diff options
| author | Sean Hefty <sean.hefty@intel.com> | 2006-06-18 05:37:39 +0200 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2006-06-18 05:37:39 +0200 |
| commit | 4e00d69454a8747798de11dc4eeef1edeee5ce98 (patch) | |
| tree | e09582595f80e1e7479c4f8b5a559be0db9ac251 /drivers/infiniband/core/verbs.c | |
| parent | IB/ucm: Get rid of duplicate P_Key parameter (diff) | |
| download | linux-4e00d69454a8747798de11dc4eeef1edeee5ce98.tar.xz linux-4e00d69454a8747798de11dc4eeef1edeee5ce98.zip | |
IB: Add ib_init_ah_from_wc()
Add a function to initialize address handle attributes from a work
completion. This functionality is duplicated by both verbs and the CM.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/core/verbs.c')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 44 |
1 files changed, 28 insertions, 16 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index b78e7dc69330..468999c38803 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -125,35 +125,47 @@ struct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr) } EXPORT_SYMBOL(ib_create_ah); -struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, - struct ib_grh *grh, u8 port_num) +int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, + struct ib_grh *grh, struct ib_ah_attr *ah_attr) { - struct ib_ah_attr ah_attr; u32 flow_class; u16 gid_index; int ret; - memset(&ah_attr, 0, sizeof ah_attr); - ah_attr.dlid = wc->slid; - ah_attr.sl = wc->sl; - ah_attr.src_path_bits = wc->dlid_path_bits; - ah_attr.port_num = port_num; + memset(ah_attr, 0, sizeof *ah_attr); + ah_attr->dlid = wc->slid; + ah_attr->sl = wc->sl; + ah_attr->src_path_bits = wc->dlid_path_bits; + ah_attr->port_num = port_num; if (wc->wc_flags & IB_WC_GRH) { - ah_attr.ah_flags = IB_AH_GRH; - ah_attr.grh.dgid = grh->sgid; + ah_attr->ah_flags = IB_AH_GRH; + ah_attr->grh.dgid = grh->sgid; - ret = ib_find_cached_gid(pd->device, &grh->dgid, &port_num, + ret = ib_find_cached_gid(device, &grh->dgid, &port_num, &gid_index); if (ret) - return ERR_PTR(ret); + return ret; - ah_attr.grh.sgid_index = (u8) gid_index; + ah_attr->grh.sgid_index = (u8) gid_index; flow_class = be32_to_cpu(grh->version_tclass_flow); - ah_attr.grh.flow_label = flow_class & 0xFFFFF; - ah_attr.grh.traffic_class = (flow_class >> 20) & 0xFF; - ah_attr.grh.hop_limit = grh->hop_limit; + ah_attr->grh.flow_label = flow_class & 0xFFFFF; + ah_attr->grh.hop_limit = grh->hop_limit; + ah_attr->grh.traffic_class = (flow_class >> 20) & 0xFF; } + return 0; +} +EXPORT_SYMBOL(ib_init_ah_from_wc); + +struct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, + struct ib_grh *grh, u8 port_num) +{ + struct ib_ah_attr ah_attr; + int ret; + + ret = ib_init_ah_from_wc(pd->device, port_num, wc, grh, &ah_attr); + if (ret) + return ERR_PTR(ret); return ib_create_ah(pd, &ah_attr); } |