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Diffstat (limited to 'drivers/ieee1394/eth1394.h')
-rw-r--r--drivers/ieee1394/eth1394.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/ieee1394/eth1394.h b/drivers/ieee1394/eth1394.h
index ed8f1c4b7fd..a77213cfc48 100644
--- a/drivers/ieee1394/eth1394.h
+++ b/drivers/ieee1394/eth1394.h
@@ -44,6 +44,12 @@
#define ETHER1394_GASP_BUFFERS 16
+/* rawiso buffer size - due to a limitation in rawiso, we must limit each
+ * GASP buffer to be less than PAGE_SIZE. */
+#define ETHER1394_ISO_BUF_SIZE ETHER1394_GASP_BUFFERS * \
+ min((unsigned int)PAGE_SIZE, \
+ 2 * (1U << (priv->host->csr.max_rec + 1)))
+
/* Node set == 64 */
#define NODE_SET (ALL_NODES + 1)