servers/lwip/driver.h

http://www.minix3.org/ · C Header · 56 lines · 42 code · 10 blank · 4 comment · 0 complexity · 8de49af2746c8c1e9585ae5913e4327f MD5 · raw file 

    

  1. #ifndef __LWIP_DRIVER_H_
    2. 

  2. #define __LWIP_DRIVER_H_
    3. 

  3. 

  4. #include <minix/endpoint.h>
    5. 

  5. #include <minix/ds.h>
    6. 

  6. 

  7. #include <lwip/pbuf.h>
    8. 

  8. 

  9. #define NIC_NAME_LEN	6
    10. 

  10. #define DRV_NAME_LEN	DS_MAX_KEYLEN
    11. 

  11. 

  12. #define TX_IOVEC_NUM	16 /* something the drivers assume */
    13. 

  13. 

  14. struct packet_q {
    15. 

  15. 	struct packet_q *	next;
    16. 

  16. 	unsigned		buf_len;
    17. 

  17. 	char			buf[];
    18. 

  18. };
    19. 

  19. 

  20. #define DRV_IDLE	0
    21. 

  21. #define DRV_SENDING	1
    22. 

  22. #define DRV_RECEIVING	2
    23. 

  23. 

  24. struct nic {
    25. 

  25. 	unsigned		flags;
    26. 

  26. 	char			name[NIC_NAME_LEN];
    27. 

  27. 	char			drv_name[DRV_NAME_LEN];
    28. 

  28. 	endpoint_t		drv_ep;
    29. 

  29. 	int			is_default;
    30. 

  30. 	int			state;
    31. 

  31. 	cp_grant_id_t		rx_iogrant;
    32. 

  32. 	iovec_s_t		rx_iovec[1];
    33. 

  33. 	struct pbuf *		rx_pbuf;
    34. 

  34. 	cp_grant_id_t		tx_iogrant;
    35. 

  35. 	iovec_s_t		tx_iovec[TX_IOVEC_NUM];
    36. 

  36. 	struct packet_q	*	tx_head;
    37. 

  37. 	struct packet_q	*	tx_tail;
    38. 

  38. 	void *			tx_buffer;
    39. 

  39. 	struct netif		netif;
    40. 

  40. 	unsigned		max_pkt_sz;
    41. 

  41. 	unsigned		min_pkt_sz;
    42. 

  42. 	struct socket		* raw_socket;
    43. 

  43. };
    44. 

  44. 

  45. int driver_tx_enqueue(struct nic * nic, struct pbuf * pbuf);
    46. 

  46. void driver_tx_dequeue(struct nic * nic);
    47. 

  47. struct packet_q * driver_tx_head(struct nic * nic);
    48. 

  48. 

  49. /*
    50. 

  50.  * Transmit the next packet in the TX queue of this device. Returns 1 if
    51. 

  51.  * success, 0 otherwise.
    52. 

  52.  */
    53. 

  53. int driver_tx(struct nic * nic);
    54. 

  54. int raw_socket_input(struct pbuf * pbuf, struct nic * nic);
    55. 

  55. 

  56. #endif /* __LWIP_DRIVER_H_ */
    57.