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| author | Chuck Lever <chuck.lever@oracle.com> | 2019-10-04 09:58:20 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2019-10-08 16:01:33 -0400 |
| commit | 832b2cb955437dcfe9b8f08e5f37303c9097fc87 (patch) | |
| tree | ea633f762d89df5b713ff4b90db38a04b62ab943 /net | |
| parent | c4b77edb3f7f58a3241d318f946ed68708776f8b (diff) | |
| download | linux-832b2cb955437dcfe9b8f08e5f37303c9097fc87.tar.gz linux-832b2cb955437dcfe9b8f08e5f37303c9097fc87.tar.bz2 linux-832b2cb955437dcfe9b8f08e5f37303c9097fc87.zip | |
svcrdma: Improve DMA mapping trace points
Capture the total size of Sends, the size of DMA map and the
matching DMA unmap to ensure operation is correct.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_sendto.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_sendto.c b/net/sunrpc/xprtrdma/svc_rdma_sendto.c index 6fdba72f89f4..f3f108090aa4 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_sendto.c +++ b/net/sunrpc/xprtrdma/svc_rdma_sendto.c @@ -233,11 +233,15 @@ void svc_rdma_send_ctxt_put(struct svcxprt_rdma *rdma, /* The first SGE contains the transport header, which * remains mapped until @ctxt is destroyed. */ - for (i = 1; i < ctxt->sc_send_wr.num_sge; i++) + for (i = 1; i < ctxt->sc_send_wr.num_sge; i++) { ib_dma_unmap_page(device, ctxt->sc_sges[i].addr, ctxt->sc_sges[i].length, DMA_TO_DEVICE); + trace_svcrdma_dma_unmap_page(rdma, + ctxt->sc_sges[i].addr, + ctxt->sc_sges[i].length); + } for (i = 0; i < ctxt->sc_page_count; ++i) put_page(ctxt->sc_pages[i]); @@ -490,6 +494,7 @@ static int svc_rdma_dma_map_page(struct svcxprt_rdma *rdma, dma_addr_t dma_addr; dma_addr = ib_dma_map_page(dev, page, offset, len, DMA_TO_DEVICE); + trace_svcrdma_dma_map_page(rdma, dma_addr, len); if (ib_dma_mapping_error(dev, dma_addr)) goto out_maperr; @@ -499,7 +504,6 @@ static int svc_rdma_dma_map_page(struct svcxprt_rdma *rdma, return 0; out_maperr: - trace_svcrdma_dma_map_page(rdma, page); return -EIO; } |