diff options
| author | Juergen Gross <jgross@suse.com> | 2023-03-27 10:36:45 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-03-28 14:16:40 +0200 |
| commit | 05310f31ca74673a96567fb14637b7d5d6c82ea5 (patch) | |
| tree | fd4cdc44223e2d06e2a300f04c5d03451ab358e0 /drivers/net/xen-netback/common.h | |
| parent | f22c993f31fa9615df46e49cd768b713d39a852f (diff) | |
xen/netback: don't do grant copy across page boundary
Fix xenvif_get_requests() not to do grant copy operations across local
page boundaries. This requires to double the maximum number of copy
operations per queue, as each copy could now be split into 2.
Make sure that struct xenvif_tx_cb doesn't grow too large.
Cc: stable@vger.kernel.org
Fixes: ad7f402ae4f4 ("xen/netback: Ensure protocol headers don't fall in the non-linear area")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/xen-netback/common.h')
| -rw-r--r-- | drivers/net/xen-netback/common.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index 3dbfc8a6924e..1fcbd83f7ff2 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -166,7 +166,7 @@ struct xenvif_queue { /* Per-queue data for xenvif */ struct pending_tx_info pending_tx_info[MAX_PENDING_REQS]; grant_handle_t grant_tx_handle[MAX_PENDING_REQS]; - struct gnttab_copy tx_copy_ops[MAX_PENDING_REQS]; + struct gnttab_copy tx_copy_ops[2 * MAX_PENDING_REQS]; struct gnttab_map_grant_ref tx_map_ops[MAX_PENDING_REQS]; struct gnttab_unmap_grant_ref tx_unmap_ops[MAX_PENDING_REQS]; /* passed to gnttab_[un]map_refs with pages under (un)mapping */ |