6 @@ alloc_mw_exit0: /*----------------------------------------------------------------------*/ -int ehca_bind_mw(struct ib_qp *qp, - struct ib_mw *mw, - struct ib_mw_bind *mw_bind) -{ - /* TODO: not supported up to now */ - ehca_gen_err("bind MW currently not supported by HCAD"); - - return -EPERM; -} /* end ehca_bind_mw() */ - -/*----------------------------------------------------------------------*/ - int ehca_dealloc_mw(struct ib_mw *mw) { u64 h_ret; diff --git a/drivers/staging/rdma/ehca/ehca_reqs.c b/drivers/staging/rdma/ehca/ehca_reqs.c index 10e2074384f5..11813b880e16 100644 --- a/drivers/staging/rdma/ehca/ehca_reqs.c +++ b/drivers/staging/rdma/ehca/ehca_reqs.c @@ -614,7 +614,6 @@ int ehca_post_srq_recv(struct ib_srq *srq, static const u8 ib_wc_opcode[255] = { [0x01] = IB_WC_RECV+1, [0x02] = IB_WC_RECV_RDMA_WITH_IMM+1, - [0x04] = IB_WC_BIND_MW+1, [0x08] = IB_WC_FETCH_ADD+1, [0x10] = IB_WC_COMP_SWAP+1, [0x20] = IB_WC_RDMA_WRITE+1, diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 86970f3e90b4..177844265c98 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -812,7 +812,6 @@ enum ib_wc_opcode { IB_WC_RDMA_READ, IB_WC_COMP_SWAP, IB_WC_FETCH_ADD, - IB_WC_BIND_MW, IB_WC_LSO, IB_WC_LOCAL_INV, IB_WC_REG_MR, @@ -1110,7 +1109,6 @@ enum ib_wr_opcode { IB_WR_REG_MR, IB_WR_MASKED_ATOMIC_CMP_AND_SWP, IB_WR_MASKED_ATOMIC_FETCH_AND_ADD, - IB_WR_BIND_MW, IB_WR_REG_SIG_MR, /* reserve values for low level drivers' internal use. * These values will not be used at all in the ib core layer. @@ -1145,23 +1143,6 @@ struct ib_sge { u32 lkey; }; -/** - * struct ib_mw_bind_info - Parameters for a memory window bind operation. - * @mr: A memory region to bind the memory window to. - * @addr: The address where the memory window should begin. - * @length: The length of the memory window, in bytes. - * @mw_access_flags: Access flags from enum ib_access_flags for the window. - * - * This struct contains the shared parameters for type 1 and type 2 - * memory window bind operations. - */ -struct ib_mw_bind_info { - struct ib_mr *mr; - u64 addr; - u64 length; - int mw_access_flags; -}; - struct ib_cqe { void (*done)(struct ib_cq *cq, struct ib_wc *wc); }; @@ -1237,19 +1218,6 @@ static inline struct ib_reg_wr *reg_wr(struct ib_send_wr *wr) return container_of(wr, struct ib_reg_wr, wr); } -struct ib_bind_mw_wr { - struct ib_send_wr wr; - struct ib_mw *mw; - /* The new rkey for the memory window. */ - u32 rkey; - struct ib_mw_bind_info bind_info; -}; - -static inline struct ib_bind_mw_wr *bind_mw_wr(struct ib_send_wr *wr) -{ - return container_of(wr, struct ib_bind_mw_wr, wr); -} - struct ib_sig_handover_wr { struct ib_send_wr wr; struct ib_sig_attrs *sig_attrs; @@ -1299,18 +1267,6 @@ enum ib_mr_rereg_flags { IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1) }; -/** - * struct ib_mw_bind - Parameters for a type 1 memory window bind operation. - * @wr_id: Work request id. - * @send_flags: Flags from ib_send_flags enum. - * @bind_info: More parameters of the bind operation. - */ -struct ib_mw_bind { - u64 wr_id; - int send_flags; - struct ib_mw_bind_info bind_info; -}; - struct ib_fmr_attr { int max_pages; int max_maps; @@ -1845,9 +1801,6 @@ struct ib_device { int sg_nents); struct ib_mw * (*alloc_mw)(struct ib_pd *pd, enum ib_mw_type type); - int (*bind_mw)(struct ib_qp *qp, - struct ib_mw *mw, - struct ib_mw_bind *mw_bind); int (*dealloc_mw)(struct ib_mw *mw); struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd, int mr_access_flags, @@ -2975,42 +2928,6 @@ static inline u32 ib_inc_rkey(u32 rkey) return ((rkey + 1) & mask) | (rkey & ~mask); } -/** - * ib_alloc_mw - Allocates a memory window. - * @pd: The protection domain associated with the memory window. - * @type: The type of the memory window (1 or 2). - */ -struct ib_mw *ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type); - -/** - * ib_bind_mw - Posts a work request to the send queue of the specified - * QP, which binds the memory window to the given address range and - * remote access attributes. - * @qp: QP to post the bind work request on. - * @mw: The memory window to bind. - * @mw_bind: Specifies information about the memory window, including - * its address range, remote access rights, and associated memory region. - * - * If there is no immediate error, the function will update the rkey member - * of the mw parameter to its new value. The bind operation can still fail - * asynchronously. - */ -static inline int ib_bind_mw(struct ib_qp *qp, - struct ib_mw *mw, - struct ib_mw_bind *mw_bind) -{ - /* XXX reference counting in corresponding MR? */ - return mw->device->bind_mw ? - mw->device->bind_mw(qp, mw, mw_bind) : - -ENOSYS; -} - -/** - * ib_dealloc_mw - Deallocates a memory window. - * @mw: The memory window to deallocate. - */ -int ib_dealloc_mw(struct ib_mw *mw); - /** * ib_alloc_fmr - Allocates a unmapped fast memory region. * @pd: The protection domain associated with the unmapped region. -- cgit v1.2.3-59-g8ed1b