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authorRoland Dreier <rolandd@cisco.com>2005-10-14 14:00:58 -0700
committerRoland Dreier <rolandd@cisco.com>2005-10-17 15:20:30 -0700
commit883a99c7024c5763d6d4f22d9239c133893e8d74 (patch)
tree659a7982a51d0ba187dac826a5b1e5ef319692fd
parent56c202d6e4f542468fe79b8a735cf128898b87fb (diff)
[IB] uverbs: Add a mask of device methods allowed for userspace
Give each device a uverbs_cmd_mask, so that a low-level driver can control which methods may be called on behalf of userspace. Signed-off-by: Roland Dreier <rolandd@cisco.com>
-rw-r--r--drivers/infiniband/core/uverbs_main.c3
-rw-r--r--drivers/infiniband/hw/mthca/mthca_provider.c20
-rw-r--r--include/rdma/ib_verbs.h1
3 files changed, 23 insertions, 1 deletions
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 3a887006b25..6a5e5084db7 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -514,7 +514,8 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
if (hdr.command < 0 ||
hdr.command >= ARRAY_SIZE(uverbs_cmd_table) ||
- !uverbs_cmd_table[hdr.command])
+ !uverbs_cmd_table[hdr.command] ||
+ !(file->device->ib_dev->uverbs_cmd_mask & (1ull << hdr.command)))
return -EINVAL;
if (!file->ucontext &&
diff --git a/drivers/infiniband/hw/mthca/mthca_provider.c b/drivers/infiniband/hw/mthca/mthca_provider.c
index 46864d18827..9e911a1ea41 100644
--- a/drivers/infiniband/hw/mthca/mthca_provider.c
+++ b/drivers/infiniband/hw/mthca/mthca_provider.c
@@ -37,6 +37,7 @@
*/
#include <rdma/ib_smi.h>
+#include <rdma/ib_user_verbs.h>
#include <linux/mm.h>
#include "mthca_dev.h"
@@ -1077,6 +1078,25 @@ int mthca_register_device(struct mthca_dev *dev)
dev->ib_dev.owner = THIS_MODULE;
dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION;
+ dev->ib_dev.uverbs_cmd_mask =
+ (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
+ (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
+ (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
+ (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
+ (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
+ (1ull << IB_USER_VERBS_CMD_REG_MR) |
+ (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
+ (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
+ (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
+ (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
+ (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
+ (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
+ (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
+ (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) |
+ (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) |
+ (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) |
+ (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) |
+ (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ);
dev->ib_dev.node_type = IB_NODE_CA;
dev->ib_dev.phys_port_cnt = dev->limits.num_ports;
dev->ib_dev.dma_device = &dev->pdev->dev;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index d13f25a7819..a5a963cb567 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -951,6 +951,7 @@ struct ib_device {
IB_DEV_UNREGISTERED
} reg_state;
+ u64 uverbs_cmd_mask;
int uverbs_abi_ver;
u8 node_type;