[PATCH V1 1/4] IB/core: add RAW Packet QP type
From: Or Gerlitz <hidden>
Date: 2012-03-01 10:17:51
Subsystem:
infiniband subsystem, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
Applications that use this qp type should build the whole packet, including L2 headers when sending. On the receive side, the HW isn't expected to strip any headers. The new qp type designated usage is from user-space in Ethernet environments, e.g by applications that do TCP/IP offloading. Only processes with the NET_RAW capability may open such qp. The name raw packet was selected to resemble the similarity to AF_PACKET / SOL_RAW sockets. Signed-off-by: Or Gerlitz <ogerlitz-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org> --- changes from V0: removed spaces at ib_verbs.h that went in by mistake drivers/infiniband/core/uverbs_cmd.c | 3 +++ drivers/infiniband/core/verbs.c | 1 + include/rdma/ib_verbs.h | 2 +- 3 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 4d27e4c..7d801e6 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c@@ -1399,6 +1399,9 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file, if (copy_from_user(&cmd, buf, sizeof cmd)) return -EFAULT; + if (cmd.qp_type == IB_QPT_RAW_PACKET && !capable(CAP_NET_RAW)) + return -EPERM; + INIT_UDATA(&udata, buf + sizeof cmd, (unsigned long) cmd.response + sizeof resp, in_len - sizeof cmd, out_len - sizeof resp);
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 575b780..140f9a5 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c@@ -479,6 +479,7 @@ static const struct { [IB_QPT_UD] = (IB_QP_PKEY_INDEX | IB_QP_PORT | IB_QP_QKEY), + [IB_QPT_RAW_PACKET] = IB_QP_PORT, [IB_QPT_UC] = (IB_QP_PKEY_INDEX | IB_QP_PORT | IB_QP_ACCESS_FLAGS),
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index c3cca5a..a3fa323 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h@@ -605,7 +605,7 @@ enum ib_qp_type { IB_QPT_UD, IB_QPT_RAW_IPV6, IB_QPT_RAW_ETHERTYPE, - /* Save 8 for RAW_PACKET */ + IB_QPT_RAW_PACKET = 8, IB_QPT_XRC_INI = 9, IB_QPT_XRC_TGT, IB_QPT_MAX
--
1.7.1
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