/drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.h

http://github.com/mirrors/linux · C Header · 63 lines · 44 code · 11 blank · 8 comment · 0 complexity · ee100a4d79b7dfd6e3927aa526d82335 MD5 · raw file 

    

  1. /* SPDX-License-Identifier: GPL-2.0 */
    2. 

  2. /* Copyright(c) 1999 - 2018 Intel Corporation. */
    3. 

  3. 

  4. #ifndef _IXGBE_FCOE_H
    5. 

  5. #define _IXGBE_FCOE_H
    6. 

  6. 

  7. #include <scsi/fc/fc_fs.h>
    8. 

  8. #include <scsi/fc/fc_fcoe.h>
    9. 

  9. 

  10. /* shift bits within STAT fo FCSTAT */
    11. 

  11. #define IXGBE_RXDADV_FCSTAT_SHIFT	4
    12. 

  12. 

  13. /* ddp user buffer */
    14. 

  14. #define IXGBE_BUFFCNT_MAX	256	/* 8 bits bufcnt */
    15. 

  15. #define IXGBE_FCPTR_ALIGN	16
    16. 

  16. #define IXGBE_FCPTR_MAX	(IXGBE_BUFFCNT_MAX * sizeof(dma_addr_t))
    17. 

  17. #define IXGBE_FCBUFF_4KB	0x0
    18. 

  18. #define IXGBE_FCBUFF_8KB	0x1
    19. 

  19. #define IXGBE_FCBUFF_16KB	0x2
    20. 

  20. #define IXGBE_FCBUFF_64KB	0x3
    21. 

  21. #define IXGBE_FCBUFF_MAX	65536	/* 64KB max */
    22. 

  22. #define IXGBE_FCBUFF_MIN	4096	/* 4KB min */
    23. 

  23. #define IXGBE_FCOE_DDP_MAX	512	/* 9 bits xid */
    24. 

  24. #define IXGBE_FCOE_DDP_MAX_X550	2048	/* 11 bits xid */
    25. 

  25. 

  26. /* Default traffic class to use for FCoE */
    27. 

  27. #define IXGBE_FCOE_DEFTC	3
    28. 

  28. 

  29. /* fcerr */
    30. 

  30. #define IXGBE_FCERR_BADCRC       0x00100000
    31. 

  31. 

  32. /* FCoE DDP for target mode */
    33. 

  33. #define __IXGBE_FCOE_TARGET	1
    34. 

  34. 

  35. struct ixgbe_fcoe_ddp {
    36. 

  36. 	int len;
    37. 

  37. 	u32 err;
    38. 

  38. 	unsigned int sgc;
    39. 

  39. 	struct scatterlist *sgl;
    40. 

  40. 	dma_addr_t udp;
    41. 

  41. 	u64 *udl;
    42. 

  42. 	struct dma_pool *pool;
    43. 

  43. };
    44. 

  44. 

  45. /* per cpu variables */
    46. 

  46. struct ixgbe_fcoe_ddp_pool {
    47. 

  47. 	struct dma_pool *pool;
    48. 

  48. 	u64 noddp;
    49. 

  49. 	u64 noddp_ext_buff;
    50. 

  50. };
    51. 

  51. 

  52. struct ixgbe_fcoe {
    53. 

  53. 	struct ixgbe_fcoe_ddp_pool __percpu *ddp_pool;
    54. 

  54. 	atomic_t refcnt;
    55. 

  55. 	spinlock_t lock;
    56. 

  56. 	struct ixgbe_fcoe_ddp ddp[IXGBE_FCOE_DDP_MAX_X550];
    57. 

  57. 	void *extra_ddp_buffer;
    58. 

  58. 	dma_addr_t extra_ddp_buffer_dma;
    59. 

  59. 	unsigned long mode;
    60. 

  60. 	u8 up;
    61. 

  61. };
    62. 

  62. 

  63. #endif /* _IXGBE_FCOE_H */
    64.