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Message-Id: <200804071457.36248.ossrosch@linux.vnet.ibm.com>
Date: Mon, 7 Apr 2008 13:57:33 +0100
From: Stefan Roscher <ossrosch@...ux.vnet.ibm.com>
To: ewg@...ts.openfabrics.org, general@...ts.openfabrics.org,
linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org,
rolandd@...co.com
Cc: hnguyen@...ibm.com, raisch@...ibm.com, fenkes@...ibm.com
Subject: [PATCH] IB/ehca: extend query_device() and query_port() to support all values for ibv_devinfo
Also, introduce a few inline helper functions to make the code more readable.
Signed-off-by: Stefan Roscher <stefan.roscher@...ibm.com>
---
drivers/infiniband/hw/ehca/ehca_hca.c | 128 ++++++++++++++++++++------------
1 files changed, 80 insertions(+), 48 deletions(-)
diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c
index 8832123..f89c5f8 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 inline 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 inline 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 inline 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 +200,14 @@ 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 +217,7 @@ 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;
--
1.5.2
--
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