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Commit 0134f16b authored by Jack Morgenstein's avatar Jack Morgenstein Committed by Roland Dreier
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IB/core: Add reserved values to enums for low-level driver use 



Continue the approach taken by commit d2b57063 ("IB/core: Reserve
bits in enum ib_qp_create_flags for low-level driver use") and add
reserved entries to the ib_qp_type and ib_wr_opcode enums.  Low-level
drivers can then define macros to use these reserved values, giving
proper names to the macros for readability.  Also add a range of
reserved flags to enum ib_send_flags.

The mlx5 IB driver uses the new additions.

Signed-off-by: default avatarJack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: default avatarRoland Dreier <roland@purestorage.com>
parent fedaf4ff

include/rdma/ib_verbs.h

+33 −2
Original line number Diff line number Diff line
@@ -610,7 +610,21 @@ enum ib_qp_type { 
	IB_QPT_RAW_PACKET = 8,

	IB_QPT_XRC_INI = 9,

	IB_QPT_XRC_TGT,

	IB_QPT_MAX

	IB_QPT_MAX,

	/* Reserve a range for qp types internal to the low level driver.

	 * These qp types will not be visible at the IB core layer, so the

	 * IB_QPT_MAX usages should not be affected in the core layer

	 */

	IB_QPT_RESERVED1 = 0x1000,

	IB_QPT_RESERVED2,

	IB_QPT_RESERVED3,

	IB_QPT_RESERVED4,

	IB_QPT_RESERVED5,

	IB_QPT_RESERVED6,

	IB_QPT_RESERVED7,

	IB_QPT_RESERVED8,

	IB_QPT_RESERVED9,

	IB_QPT_RESERVED10,

};



enum ib_qp_create_flags {
@@ -766,6 +780,19 @@ enum ib_wr_opcode { 
	IB_WR_MASKED_ATOMIC_CMP_AND_SWP,

	IB_WR_MASKED_ATOMIC_FETCH_AND_ADD,

	IB_WR_BIND_MW,

	/* reserve values for low level drivers' internal use.

	 * These values will not be used at all in the ib core layer.

	 */

	IB_WR_RESERVED1 = 0xf0,

	IB_WR_RESERVED2,

	IB_WR_RESERVED3,

	IB_WR_RESERVED4,

	IB_WR_RESERVED5,

	IB_WR_RESERVED6,

	IB_WR_RESERVED7,

	IB_WR_RESERVED8,

	IB_WR_RESERVED9,

	IB_WR_RESERVED10,

};



enum ib_send_flags {
@@ -773,7 +800,11 @@ enum ib_send_flags { 
	IB_SEND_SIGNALED	= (1<<1),

	IB_SEND_SOLICITED	= (1<<2),

	IB_SEND_INLINE		= (1<<3),

	IB_SEND_IP_CSUM		= (1<<4)

	IB_SEND_IP_CSUM		= (1<<4),



	/* reserve bits 26-31 for low level drivers' internal use */

	IB_SEND_RESERVED_START	= (1 << 26),

	IB_SEND_RESERVED_END	= (1 << 31),

};



struct ib_sge {