diff options
| author | Xiao Yang <yangx.jy@fujitsu.com> | 2022-12-01 14:39:25 +0000 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-12-01 19:51:09 -0400 |
| commit | abb633cf28049e6a7c37c44f83a8584f7dbded7d (patch) | |
| tree | 78f0598244d98753e0ef39df4a1a2dd4069626c4 | |
| parent | 5c7af6c7938466aa2f3c52057f4dd28b4a1e9e42 (diff) | |
| download | linux-abb633cf28049e6a7c37c44f83a8584f7dbded7d.tar.bz2 | |
RDMA/rxe: Make requester support atomic write on RC service
Make requester process and send an atomic write request on RC service.
Link: https://lore.kernel.org/r/1669905568-62-1-git-send-email-yangx.jy@fujitsu.com
Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_req.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_req.c b/drivers/infiniband/sw/rxe/rxe_req.c index 4d45f508392f..2713e9058922 100644 --- a/drivers/infiniband/sw/rxe/rxe_req.c +++ b/drivers/infiniband/sw/rxe/rxe_req.c @@ -258,6 +258,10 @@ static int next_opcode_rc(struct rxe_qp *qp, u32 opcode, int fits) else return fits ? IB_OPCODE_RC_SEND_ONLY_WITH_INVALIDATE : IB_OPCODE_RC_SEND_FIRST; + + case IB_WR_ATOMIC_WRITE: + return IB_OPCODE_RC_ATOMIC_WRITE; + case IB_WR_REG_MR: case IB_WR_LOCAL_INV: return opcode; @@ -486,6 +490,11 @@ static int finish_packet(struct rxe_qp *qp, struct rxe_av *av, } } + if (pkt->mask & RXE_ATOMIC_WRITE_MASK) { + memcpy(payload_addr(pkt), wqe->dma.atomic_wr, payload); + wqe->dma.resid -= payload; + } + return 0; } @@ -709,13 +718,15 @@ int rxe_requester(void *arg) } mask = rxe_opcode[opcode].mask; - if (unlikely(mask & RXE_READ_OR_ATOMIC_MASK)) { + if (unlikely(mask & (RXE_READ_OR_ATOMIC_MASK | + RXE_ATOMIC_WRITE_MASK))) { if (check_init_depth(qp, wqe)) goto exit; } mtu = get_mtu(qp); - payload = (mask & RXE_WRITE_OR_SEND_MASK) ? wqe->dma.resid : 0; + payload = (mask & (RXE_WRITE_OR_SEND_MASK | RXE_ATOMIC_WRITE_MASK)) ? + wqe->dma.resid : 0; if (payload > mtu) { if (qp_type(qp) == IB_QPT_UD) { /* C10-93.1.1: If the total sum of all the buffer lengths specified for a |