Staging: sxg: Add Jumbo frames support to Sahara SXG Driver

[pandora-kernel.git] / drivers / staging / sxg / sxghif.h

diff --git a/drivers/staging/sxg/sxghif.h b/drivers/staging/sxg/sxghif.h
index 3675a1b..ae51779 100644 (file)
--- a/drivers/staging/sxg/sxghif.h
+++ b/drivers/staging/sxg/sxghif.h
@@ -418,6 +418,7 @@ struct sxg_event_ring {
 #define SXG_XMT_RING_SIZE      128             /* Start with 128 */
 #define SXG_RCV_RING_SIZE      128             /* Start with 128 */
 #define SXG_MAX_ENTRIES     4096
+#define SXG_JUMBO_RCV_RING_SIZE       32
 
 /* Structure and macros to manage a ring */
 struct sxg_ring_info {
@@ -713,6 +714,11 @@ enum sxg_buffer_type {
 /* Minimum amount and when to get more */
 #define SXG_MIN_RCV_DATA_BUFFERS       4096
 #define SXG_MAX_RCV_BLOCKS             256     /* = 32k receive buffers */
+/* Amount to give to the card in case of jumbo frames */
+#define SXG_JUMBO_RCV_DATA_BUFFERS             2048
+/* Initial pool of buffers in case of jumbo buffers */
+#define SXG_INITIAL_JUMBO_RCV_DATA_BUFFERS     4096
+#define SXG_MIN_JUMBO_RCV_DATA_BUFFERS         1024
 
 /* Receive buffer header */
 struct sxg_rcv_data_buffer_hdr {
@@ -874,10 +880,8 @@ extern struct sxg_sgl_pool_properties SxgSglPoolProperties[];
  * We currently workaround this issue by allocating SGL buffers
  * in 64k blocks and skipping over buffers that straddle the boundary.
  */
-#define SXG_INVALID_SGL(_SxgSgl)                                       \
-       (((_SxgSgl)->PhysicalAddress.LowPart & 0xFFFF0000) !=           \
-        (((_SxgSgl)->PhysicalAddress.LowPart +                         \
-          SXG_SGL_SIZE((_SxgSgl)->Pool)) & 0xFFFF0000))
+#define SXG_INVALID_SGL(phys_addr,len) \
+       (((phys_addr >> 16) != ( (phys_addr + len) >> 16 )))
 
 /*
  * Allocate SGLs in blocks so we can skip over invalid entries.