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| author | Ursula Braun <ubraun@linux.vnet.ibm.com> | 2017-01-09 16:55:19 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-09 16:07:39 -0500 |
| commit | f38ba179c6ca94ebeb0ac6a0956c4ea533151ad8 (patch) | |
| tree | a061b0fe37bfc4070e7b97aa3600c72fc8bccf2b /net/smc/smc_ib.h | |
| parent | cd6851f30386e5e04b5c2253f8e1647ba0ebcd31 (diff) | |
| download | linux-f38ba179c6ca94ebeb0ac6a0956c4ea533151ad8.tar.gz linux-f38ba179c6ca94ebeb0ac6a0956c4ea533151ad8.tar.xz | |
smc: work request (WR) base for use by LLC and CDC
The base containers for RDMA transport are work requests and completion
queue entries processed through Infiniband verbs:
* allocate and initialize these areas
* map these areas to DMA
* implement the basic communication consisting of work request posting
and receival of completion queue events
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_ib.h')
| -rw-r--r-- | net/smc/smc_ib.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h index c3b61726861a..441fd168911d 100644 --- a/net/smc/smc_ib.h +++ b/net/smc/smc_ib.h @@ -16,6 +16,8 @@ #define SMC_MAX_PORTS 2 /* Max # of ports */ #define SMC_GID_SIZE sizeof(union ib_gid) +#define SMC_IB_MAX_SEND_SGE 2 + struct smc_ib_devices { /* list of smc ib devices definition */ struct list_head list; spinlock_t lock; /* protects list of smc ib devices */ @@ -27,12 +29,17 @@ struct smc_ib_device { /* ib-device infos for smc */ struct list_head list; struct ib_device *ibdev; struct ib_port_attr pattr[SMC_MAX_PORTS]; /* ib dev. port attrs */ + struct ib_cq *roce_cq_send; /* send completion queue */ + struct ib_cq *roce_cq_recv; /* recv completion queue */ + struct tasklet_struct send_tasklet; /* called by send cq handler */ + struct tasklet_struct recv_tasklet; /* called by recv cq handler */ char mac[SMC_MAX_PORTS][6]; /* mac address per port*/ union ib_gid gid[SMC_MAX_PORTS]; /* gid per port */ u8 initialized : 1; /* ib dev CQ, evthdl done */ }; struct smc_buf_desc; +struct smc_link; int smc_ib_register_client(void) __init; void smc_ib_unregister_client(void); @@ -41,5 +48,9 @@ int smc_ib_remember_port_attr(struct smc_ib_device *smcibdev, u8 ibport); int smc_ib_buf_map(struct smc_ib_device *smcibdev, int buf_size, struct smc_buf_desc *buf_slot, enum dma_data_direction data_direction); +void smc_ib_dealloc_protection_domain(struct smc_link *lnk); +int smc_ib_create_protection_domain(struct smc_link *lnk); +void smc_ib_destroy_queue_pair(struct smc_link *lnk); +int smc_ib_create_queue_pair(struct smc_link *lnk); #endif |