cxgb3 - sge page management
Streamline sge page management.
Fix dma mappings when buffers are recycled.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/cxgb3/adapter.h b/drivers/net/cxgb3/adapter.h
index 80c3d8f..ab72563 100644
--- a/drivers/net/cxgb3/adapter.h
+++ b/drivers/net/cxgb3/adapter.h
@@ -71,27 +71,29 @@
QUEUES_BOUND = (1 << 3),
};
+struct fl_pg_chunk {
+ struct page *page;
+ void *va;
+ unsigned int offset;
+};
+
struct rx_desc;
struct rx_sw_desc;
-struct sge_fl_page {
- struct skb_frag_struct frag;
- unsigned char *va;
-};
-
-struct sge_fl { /* SGE per free-buffer list state */
- unsigned int buf_size; /* size of each Rx buffer */
- unsigned int credits; /* # of available Rx buffers */
- unsigned int size; /* capacity of free list */
- unsigned int cidx; /* consumer index */
- unsigned int pidx; /* producer index */
- unsigned int gen; /* free list generation */
- unsigned int cntxt_id; /* SGE context id for the free list */
- struct sge_fl_page page;
- struct rx_desc *desc; /* address of HW Rx descriptor ring */
- struct rx_sw_desc *sdesc; /* address of SW Rx descriptor ring */
- dma_addr_t phys_addr; /* physical address of HW ring start */
- unsigned long empty; /* # of times queue ran out of buffers */
+struct sge_fl { /* SGE per free-buffer list state */
+ unsigned int buf_size; /* size of each Rx buffer */
+ unsigned int credits; /* # of available Rx buffers */
+ unsigned int size; /* capacity of free list */
+ unsigned int cidx; /* consumer index */
+ unsigned int pidx; /* producer index */
+ unsigned int gen; /* free list generation */
+ struct fl_pg_chunk pg_chunk;/* page chunk cache */
+ unsigned int use_pages; /* whether FL uses pages or sk_buffs */
+ struct rx_desc *desc; /* address of HW Rx descriptor ring */
+ struct rx_sw_desc *sdesc; /* address of SW Rx descriptor ring */
+ dma_addr_t phys_addr; /* physical address of HW ring start */
+ unsigned int cntxt_id; /* SGE context id for the free list */
+ unsigned long empty; /* # of times queue ran out of buffers */
unsigned long alloc_failed; /* # of times buffer allocation failed */
};