[ofa-general] [PATCH REPOST RFCv2 1/2] RDMA/Core: Add local dma lkey support.
Steve Wise
swise at opengridcomputing.com
Mon Jun 30 10:53:01 PDT 2008
From: Steve Wise <swise at opengridcomputing.com>
- Change the IB_DEVICE_ZERO_STAG flag to the transport-neutral name
IB_DEVICE_LOCAL_DMA_LKEY.
- Add local_dma_lkey u32 to the ib_device struct. Drivers will fill this
in with the appropriate local dma lkey if they support it.
- Fix up the drivers using this flag.
---
drivers/infiniband/hw/amso1100/c2_rnic.c | 2 +-
drivers/infiniband/hw/cxgb3/iwch_provider.c | 3 ++-
drivers/infiniband/hw/nes/nes_hw.c | 2 +-
include/rdma/ib_verbs.h | 3 ++-
4 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/infiniband/hw/amso1100/c2_rnic.c b/drivers/infiniband/hw/amso1100/c2_rnic.c
index b1441ae..dd05c48 100644
--- a/drivers/infiniband/hw/amso1100/c2_rnic.c
+++ b/drivers/infiniband/hw/amso1100/c2_rnic.c
@@ -454,7 +454,7 @@ int __devinit c2_rnic_init(struct c2_dev *c2dev)
(IB_DEVICE_RESIZE_MAX_WR |
IB_DEVICE_CURR_QP_STATE_MOD |
IB_DEVICE_SYS_IMAGE_GUID |
- IB_DEVICE_ZERO_STAG |
+ IB_DEVICE_LOCAL_DMA_LKEY |
IB_DEVICE_MEM_WINDOW);
/* Allocate the qptr_array */
diff --git a/drivers/infiniband/hw/cxgb3/iwch_provider.c b/drivers/infiniband/hw/cxgb3/iwch_provider.c
index 3101e3c..f27dedb 100644
--- a/drivers/infiniband/hw/cxgb3/iwch_provider.c
+++ b/drivers/infiniband/hw/cxgb3/iwch_provider.c
@@ -1254,8 +1254,9 @@ int iwch_register_device(struct iwch_dev *dev)
memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
dev->ibdev.owner = THIS_MODULE;
- dev->device_cap_flags = IB_DEVICE_ZERO_STAG |
+ dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
IB_DEVICE_MEM_WINDOW;
+ dev->ibdev.local_dma_lkey = 0;
if (fw_supports_fastreg(dev))
dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index d3278f1..070b0c7 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -398,7 +398,7 @@ struct nes_adapter *nes_init_adapter(struct nes_device *nesdev, u8 hw_rev) {
nesadapter->base_pd = 1;
nesadapter->device_cap_flags =
- IB_DEVICE_ZERO_STAG | IB_DEVICE_MEM_WINDOW;
+ IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
nesadapter->allocated_qps = (unsigned long *)&(((unsigned char *)nesadapter)
[(sizeof(struct nes_adapter)+(sizeof(unsigned long)-1))&(~(sizeof(unsigned long)-1))]);
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 74c24b9..2155a33 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -91,7 +91,7 @@ enum ib_device_cap_flags {
IB_DEVICE_RC_RNR_NAK_GEN = (1<<12),
IB_DEVICE_SRQ_RESIZE = (1<<13),
IB_DEVICE_N_NOTIFY_CQ = (1<<14),
- IB_DEVICE_ZERO_STAG = (1<<15),
+ IB_DEVICE_LOCAL_DMA_LKEY = (1<<15),
IB_DEVICE_RESERVED = (1<<16), /* old SEND_W_INV */
IB_DEVICE_MEM_WINDOW = (1<<17),
/*
@@ -1096,6 +1096,7 @@ struct ib_device {
__be64 node_guid;
u8 node_type;
u8 phys_port_cnt;
+ u32 local_dma_lkey;
};
struct ib_client {
More information about the general
mailing list