diff options
Diffstat (limited to 'drivers/infiniband/hw/ehca/ehca_hca.c')
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_hca.c | 127 |
1 files changed, 79 insertions, 48 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c index 8832123d1d0..2515cbde7e6 100644 --- a/drivers/infiniband/hw/ehca/ehca_hca.c +++ b/drivers/infiniband/hw/ehca/ehca_hca.c @@ -43,6 +43,11 @@ #include "ehca_iverbs.h" #include "hcp_if.h" +static unsigned int limit_uint(unsigned int value) +{ + return min_t(unsigned int, value, INT_MAX); +} + int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props) { int i, ret = 0; @@ -83,37 +88,40 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props) props->vendor_id = rblock->vendor_id >> 8; props->vendor_part_id = rblock->vendor_part_id >> 16; props->hw_ver = rblock->hw_ver; - props->max_qp = min_t(unsigned, rblock->max_qp, INT_MAX); - props->max_qp_wr = min_t(unsigned, rblock->max_wqes_wq, INT_MAX); - props->max_sge = min_t(unsigned, rblock->max_sge, INT_MAX); - props->max_sge_rd = min_t(unsigned, rblock->max_sge_rd, INT_MAX); - props->max_cq = min_t(unsigned, rblock->max_cq, INT_MAX); - props->max_cqe = min_t(unsigned, rblock->max_cqe, INT_MAX); - props->max_mr = min_t(unsigned, rblock->max_mr, INT_MAX); - props->max_mw = min_t(unsigned, rblock->max_mw, INT_MAX); - props->max_pd = min_t(unsigned, rblock->max_pd, INT_MAX); - props->max_ah = min_t(unsigned, rblock->max_ah, INT_MAX); - props->max_fmr = min_t(unsigned, rblock->max_mr, INT_MAX); + props->max_qp = limit_uint(rblock->max_qp); + props->max_qp_wr = limit_uint(rblock->max_wqes_wq); + props->max_sge = limit_uint(rblock->max_sge); + props->max_sge_rd = limit_uint(rblock->max_sge_rd); + props->max_cq = limit_uint(rblock->max_cq); + props->max_cqe = limit_uint(rblock->max_cqe); + props->max_mr = limit_uint(rblock->max_mr); + props->max_mw = limit_uint(rblock->max_mw); + props->max_pd = limit_uint(rblock->max_pd); + props->max_ah = limit_uint(rblock->max_ah); + props->max_ee = limit_uint(rblock->max_rd_ee_context); + props->max_rdd = limit_uint(rblock->max_rd_domain); + props->max_fmr = limit_uint(rblock->max_mr); + props->local_ca_ack_delay = limit_uint(rblock->local_ca_ack_delay); + props->max_qp_rd_atom = limit_uint(rblock->max_rr_qp); + props->max_ee_rd_atom = limit_uint(rblock->max_rr_ee_context); + props->max_res_rd_atom = limit_uint(rblock->max_rr_hca); + props->max_qp_init_rd_atom = limit_uint(rblock->max_act_wqs_qp); + props->max_ee_init_rd_atom = limit_uint(rblock->max_act_wqs_ee_context); if (EHCA_BMASK_GET(HCA_CAP_SRQ, shca->hca_cap)) { - props->max_srq = props->max_qp; - props->max_srq_wr = props->max_qp_wr; + props->max_srq = limit_uint(props->max_qp); + props->max_srq_wr = limit_uint(props->max_qp_wr); props->max_srq_sge = 3; } - props->max_pkeys = 16; - props->local_ca_ack_delay - = rblock->local_ca_ack_delay; - props->max_raw_ipv6_qp - = min_t(unsigned, rblock->max_raw_ipv6_qp, INT_MAX); - props->max_raw_ethy_qp - = min_t(unsigned, rblock->max_raw_ethy_qp, INT_MAX); - props->max_mcast_grp - = min_t(unsigned, rblock->max_mcast_grp, INT_MAX); - props->max_mcast_qp_attach - = min_t(unsigned, rblock->max_mcast_qp_attach, INT_MAX); + props->max_pkeys = 16; + props->local_ca_ack_delay = limit_uint(rblock->local_ca_ack_delay); + props->max_raw_ipv6_qp = limit_uint(rblock->max_raw_ipv6_qp); + props->max_raw_ethy_qp = limit_uint(rblock->max_raw_ethy_qp); + props->max_mcast_grp = limit_uint(rblock->max_mcast_grp); + props->max_mcast_qp_attach = limit_uint(rblock->max_mcast_qp_attach); props->max_total_mcast_qp_attach - = min_t(unsigned, rblock->max_total_mcast_qp_attach, INT_MAX); + = limit_uint(rblock->max_total_mcast_qp_attach); /* translate device capabilities */ props->device_cap_flags = IB_DEVICE_SYS_IMAGE_GUID | @@ -128,6 +136,46 @@ query_device1: return ret; } +static int map_mtu(struct ehca_shca *shca, u32 fw_mtu) +{ + switch (fw_mtu) { + case 0x1: + return IB_MTU_256; + case 0x2: + return IB_MTU_512; + case 0x3: + return IB_MTU_1024; + case 0x4: + return IB_MTU_2048; + case 0x5: + return IB_MTU_4096; + default: + ehca_err(&shca->ib_device, "Unknown MTU size: %x.", + fw_mtu); + return 0; + } +} + +static int map_number_of_vls(struct ehca_shca *shca, u32 vl_cap) +{ + switch (vl_cap) { + case 0x1: + return 1; + case 0x2: + return 2; + case 0x3: + return 4; + case 0x4: + return 8; + case 0x5: + return 15; + default: + ehca_err(&shca->ib_device, "invalid Vl Capability: %x.", + vl_cap); + return 0; + } +} + int ehca_query_port(struct ib_device *ibdev, u8 port, struct ib_port_attr *props) { @@ -152,31 +200,13 @@ int ehca_query_port(struct ib_device *ibdev, memset(props, 0, sizeof(struct ib_port_attr)); - switch (rblock->max_mtu) { - case 0x1: - props->active_mtu = props->max_mtu = IB_MTU_256; - break; - case 0x2: - props->active_mtu = props->max_mtu = IB_MTU_512; - break; - case 0x3: - props->active_mtu = props->max_mtu = IB_MTU_1024; - break; - case 0x4: - props->active_mtu = props->max_mtu = IB_MTU_2048; - break; - case 0x5: - props->active_mtu = props->max_mtu = IB_MTU_4096; - break; - default: - ehca_err(&shca->ib_device, "Unknown MTU size: %x.", - rblock->max_mtu); - break; - } - + props->active_mtu = props->max_mtu = map_mtu(shca, rblock->max_mtu); props->port_cap_flags = rblock->capability_mask; props->gid_tbl_len = rblock->gid_tbl_len; - props->max_msg_sz = rblock->max_msg_sz; + if (rblock->max_msg_sz) + props->max_msg_sz = rblock->max_msg_sz; + else + props->max_msg_sz = 0x1 << 31; props->bad_pkey_cntr = rblock->bad_pkey_cntr; props->qkey_viol_cntr = rblock->qkey_viol_cntr; props->pkey_tbl_len = rblock->pkey_tbl_len; @@ -186,6 +216,7 @@ int ehca_query_port(struct ib_device *ibdev, props->sm_sl = rblock->sm_sl; props->subnet_timeout = rblock->subnet_timeout; props->init_type_reply = rblock->init_type_reply; + props->max_vl_num = map_number_of_vls(shca, rblock->vl_cap); if (rblock->state && rblock->phys_width) { props->phys_state = rblock->phys_pstate; |