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smc: socket closing and linkgroup cleanup

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smc_shutdown() and smc_release() handling
delayed linkgroup cleanup for linkgroups without connections

Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ursula Braun
2017-01-09 16:55:25 +01:00
committed by David S. Miller
parent 952310ccf2
commit b38d732477
11 changed files with 668 additions and 36 deletions
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18
net/smc/smc.h
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@@ -30,6 +30,16 @@ enum smc_state { /* possible states of an SMC socket */
SMC_INIT = 2,
SMC_CLOSED = 7,
SMC_LISTEN = 10,
/* normal close */
SMC_PEERCLOSEWAIT1 = 20,
SMC_PEERCLOSEWAIT2 = 21,
SMC_APPFINCLOSEWAIT = 24,
SMC_APPCLOSEWAIT1 = 22,
SMC_APPCLOSEWAIT2 = 23,
SMC_PEERFINCLOSEWAIT = 25,
/* abnormal close */
SMC_PEERABORTWAIT = 26,
SMC_PROCESSABORT = 27,
};
struct smc_link_group;
@@ -164,7 +174,13 @@ struct smc_sock { /* smc sock container */
struct work_struct smc_listen_work;/* prepare new accept socket */
struct list_head accept_q; /* sockets to be accepted */
spinlock_t accept_q_lock; /* protects accept_q */
struct delayed_work sock_put_work; /* final socket freeing */
bool use_fallback; /* fallback to tcp */
u8 wait_close_tx_prepared : 1;
/* shutdown wr or close
* started, waiting for unsent
* data to be sent
*/
};
static inline struct smc_sock *smc_sk(const struct sock *sk)
@@ -250,5 +266,7 @@ void smc_conn_free(struct smc_connection *conn);
int smc_conn_create(struct smc_sock *smc, __be32 peer_in_addr,
struct smc_ib_device *smcibdev, u8 ibport,
struct smc_clc_msg_local *lcl, int srv_first_contact);
struct sock *smc_accept_dequeue(struct sock *parent, struct socket *new_sock);
void smc_close_non_accepted(struct sock *sk);
#endif /* __SMC_H */