diff options
Diffstat (limited to 'net/smc/smc_core.h')
| -rw-r--r-- | net/smc/smc_core.h | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h index 521c64a3d8d3..285f9bd8e232 100644 --- a/net/smc/smc_core.h +++ b/net/smc/smc_core.h @@ -115,8 +115,10 @@ struct smc_link { dma_addr_t wr_rx_dma_addr; /* DMA address of wr_rx_bufs */ dma_addr_t wr_rx_v2_dma_addr; /* DMA address of v2 rx buf*/ u64 wr_rx_id; /* seq # of last recv WR */ + u64 wr_rx_id_compl; /* seq # of last completed WR */ u32 wr_rx_cnt; /* number of WR recv buffers */ unsigned long wr_rx_tstamp; /* jiffies when last buf rx */ + wait_queue_head_t wr_rx_empty_wait; /* wait for RQ empty */ struct ib_reg_wr wr_reg; /* WR register memory region */ wait_queue_head_t wr_reg_wait; /* wait for wr_reg result */ @@ -137,6 +139,8 @@ struct smc_link { u8 peer_link_uid[SMC_LGR_ID_SIZE]; /* peer uid */ u8 link_idx; /* index in lgr link array */ u8 link_is_asym; /* is link asymmetric? */ + u8 clearing : 1; /* link is being cleared */ + refcount_t refcnt; /* link reference count */ struct smc_link_group *lgr; /* parent link group */ struct work_struct link_down_wrk; /* wrk to bring link down */ char ibname[IB_DEVICE_NAME_MAX]; /* ib device name */ @@ -166,9 +170,11 @@ struct smc_buf_desc { struct { /* SMC-R */ struct sg_table sgt[SMC_LINKS_PER_LGR_MAX]; /* virtual buffer */ - struct ib_mr *mr_rx[SMC_LINKS_PER_LGR_MAX]; - /* for rmb only: memory region + struct ib_mr *mr[SMC_LINKS_PER_LGR_MAX]; + /* memory region: for rmb and + * vzalloced sndbuf * incl. rkey provided to peer + * and lkey provided to local */ u32 order; /* allocation order */ @@ -178,8 +184,11 @@ struct smc_buf_desc { /* mem region registered */ u8 is_map_ib[SMC_LINKS_PER_LGR_MAX]; /* mem region mapped to lnk */ + u8 is_dma_need_sync; u8 is_reg_err; /* buffer registration err */ + u8 is_vm; + /* virtually contiguous */ }; struct { /* SMC-D */ unsigned short sba_idx; @@ -214,6 +223,12 @@ enum smc_lgr_type { /* redundancy state of lgr */ SMC_LGR_ASYMMETRIC_LOCAL, /* local has 1, peer 2 active RNICs */ }; +enum smcr_buf_type { /* types of SMC-R sndbufs and RMBs */ + SMCR_PHYS_CONT_BUFS = 0, + SMCR_VIRT_CONT_BUFS = 1, + SMCR_MIXED_BUFS = 2, +}; + enum smc_llc_flowtype { SMC_LLC_FLOW_NONE = 0, SMC_LLC_FLOW_ADD_LINK = 2, @@ -249,6 +264,7 @@ struct smc_link_group { u8 terminating : 1;/* lgr is terminating */ u8 freeing : 1; /* lgr is being freed */ + refcount_t refcnt; /* lgr reference count */ bool is_smcd; /* SMC-R or SMC-D */ u8 smc_version; u8 negotiated_eid[SMC_MAX_EID_LEN]; @@ -274,6 +290,7 @@ struct smc_link_group { /* used rtoken elements */ u8 next_link_id; enum smc_lgr_type type; + enum smcr_buf_type buf_type; /* redundancy state */ u8 pnet_id[SMC_MAX_PNETID_LEN + 1]; /* pnet id of this lgr */ @@ -409,6 +426,11 @@ static inline struct smc_connection *smc_lgr_find_conn( return res; } +static inline bool smc_conn_lgr_valid(struct smc_connection *conn) +{ + return conn->lgr && conn->alert_token_local; +} + /* * Returns true if the specified link is usable. * @@ -487,6 +509,8 @@ struct smc_clc_msg_accept_confirm; void smc_lgr_cleanup_early(struct smc_link_group *lgr); void smc_lgr_terminate_sched(struct smc_link_group *lgr); +void smc_lgr_hold(struct smc_link_group *lgr); +void smc_lgr_put(struct smc_link_group *lgr); void smcr_port_add(struct smc_ib_device *smcibdev, u8 ibport); void smcr_port_err(struct smc_ib_device *smcibdev, u8 ibport); void smc_smcd_terminate(struct smcd_dev *dev, u64 peer_gid, @@ -503,10 +527,8 @@ void smc_rtoken_set(struct smc_link_group *lgr, int link_idx, int link_idx_new, __be32 nw_rkey_known, __be64 nw_vaddr, __be32 nw_rkey); void smc_rtoken_set2(struct smc_link_group *lgr, int rtok_idx, int link_id, __be64 nw_vaddr, __be32 nw_rkey); -void smc_sndbuf_sync_sg_for_cpu(struct smc_connection *conn); void smc_sndbuf_sync_sg_for_device(struct smc_connection *conn); void smc_rmb_sync_sg_for_cpu(struct smc_connection *conn); -void smc_rmb_sync_sg_for_device(struct smc_connection *conn); int smc_vlan_by_tcpsk(struct socket *clcsock, struct smc_init_info *ini); void smc_conn_free(struct smc_connection *conn); @@ -518,6 +540,8 @@ void smc_core_exit(void); int smcr_link_init(struct smc_link_group *lgr, struct smc_link *lnk, u8 link_idx, struct smc_init_info *ini); void smcr_link_clear(struct smc_link *lnk, bool log); +void smcr_link_hold(struct smc_link *lnk); +void smcr_link_put(struct smc_link *lnk); void smc_switch_link_and_count(struct smc_connection *conn, struct smc_link *to_lnk); int smcr_buf_map_lgr(struct smc_link *lnk); @@ -525,7 +549,7 @@ int smcr_buf_reg_lgr(struct smc_link *lnk); void smcr_lgr_set_type(struct smc_link_group *lgr, enum smc_lgr_type new_type); void smcr_lgr_set_type_asym(struct smc_link_group *lgr, enum smc_lgr_type new_type, int asym_lnk_idx); -int smcr_link_reg_rmb(struct smc_link *link, struct smc_buf_desc *rmb_desc); +int smcr_link_reg_buf(struct smc_link *link, struct smc_buf_desc *rmb_desc); struct smc_link *smc_switch_conns(struct smc_link_group *lgr, struct smc_link *from_lnk, bool is_dev_err); void smcr_link_down_cond(struct smc_link *lnk); |