diff options
| author | Ursula Braun <ubraun@linux.vnet.ibm.com> | 2017-01-09 16:55:14 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-09 16:07:38 -0500 |
| commit | a4cf0443c4143b19e42389a1674b5b65224544ce (patch) | |
| tree | ddb307b528feb0c8bc38e64a7caa9ee51f9d8da5 /net/smc/smc_ib.h | |
| parent | ac7138746e14137a451f8539614cdd349153e0c0 (diff) | |
| download | linux-a4cf0443c4143b19e42389a1674b5b65224544ce.tar.gz linux-a4cf0443c4143b19e42389a1674b5b65224544ce.tar.bz2 linux-a4cf0443c4143b19e42389a1674b5b65224544ce.zip | |
smc: introduce SMC as an IB-client
* create a list of SMC IB-devices
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 | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h new file mode 100644 index 000000000000..63613e715f4f --- /dev/null +++ b/net/smc/smc_ib.h @@ -0,0 +1,40 @@ +/* + * Shared Memory Communications over RDMA (SMC-R) and RoCE + * + * Definitions for IB environment + * + * Copyright IBM Corp. 2016 + * + * Author(s): Ursula Braun <Ursula Braun@linux.vnet.ibm.com> + */ + +#ifndef _SMC_IB_H +#define _SMC_IB_H + +#include <rdma/ib_verbs.h> + +#define SMC_MAX_PORTS 2 /* Max # of ports */ +#define SMC_GID_SIZE sizeof(union ib_gid) + +struct smc_ib_devices { /* list of smc ib devices definition */ + struct list_head list; + spinlock_t lock; /* protects list of smc ib devices */ +}; + +extern struct smc_ib_devices smc_ib_devices; /* list of smc ib devices */ + +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 */ + 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 */ +}; + +int smc_ib_register_client(void) __init; +void smc_ib_unregister_client(void); +bool smc_ib_port_active(struct smc_ib_device *smcibdev, u8 ibport); +int smc_ib_remember_port_attr(struct smc_ib_device *smcibdev, u8 ibport); + +#endif |