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path: root/drivers/infiniband/hw/mlx4/ah.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx4/ah.c')
-rw-r--r--drivers/infiniband/hw/mlx4/ah.c115
1 files changed, 68 insertions, 47 deletions
diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c
index 17fcb0b49d0e..3cbac5f7b0f5 100644
--- a/drivers/infiniband/hw/mlx4/ah.c
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -46,25 +46,32 @@ static struct ib_ah *create_ib_ah(struct ib_pd *pd,
{
struct mlx4_dev *dev = to_mdev(pd->device)->dev;
- ah->av.ib.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
- ah->av.ib.g_slid = ah_attr->src_path_bits;
- ah->av.ib.sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
- if (ah_attr->ah_flags & IB_AH_GRH) {
+ ah->av.ib.port_pd = cpu_to_be32(to_mpd(pd)->pdn |
+ (rdma_ah_get_port_num(ah_attr) << 24));
+ ah->av.ib.g_slid = rdma_ah_get_path_bits(ah_attr);
+ ah->av.ib.sl_tclass_flowlabel =
+ cpu_to_be32(rdma_ah_get_sl(ah_attr) << 28);
+ if (rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH) {
+ const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);
+
ah->av.ib.g_slid |= 0x80;
- ah->av.ib.gid_index = ah_attr->grh.sgid_index;
- ah->av.ib.hop_limit = ah_attr->grh.hop_limit;
+ ah->av.ib.gid_index = grh->sgid_index;
+ ah->av.ib.hop_limit = grh->hop_limit;
ah->av.ib.sl_tclass_flowlabel |=
- cpu_to_be32((ah_attr->grh.traffic_class << 20) |
- ah_attr->grh.flow_label);
- memcpy(ah->av.ib.dgid, ah_attr->grh.dgid.raw, 16);
+ cpu_to_be32((grh->traffic_class << 20) |
+ grh->flow_label);
+ memcpy(ah->av.ib.dgid, grh->dgid.raw, 16);
}
- ah->av.ib.dlid = cpu_to_be16(ah_attr->dlid);
- if (ah_attr->static_rate) {
- ah->av.ib.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET;
- while (ah->av.ib.stat_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&
- !(1 << ah->av.ib.stat_rate & dev->caps.stat_rate_support))
- --ah->av.ib.stat_rate;
+ ah->av.ib.dlid = cpu_to_be16(rdma_ah_get_dlid(ah_attr));
+ if (rdma_ah_get_static_rate(ah_attr)) {
+ u8 static_rate = rdma_ah_get_static_rate(ah_attr) +
+ MLX4_STAT_RATE_OFFSET;
+
+ while (static_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&
+ !(1 << static_rate & dev->caps.stat_rate_support))
+ --static_rate;
+ ah->av.ib.stat_rate = static_rate;
}
return &ah->ibah;
@@ -81,17 +88,18 @@ static struct ib_ah *create_iboe_ah(struct ib_pd *pd,
u16 vlan_tag = 0xffff;
union ib_gid sgid;
struct ib_gid_attr gid_attr;
+ const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);
int ret;
- memcpy(&in6, ah_attr->grh.dgid.raw, sizeof(in6));
+ memcpy(&in6, grh->dgid.raw, sizeof(in6));
if (rdma_is_multicast_addr(&in6)) {
is_mcast = 1;
rdma_get_mcast_mac(&in6, ah->av.eth.mac);
} else {
memcpy(ah->av.eth.mac, ah_attr->dmac, ETH_ALEN);
}
- ret = ib_get_cached_gid(pd->device, ah_attr->port_num,
- ah_attr->grh.sgid_index, &sgid, &gid_attr);
+ ret = ib_get_cached_gid(pd->device, rdma_ah_get_port_num(ah_attr),
+ grh->sgid_index, &sgid, &gid_attr);
if (ret)
return ERR_PTR(ret);
eth_zero_addr(ah->av.eth.s_mac);
@@ -102,32 +110,36 @@ static struct ib_ah *create_iboe_ah(struct ib_pd *pd,
dev_put(gid_attr.ndev);
}
if (vlan_tag < 0x1000)
- vlan_tag |= (ah_attr->sl & 7) << 13;
- ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn | (ah_attr->port_num << 24));
- ret = mlx4_ib_gid_index_to_real_index(ibdev, ah_attr->port_num, ah_attr->grh.sgid_index);
+ vlan_tag |= (rdma_ah_get_sl(ah_attr) & 7) << 13;
+ ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn |
+ (rdma_ah_get_port_num(ah_attr) << 24));
+ ret = mlx4_ib_gid_index_to_real_index(ibdev,
+ rdma_ah_get_port_num(ah_attr),
+ grh->sgid_index);
if (ret < 0)
return ERR_PTR(ret);
ah->av.eth.gid_index = ret;
ah->av.eth.vlan = cpu_to_be16(vlan_tag);
- ah->av.eth.hop_limit = ah_attr->grh.hop_limit;
- if (ah_attr->static_rate) {
- ah->av.eth.stat_rate = ah_attr->static_rate + MLX4_STAT_RATE_OFFSET;
+ ah->av.eth.hop_limit = grh->hop_limit;
+ if (rdma_ah_get_static_rate(ah_attr)) {
+ ah->av.eth.stat_rate = rdma_ah_get_static_rate(ah_attr) +
+ MLX4_STAT_RATE_OFFSET;
while (ah->av.eth.stat_rate > IB_RATE_2_5_GBPS + MLX4_STAT_RATE_OFFSET &&
!(1 << ah->av.eth.stat_rate & dev->caps.stat_rate_support))
--ah->av.eth.stat_rate;
}
ah->av.eth.sl_tclass_flowlabel |=
- cpu_to_be32((ah_attr->grh.traffic_class << 20) |
- ah_attr->grh.flow_label);
+ cpu_to_be32((grh->traffic_class << 20) |
+ grh->flow_label);
/*
* HW requires multicast LID so we just choose one.
*/
if (is_mcast)
ah->av.ib.dlid = cpu_to_be16(0xc000);
- memcpy(ah->av.eth.dgid, ah_attr->grh.dgid.raw, 16);
- ah->av.eth.sl_tclass_flowlabel |= cpu_to_be32(ah_attr->sl << 29);
-
+ memcpy(ah->av.eth.dgid, grh->dgid.raw, 16);
+ ah->av.eth.sl_tclass_flowlabel |= cpu_to_be32(rdma_ah_get_sl(ah_attr)
+ << 29);
return &ah->ibah;
}
@@ -142,8 +154,10 @@ struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
if (!ah)
return ERR_PTR(-ENOMEM);
- if (rdma_port_get_link_layer(pd->device, ah_attr->port_num) == IB_LINK_LAYER_ETHERNET) {
- if (!(ah_attr->ah_flags & IB_AH_GRH)) {
+ if (rdma_port_get_link_layer(pd->device,
+ rdma_ah_get_port_num(ah_attr)) ==
+ IB_LINK_LAYER_ETHERNET) {
+ if (!(rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH)) {
ret = ERR_PTR(-EINVAL);
} else {
/*
@@ -171,28 +185,35 @@ int mlx4_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr)
enum rdma_link_layer ll;
memset(ah_attr, 0, sizeof *ah_attr);
- ah_attr->port_num = be32_to_cpu(ah->av.ib.port_pd) >> 24;
- ll = rdma_port_get_link_layer(ibah->device, ah_attr->port_num);
+ rdma_ah_set_port_num(ah_attr,
+ be32_to_cpu(ah->av.ib.port_pd) >> 24);
+ ll = rdma_port_get_link_layer(ibah->device,
+ rdma_ah_get_port_num(ah_attr));
if (ll == IB_LINK_LAYER_ETHERNET)
- ah_attr->sl = be32_to_cpu(ah->av.eth.sl_tclass_flowlabel) >> 29;
+ rdma_ah_set_sl(ah_attr,
+ be32_to_cpu(ah->av.eth.sl_tclass_flowlabel)
+ >> 29);
else
- ah_attr->sl = be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 28;
+ rdma_ah_set_sl(ah_attr,
+ be32_to_cpu(ah->av.ib.sl_tclass_flowlabel)
+ >> 28);
- ah_attr->dlid = ll == IB_LINK_LAYER_INFINIBAND ? be16_to_cpu(ah->av.ib.dlid) : 0;
+ rdma_ah_set_dlid(ah_attr, (ll == IB_LINK_LAYER_INFINIBAND) ?
+ be16_to_cpu(ah->av.ib.dlid) : 0);
if (ah->av.ib.stat_rate)
- ah_attr->static_rate = ah->av.ib.stat_rate - MLX4_STAT_RATE_OFFSET;
- ah_attr->src_path_bits = ah->av.ib.g_slid & 0x7F;
+ rdma_ah_set_static_rate(ah_attr,
+ ah->av.ib.stat_rate -
+ MLX4_STAT_RATE_OFFSET);
+ rdma_ah_set_path_bits(ah_attr, ah->av.ib.g_slid & 0x7F);
if (mlx4_ib_ah_grh_present(ah)) {
- ah_attr->ah_flags = IB_AH_GRH;
-
- ah_attr->grh.traffic_class =
- be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) >> 20;
- ah_attr->grh.flow_label =
- be32_to_cpu(ah->av.ib.sl_tclass_flowlabel) & 0xfffff;
- ah_attr->grh.hop_limit = ah->av.ib.hop_limit;
- ah_attr->grh.sgid_index = ah->av.ib.gid_index;
- memcpy(ah_attr->grh.dgid.raw, ah->av.ib.dgid, 16);
+ u32 tc_fl = be32_to_cpu(ah->av.ib.sl_tclass_flowlabel);
+
+ rdma_ah_set_grh(ah_attr, NULL,
+ tc_fl & 0xfffff, ah->av.ib.gid_index,
+ ah->av.ib.hop_limit,
+ tc_fl >> 20);
+ rdma_ah_set_dgid_raw(ah_attr, ah->av.ib.dgid);
}
return 0;
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-08 11:44:41 +0300