Changeset 59b3095 in mainline for uspace/drv/nic/rtl8169/driver.h

Timestamp:

2014-06-02T20:53:10Z (10 years ago)

Author:

Agnieszka Tabaka <nufcia@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

be971233

Parents:

0764cc8a

Message:

Implemented DMA buffers allocation and frame sending mechanism. Buffers reclaiming is not implemented yet.

File:

• uspace/drv/nic/rtl8169/driver.h (modified) (3 diffs)

uspace/drv/nic/rtl8169/driver.h

@@ -40 +40 @@
 #define TX_BUFFERS_COUNT        16
 #define RX_BUFFERS_COUNT        16
+#define BUFFER_SIZE             2048
 
 #define TX_RING_SIZE            (sizeof(rtl8169_descr_t) * TX_BUFFERS_COUNT)
 #define RX_RING_SIZE            (sizeof(rtl8169_descr_t) * RX_BUFFERS_COUNT)
+#define TX_BUFFERS_SIZE         (BUFFER_SIZE * TX_BUFFERS_COUNT)
+#define RX_BUFFERS_SIZE         (BUFFER_SIZE * RX_BUFFERS_COUNT)
 
 /** RTL8139 device data */
@@ -56 +59 @@
         /** TX ring */
         uintptr_t tx_ring_phys;
-        void *tx_ring_virt;
+        rtl8169_descr_t *tx_ring;
+        unsigned int tx_head;
+        unsigned int tx_tail;
         /** RX ring */
         uintptr_t rx_ring_phys;
-        void *rx_ring_virt;
+        rtl8169_descr_t *rx_ring;
+        unsigned int rx_head;
+        unsigned int rx_tail;
         /** TX buffers */
         uintptr_t tx_buff_phys;
-        void *tx_buff_virt;
+        void *tx_buff;
         /** RX buffers */
         uintptr_t rx_buff_phys;
@@ -76 +83 @@
         size_t tx_used;
 
-        /** Buffer for receiving frames */
-        uintptr_t rx_buff_phys;
-        void *rx_buff_virt;
-
         /** Lock for receiver */
         fibril_mutex_t rx_lock;