extern void svc_rdma_unmap_dma(struct svc_rdma_op_ctxt *ctxt);
extern struct svc_rdma_req_map *svc_rdma_get_req_map(void);
extern void svc_rdma_put_req_map(struct svc_rdma_req_map *);
-extern int svc_rdma_fastreg(struct svcxprt_rdma *, struct svc_rdma_fastreg_mr *);
extern struct svc_rdma_fastreg_mr *svc_rdma_get_frmr(struct svcxprt_rdma *);
extern void svc_rdma_put_frmr(struct svcxprt_rdma *,
struct svc_rdma_fastreg_mr *);
return 1;
}
-/*
- * Attempt to register the kvec representing the RPC memory with the
- * device.
- *
- * Returns:
- * NULL : The device does not support fastreg or there were no more
- * fastreg mr.
- * frmr : The kvec register request was successfully posted.
- * <0 : An error was encountered attempting to register the kvec.
- */
-int svc_rdma_fastreg(struct svcxprt_rdma *xprt,
- struct svc_rdma_fastreg_mr *frmr)
-{
- struct ib_send_wr fastreg_wr;
- u8 key;
-
- /* Bump the key */
- key = (u8)(frmr->mr->lkey & 0x000000FF);
- ib_update_fast_reg_key(frmr->mr, ++key);
-
- /* Prepare FASTREG WR */
- memset(&fastreg_wr, 0, sizeof fastreg_wr);
- fastreg_wr.opcode = IB_WR_FAST_REG_MR;
- fastreg_wr.send_flags = IB_SEND_SIGNALED;
- fastreg_wr.wr.fast_reg.iova_start = (unsigned long)frmr->kva;
- fastreg_wr.wr.fast_reg.page_list = frmr->page_list;
- fastreg_wr.wr.fast_reg.page_list_len = frmr->page_list_len;
- fastreg_wr.wr.fast_reg.page_shift = PAGE_SHIFT;
- fastreg_wr.wr.fast_reg.length = frmr->map_len;
- fastreg_wr.wr.fast_reg.access_flags = frmr->access_flags;
- fastreg_wr.wr.fast_reg.rkey = frmr->mr->lkey;
- return svc_rdma_send(xprt, &fastreg_wr);
-}
-
int svc_rdma_send(struct svcxprt_rdma *xprt, struct ib_send_wr *wr)
{
struct ib_send_wr *bad_wr, *n_wr;