From patchwork Tue Mar 14 14:01:57 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yuval Shaia X-Patchwork-Id: 9623477 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 55D0C60244 for ; Tue, 14 Mar 2017 14:02:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 44A6528595 for ; Tue, 14 Mar 2017 14:02:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 355812859B; Tue, 14 Mar 2017 14:02:49 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7B79D28595 for ; Tue, 14 Mar 2017 14:02:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751581AbdCNOCr (ORCPT ); Tue, 14 Mar 2017 10:02:47 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:32712 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751159AbdCNOCa (ORCPT ); Tue, 14 Mar 2017 10:02:30 -0400 Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id v2EE2C02030010 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 14 Mar 2017 14:02:12 GMT Received: from aserv0121.oracle.com (aserv0121.oracle.com [141.146.126.235]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id v2EE2CoU029578 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Tue, 14 Mar 2017 14:02:12 GMT Received: from abhmp0006.oracle.com (abhmp0006.oracle.com [141.146.116.12]) by aserv0121.oracle.com (8.13.8/8.13.8) with ESMTP id v2EE29uW020803; Tue, 14 Mar 2017 14:02:10 GMT Received: from localhost.localdomain (/77.138.186.148) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 14 Mar 2017 07:02:08 -0700 From: Yuval Shaia To: benve@cisco.com, dgoodell@cisco.com, dledford@redhat.com, sean.hefty@intel.com, hal.rosenstock@gmail.com, monis@mellanox.com, davem@davemloft.net, linux-rdma@vger.kernel.org, netdev@vger.kernel.org Cc: Yuval Shaia Subject: [PATCH v4] {net, IB}/{rxe, usnic}: Utilize generic mac to eui32 function Date: Tue, 14 Mar 2017 16:01:57 +0200 Message-Id: <1489500117-7937-1-git-send-email-yuval.shaia@oracle.com> X-Mailer: git-send-email 2.7.4 X-Source-IP: userv0021.oracle.com [156.151.31.71] Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This logic seems to be duplicated in (at least) three separate files. Move it to one place so code can be re-use. Signed-off-by: Yuval Shaia Reviewed-by: Leon Romanovsky --- v0 -> v1: * Add missing #include * Rename to genaddrconf_ifid_eui48 v1 -> v2: * Reset eui[0] to default if dev_id is used v2 -> v3: * Add helper function to avoid re-setting eui[0] to default if dev_id is used v3 -> v4: * Remove RXE wrappers * Remove addrconf_addr_eui48_xor and do the eui[0] ^= 2 in the basic implementation --- drivers/infiniband/hw/usnic/usnic_common_util.h | 11 +++------- drivers/infiniband/sw/rxe/rxe.c | 4 +++- drivers/infiniband/sw/rxe/rxe_loc.h | 2 -- drivers/infiniband/sw/rxe/rxe_net.c | 28 ------------------------- drivers/infiniband/sw/rxe/rxe_verbs.c | 4 +++- include/net/addrconf.h | 22 +++++++++++++++---- 6 files changed, 27 insertions(+), 44 deletions(-) diff --git a/drivers/infiniband/hw/usnic/usnic_common_util.h b/drivers/infiniband/hw/usnic/usnic_common_util.h index b54986d..d91b035 100644 --- a/drivers/infiniband/hw/usnic/usnic_common_util.h +++ b/drivers/infiniband/hw/usnic/usnic_common_util.h @@ -34,6 +34,8 @@ #ifndef USNIC_CMN_UTIL_H #define USNIC_CMN_UTIL_H +#include + static inline void usnic_mac_to_gid(const char *const mac, char *raw_gid) { @@ -57,14 +59,7 @@ usnic_mac_ip_to_gid(const char *const mac, const __be32 inaddr, char *raw_gid) raw_gid[1] = 0x80; memset(&raw_gid[2], 0, 2); memcpy(&raw_gid[4], &inaddr, 4); - raw_gid[8] = mac[0]^2; - raw_gid[9] = mac[1]; - raw_gid[10] = mac[2]; - raw_gid[11] = 0xff; - raw_gid[12] = 0xfe; - raw_gid[13] = mac[3]; - raw_gid[14] = mac[4]; - raw_gid[15] = mac[5]; + addrconf_addr_eui48(&raw_gid[8], mac); } static inline void diff --git a/drivers/infiniband/sw/rxe/rxe.c b/drivers/infiniband/sw/rxe/rxe.c index b12dd9b..e93f81f 100644 --- a/drivers/infiniband/sw/rxe/rxe.c +++ b/drivers/infiniband/sw/rxe/rxe.c @@ -31,6 +31,7 @@ * SOFTWARE. */ +#include #include "rxe.h" #include "rxe_loc.h" @@ -178,7 +179,8 @@ static int rxe_init_ports(struct rxe_dev *rxe) return -ENOMEM; port->pkey_tbl[0] = 0xffff; - port->port_guid = rxe_port_guid(rxe); + addrconf_addr_eui48((unsigned char *)&port->port_guid, + rxe->ndev->dev_addr); spin_lock_init(&port->port_lock); diff --git a/drivers/infiniband/sw/rxe/rxe_loc.h b/drivers/infiniband/sw/rxe/rxe_loc.h index 272337e..13ed8b5 100644 --- a/drivers/infiniband/sw/rxe/rxe_loc.h +++ b/drivers/infiniband/sw/rxe/rxe_loc.h @@ -145,7 +145,6 @@ int advance_dma_data(struct rxe_dma_info *dma, unsigned int length); int rxe_loopback(struct sk_buff *skb); int rxe_send(struct rxe_dev *rxe, struct rxe_pkt_info *pkt, struct sk_buff *skb); -__be64 rxe_port_guid(struct rxe_dev *rxe); struct sk_buff *rxe_init_packet(struct rxe_dev *rxe, struct rxe_av *av, int paylen, struct rxe_pkt_info *pkt); int rxe_prepare(struct rxe_dev *rxe, struct rxe_pkt_info *pkt, @@ -153,7 +152,6 @@ int rxe_prepare(struct rxe_dev *rxe, struct rxe_pkt_info *pkt, enum rdma_link_layer rxe_link_layer(struct rxe_dev *rxe, unsigned int port_num); const char *rxe_parent_name(struct rxe_dev *rxe, unsigned int port_num); struct device *rxe_dma_device(struct rxe_dev *rxe); -__be64 rxe_node_guid(struct rxe_dev *rxe); int rxe_mcast_add(struct rxe_dev *rxe, union ib_gid *mgid); int rxe_mcast_delete(struct rxe_dev *rxe, union ib_gid *mgid); diff --git a/drivers/infiniband/sw/rxe/rxe_net.c b/drivers/infiniband/sw/rxe/rxe_net.c index d8610960..43b1a0c 100644 --- a/drivers/infiniband/sw/rxe/rxe_net.c +++ b/drivers/infiniband/sw/rxe/rxe_net.c @@ -84,34 +84,6 @@ struct rxe_dev *get_rxe_by_name(const char *name) struct rxe_recv_sockets recv_sockets; -static __be64 rxe_mac_to_eui64(struct net_device *ndev) -{ - unsigned char *mac_addr = ndev->dev_addr; - __be64 eui64; - unsigned char *dst = (unsigned char *)&eui64; - - dst[0] = mac_addr[0] ^ 2; - dst[1] = mac_addr[1]; - dst[2] = mac_addr[2]; - dst[3] = 0xff; - dst[4] = 0xfe; - dst[5] = mac_addr[3]; - dst[6] = mac_addr[4]; - dst[7] = mac_addr[5]; - - return eui64; -} - -__be64 rxe_node_guid(struct rxe_dev *rxe) -{ - return rxe_mac_to_eui64(rxe->ndev); -} - -__be64 rxe_port_guid(struct rxe_dev *rxe) -{ - return rxe_mac_to_eui64(rxe->ndev); -} - struct device *rxe_dma_device(struct rxe_dev *rxe) { struct net_device *ndev; diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c index d2e2eff..09f1bec 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -31,6 +31,7 @@ * SOFTWARE. */ +#include #include "rxe.h" #include "rxe_loc.h" #include "rxe_queue.h" @@ -1236,7 +1237,8 @@ int rxe_register_device(struct rxe_dev *rxe) dev->num_comp_vectors = RXE_NUM_COMP_VECTORS; dev->dma_device = rxe_dma_device(rxe); dev->local_dma_lkey = 0; - dev->node_guid = rxe_node_guid(rxe); + addrconf_addr_eui48((unsigned char *)&dev->node_guid, + rxe->ndev->dev_addr); dev->dma_ops = &rxe_dma_mapping_ops; dev->uverbs_abi_ver = RXE_UVERBS_ABI_VERSION; diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 17c6fd8..cb51bea 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -103,12 +103,24 @@ int addrconf_prefix_rcv_add_addr(struct net *net, struct net_device *dev, u32 addr_flags, bool sllao, bool tokenized, __u32 valid_lft, u32 prefered_lft); +static inline void addrconf_addr_eui48_base(u8 *eui, const char *const addr) +{ + memcpy(eui, addr, 3); + eui[3] = 0xFF; + eui[4] = 0xFE; + memcpy(eui + 5, addr + 3, 3); +} + +static inline void addrconf_addr_eui48(u8 *eui, const char *const addr) +{ + addrconf_addr_eui48_base(eui, addr); + eui[0] ^= 2; +} + static inline int addrconf_ifid_eui48(u8 *eui, struct net_device *dev) { if (dev->addr_len != ETH_ALEN) return -1; - memcpy(eui, dev->dev_addr, 3); - memcpy(eui + 5, dev->dev_addr + 3, 3); /* * The zSeries OSA network cards can be shared among various @@ -123,14 +135,16 @@ static inline int addrconf_ifid_eui48(u8 *eui, struct net_device *dev) * case. Hence the resulting interface identifier has local * scope according to RFC2373. */ + + addrconf_addr_eui48_base(eui, dev->dev_addr); + if (dev->dev_id) { eui[3] = (dev->dev_id >> 8) & 0xFF; eui[4] = dev->dev_id & 0xFF; } else { - eui[3] = 0xFF; - eui[4] = 0xFE; eui[0] ^= 2; } + return 0; }