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authorUrsula Braun <ubraun@linux.vnet.ibm.com>2017-01-09 16:55:19 +0100
committerDavid S. Miller <davem@davemloft.net>2017-01-09 16:07:39 -0500
commitf38ba179c6ca94ebeb0ac6a0956c4ea533151ad8 (patch)
treea061b0fe37bfc4070e7b97aa3600c72fc8bccf2b /net/smc/smc_ib.h
parentcd6851f30386e5e04b5c2253f8e1647ba0ebcd31 (diff)
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.h11
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