[ewg] RAW_ETH support [PATCH 1/1]

[Vladimir Sokolovsky]

Alekseys Senin wrote:
> Vlad,
> apply this patch. It will add new RAW_ETH enum and used by NES/Intel driver in their code.
> 
> This patch add RAW_ETH QP type to verbs layer.
> 
> Signed-off-by: Aleksey Senin <alekseys at voltaire.com>
> ---

Hi Aleksey,
I understand from Eli that there are issues with this patch.
So, please send the fixed version.

Regards,
Vladimir


>  kernel_patches/fixes/core_0560_raw_eth.patch |   63 ++++++++++++++++++++++++++
>  1 files changed, 63 insertions(+), 0 deletions(-)
>  create mode 100644 kernel_patches/fixes/core_0560_raw_eth.patch
> 
> diff --git a/kernel_patches/fixes/core_0560_raw_eth.patch b/kernel_patches/fixes/core_0560_raw_eth.patch
> new file mode 100644
> index 0000000..2a8b30f
> --- /dev/null
> +++ b/kernel_patches/fixes/core_0560_raw_eth.patch
> @@ -0,0 +1,63 @@
> + Add new RAW_ETY QP type in order to build RAW Ethernet packets
> + over iWARP and RDMAOE protocols.
> +
> +
> +Signed-off-by: Aleksey Senin <alekseys at voltaire.com>
> +---
> + drivers/infiniband/core/verbs.c |   13 +++++++++++--
> + include/rdma/ib_verbs.h         |    1 +
> + 2 files changed, 12 insertions(+), 2 deletions(-)
> +
> +diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
> +index 881850e..bb4dcd5 100644
> +--- a/drivers/infiniband/core/verbs.c
> ++++ b/drivers/infiniband/core/verbs.c
> +@@ -382,6 +382,7 @@ static const struct {
> + 				[IB_QPT_UD]  = (IB_QP_PKEY_INDEX		|
> + 						IB_QP_PORT			|
> + 						IB_QP_QKEY),
> ++				[IB_QPT_RAW_ETH] = IB_QP_PORT,
> + 				[IB_QPT_UC]  = (IB_QP_PKEY_INDEX		|
> + 						IB_QP_PORT			|
> + 						IB_QP_ACCESS_FLAGS),
> +@@ -1004,7 +1005,11 @@ int ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid)
> +
> + 	switch (rdma_node_get_transport(qp->device->node_type)) {
> + 	case RDMA_TRANSPORT_IB:
> +-		if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
> ++		if (qp->qp_type == IB_QPT_RAW_ETH) {
> ++			/* In raw Etherent mgids the 63 msb's should be 0 */
> ++			if (gid->global.subnet_prefix & cpu_to_be64(~1ULL))
> ++				return -EINVAL;
> ++		} else if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
> + 			return -EINVAL;
> + 		break;
> + 	case RDMA_TRANSPORT_IWARP:
> +@@ -1023,7 +1028,11 @@ int ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid)
> +
> + 	switch (rdma_node_get_transport(qp->device->node_type)) {
> + 	case RDMA_TRANSPORT_IB:
> +-		if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
> ++		if (qp->qp_type == IB_QPT_RAW_ETH) {
> ++			/* In raw Etherent mgids the 63 msb's should be 0 */
> ++			if (gid->global.subnet_prefix & cpu_to_be64(~1ULL))
> ++				return -EINVAL;
> ++		} else if (gid->raw[0] != 0xff || qp->qp_type != IB_QPT_UD)
> + 			return -EINVAL;
> + 		break;
> + 	case RDMA_TRANSPORT_IWARP:
> +diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
> +index 3a5a40f..2162253 100644
> +--- a/include/rdma/ib_verbs.h
> ++++ b/include/rdma/ib_verbs.h
> +@@ -571,6 +571,7 @@ enum ib_qp_type {
> + 	IB_QPT_UD,
> + 	IB_QPT_XRC,
> + 	IB_QPT_RAW_IPV6,
> ++	IB_QPT_RAW_ETH,
> + 	IB_QPT_RAW_ETY
> + };
> +
> +--
> +1.6.5.2
> +