diff options
Diffstat (limited to 'net/rds/ib.h')
| -rw-r--r-- | net/rds/ib.h | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/net/rds/ib.h b/net/rds/ib.h index 455ae73047fe..1378b854cac0 100644 --- a/net/rds/ib.h +++ b/net/rds/ib.h @@ -15,6 +15,8 @@ #define RDS_IB_DEFAULT_RECV_WR 1024 #define RDS_IB_DEFAULT_SEND_WR 256 +#define RDS_IB_DEFAULT_RETRY_COUNT 2 + #define RDS_IB_SUPPORTED_PROTOCOLS 0x00000003 /* minor versions supported */ extern struct list_head rds_ib_devices; @@ -157,9 +159,6 @@ struct rds_ib_device { struct ib_pd *pd; struct ib_mr *mr; struct rds_ib_mr_pool *mr_pool; - int fmr_page_shift; - int fmr_page_size; - u64 fmr_page_mask; unsigned int fmr_max_remaps; unsigned int max_fmrs; int max_sge; @@ -247,6 +246,7 @@ extern struct ib_client rds_ib_client; extern unsigned int fmr_pool_size; extern unsigned int fmr_message_size; +extern unsigned int rds_ib_retry_count; extern spinlock_t ib_nodev_conns_lock; extern struct list_head ib_nodev_conns; @@ -355,17 +355,25 @@ extern ctl_table rds_ib_sysctl_table[]; /* * Helper functions for getting/setting the header and data SGEs in * RDS packets (not RDMA) + * + * From version 3.1 onwards, header is in front of data in the sge. */ static inline struct ib_sge * rds_ib_header_sge(struct rds_ib_connection *ic, struct ib_sge *sge) { - return &sge[0]; + if (ic->conn->c_version > RDS_PROTOCOL_3_0) + return &sge[0]; + else + return &sge[1]; } static inline struct ib_sge * rds_ib_data_sge(struct rds_ib_connection *ic, struct ib_sge *sge) { - return &sge[1]; + if (ic->conn->c_version > RDS_PROTOCOL_3_0) + return &sge[1]; + else + return &sge[0]; } #endif |