---
c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h
b/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h
index 0bc749f..83d5c9c 100644
--- a/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h
+++ b/c/src/lib/libbsp/sparc/shared/include/grspw_pkt.h
@@ -118,14 +118,14 @@ extern int grspw_work_task_priority;
* type (RX/TX). See XXPKT_FLAG_* options above.
*/
struct grspw_pkt {
- struct grspw_pkt *next;
- unsigned int pkt_id; /* User assigned ID */
- unsigned short flags; /* RX/TX Options */
+ struct grspw_pkt *next; /* Next packet in list. NULL if last packet */
+ unsigned int pkt_id; /* User assigned ID (not touched by driver) */
+ unsigned short flags; /* RX/TX Options and status */
unsigned char reserved; /* Reserved, must be zero */
- unsigned char hlen; /* Length of Header Buffer */
+ unsigned char hlen; /* Length of Header Buffer (only TX) */
unsigned int dlen; /* Length of Data Buffer */
void *data; /* 4-byte or byte aligned depends on HW */
- void *hdr; /* 4-byte or byte aligned depends on HW */
+ void *hdr; /* 4-byte or byte aligned depends on HW (only TX) */
};
/* GRSPW SpaceWire Packet List */
@@ -226,7 +226,6 @@ struct grspw_core_stats {
#define LINKSTS_EE 0x100 /* Early EOP/EEP */
#define LINKSTS_MASK 0x1de
-
/* grspw_tc_ctrl() options */
#define TCOPTS_EN_RXIRQ 0x0001 /* Tick-Out IRQ */
#define TCOPTS_EN_TX 0x0004
@@ -264,8 +263,7 @@ struct grspw_core_stats {
#define DMAFLAG_MASK (DMAFLAG_NO_SPILL|DMAFLAG_STRIP_ADR|DMAFLAG_STRIP_PID)
struct grspw_dma_config {
- int flags;
-
+ int flags; /* DMA config flags, see DMAFLAG_* options */
int rxmaxlen; /* RX Max Packet Length */
int rx_irq_en_cnt; /* Enable RX IRQ every cnt descriptors */
int tx_irq_en_cnt; /* Enable TX IRQ every cnt descriptors */
--
2.7.4
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