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Commit ebaaee25 authored by Noa Osherovich's avatar Noa Osherovich Committed by Doug Ledford
Browse files

IB/core: Expose vlan offloads capabilities 



Expose raw packet capabilities in the core layer to enable a device
to report it.
Two existing capabilities, scatter FCS and IP CSUM were added to this
field for a better user experience by exposing the raw packet caps
from one location.
This field will serve also for future capabilities for raw packet QP.

A new capability was introduced - cvlan stripping, which is the
device's ability to remove cvlan tag from an incoming packet and
report it in the matching work completion.

Signed-off-by: default avatarNoa Osherovich <noaos@mellanox.com>
Reviewed-by: default avatarMaor Gottlieb <maorg@mellanox.com>
Reviewed-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leon@kernel.org>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 23a6964e

include/rdma/ib_verbs.h

+15 −0
Original line number Diff line number Diff line
@@ -207,6 +207,7 @@ enum ib_device_cap_flags { 
	IB_DEVICE_MEM_WINDOW_TYPE_2A		= (1 << 23),

	IB_DEVICE_MEM_WINDOW_TYPE_2B		= (1 << 24),

	IB_DEVICE_RC_IP_CSUM			= (1 << 25),

	/* Deprecated. Please use IB_RAW_PACKET_CAP_IP_CSUM. */

	IB_DEVICE_RAW_IP_CSUM			= (1 << 26),

	/*

	 * Devices should set IB_DEVICE_CROSS_CHANNEL if they
@@ -220,6 +221,7 @@ enum ib_device_cap_flags { 
	IB_DEVICE_ON_DEMAND_PAGING		= (1ULL << 31),

	IB_DEVICE_SG_GAPS_REG			= (1ULL << 32),

	IB_DEVICE_VIRTUAL_FUNCTION		= (1ULL << 33),

	/* Deprecated. Please use IB_RAW_PACKET_CAP_SCATTER_FCS. */

	IB_DEVICE_RAW_SCATTER_FCS		= (1ULL << 34),

};
@@ -330,6 +332,7 @@ struct ib_device_attr { 
	uint64_t		hca_core_clock; /* in KHZ */

	struct ib_rss_caps	rss_caps;

	u32			max_wq_type_rq;

	u32			raw_packet_caps; /* Use ib_raw_packet_caps enum */

};



enum ib_mtu {
@@ -1456,6 +1459,18 @@ struct ib_srq { 
	} ext;

};



enum ib_raw_packet_caps {

	/* Strip cvlan from incoming packet and report it in the matching work

	 * completion is supported.

	 */

	IB_RAW_PACKET_CAP_CVLAN_STRIPPING	= (1 << 0),

	/* Scatter FCS field of an incoming packet to host memory is supported.

	 */

	IB_RAW_PACKET_CAP_SCATTER_FCS		= (1 << 1),

	/* Checksum offloads are supported (for both send and receive). */

	IB_RAW_PACKET_CAP_IP_CSUM		= (1 << 2),

};



enum ib_wq_type {

	IB_WQT_RQ

};