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svcrdma: Use the new parsed chunk list when pulling Read chunks

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As a pre-requisite for handling multiple Read chunks in each Read
list, convert svc_rdma_recv_read_chunk() to use the new parsed Read
chunk list.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever
2020-09-17 13:04:17 -04:00
parent bafe9c27d5
commit d96962e6d0
3 changed files with 111 additions and 71 deletions
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16
net/sunrpc/xprtrdma/svc_rdma_recvfrom.c
View File

@@ -824,7 +824,6 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
struct svcxprt_rdma *rdma_xprt =
container_of(xprt, struct svcxprt_rdma, sc_xprt);
struct svc_rdma_recv_ctxt *ctxt;
__be32 *p;
int ret;
rqstp->rq_xprt_ctxt = NULL;
@@ -857,7 +856,6 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
rqstp->rq_respages = rqstp->rq_pages;
rqstp->rq_next_page = rqstp->rq_respages;
p = (__be32 *)rqstp->rq_arg.head[0].iov_base;
ret = svc_rdma_xdr_decode_req(&rqstp->rq_arg, ctxt);
if (ret < 0)
goto out_err;
@@ -870,9 +868,9 @@ int svc_rdma_recvfrom(struct svc_rqst *rqstp)
svc_rdma_get_inv_rkey(rdma_xprt, ctxt);
p += rpcrdma_fixed_maxsz;
if (*p != xdr_zero)
goto out_readchunk;
if (!pcl_is_empty(&ctxt->rc_read_pcl) ||
!pcl_is_empty(&ctxt->rc_call_pcl))
goto out_readlist;
complete:
rqstp->rq_xprt_ctxt = ctxt;
@@ -880,10 +878,10 @@ complete:
svc_xprt_copy_addrs(rqstp, xprt);
return rqstp->rq_arg.len;
out_readchunk:
ret = svc_rdma_recv_read_chunk(rdma_xprt, rqstp, ctxt, p);
out_readlist:
ret = svc_rdma_process_read_list(rdma_xprt, rqstp, ctxt);
if (ret < 0)
goto out_postfail;
goto out_readfail;
return 0;
out_err:
@@ -891,7 +889,7 @@ out_err:
svc_rdma_recv_ctxt_put(rdma_xprt, ctxt);
return 0;
out_postfail:
out_readfail:
if (ret == -EINVAL)
svc_rdma_send_error(rdma_xprt, ctxt, ret);
svc_rdma_recv_ctxt_put(rdma_xprt, ctxt);