From 02e9a31c897d17981508ceaac4430b93ff56ffc7 Mon Sep 17 00:00:00 2001 From: Li Zhijian Date: Tue, 6 Dec 2022 21:01:56 +0800 Subject: RDMA/rxe: Extend rxe packet format to support flush Extend rxe opcode tables, headers, helper and constants to support flush operations. Refer to the IBA A19.4.1 for more FETH definition details Link: https://lore.kernel.org/r/20221206130201.30986-6-lizhijian@fujitsu.com Reviewed-by: Zhu Yanjun Signed-off-by: Li Zhijian Signed-off-by: Jason Gunthorpe --- drivers/infiniband/sw/rxe/rxe_hdr.h | 47 ++++++++++++++++++++++++++++++++++ drivers/infiniband/sw/rxe/rxe_opcode.c | 17 ++++++++++++ drivers/infiniband/sw/rxe/rxe_opcode.h | 14 ++++++---- 3 files changed, 73 insertions(+), 5 deletions(-) (limited to 'drivers/infiniband') diff --git a/drivers/infiniband/sw/rxe/rxe_hdr.h b/drivers/infiniband/sw/rxe/rxe_hdr.h index 804594b76040..46f82b27fcd2 100644 --- a/drivers/infiniband/sw/rxe/rxe_hdr.h +++ b/drivers/infiniband/sw/rxe/rxe_hdr.h @@ -607,6 +607,52 @@ static inline void reth_set_len(struct rxe_pkt_info *pkt, u32 len) rxe_opcode[pkt->opcode].offset[RXE_RETH], len); } +/****************************************************************************** + * FLUSH Extended Transport Header + ******************************************************************************/ + +struct rxe_feth { + __be32 bits; +}; + +#define FETH_PLT_MASK (0x0000000f) /* bits 3-0 */ +#define FETH_SEL_MASK (0x00000030) /* bits 5-4 */ +#define FETH_SEL_SHIFT (4U) + +static inline u32 __feth_plt(void *arg) +{ + struct rxe_feth *feth = arg; + + return be32_to_cpu(feth->bits) & FETH_PLT_MASK; +} + +static inline u32 __feth_sel(void *arg) +{ + struct rxe_feth *feth = arg; + + return (be32_to_cpu(feth->bits) & FETH_SEL_MASK) >> FETH_SEL_SHIFT; +} + +static inline u32 feth_plt(struct rxe_pkt_info *pkt) +{ + return __feth_plt(pkt->hdr + rxe_opcode[pkt->opcode].offset[RXE_FETH]); +} + +static inline u32 feth_sel(struct rxe_pkt_info *pkt) +{ + return __feth_sel(pkt->hdr + rxe_opcode[pkt->opcode].offset[RXE_FETH]); +} + +static inline void feth_init(struct rxe_pkt_info *pkt, u8 type, u8 level) +{ + struct rxe_feth *feth = (struct rxe_feth *) + (pkt->hdr + rxe_opcode[pkt->opcode].offset[RXE_FETH]); + u32 bits = ((level << FETH_SEL_SHIFT) & FETH_SEL_MASK) | + (type & FETH_PLT_MASK); + + feth->bits = cpu_to_be32(bits); +} + /****************************************************************************** * Atomic Extended Transport Header ******************************************************************************/ @@ -909,6 +955,7 @@ enum rxe_hdr_length { RXE_ATMETH_BYTES = sizeof(struct rxe_atmeth), RXE_IETH_BYTES = sizeof(struct rxe_ieth), RXE_RDETH_BYTES = sizeof(struct rxe_rdeth), + RXE_FETH_BYTES = sizeof(struct rxe_feth), }; static inline size_t header_size(struct rxe_pkt_info *pkt) diff --git a/drivers/infiniband/sw/rxe/rxe_opcode.c b/drivers/infiniband/sw/rxe/rxe_opcode.c index fb196029048e..5c0d5c6ffda4 100644 --- a/drivers/infiniband/sw/rxe/rxe_opcode.c +++ b/drivers/infiniband/sw/rxe/rxe_opcode.c @@ -101,6 +101,12 @@ struct rxe_wr_opcode_info rxe_wr_opcode_info[] = { [IB_QPT_UC] = WR_LOCAL_OP_MASK, }, }, + [IB_WR_FLUSH] = { + .name = "IB_WR_FLUSH", + .mask = { + [IB_QPT_RC] = WR_FLUSH_MASK, + }, + }, [IB_WR_ATOMIC_WRITE] = { .name = "IB_WR_ATOMIC_WRITE", .mask = { @@ -384,6 +390,17 @@ struct rxe_opcode_info rxe_opcode[RXE_NUM_OPCODE] = { RXE_IETH_BYTES, } }, + [IB_OPCODE_RC_FLUSH] = { + .name = "IB_OPCODE_RC_FLUSH", + .mask = RXE_FETH_MASK | RXE_RETH_MASK | RXE_FLUSH_MASK | + RXE_START_MASK | RXE_END_MASK | RXE_REQ_MASK, + .length = RXE_BTH_BYTES + RXE_FETH_BYTES + RXE_RETH_BYTES, + .offset = { + [RXE_BTH] = 0, + [RXE_FETH] = RXE_BTH_BYTES, + [RXE_RETH] = RXE_BTH_BYTES + RXE_FETH_BYTES, + } + }, [IB_OPCODE_RC_ATOMIC_WRITE] = { .name = "IB_OPCODE_RC_ATOMIC_WRITE", .mask = RXE_RETH_MASK | RXE_PAYLOAD_MASK | RXE_REQ_MASK | diff --git a/drivers/infiniband/sw/rxe/rxe_opcode.h b/drivers/infiniband/sw/rxe/rxe_opcode.h index a470e9b0b884..cea4e0a63919 100644 --- a/drivers/infiniband/sw/rxe/rxe_opcode.h +++ b/drivers/infiniband/sw/rxe/rxe_opcode.h @@ -20,6 +20,7 @@ enum rxe_wr_mask { WR_READ_MASK = BIT(3), WR_WRITE_MASK = BIT(4), WR_LOCAL_OP_MASK = BIT(5), + WR_FLUSH_MASK = BIT(6), WR_ATOMIC_WRITE_MASK = BIT(7), WR_READ_OR_WRITE_MASK = WR_READ_MASK | WR_WRITE_MASK, @@ -48,6 +49,7 @@ enum rxe_hdr_type { RXE_RDETH, RXE_DETH, RXE_IMMDT, + RXE_FETH, RXE_PAYLOAD, NUM_HDR_TYPES }; @@ -64,6 +66,7 @@ enum rxe_hdr_mask { RXE_IETH_MASK = BIT(RXE_IETH), RXE_RDETH_MASK = BIT(RXE_RDETH), RXE_DETH_MASK = BIT(RXE_DETH), + RXE_FETH_MASK = BIT(RXE_FETH), RXE_PAYLOAD_MASK = BIT(RXE_PAYLOAD), RXE_REQ_MASK = BIT(NUM_HDR_TYPES + 0), @@ -72,13 +75,14 @@ enum rxe_hdr_mask { RXE_WRITE_MASK = BIT(NUM_HDR_TYPES + 3), RXE_READ_MASK = BIT(NUM_HDR_TYPES + 4), RXE_ATOMIC_MASK = BIT(NUM_HDR_TYPES + 5), + RXE_FLUSH_MASK = BIT(NUM_HDR_TYPES + 6), - RXE_RWR_MASK = BIT(NUM_HDR_TYPES + 6), - RXE_COMP_MASK = BIT(NUM_HDR_TYPES + 7), + RXE_RWR_MASK = BIT(NUM_HDR_TYPES + 7), + RXE_COMP_MASK = BIT(NUM_HDR_TYPES + 8), - RXE_START_MASK = BIT(NUM_HDR_TYPES + 8), - RXE_MIDDLE_MASK = BIT(NUM_HDR_TYPES + 9), - RXE_END_MASK = BIT(NUM_HDR_TYPES + 10), + RXE_START_MASK = BIT(NUM_HDR_TYPES + 9), + RXE_MIDDLE_MASK = BIT(NUM_HDR_TYPES + 10), + RXE_END_MASK = BIT(NUM_HDR_TYPES + 11), RXE_LOOPBACK_MASK = BIT(NUM_HDR_TYPES + 12), -- cgit v1.2.3