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providers/mana: Add dma-buf support #1557

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providers/mana: Add dma-buf support #1557

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24 changes: 24 additions & 0 deletions providers/mana/mana.c
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Original file line number Diff line number Diff line change
Expand Up @@ -158,6 +158,29 @@ int mana_dealloc_pd(struct ibv_pd *ibpd)
return 0;
}

struct ibv_mr *mana_reg_dmabuf_mr(struct ibv_pd *pd, uint64_t offset,
size_t length, uint64_t iova, int fd,
int access)
{
struct verbs_mr *vmr;
int ret;

vmr = calloc(1, sizeof(*vmr));
if (!vmr)
return NULL;

ret = ibv_cmd_reg_dmabuf_mr(pd, offset, length, iova, fd, access, vmr, NULL);
if (ret) {
verbs_err(verbs_get_ctx(pd->context),
"Failed to register dma-buf MR\n");
errno = ret;
free(vmr);
return NULL;
}

return &vmr->ibv_mr;
}

struct ibv_mr *mana_reg_mr(struct ibv_pd *pd, void *addr, size_t length,
uint64_t hca_va, int access)
{
Expand Down Expand Up @@ -236,6 +259,7 @@ static const struct verbs_context_ops mana_ctx_ops = {
.post_send = mana_post_send,
.query_device_ex = mana_query_device_ex,
.query_port = mana_query_port,
.reg_dmabuf_mr = mana_reg_dmabuf_mr,
.reg_mr = mana_reg_mr,
.req_notify_cq = mana_arm_cq,
};
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4 changes: 4 additions & 0 deletions providers/mana/mana.h
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Original file line number Diff line number Diff line change
Expand Up @@ -197,6 +197,10 @@ mana_alloc_parent_domain(struct ibv_context *context,

int mana_dealloc_pd(struct ibv_pd *pd);

struct ibv_mr *mana_reg_dmabuf_mr(struct ibv_pd *pd, uint64_t offset,
size_t length, uint64_t iova, int fd,
int access);

struct ibv_mr *mana_reg_mr(struct ibv_pd *pd, void *addr, size_t length,
uint64_t hca_va, int access);

Expand Down