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{net,IB}/{rxe,usnic}: Utilize generic mac to eui32 function

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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 <yuval.shaia@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
This commit is contained in:
Yuval Shaia 2017-03-14 16:01:57 +02:00 committed by Doug Ledford
parent a7c81326ca
commit 4d6f28591f
6 changed files with 27 additions and 44 deletions
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11
drivers/infiniband/hw/usnic/usnic_common_util.h
View File

@ -34,6 +34,8 @@
#ifndef USNIC_CMN_UTIL_H
#define USNIC_CMN_UTIL_H
#include <net/addrconf.h>
static inline void
usnic_mac_ip_to_gid(const char *const mac, const __be32 inaddr, char *raw_gid)
{
@ -41,14 +43,7 @@ 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);
}
#endif /* USNIC_COMMON_UTIL_H */

4
drivers/infiniband/sw/rxe/rxe.c
View File

@ -31,6 +31,7 @@
* SOFTWARE.
*/
#include <net/addrconf.h>
#include "rxe.h"
#include "rxe_loc.h"
@ -180,7 +181,8 @@ 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);

2
drivers/infiniband/sw/rxe/rxe_loc.h
View File

@ -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);

28
drivers/infiniband/sw/rxe/rxe_net.c
View File

@ -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;

4
drivers/infiniband/sw/rxe/rxe_verbs.c
View File

@ -32,6 +32,7 @@
*/
#include <linux/dma-mapping.h>
#include <net/addrconf.h>
#include "rxe.h"
#include "rxe_loc.h"
#include "rxe_queue.h"
@ -1238,7 +1239,8 @@ int rxe_register_device(struct rxe_dev *rxe)
dev->num_comp_vectors = RXE_NUM_COMP_VECTORS;
dev->dev.parent = 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->dev.dma_ops = &dma_virt_ops;
dev->uverbs_abi_ver = RXE_UVERBS_ABI_VERSION;

22
include/net/addrconf.h
View File

@ -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;
}