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net/smc: Eliminate struct smc_ism_position

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This struct is used in a single place only, and its usage generates
inefficient code. Time to clean up!

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-and-tested-by: Stefan Raspl <raspl@linux.ibm.com>
Signed-off-by: Wenjia Zhang < wenjia@linux.ibm.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Heiko Carstens 2022-07-25 16:09:57 +02:00 committed by David S. Miller
parent 2f0f6b176e
commit eb481b02bd
3 changed files with 14 additions and 27 deletions
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11
net/smc/smc_ism.c
View File

@ -33,17 +33,6 @@ int smc_ism_cantalk(u64 peer_gid, unsigned short vlan_id, struct smcd_dev *smcd)
vlan_id);
}
int smc_ism_write(struct smcd_dev *smcd, const struct smc_ism_position *pos,
void *data, size_t len)
{
int rc;
rc = smcd->ops->move_data(smcd, pos->token, pos->index, pos->signal,
pos->offset, data, len);
return rc < 0 ? rc : 0;
}
void smc_ism_get_system_eid(u8 **eid)
{
if (!smc_ism_v2_capable)

20
net/smc/smc_ism.h
View File

@ -28,13 +28,6 @@ struct smc_ism_vlanid { /* VLAN id set on ISM device */
refcount_t refcnt; /* Reference count */
};
struct smc_ism_position { /* ISM device position to write to */
u64 token; /* Token of DMB */
u32 offset; /* Offset into DMBE */
u8 index; /* Index of DMBE */
u8 signal; /* Generate interrupt on owner side */
};
struct smcd_dev;
int smc_ism_cantalk(u64 peer_gid, unsigned short vlan_id, struct smcd_dev *dev);
@ -45,12 +38,21 @@ int smc_ism_put_vlan(struct smcd_dev *dev, unsigned short vlan_id);
int smc_ism_register_dmb(struct smc_link_group *lgr, int buf_size,
struct smc_buf_desc *dmb_desc);
int smc_ism_unregister_dmb(struct smcd_dev *dev, struct smc_buf_desc *dmb_desc);
int smc_ism_write(struct smcd_dev *dev, const struct smc_ism_position *pos,
void *data, size_t len);
int smc_ism_signal_shutdown(struct smc_link_group *lgr);
void smc_ism_get_system_eid(u8 **eid);
u16 smc_ism_get_chid(struct smcd_dev *dev);
bool smc_ism_is_v2_capable(void);
void smc_ism_init(void);
int smcd_nl_get_device(struct sk_buff *skb, struct netlink_callback *cb);
static inline int smc_ism_write(struct smcd_dev *smcd, u64 dmb_tok,
unsigned int idx, bool sf, unsigned int offset,
void *data, size_t len)
{
int rc;
rc = smcd->ops->move_data(smcd, dmb_tok, idx, sf, offset, data, len);
return rc < 0 ? rc : 0;
}
#endif

10
net/smc/smc_tx.c
View File

@ -320,15 +320,11 @@ int smc_tx_sendpage(struct smc_sock *smc, struct page *page, int offset,
int smcd_tx_ism_write(struct smc_connection *conn, void *data, size_t len,
u32 offset, int signal)
{
struct smc_ism_position pos;
int rc;
memset(&pos, 0, sizeof(pos));
pos.token = conn->peer_token;
pos.index = conn->peer_rmbe_idx;
pos.offset = conn->tx_off + offset;
pos.signal = signal;
rc = smc_ism_write(conn->lgr->smcd, &pos, data, len);
rc = smc_ism_write(conn->lgr->smcd, conn->peer_token,
conn->peer_rmbe_idx, signal, conn->tx_off + offset,
data, len);
if (rc)
conn->local_tx_ctrl.conn_state_flags.peer_conn_abort = 1;
return rc;