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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/infiniband/hw/hfi1/verbs_txreq.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/verbs_txreq.h')
-rw-r--r-- | drivers/infiniband/hw/hfi1/verbs_txreq.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/verbs_txreq.h b/drivers/infiniband/hw/hfi1/verbs_txreq.h new file mode 100644 index 000000000..2a7e0ae89 --- /dev/null +++ b/drivers/infiniband/hw/hfi1/verbs_txreq.h @@ -0,0 +1,79 @@ +/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */ +/* + * Copyright(c) 2016 - 2018 Intel Corporation. + */ + +#ifndef HFI1_VERBS_TXREQ_H +#define HFI1_VERBS_TXREQ_H + +#include <linux/types.h> +#include <linux/slab.h> + +#include "verbs.h" +#include "sdma_txreq.h" +#include "iowait.h" + +struct verbs_txreq { + struct hfi1_sdma_header phdr; + struct sdma_txreq txreq; + struct rvt_qp *qp; + struct rvt_swqe *wqe; + struct rvt_mregion *mr; + struct rvt_sge_state *ss; + struct sdma_engine *sde; + struct send_context *psc; + u16 hdr_dwords; + u16 s_cur_size; +}; + +struct hfi1_ibdev; +struct verbs_txreq *__get_txreq(struct hfi1_ibdev *dev, + struct rvt_qp *qp); + +#define VERBS_TXREQ_GFP (GFP_ATOMIC | __GFP_NOWARN) +static inline struct verbs_txreq *get_txreq(struct hfi1_ibdev *dev, + struct rvt_qp *qp) + __must_hold(&qp->slock) +{ + struct verbs_txreq *tx; + struct hfi1_qp_priv *priv = qp->priv; + + tx = kmem_cache_alloc(dev->verbs_txreq_cache, VERBS_TXREQ_GFP); + if (unlikely(!tx)) { + /* call slow path to get the lock */ + tx = __get_txreq(dev, qp); + if (!tx) + return tx; + } + tx->qp = qp; + tx->mr = NULL; + tx->sde = priv->s_sde; + tx->psc = priv->s_sendcontext; + /* so that we can test if the sdma descriptors are there */ + tx->txreq.num_desc = 0; + /* Set the header type */ + tx->phdr.hdr.hdr_type = priv->hdr_type; + tx->txreq.flags = 0; + return tx; +} + +static inline struct verbs_txreq *get_waiting_verbs_txreq(struct iowait_work *w) +{ + struct sdma_txreq *stx; + + stx = iowait_get_txhead(w); + if (stx) + return container_of(stx, struct verbs_txreq, txreq); + return NULL; +} + +static inline bool verbs_txreq_queued(struct iowait_work *w) +{ + return iowait_packet_queued(w); +} + +void hfi1_put_txreq(struct verbs_txreq *tx); +int verbs_txreq_init(struct hfi1_ibdev *dev); +void verbs_txreq_exit(struct hfi1_ibdev *dev); + +#endif /* HFI1_VERBS_TXREQ_H */ |