cxgb3 only supports 4GB memory regions. The lustre RDMA code uses this
attribute and currently has to code around our bad setting.
Signed-off-by: Steve Wise <[EMAIL PROTECTED]>
---
drivers/infiniband/hw/cxgb3/cxio_hal.h | 1 +
drivers/infiniband/hw/cxgb3/iwch.c | 1 +
drivers/infiniband/hw/cxgb3/iwch.h | 1 +
drivers/infiniband/hw/cxgb3/iwch_provider.c | 2 +-
4 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/infiniband/hw/cxgb3/cxio_hal.h
b/drivers/infiniband/hw/cxgb3/cxio_hal.h
index 99543d6..2bcff7f 100644
--- a/drivers/infiniband/hw/cxgb3/cxio_hal.h
+++ b/drivers/infiniband/hw/cxgb3/cxio_hal.h
@@ -53,6 +53,7 @@
#define T3_MAX_PBL_SIZE 256
#define T3_MAX_RQ_SIZE 1024
#define T3_MAX_NUM_STAG (1<<15)
+#define T3_MAX_MR_SIZE 0x100000000ULL
#define T3_STAG_UNSET 0xffffffff
diff --git a/drivers/infiniband/hw/cxgb3/iwch.c
b/drivers/infiniband/hw/cxgb3/iwch.c
index 0315c9d..98a768f 100644
--- a/drivers/infiniband/hw/cxgb3/iwch.c
+++ b/drivers/infiniband/hw/cxgb3/iwch.c
@@ -83,6 +83,7 @@ static void rnic_init(struct iwch_dev *rnicp)
rnicp->attr.max_phys_buf_entries = T3_MAX_PBL_SIZE;
rnicp->attr.max_pds = T3_MAX_NUM_PD - 1;
rnicp->attr.mem_pgsizes_bitmask = 0x7FFF; /* 4KB-128MB */
+ rnicp->attr.max_mr_size = T3_MAX_MR_SIZE;
rnicp->attr.can_resize_wq = 0;
rnicp->attr.max_rdma_reads_per_qp = 8;
rnicp->attr.max_rdma_read_resources =
diff --git a/drivers/infiniband/hw/cxgb3/iwch.h
b/drivers/infiniband/hw/cxgb3/iwch.h
index caf4e60..238c103 100644
--- a/drivers/infiniband/hw/cxgb3/iwch.h
+++ b/drivers/infiniband/hw/cxgb3/iwch.h
@@ -66,6 +66,7 @@ struct iwch_rnic_attributes {
* size (4k)^i. Phys block list mode unsupported.
*/
u32 mem_pgsizes_bitmask;
+ u64 max_mr_size;
u8 can_resize_wq;
/*
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c
b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index b2ea921..f7df213 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -998,7 +998,7 @@ static int iwch_query_device(struct ib_device *ibdev,
props->device_cap_flags = dev->device_cap_flags;
props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
- props->max_mr_size = ~0ull;
+ props->max_mr_size = dev->attr.max_mr_size;
props->max_qp = dev->attr.max_qps;
props->max_qp_wr = dev->attr.max_wrs;
props->max_sge = dev->attr.max_sge_per_wr;
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