From ea1075edcbab7d92f4e4ccf5490043f796bf78be Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Tue, 12 Feb 2019 21:12:47 -0700 Subject: RDMA: Add and use rdma_for_each_port We have many loops iterating over all of the end port numbers on a struct ib_device, simplify them with a for_each helper. Reviewed-by: Parav Pandit Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/cache.c | 6 +++--- drivers/infiniband/core/cma.c | 7 +++---- drivers/infiniband/core/device.c | 26 ++++++++++++-------------- drivers/infiniband/core/mad.c | 4 ++-- drivers/infiniband/core/nldev.c | 4 ++-- drivers/infiniband/core/security.c | 11 +++++++---- drivers/infiniband/core/sysfs.c | 12 +++--------- drivers/infiniband/core/user_mad.c | 9 +++++---- drivers/infiniband/ulp/ipoib/ipoib_main.c | 4 ++-- drivers/infiniband/ulp/srp/ib_srp.c | 5 +++-- 10 files changed, 42 insertions(+), 46 deletions(-) (limited to 'drivers/infiniband') diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 2338d0b3a0ca..3d137d8381a9 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -1428,7 +1428,7 @@ static void ib_cache_event(struct ib_event_handler *handler, int ib_cache_setup_one(struct ib_device *device) { - int p; + unsigned int p; int err; rwlock_init(&device->cache.lock); @@ -1447,8 +1447,8 @@ int ib_cache_setup_one(struct ib_device *device) 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); diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index c43512752b8a..68c997be2429 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -659,7 +659,7 @@ static int cma_acquire_dev_by_src_ip(struct rdma_id_private *id_priv) 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) @@ -673,8 +673,7 @@ static int cma_acquire_dev_by_src_ip(struct rdma_id_private *id_priv) 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]; @@ -4548,7 +4547,7 @@ static void cma_add_one(struct ib_device *device) 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)) diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index f7e206033d39..71582f848a9c 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -470,10 +470,8 @@ static int verify_immutable(const struct ib_device *dev, u8 port) 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 @@ -482,13 +480,13 @@ static int read_port_immutable(struct ib_device *device) * 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) @@ -540,9 +538,9 @@ static void ib_policy_change_task(struct work_struct *work) 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, @@ -1060,10 +1058,9 @@ void ib_enum_roce_netdev(struct ib_device *ib_dev, 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; @@ -1217,9 +1214,10 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid, 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; diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 7870823bac47..e742a6a2c138 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -3326,9 +3326,9 @@ error: 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; diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c index e7350d9d60e9..85f6f2bcce40 100644 --- a/drivers/infiniband/core/nldev.c +++ b/drivers/infiniband/core/nldev.c @@ -774,7 +774,7 @@ static int nldev_port_get_dumpit(struct sk_buff *skb, 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); @@ -786,7 +786,7 @@ static int nldev_port_get_dumpit(struct sk_buff *skb, 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 diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c index dad6a94a43f3..492702b83600 100644 --- a/drivers/infiniband/core/security.c +++ b/drivers/infiniband/core/security.c @@ -422,12 +422,15 @@ void ib_close_shared_qp_security(struct ib_qp_security *sec) 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) @@ -561,9 +564,9 @@ void ib_security_cache_change(struct ib_device *device, 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, diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 9335b15c2e38..9b6a065bdfa5 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -1308,23 +1308,17 @@ static void ib_free_port_attrs(struct ib_device *device) 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; diff --git a/drivers/infiniband/core/user_mad.c b/drivers/infiniband/core/user_mad.c index 3ebd211a87ed..02b7947ab215 100644 --- a/drivers/infiniband/core/user_mad.c +++ b/drivers/infiniband/core/user_mad.c @@ -1323,14 +1323,15 @@ free: 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); diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index ee4cca80f00b..48eda16db1a7 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -2495,7 +2495,7 @@ static void ipoib_add_one(struct ib_device *device) 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); @@ -2504,7 +2504,7 @@ static void ipoib_add_one(struct ib_device *device) 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); diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c index 84184910f038..151f4eba84b8 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.c +++ b/drivers/infiniband/ulp/srp/ib_srp.c @@ -4127,7 +4127,8 @@ static void srp_add_one(struct ib_device *device) 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; @@ -4194,7 +4195,7 @@ static void srp_add_one(struct ib_device *device) 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); -- cgit v1.2.3-59-g8ed1b