diff options
| author | Long Li <longli@microsoft.com> | 2019-05-14 07:01:29 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-05-15 00:57:43 +0300 |
| commit | 7f46d23e1b14f0827eb19c60eedcc6525ca2e742 (patch) | |
| tree | 94e0a9cfd587ec331066340be7d02830bfd5ab60 /fs/cifs/smbdirect.c | |
| parent | 1d2a4f57cebdab1d496b976a1e6ea998dc9b03c8 (diff) | |
| download | linux-7f46d23e1b14f0827eb19c60eedcc6525ca2e742.tar.xz | |
cifs:smbd Use the correct DMA direction when sending data
When sending data, use the DMA_TO_DEVICE to map buffers. Also log the number
of requests in a compounding request from upper layer.
Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Acked-by: Pavel Shilovsky <pshilov@microsoft.com>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/smbdirect.c')
| -rw-r--r-- | fs/cifs/smbdirect.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c index 251ef1223206..caac37b1de8c 100644 --- a/fs/cifs/smbdirect.c +++ b/fs/cifs/smbdirect.c @@ -903,7 +903,7 @@ static int smbd_create_header(struct smbd_connection *info, request->sge[0].addr = ib_dma_map_single(info->id->device, (void *)packet, header_length, - DMA_BIDIRECTIONAL); + DMA_TO_DEVICE); if (ib_dma_mapping_error(info->id->device, request->sge[0].addr)) { mempool_free(request, info->request_mempool); rc = -EIO; @@ -1005,7 +1005,7 @@ static int smbd_post_send_sgl(struct smbd_connection *info, for_each_sg(sgl, sg, num_sgs, i) { request->sge[i+1].addr = ib_dma_map_page(info->id->device, sg_page(sg), - sg->offset, sg->length, DMA_BIDIRECTIONAL); + sg->offset, sg->length, DMA_TO_DEVICE); if (ib_dma_mapping_error( info->id->device, request->sge[i+1].addr)) { rc = -EIO; @@ -2110,8 +2110,10 @@ int smbd_send(struct TCP_Server_Info *server, goto done; } - rqst_idx = 0; + log_write(INFO, "num_rqst=%d total length=%u\n", + num_rqst, remaining_data_length); + rqst_idx = 0; next_rqst: rqst = &rqst_array[rqst_idx]; iov = rqst->rq_iov; |