- 'radix_tree_for_each_slot'
- 'radix_tree_for_each_tagged'
- 'rbtree_postorder_for_each_entry_safe'
+ - 'rdma_for_each_port'
- 'resource_list_for_each_entry'
- 'resource_list_for_each_entry_safe'
- 'rhl_for_each_entry_rcu'
int ib_cache_setup_one(struct ib_device *device)
{
- int p;
+ unsigned int p;
int err;
rwlock_init(&device->cache.lock);
return err;
}
- for (p = 0; p <= rdma_end_port(device) - rdma_start_port(device); ++p)
- ib_cache_update(device, p + rdma_start_port(device), true);
+ rdma_for_each_port (device, p)
+ ib_cache_update(device, p, true);
INIT_IB_EVENT_HANDLER(&device->cache.event_handler,
device, ib_cache_event);
struct cma_device *cma_dev;
enum ib_gid_type gid_type;
int ret = -ENODEV;
- u8 port;
+ unsigned int port;
if (dev_addr->dev_type != ARPHRD_INFINIBAND &&
id_priv->id.ps == RDMA_PS_IPOIB)
mutex_lock(&lock);
list_for_each_entry(cma_dev, &dev_list, list) {
- for (port = rdma_start_port(cma_dev->device);
- port <= rdma_end_port(cma_dev->device); port++) {
+ rdma_for_each_port (cma_dev->device, port) {
gidp = rdma_protocol_roce(cma_dev->device, port) ?
&iboe_gid : &gid;
gid_type = cma_dev->default_gid_type[port - 1];
if (!cma_dev->default_roce_tos)
goto free_gid_type;
- for (i = rdma_start_port(device); i <= rdma_end_port(device); i++) {
+ rdma_for_each_port (device, i) {
supported_gids = roce_gid_type_mask_support(device, i);
WARN_ON(!supported_gids);
if (supported_gids & (1 << CMA_PREFERRED_ROCE_GID_TYPE))
static int read_port_immutable(struct ib_device *device)
{
+ unsigned int port;
int ret;
- u8 start_port = rdma_start_port(device);
- u8 end_port = rdma_end_port(device);
- u8 port;
/**
* device->port_immutable is indexed directly by the port number to make
* Therefore port_immutable is declared as a 1 based array with
* potential empty slots at the beginning.
*/
- device->port_immutable = kcalloc(end_port + 1,
- sizeof(*device->port_immutable),
- GFP_KERNEL);
+ device->port_immutable =
+ kcalloc(rdma_end_port(device) + 1,
+ sizeof(*device->port_immutable), GFP_KERNEL);
if (!device->port_immutable)
return -ENOMEM;
- for (port = start_port; port <= end_port; ++port) {
+ rdma_for_each_port (device, port) {
ret = device->ops.get_port_immutable(
device, port, &device->port_immutable[port]);
if (ret)
down_read(&devices_rwsem);
xa_for_each_marked (&devices, index, dev, DEVICE_REGISTERED) {
- int i;
+ unsigned int i;
- for (i = rdma_start_port(dev); i <= rdma_end_port(dev); i++) {
+ rdma_for_each_port (dev, i) {
u64 sp;
int ret = ib_get_cached_subnet_prefix(dev,
i,
roce_netdev_callback cb,
void *cookie)
{
- u8 port;
+ unsigned int port;
- for (port = rdma_start_port(ib_dev); port <= rdma_end_port(ib_dev);
- port++)
+ rdma_for_each_port (ib_dev, port)
if (rdma_protocol_roce(ib_dev, port)) {
struct net_device *idev = NULL;
u8 *port_num, u16 *index)
{
union ib_gid tmp_gid;
- int ret, port, i;
+ unsigned int port;
+ int ret, i;
- for (port = rdma_start_port(device); port <= rdma_end_port(device); ++port) {
+ rdma_for_each_port (device, port) {
if (!rdma_protocol_ib(device, port))
continue;
static void ib_mad_remove_device(struct ib_device *device, void *client_data)
{
- int i;
+ unsigned int i;
- for (i = rdma_start_port(device); i <= rdma_end_port(device); i++) {
+ rdma_for_each_port (device, i) {
if (!rdma_cap_ib_mad(device, i))
continue;
u32 idx = 0;
u32 ifindex;
int err;
- u32 p;
+ unsigned int p;
err = nlmsg_parse(cb->nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
nldev_policy, NULL);
if (!device)
return -EINVAL;
- for (p = rdma_start_port(device); p <= rdma_end_port(device); ++p) {
+ rdma_for_each_port (device, p) {
/*
* The dumpit function returns all information from specific
* index. This specific index is taken from the netlink
int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev)
{
- u8 i = rdma_start_port(dev);
+ unsigned int i;
bool is_ib = false;
int ret;
- while (i <= rdma_end_port(dev) && !is_ib)
+ rdma_for_each_port (dev, i) {
is_ib = rdma_protocol_ib(dev, i++);
+ if (is_ib)
+ break;
+ }
/* If this isn't an IB device don't create the security context */
if (!is_ib)
void ib_security_release_port_pkey_list(struct ib_device *device)
{
struct pkey_index_qp_list *pkey, *tmp_pkey;
- int i;
+ unsigned int i;
- for (i = rdma_start_port(device); i <= rdma_end_port(device); i++) {
+ rdma_for_each_port (device, i) {
list_for_each_entry_safe(pkey,
tmp_pkey,
&device->port_pkey_list[i].pkey_list,
static int ib_setup_port_attrs(struct ib_device *device)
{
+ unsigned int port;
int ret;
- int i;
device->ports_kobj = kobject_create_and_add("ports", &device->dev.kobj);
if (!device->ports_kobj)
return -ENOMEM;
- if (rdma_cap_ib_switch(device)) {
- ret = add_port(device, 0);
+ rdma_for_each_port (device, port) {
+ ret = add_port(device, port);
if (ret)
goto err_put;
- } else {
- for (i = 1; i <= device->phys_port_cnt; ++i) {
- ret = add_port(device, i);
- if (ret)
- goto err_put;
- }
}
return 0;
static void ib_umad_remove_one(struct ib_device *device, void *client_data)
{
struct ib_umad_device *umad_dev = client_data;
- int i;
+ unsigned int i;
if (!umad_dev)
return;
- for (i = 0; i <= rdma_end_port(device) - rdma_start_port(device); ++i) {
- if (rdma_cap_ib_mad(device, i + rdma_start_port(device)))
- ib_umad_kill_port(&umad_dev->ports[i]);
+ rdma_for_each_port (device, i) {
+ if (rdma_cap_ib_mad(device, i))
+ ib_umad_kill_port(
+ &umad_dev->ports[i - rdma_start_port(device)]);
}
/* balances kref_init() */
ib_umad_dev_put(umad_dev);
struct list_head *dev_list;
struct net_device *dev;
struct ipoib_dev_priv *priv;
- int p;
+ unsigned int p;
int count = 0;
dev_list = kmalloc(sizeof(*dev_list), GFP_KERNEL);
INIT_LIST_HEAD(dev_list);
- for (p = rdma_start_port(device); p <= rdma_end_port(device); ++p) {
+ rdma_for_each_port (device, p) {
if (!rdma_protocol_ib(device, p))
continue;
dev = ipoib_add_port("ib%d", device, p);
struct srp_device *srp_dev;
struct ib_device_attr *attr = &device->attrs;
struct srp_host *host;
- int mr_page_shift, p;
+ int mr_page_shift;
+ unsigned int p;
u64 max_pages_per_mr;
unsigned int flags = 0;
WARN_ON_ONCE(srp_dev->global_rkey == 0);
}
- for (p = rdma_start_port(device); p <= rdma_end_port(device); ++p) {
+ rdma_for_each_port (device, p) {
host = srp_add_port(srp_dev, p);
if (host)
list_add_tail(&host->list, &srp_dev->dev_list);
}
/**
+ * rdma_for_each_port - Iterate over all valid port numbers of the IB device
+ * @device - The struct ib_device * to iterate over
+ * @iter - The unsigned int to store the port number
+ */
+#define rdma_for_each_port(device, iter) \
+ for (iter = rdma_start_port(device + BUILD_BUG_ON_ZERO(!__same_type( \
+ unsigned int, iter))); \
+ iter <= rdma_end_port(device); (iter)++)
+
+/**
* rdma_end_port - Return the last valid port number for the device
* specified
*