Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  mlx4_core: Increase command timeout for INIT_HCA to 10 seconds
  IPoIB/cm: Use common CQ for CM send completions
  IB/uverbs: Fix checking of userspace object ownership
  IB/mlx4: Sanity check userspace send queue sizes
  IPoIB: Rewrite "if (!likely(...))" as "if (unlikely(!(...)))"
  IB/ehca: Enable large page MRs by default
  IB/ehca: Change meaning of hca_cap_mr_pgsize
  IB/ehca: Fix ehca_encode_hwpage_size() and alloc_fmr()
  IB/ehca: Fix masking error in {,re}reg_phys_mr()
  IB/ehca: Supply QP token for SRQ base QPs
  IPoIB: Use round_jiffies() for ah_reap_task
  RDMA/cma: Fix deadlock destroying listen requests
  RDMA/cma: Add locking around QP accesses
  IB/mthca: Avoid alignment traps when writing doorbells
  mlx4_core: Kill mlx4_write64_raw()

1 files changed, 17 insertions, 3 deletions

diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
index 7a7dab890f6d..c6cd38c5321f 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/infiniband/hw/ehca/ehca_main.c
@@ -65,7 +65,7 @@ int ehca_port_act_time = 30;
 int ehca_poll_all_eqs  = 1;
 int ehca_static_rate   = -1;
 int ehca_scaling_code  = 0;
-int ehca_mr_largepage  = 0;
+int ehca_mr_largepage  = 1;
 
 module_param_named(open_aqp1,     ehca_open_aqp1,     int, S_IRUGO);
 module_param_named(debug_level,   ehca_debug_level,   int, S_IRUGO);
@@ -260,13 +260,20 @@ static struct cap_descr {
 	{ HCA_CAP_MINI_QP, "HCA_CAP_MINI_QP" },
 };
 
-int ehca_sense_attributes(struct ehca_shca *shca)
+static int ehca_sense_attributes(struct ehca_shca *shca)
 {
 	int i, ret = 0;
 	u64 h_ret;
 	struct hipz_query_hca *rblock;
 	struct hipz_query_port *port;
 
+	static const u32 pgsize_map[] = {
+		HCA_CAP_MR_PGSIZE_4K,  0x1000,
+		HCA_CAP_MR_PGSIZE_64K, 0x10000,
+		HCA_CAP_MR_PGSIZE_1M,  0x100000,
+		HCA_CAP_MR_PGSIZE_16M, 0x1000000,
+	};
+
 	rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
 	if (!rblock) {
 		ehca_gen_err("Cannot allocate rblock memory.");
@@ -329,8 +336,15 @@ int ehca_sense_attributes(struct ehca_shca *shca)
 		if (EHCA_BMASK_GET(hca_cap_descr[i].mask, shca->hca_cap))
 			ehca_gen_dbg("   %s", hca_cap_descr[i].descr);
 
-	shca->hca_cap_mr_pgsize = rblock->memory_page_size_supported;
+	/* translate supported MR page sizes; always support 4K */
+	shca->hca_cap_mr_pgsize = EHCA_PAGESIZE;
+	if (ehca_mr_largepage) { /* support extra sizes only if enabled */
+		for (i = 0; i < ARRAY_SIZE(pgsize_map); i += 2)
+			if (rblock->memory_page_size_supported & pgsize_map[i])
+				shca->hca_cap_mr_pgsize |= pgsize_map[i + 1];
+	}
 
+	/* query max MTU from first port -- it's the same for all ports */
 	port = (struct hipz_query_port *)rblock;
 	h_ret = hipz_h_query_port(shca->ipz_hca_handle, 1, port);
 	if (h_ret != H_SUCCESS) {