diff options
Diffstat (limited to 'net/tipc/ib_media.c')
-rw-r--r-- | net/tipc/ib_media.c | 124 |
1 files changed, 17 insertions, 107 deletions
diff --git a/net/tipc/ib_media.c b/net/tipc/ib_media.c index 62d91aeda058..844a77e25828 100644 --- a/net/tipc/ib_media.c +++ b/net/tipc/ib_media.c @@ -42,94 +42,9 @@ #include "core.h" #include "bearer.h" -/** - * ib_media_addr_set - initialize Infiniband media address structure - * - * Media-dependent "value" field stores MAC address in first 6 bytes - * and zeroes out the remaining bytes. - */ -static void ib_media_addr_set(const struct tipc_bearer *tb_ptr, - struct tipc_media_addr *a, char *mac) -{ - BUILD_BUG_ON(sizeof(a->value) < INFINIBAND_ALEN); - memcpy(a->value, mac, INFINIBAND_ALEN); - a->media_id = TIPC_MEDIA_TYPE_IB; - a->broadcast = !memcmp(mac, tb_ptr->bcast_addr.value, INFINIBAND_ALEN); -} - -/** - * send_msg - send a TIPC message out over an InfiniBand interface - */ -static int send_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr, - struct tipc_media_addr *dest) -{ - struct sk_buff *clone; - int delta; - struct net_device *dev = tb_ptr->dev; - - clone = skb_clone(buf, GFP_ATOMIC); - if (!clone) - return 0; - - delta = dev->hard_header_len - skb_headroom(buf); - if ((delta > 0) && - pskb_expand_head(clone, SKB_DATA_ALIGN(delta), 0, GFP_ATOMIC)) { - kfree_skb(clone); - return 0; - } - - skb_reset_network_header(clone); - clone->dev = dev; - clone->protocol = htons(ETH_P_TIPC); - dev_hard_header(clone, dev, ETH_P_TIPC, dest->value, - dev->dev_addr, clone->len); - dev_queue_xmit(clone); - return 0; -} - -/** - * enable_media - attach TIPC bearer to an InfiniBand interface - */ -static int enable_media(struct tipc_bearer *tb_ptr) -{ - struct net_device *dev; - char *driver_name = strchr((const char *)tb_ptr->name, ':') + 1; - - /* Find device with specified name */ - dev = dev_get_by_name(&init_net, driver_name); - if (!dev) - return -ENODEV; - - /* Associate TIPC bearer with InfiniBand bearer */ - tb_ptr->dev = dev; - tb_ptr->usr_handle = NULL; - memset(tb_ptr->bcast_addr.value, 0, sizeof(tb_ptr->bcast_addr.value)); - memcpy(tb_ptr->bcast_addr.value, dev->broadcast, INFINIBAND_ALEN); - tb_ptr->bcast_addr.media_id = TIPC_MEDIA_TYPE_IB; - tb_ptr->bcast_addr.broadcast = 1; - tb_ptr->mtu = dev->mtu; - ib_media_addr_set(tb_ptr, &tb_ptr->addr, (char *)dev->dev_addr); - rcu_assign_pointer(dev->tipc_ptr, tb_ptr); - return 0; -} - -/** - * disable_media - detach TIPC bearer from an InfiniBand interface - * - * Mark InfiniBand bearer as inactive so that incoming buffers are thrown away, - * then get worker thread to complete bearer cleanup. (Can't do cleanup - * here because cleanup code needs to sleep and caller holds spinlocks.) - */ -static void disable_media(struct tipc_bearer *tb_ptr) -{ - RCU_INIT_POINTER(tb_ptr->dev->tipc_ptr, NULL); - dev_put(tb_ptr->dev); -} - -/** - * ib_addr2str - convert InfiniBand address to string - */ -static int ib_addr2str(struct tipc_media_addr *a, char *str_buf, int str_size) +/* convert InfiniBand address to string */ +static int tipc_ib_addr2str(struct tipc_media_addr *a, char *str_buf, + int str_size) { if (str_size < 60) /* 60 = 19 * strlen("xx:") + strlen("xx\0") */ return 1; @@ -139,10 +54,8 @@ static int ib_addr2str(struct tipc_media_addr *a, char *str_buf, int str_size) return 0; } -/** - * ib_addr2msg - convert InfiniBand address format to message header format - */ -static int ib_addr2msg(struct tipc_media_addr *a, char *msg_area) +/* convert InfiniBand address format to message header format */ +static int tipc_ib_addr2msg(struct tipc_media_addr *a, char *msg_area) { memset(msg_area, 0, TIPC_MEDIA_ADDR_SIZE); msg_area[TIPC_MEDIA_TYPE_OFFSET] = TIPC_MEDIA_TYPE_IB; @@ -150,30 +63,27 @@ static int ib_addr2msg(struct tipc_media_addr *a, char *msg_area) return 0; } -/** - * ib_msg2addr - convert message header address format to InfiniBand format - */ -static int ib_msg2addr(const struct tipc_bearer *tb_ptr, - struct tipc_media_addr *a, char *msg_area) +/* convert message header address format to InfiniBand format */ +static int tipc_ib_msg2addr(const struct tipc_bearer *tb_ptr, + struct tipc_media_addr *a, char *msg_area) { - ib_media_addr_set(tb_ptr, a, msg_area); + tipc_l2_media_addr_set(tb_ptr, a, msg_area); return 0; } -/* - * InfiniBand media registration info - */ +/* InfiniBand media registration info */ struct tipc_media ib_media_info = { - .send_msg = send_msg, - .enable_media = enable_media, - .disable_media = disable_media, - .addr2str = ib_addr2str, - .addr2msg = ib_addr2msg, - .msg2addr = ib_msg2addr, + .send_msg = tipc_l2_send_msg, + .enable_media = tipc_enable_l2_media, + .disable_media = tipc_disable_l2_media, + .addr2str = tipc_ib_addr2str, + .addr2msg = tipc_ib_addr2msg, + .msg2addr = tipc_ib_msg2addr, .priority = TIPC_DEF_LINK_PRI, .tolerance = TIPC_DEF_LINK_TOL, .window = TIPC_DEF_LINK_WIN, .type_id = TIPC_MEDIA_TYPE_IB, + .hwaddr_len = INFINIBAND_ALEN, .name = "ib" }; |