diff options
Diffstat (limited to 'net/smc/smc_ism.h')
| -rw-r--r-- | net/smc/smc_ism.h | 73 |
1 files changed, 69 insertions, 4 deletions
diff --git a/net/smc/smc_ism.h b/net/smc/smc_ism.h index d6b2db604fe8..a1575e31df73 100644 --- a/net/smc/smc_ism.h +++ b/net/smc/smc_ism.h @@ -12,9 +12,13 @@ #include <linux/uio.h> #include <linux/types.h> #include <linux/mutex.h> +#include <linux/dibs.h> #include "smc.h" +#define SMC_EMULATED_ISM_CHID_MASK 0xFF00 +#define SMC_ISM_IDENT_MASK 0x00FFFF + struct smcd_dev_list { /* List of SMCD devices */ struct list_head list; struct mutex mutex; /* Protects list of devices */ @@ -28,21 +32,35 @@ struct smc_ism_vlanid { /* VLAN id set on ISM device */ refcount_t refcnt; /* Reference count */ }; +struct smc_ism_seid { + u8 seid_string[24]; + u8 serial_number[4]; + u8 type[4]; +}; + struct smcd_dev; -int smc_ism_cantalk(u64 peer_gid, unsigned short vlan_id, struct smcd_dev *dev); +int smc_ism_cantalk(struct smcd_gid *peer_gid, unsigned short vlan_id, + struct smcd_dev *dev); void smc_ism_set_conn(struct smc_connection *conn); void smc_ism_unset_conn(struct smc_connection *conn); int smc_ism_get_vlan(struct smcd_dev *dev, unsigned short vlan_id); int smc_ism_put_vlan(struct smcd_dev *dev, unsigned short vlan_id); int smc_ism_register_dmb(struct smc_link_group *lgr, int buf_size, struct smc_buf_desc *dmb_desc); -int smc_ism_unregister_dmb(struct smcd_dev *dev, struct smc_buf_desc *dmb_desc); +void smc_ism_unregister_dmb(struct smcd_dev *dev, + struct smc_buf_desc *dmb_desc); +bool smc_ism_support_dmb_nocopy(struct smcd_dev *smcd); +int smc_ism_attach_dmb(struct smcd_dev *dev, u64 token, + struct smc_buf_desc *dmb_desc); +int smc_ism_detach_dmb(struct smcd_dev *dev, u64 token); int smc_ism_signal_shutdown(struct smc_link_group *lgr); void smc_ism_get_system_eid(u8 **eid); u16 smc_ism_get_chid(struct smcd_dev *dev); bool smc_ism_is_v2_capable(void); -void smc_ism_init(void); +void smc_ism_set_v2_capable(void); +int smc_ism_init(void); +void smc_ism_exit(void); int smcd_nl_get_device(struct sk_buff *skb, struct netlink_callback *cb); static inline int smc_ism_write(struct smcd_dev *smcd, u64 dmb_tok, @@ -51,8 +69,55 @@ static inline int smc_ism_write(struct smcd_dev *smcd, u64 dmb_tok, { int rc; - rc = smcd->ops->move_data(smcd, dmb_tok, idx, sf, offset, data, len); + rc = smcd->dibs->ops->move_data(smcd->dibs, dmb_tok, idx, sf, offset, + data, len); + return rc < 0 ? rc : 0; } +static inline bool __smc_ism_is_emulated(u16 chid) +{ + /* CHIDs in range of 0xFF00 to 0xFFFF are reserved + * for Emulated-ISM device. + * + * loopback-ism: 0xFFFF + * virtio-ism: 0xFF00 ~ 0xFFFE + */ + return ((chid & 0xFF00) == 0xFF00); +} + +static inline bool smc_ism_is_emulated(struct smcd_dev *smcd) +{ + u16 chid = smcd->dibs->ops->get_fabric_id(smcd->dibs); + + return __smc_ism_is_emulated(chid); +} + +static inline bool smc_ism_is_loopback(struct dibs_dev *dibs) +{ + return (dibs->ops->get_fabric_id(dibs) == DIBS_LOOPBACK_FABRIC); +} + +static inline void copy_to_smcdgid(struct smcd_gid *sgid, uuid_t *dibs_gid) +{ + __be64 temp; + + memcpy(&temp, dibs_gid, sizeof(sgid->gid)); + sgid->gid = ntohll(temp); + memcpy(&temp, (uint8_t *)dibs_gid + sizeof(sgid->gid), + sizeof(sgid->gid_ext)); + sgid->gid_ext = ntohll(temp); +} + +static inline void copy_to_dibsgid(uuid_t *dibs_gid, struct smcd_gid *sgid) +{ + __be64 temp; + + temp = htonll(sgid->gid); + memcpy(dibs_gid, &temp, sizeof(sgid->gid)); + temp = htonll(sgid->gid_ext); + memcpy((uint8_t *)dibs_gid + sizeof(sgid->gid), &temp, + sizeof(sgid->gid_ext)); +} + #endif |